PDFLATEX = xelatex
LATEXOPTS = -interaction=batchmode
+ifeq ($(KBUILD_VERBOSE),0)
+SPHINXOPTS += "-q"
+endif
+
# User-friendly check for sphinx-build
HAVE_SPHINX := $(shell if which $(SPHINXBUILD) >/dev/null 2>&1; then echo 1; else echo 0; fi)
privileges, such as allowing a user to set up user namespace UID/GID mappings.
Note on GID policies and setgroups()
-==================
+====================================
In v5.9 we are adding support for limiting CAP_SETGID privileges as was done
previously for CAP_SETUID. However, for compatibility with common sandboxing
related code conventions in userspace, we currently allow arbitrary
statistics of the given idle state. That information is exposed by the kernel
via ``sysfs``.
-For each CPU in the system, there is a :file:`/sys/devices/system/cpu<N>/cpuidle/`
+For each CPU in the system, there is a :file:`/sys/devices/system/cpu/cpu<N>/cpuidle/`
directory in ``sysfs``, where the number ``<N>`` is assigned to the given
CPU at the initialization time. That directory contains a set of subdirectories
called :file:`state0`, :file:`state1` and so on, up to the number of idle state
residency.
``below``
- Total number of times this idle state had been asked for, but cerainly
+ Total number of times this idle state had been asked for, but certainly
a deeper idle state would have been a better match for the observed idle
duration.
0: 0 1 2 3 4 5 6 7
RSS hash key:
84:50:f4:00:a8:15:d1:a7:e9:7f:1d:60:35:c7:47:25:42:97:74:ca:56:bb:b6:a1:d8:43:e3:c9:0c:fd:17:55:c2:3a:4d:69:ed:f1:42:89
+
netdev_tstamp_prequeue
----------------------
* User Manual
http://dl.linux-sunxi.org/A64/Allwinner%20A64%20User%20Manual%20v1.0.pdf
+
+ - Allwinner H6
+
+ * Datasheet
+
+ https://linux-sunxi.org/images/5/5c/Allwinner_H6_V200_Datasheet_V1.1.pdf
+
+ * User Manual
+
+ https://linux-sunxi.org/images/4/46/Allwinner_H6_V200_User_Manual_V1.1.pdf
support for Sphinx v3.0 and above is brand new. Be prepared for
possible issues in the generated output.
''')
- if minor > 0 or patch >= 2:
+ if (major > 3) or (minor > 0 or patch >= 2):
# Sphinx c function parser is more pedantic with regards to type
# checking. Due to that, having macros at c:function cause problems.
# Those needed to be scaped by using c_id_attributes[] array
pass::
ok 28 - kmalloc_double_kzfree
+
or, if kmalloc failed::
# kmalloc_large_oob_right: ASSERTION FAILED at lib/test_kasan.c:163
Expected ptr is not null, but is
not ok 4 - kmalloc_large_oob_right
+
or, if a KASAN report was expected, but not found::
# kmalloc_double_kzfree: EXPECTATION FAILED at lib/test_kasan.c:629
config MISC_EXAMPLE_TEST
bool "Test for my example"
- depends on MISC_EXAMPLE && KUNIT
+ depends on MISC_EXAMPLE && KUNIT=y
and the following to ``drivers/misc/Makefile``:
...will run the tests.
+.. note::
+ Note that you should make sure your test depends on ``KUNIT=y`` in Kconfig
+ if the test does not support module build. Otherwise, it will trigger
+ compile errors if ``CONFIG_KUNIT`` is ``m``.
+
Writing new tests for other architectures
-----------------------------------------
please refer the following document to know more about the binding rules
for these system controllers:
-Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt
+Documentation/devicetree/bindings/arm/hisilicon/hisilicon.yaml
Required Properties:
--- /dev/null
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/can/can-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: CAN Controller Generic Binding
+
+maintainers:
+ - Marc Kleine-Budde <mkl@pengutronix.de>
+
+properties:
+ $nodename:
+ pattern: "^can(@.*)?$"
+
+additionalProperties: true
+
+...
--- /dev/null
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/can/fsl,flexcan.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title:
+ Flexcan CAN controller on Freescale's ARM and PowerPC system-on-a-chip (SOC).
+
+maintainers:
+ - Marc Kleine-Budde <mkl@pengutronix.de>
+
+allOf:
+ - $ref: can-controller.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - fsl,imx8qm-flexcan
+ - fsl,imx8mp-flexcan
+ - fsl,imx6q-flexcan
+ - fsl,imx53-flexcan
+ - fsl,imx35-flexcan
+ - fsl,imx28-flexcan
+ - fsl,imx25-flexcan
+ - fsl,p1010-flexcan
+ - fsl,vf610-flexcan
+ - fsl,ls1021ar2-flexcan
+ - fsl,lx2160ar1-flexcan
+ - items:
+ - enum:
+ - fsl,imx7d-flexcan
+ - fsl,imx6ul-flexcan
+ - fsl,imx6sx-flexcan
+ - const: fsl,imx6q-flexcan
+ - items:
+ - enum:
+ - fsl,ls1028ar1-flexcan
+ - const: fsl,lx2160ar1-flexcan
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: ipg
+ - const: per
+
+ clock-frequency:
+ description: |
+ The oscillator frequency driving the flexcan device, filled in by the
+ boot loader. This property should only be used the used operating system
+ doesn't support the clocks and clock-names property.
+
+ xceiver-supply:
+ description: Regulator that powers the CAN transceiver.
+
+ big-endian:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description: |
+ This means the registers of FlexCAN controller are big endian. This is
+ optional property.i.e. if this property is not present in device tree
+ node then controller is assumed to be little endian. If this property is
+ present then controller is assumed to be big endian.
+
+ fsl,stop-mode:
+ description: |
+ Register bits of stop mode control.
+
+ The format should be as follows:
+ <gpr req_gpr req_bit>
+ gpr is the phandle to general purpose register node.
+ req_gpr is the gpr register offset of CAN stop request.
+ req_bit is the bit offset of CAN stop request.
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ items:
+ - description: The 'gpr' is the phandle to general purpose register node.
+ - description: The 'req_gpr' is the gpr register offset of CAN stop request.
+ maximum: 0xff
+ - description: The 'req_bit' is the bit offset of CAN stop request.
+ maximum: 0x1f
+
+ fsl,clk-source:
+ description: |
+ Select the clock source to the CAN Protocol Engine (PE). It's SoC
+ implementation dependent. Refer to RM for detailed definition. If this
+ property is not set in device tree node then driver selects clock source 1
+ by default.
+ 0: clock source 0 (oscillator clock)
+ 1: clock source 1 (peripheral clock)
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 1
+ minimum: 0
+ maximum: 1
+
+ wakeup-source:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ Enable CAN remote wakeup.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ can@1c000 {
+ compatible = "fsl,p1010-flexcan";
+ reg = <0x1c000 0x1000>;
+ interrupts = <48 0x2>;
+ interrupt-parent = <&mpic>;
+ clock-frequency = <200000000>;
+ fsl,clk-source = <0>;
+ };
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ can@2090000 {
+ compatible = "fsl,imx6q-flexcan";
+ reg = <0x02090000 0x4000>;
+ interrupts = <0 110 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clks 1>, <&clks 2>;
+ clock-names = "ipg", "per";
+ fsl,stop-mode = <&gpr 0x34 28>;
+ };
+++ /dev/null
-Flexcan CAN controller on Freescale's ARM and PowerPC system-on-a-chip (SOC).
-
-Required properties:
-
-- compatible : Should be "fsl,<processor>-flexcan"
-
- where <processor> is imx8qm, imx6q, imx28, imx53, imx35, imx25, p1010,
- vf610, ls1021ar2, lx2160ar1, ls1028ar1.
-
- The ls1028ar1 must be followed by lx2160ar1, e.g.
- - "fsl,ls1028ar1-flexcan", "fsl,lx2160ar1-flexcan"
-
- An implementation should also claim any of the following compatibles
- that it is fully backwards compatible with:
-
- - fsl,p1010-flexcan
-
-- reg : Offset and length of the register set for this device
-- interrupts : Interrupt tuple for this device
-
-Optional properties:
-
-- clock-frequency : The oscillator frequency driving the flexcan device
-
-- xceiver-supply: Regulator that powers the CAN transceiver
-
-- big-endian: This means the registers of FlexCAN controller are big endian.
- This is optional property.i.e. if this property is not present in
- device tree node then controller is assumed to be little endian.
- if this property is present then controller is assumed to be big
- endian.
-
-- fsl,stop-mode: register bits of stop mode control, the format is
- <&gpr req_gpr req_bit>.
- gpr is the phandle to general purpose register node.
- req_gpr is the gpr register offset of CAN stop request.
- req_bit is the bit offset of CAN stop request.
-
-- fsl,clk-source: Select the clock source to the CAN Protocol Engine (PE).
- It's SoC Implementation dependent. Refer to RM for detailed
- definition. If this property is not set in device tree node
- then driver selects clock source 1 by default.
- 0: clock source 0 (oscillator clock)
- 1: clock source 1 (peripheral clock)
-
-- wakeup-source: enable CAN remote wakeup
-
-Example:
-
- can@1c000 {
- compatible = "fsl,p1010-flexcan";
- reg = <0x1c000 0x1000>;
- interrupts = <48 0x2>;
- interrupt-parent = <&mpic>;
- clock-frequency = <200000000>; // filled in by bootloader
- fsl,clk-source = <0>; // select clock source 0 for PE
- };
.. kernel-doc:: fs/dax.c
:export:
-.. kernel-doc:: fs/direct-io.c
- :export:
-
.. kernel-doc:: fs/libfs.c
:export:
===================
.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
- :doc: AMDGPU XGMI Support
-
-.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
- :internal:
AMDGPU RAS Support
==================
.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
:doc: AMDGPU RAS sysfs gpu_vram_bad_pages Interface
-.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
- :internal:
-
Sample Code
-----------
Sample code for testing error injection can be found here:
integrated 12 bit SAR ADC, accessed using a PMBus interface.
The driver is a client driver to the core PMBus driver. Please see
-Documentation/hwmon/pmbus for details on PMBus client drivers.
+Documentation/hwmon/pmbus.rst for details on PMBus client drivers.
Sysfs entries
mcp3021
menf21bmc
mlxreg-fan
+ mp2975
nct6683
nct6775
nct7802
vendor dual-loop, digital, multi-phase controller MP2975.
This device:
+
- Supports up to two power rail.
- Provides 8 pulse-width modulations (PWMs), and can be configured up
to 8-phase operation for rail 1 and up to 4-phase operation for rail
10-mV DAC, IMVP9 mode with 5-mV DAC.
Device supports:
+
- SVID interface.
- AVSBus interface.
Device complaint with:
+
- PMBus rev 1.3 interface.
Device supports direct format for reading output current, output voltage,
The below VID modes are supported: VR12, VR13, IMVP9.
The driver provides the next attributes for the current:
+
- for current in: input, maximum alarm;
- for current out input, maximum alarm and highest values;
- for phase current: input and label.
-attributes.
+ attributes.
+
The driver exports the following attributes via the 'sysfs' files, where
+
- 'n' is number of telemetry pages (from 1 to 2);
- 'k' is number of configured phases (from 1 to 8);
- indexes 1, 1*n for "iin";
**curr[1-{2n+k}]_label**
The driver provides the next attributes for the voltage:
+
- for voltage in: input, high critical threshold, high critical alarm, all only
from page 0;
- for voltage out: input, low and high critical thresholds, low and high
critical alarms, from pages 0 and 1;
+
The driver exports the following attributes via the 'sysfs' files, where
+
- 'n' is number of telemetry pages (from 1 to 2);
- indexes 1 for "iin";
- indexes n+1, n+2 for "vout";
**in[2-{n+1}1_lcrit_alarm**
The driver provides the next attributes for the power:
+
- for power in alarm and input.
- for power out: highest and input.
+
The driver exports the following attributes via the 'sysfs' files, where
+
- 'n' is number of telemetry pages (from 1 to 2);
- indexes 1 for "pin";
- indexes n+1, n+2 for "pout";
(4 usages * n STATEs + 1) categories:
where the 4 usages can be:
+
- 'ever held in STATE context'
- 'ever held as readlock in STATE context'
- 'ever held with STATE enabled'
where the n STATEs are coded in kernel/locking/lockdep_states.h and as of
now they include:
+
- hardirq
- softirq
where the last 1 category is:
+
- 'ever used' [ == !unused ]
When locking rules are violated, these usage bits are presented in the
+--------------+-------------+--------------+
| | irq enabled | irq disabled |
+--------------+-------------+--------------+
- | ever in irq | ? | - |
+ | ever in irq | '?' | '-' |
+--------------+-------------+--------------+
- | never in irq | + | . |
+ | never in irq | '+' | '.' |
+--------------+-------------+--------------+
The character '-' suggests irq is disabled because if otherwise the
BD_MUTEX_PARTITION
};
-mutex_lock_nested(&bdev->bd_contains->bd_mutex, BD_MUTEX_PARTITION);
+ mutex_lock_nested(&bdev->bd_contains->bd_mutex, BD_MUTEX_PARTITION);
In this case the locking is done on a bdev object that is known to be a
partition.
----------------
The validator tracks a maximum of MAX_LOCKDEP_KEYS number of lock classes.
-Exceeding this number will trigger the following lockdep warning:
+Exceeding this number will trigger the following lockdep warning::
(DEBUG_LOCKS_WARN_ON(id >= MAX_LOCKDEP_KEYS))
The difference between recursive readers and non-recursive readers is because:
recursive readers get blocked only by a write lock *holder*, while non-recursive
-readers could get blocked by a write lock *waiter*. Considering the follow example:
+readers could get blocked by a write lock *waiter*. Considering the follow
+example::
TASK A: TASK B:
Block condition matrix, Y means the row blocks the column, and N means otherwise.
- | E | r | R |
+---+---+---+---+
- E | Y | Y | Y |
+ | | E | r | R |
+ +---+---+---+---+
+ | E | Y | Y | Y |
+ +---+---+---+---+
+ | r | Y | Y | N |
+---+---+---+---+
- r | Y | Y | N |
+ | R | Y | Y | N |
+---+---+---+---+
- R | Y | Y | N |
(W: writers, r: non-recursive readers, R: recursive readers)
acquired recursively. Unlike non-recursive read locks, recursive read locks
only get blocked by current write lock *holders* other than write lock
-*waiters*, for example:
+*waiters*, for example::
TASK A: TASK B:
even true for two non-recursive read locks). A non-recursive lock can block the
corresponding recursive lock, and vice versa.
-A deadlock case with recursive locks involved is as follow:
+A deadlock case with recursive locks involved is as follow::
TASK A: TASK B:
dependencies, but we can show that 4 types of lock dependencies are enough for
deadlock detection.
-For each lock dependency:
+For each lock dependency::
L1 -> L2
With the above combination for simplification, there are 4 types of dependency edges
in the lockdep graph:
-1) -(ER)->: exclusive writer to recursive reader dependency, "X -(ER)-> Y" means
+1) -(ER)->:
+ exclusive writer to recursive reader dependency, "X -(ER)-> Y" means
X -> Y and X is a writer and Y is a recursive reader.
-2) -(EN)->: exclusive writer to non-recursive locker dependency, "X -(EN)-> Y" means
+2) -(EN)->:
+ exclusive writer to non-recursive locker dependency, "X -(EN)-> Y" means
X -> Y and X is a writer and Y is either a writer or non-recursive reader.
-3) -(SR)->: shared reader to recursive reader dependency, "X -(SR)-> Y" means
+3) -(SR)->:
+ shared reader to recursive reader dependency, "X -(SR)-> Y" means
X -> Y and X is a reader (recursive or not) and Y is a recursive reader.
-4) -(SN)->: shared reader to non-recursive locker dependency, "X -(SN)-> Y" means
+4) -(SN)->:
+ shared reader to non-recursive locker dependency, "X -(SN)-> Y" means
X -> Y and X is a reader (recursive or not) and Y is either a writer or
non-recursive reader.
-Note that given two locks, they may have multiple dependencies between them, for example:
+Note that given two locks, they may have multiple dependencies between them,
+for example::
TASK A:
Proof for sufficiency (Lemma 1):
-Let's say we have a strong circle:
+Let's say we have a strong circle::
L1 -> L2 ... -> Ln -> L1
-, which means we have dependencies:
+, which means we have dependencies::
L1 -> L2
L2 -> L3
for a lock held by P1. Let's name the lock Px is waiting as Lx, so since P1 is waiting
for L1 and holding Ln, so we will have Ln -> L1 in the dependency graph. Similarly,
we have L1 -> L2, L2 -> L3, ..., Ln-1 -> Ln in the dependency graph, which means we
-have a circle:
+have a circle::
Ln -> L1 -> L2 -> ... -> Ln
that both the name (as reported by ``fw.app.name``) and version are
required to uniquely identify the package.
* - ``fw.app.bundle_id``
+ - running
- 0xc0000001
- Unique identifier for the DDP package loaded in the device. Also
referred to as the DDP Track ID. Can be used to uniquely identify
SAE J1939 defines a higher layer protocol on CAN. It implements a more
sophisticated addressing scheme and extends the maximum packet size above 8
bytes. Several derived specifications exist, which differ from the original
-J1939 on the application level, like MilCAN A, NMEA2000 and especially
+J1939 on the application level, like MilCAN A, NMEA2000, and especially
ISO-11783 (ISOBUS). This last one specifies the so-called ETP (Extended
-Transport Protocol) which is has been included in this implementation. This
+Transport Protocol), which has been included in this implementation. This
results in a maximum packet size of ((2 ^ 24) - 1) * 7 bytes == 111 MiB.
Specifications used
addressing and transport methods used by J1939.
* **Addressing:** when a process on an ECU communicates via J1939, it should
- not necessarily know its source address. Although at least one process per
+ not necessarily know its source address. Although, at least one process per
ECU should know the source address. Other processes should be able to reuse
that address. This way, address parameters for different processes
cooperating for the same ECU, are not duplicated. This way of working is
- closely related to the UNIX concept where programs do just one thing, and do
+ closely related to the UNIX concept, where programs do just one thing and do
it well.
* **Dynamic addressing:** Address Claiming in J1939 is time critical.
- Furthermore data transport should be handled properly during the address
+ Furthermore, data transport should be handled properly during the address
negotiation. Putting this functionality in the kernel eliminates it as a
requirement for _every_ user space process that communicates via J1939. This
results in a consistent J1939 bus with proper addressing.
The J1939 sockets operate on CAN network devices (see SocketCAN). Any J1939
user space library operating on CAN raw sockets will still operate properly.
-Since such library does not communicate with the in-kernel implementation, care
+Since such a library does not communicate with the in-kernel implementation, care
must be taken that these two do not interfere. In practice, this means they
cannot share ECU addresses. A single ECU (or virtual ECU) address is used by
the library exclusively, or by the in-kernel system exclusively.
8 bits : PS (PDU Specific)
In J1939-21 distinction is made between PDU1 format (where PF < 240) and PDU2
-format (where PF >= 240). Furthermore, when using PDU2 format, the PS-field
+format (where PF >= 240). Furthermore, when using the PDU2 format, the PS-field
contains a so-called Group Extension, which is part of the PGN. When using PDU2
format, the Group Extension is set in the PS-field.
On the other hand, when using PDU1 format, the PS-field contains a so-called
Destination Address, which is _not_ part of the PGN. When communicating a PGN
-from user space to kernel (or visa versa) and PDU2 format is used, the PS-field
+from user space to kernel (or vice versa) and PDU2 format is used, the PS-field
of the PGN shall be set to zero. The Destination Address shall be set
elsewhere.
Both static and dynamic addressing methods can be used.
-For static addresses, no extra checks are made by the kernel, and provided
+For static addresses, no extra checks are made by the kernel and provided
addresses are considered right. This responsibility is for the OEM or system
integrator.
For dynamic addressing, so-called Address Claiming, extra support is foreseen
-in the kernel. In J1939 any ECU is known by it's 64-bit NAME. At the moment of
+in the kernel. In J1939 any ECU is known by its 64-bit NAME. At the moment of
a successful address claim, the kernel keeps track of both NAME and source
address being claimed. This serves as a base for filter schemes. By default,
-packets with a destination that is not locally, will be rejected.
+packets with a destination that is not locally will be rejected.
Mixed mode packets (from a static to a dynamic address or vice versa) are
allowed. The BSD sockets define separate API calls for getting/setting the
---------
On CAN, you first need to open a socket for communicating over a CAN network.
-To use J1939, #include <linux/can/j1939.h>. From there, <linux/can.h> will be
+To use J1939, ``#include <linux/can/j1939.h>``. From there, ``<linux/can.h>`` will be
included too. To open a socket, use:
.. code-block:: C
s = socket(PF_CAN, SOCK_DGRAM, CAN_J1939);
-J1939 does use SOCK_DGRAM sockets. In the J1939 specification, connections are
+J1939 does use ``SOCK_DGRAM`` sockets. In the J1939 specification, connections are
mentioned in the context of transport protocol sessions. These still deliver
-packets to the other end (using several CAN packets). SOCK_STREAM is not
+packets to the other end (using several CAN packets). ``SOCK_STREAM`` is not
supported.
-After the successful creation of the socket, you would normally use the bind(2)
-and/or connect(2) system call to bind the socket to a CAN interface. After
-binding and/or connecting the socket, you can read(2) and write(2) from/to the
-socket or use send(2), sendto(2), sendmsg(2) and the recv*() counterpart
+After the successful creation of the socket, you would normally use the ``bind(2)``
+and/or ``connect(2)`` system call to bind the socket to a CAN interface. After
+binding and/or connecting the socket, you can ``read(2)`` and ``write(2)`` from/to the
+socket or use ``send(2)``, ``sendto(2)``, ``sendmsg(2)`` and the ``recv*()`` counterpart
operations on the socket as usual. There are also J1939 specific socket options
described below.
-In order to send data, a bind(2) must have been successful. bind(2) assigns a
+In order to send data, a ``bind(2)`` must have been successful. ``bind(2)`` assigns a
local address to a socket.
-Different from CAN is that the payload data is just the data that get send,
-without it's header info. The header info is derived from the sockaddr supplied
-to bind(2), connect(2), sendto(2) and recvfrom(2). A write(2) with size 4 will
+Different from CAN is that the payload data is just the data that get sends,
+without its header info. The header info is derived from the sockaddr supplied
+to ``bind(2)``, ``connect(2)``, ``sendto(2)`` and ``recvfrom(2)``. A ``write(2)`` with size 4 will
result in a packet with 4 bytes.
The sockaddr structure has extensions for use with J1939 as specified below:
} can_addr;
}
-can_family & can_ifindex serve the same purpose as for other SocketCAN sockets.
+``can_family`` & ``can_ifindex`` serve the same purpose as for other SocketCAN sockets.
-can_addr.j1939.pgn specifies the PGN (max 0x3ffff). Individual bits are
+``can_addr.j1939.pgn`` specifies the PGN (max 0x3ffff). Individual bits are
specified above.
-can_addr.j1939.name contains the 64-bit J1939 NAME.
+``can_addr.j1939.name`` contains the 64-bit J1939 NAME.
-can_addr.j1939.addr contains the address.
+``can_addr.j1939.addr`` contains the address.
-The bind(2) system call assigns the local address, i.e. the source address when
-sending packages. If a PGN during bind(2) is set, it's used as a RX filter.
-I.e. only packets with a matching PGN are received. If an ADDR or NAME is set
+The ``bind(2)`` system call assigns the local address, i.e. the source address when
+sending packages. If a PGN during ``bind(2)`` is set, it's used as a RX filter.
+I.e. only packets with a matching PGN are received. If an ADDR or NAME is set
it is used as a receive filter, too. It will match the destination NAME or ADDR
of the incoming packet. The NAME filter will work only if appropriate Address
Claiming for this name was done on the CAN bus and registered/cached by the
kernel.
-On the other hand connect(2) assigns the remote address, i.e. the destination
-address. The PGN from connect(2) is used as the default PGN when sending
+On the other hand ``connect(2)`` assigns the remote address, i.e. the destination
+address. The PGN from ``connect(2)`` is used as the default PGN when sending
packets. If ADDR or NAME is set it will be used as the default destination ADDR
-or NAME. Further a set ADDR or NAME during connect(2) is used as a receive
+or NAME. Further a set ADDR or NAME during ``connect(2)`` is used as a receive
filter. It will match the source NAME or ADDR of the incoming packet.
-Both write(2) and send(2) will send a packet with local address from bind(2) and
-the remote address from connect(2). Use sendto(2) to overwrite the destination
+Both ``write(2)`` and ``send(2)`` will send a packet with local address from ``bind(2)`` and the
+remote address from ``connect(2)``. Use ``sendto(2)`` to overwrite the destination
address.
-If can_addr.j1939.name is set (!= 0) the NAME is looked up by the kernel and
-the corresponding ADDR is used. If can_addr.j1939.name is not set (== 0),
-can_addr.j1939.addr is used.
+If ``can_addr.j1939.name`` is set (!= 0) the NAME is looked up by the kernel and
+the corresponding ADDR is used. If ``can_addr.j1939.name`` is not set (== 0),
+``can_addr.j1939.addr`` is used.
When creating a socket, reasonable defaults are set. Some options can be
-modified with setsockopt(2) & getsockopt(2).
+modified with ``setsockopt(2)`` & ``getsockopt(2)``.
RX path related options:
-- SO_J1939_FILTER - configure array of filters
-- SO_J1939_PROMISC - disable filters set by bind(2) and connect(2)
+- ``SO_J1939_FILTER`` - configure array of filters
+- ``SO_J1939_PROMISC`` - disable filters set by ``bind(2)`` and ``connect(2)``
By default no broadcast packets can be send or received. To enable sending or
-receiving broadcast packets use the socket option SO_BROADCAST:
+receiving broadcast packets use the socket option ``SO_BROADCAST``:
.. code-block:: C
+---------------------------+
TX path related options:
-SO_J1939_SEND_PRIO - change default send priority for the socket
+``SO_J1939_SEND_PRIO`` - change default send priority for the socket
Message Flags during send() and Related System Calls
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-send(2), sendto(2) and sendmsg(2) take a 'flags' argument. Currently
+``send(2)``, ``sendto(2)`` and ``sendmsg(2)`` take a 'flags' argument. Currently
supported flags are:
-* MSG_DONTWAIT, i.e. non-blocking operation.
+* ``MSG_DONTWAIT``, i.e. non-blocking operation.
recvmsg(2)
^^^^^^^^^^
-In most cases recvmsg(2) is needed if you want to extract more information than
-recvfrom(2) can provide. For example package priority and timestamp. The
+In most cases ``recvmsg(2)`` is needed if you want to extract more information than
+``recvfrom(2)`` can provide. For example package priority and timestamp. The
Destination Address, name and packet priority (if applicable) are attached to
-the msghdr in the recvmsg(2) call. They can be extracted using cmsg(3) macros,
-with cmsg_level == SOL_J1939 && cmsg_type == SCM_J1939_DEST_ADDR,
-SCM_J1939_DEST_NAME or SCM_J1939_PRIO. The returned data is a uint8_t for
-priority and dst_addr, and uint64_t for dst_name.
+the msghdr in the ``recvmsg(2)`` call. They can be extracted using ``cmsg(3)`` macros,
+with ``cmsg_level == SOL_J1939 && cmsg_type == SCM_J1939_DEST_ADDR``,
+``SCM_J1939_DEST_NAME`` or ``SCM_J1939_PRIO``. The returned data is a ``uint8_t`` for
+``priority`` and ``dst_addr``, and ``uint64_t`` for ``dst_name``.
.. code-block:: C
Distinction has to be made between using the claimed address and doing an
address claim. To use an already claimed address, one has to fill in the
-j1939.name member and provide it to bind(2). If the name had claimed an address
+``j1939.name`` member and provide it to ``bind(2)``. If the name had claimed an address
earlier, all further messages being sent will use that address. And the
-j1939.addr member will be ignored.
+``j1939.addr`` member will be ignored.
An exception on this is PGN 0x0ee00. This is the "Address Claim/Cannot Claim
-Address" message and the kernel will use the j1939.addr member for that PGN if
+Address" message and the kernel will use the ``j1939.addr`` member for that PGN if
necessary.
To claim an address following code example can be used:
If another ECU claims the address, the kernel will mark the NAME-SA expired.
No socket bound to the NAME can send packets (other than address claims). To
-claim another address, some socket bound to NAME, must bind(2) again, but with
-only j1939.addr changed to the new SA, and must then send a valid address claim
+claim another address, some socket bound to NAME, must ``bind(2)`` again, but with
+only ``j1939.addr`` changed to the new SA, and must then send a valid address claim
packet. This restarts the state machine in the kernel (and any other
participant on the bus) for this NAME.
-can-utils also include the jacd tool, so it can be used as code example or as
+``can-utils`` also include the ``j1939acd`` tool, so it can be used as code example or as
default Address Claiming daemon.
Send Examples
bind(sock, (struct sockaddr *)&baddr, sizeof(baddr));
-Now, the socket 'sock' is bound to the SA 0x20. Since no connect(2) was called,
-at this point we can use only sendto(2) or sendmsg(2).
+Now, the socket 'sock' is bound to the SA 0x20. Since no ``connect(2)`` was called,
+at this point we can use only ``sendto(2)`` or ``sendmsg(2)``.
Send:
.can_family = AF_CAN,
.can_addr.j1939 = {
.name = J1939_NO_NAME;
- .pgn = 0x30,
- .addr = 0x12300,
+ .addr = 0x30,
+ .pgn = 0x12300,
},
};
translated to netlink attributes when dumped. Drivers must not overwrite
the statistics they don't report with 0.
-.. kernel-doc:: include/linux/ethtool.h
- :identifiers: ethtool_pause_stats
+- ethtool_pause_stats()
import re
from itertools import chain
+#
+# Python 2 lacks re.ASCII...
+#
+try:
+ ascii_p3 = re.ASCII
+except AttributeError:
+ ascii_p3 = 0
+
#
# Regex nastiness. Of course.
# Try to identify "function()" that's not already marked up some
# :c:func: block (i.e. ":c:func:`mmap()`s" flakes out), so the last
# bit tries to restrict matches to things that won't create trouble.
#
-RE_function = re.compile(r'\b(([a-zA-Z_]\w+)\(\))', flags=re.ASCII)
+RE_function = re.compile(r'\b(([a-zA-Z_]\w+)\(\))', flags=ascii_p3)
#
# Sphinx 2 uses the same :c:type role for struct, union, enum and typedef
#
RE_generic_type = re.compile(r'\b(struct|union|enum|typedef)\s+([a-zA-Z_]\w+)',
- flags=re.ASCII)
+ flags=ascii_p3)
#
# Sphinx 3 uses a different C role for each one of struct, union, enum and
# typedef
#
-RE_struct = re.compile(r'\b(struct)\s+([a-zA-Z_]\w+)', flags=re.ASCII)
-RE_union = re.compile(r'\b(union)\s+([a-zA-Z_]\w+)', flags=re.ASCII)
-RE_enum = re.compile(r'\b(enum)\s+([a-zA-Z_]\w+)', flags=re.ASCII)
-RE_typedef = re.compile(r'\b(typedef)\s+([a-zA-Z_]\w+)', flags=re.ASCII)
+RE_struct = re.compile(r'\b(struct)\s+([a-zA-Z_]\w+)', flags=ascii_p3)
+RE_union = re.compile(r'\b(union)\s+([a-zA-Z_]\w+)', flags=ascii_p3)
+RE_enum = re.compile(r'\b(enum)\s+([a-zA-Z_]\w+)', flags=ascii_p3)
+RE_typedef = re.compile(r'\b(typedef)\s+([a-zA-Z_]\w+)', flags=ascii_p3)
#
# Detects a reference to a documentation page of the form Documentation/... with
spec_ctrl
accelerators/ocxl
ioctl/index
+ iommu
media/index
.. only:: subproject and html
L: linux-iio@vger.kernel.org
S: Supported
W: http://ez.analog.com/community/linux-device-drivers
-F: Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.txt
+F: Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml
F: drivers/iio/adc/ad7768-1.c
ANALOG DEVICES INC AD7780 DRIVER
L: linux-usb@vger.kernel.org
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb.git
-F: Documentation/devicetree/bindings/usb/cdns-usb3.txt
+F: Documentation/devicetree/bindings/usb/cdns,usb3.yaml
F: drivers/usb/cdns3/
CADET FM/AM RADIO RECEIVER DRIVER
M: john.garry@huawei.com
S: Maintained
W: http://www.hisilicon.com
-F: Documentation/devicetree/bindings/arm/hisilicon/hisilicon-low-pin-count.txt
+F: Documentation/devicetree/bindings/arm/hisilicon/low-pin-count.yaml
F: drivers/bus/hisi_lpc.c
HISILICON NETWORK SUBSYSTEM 3 DRIVER (HNS3)
F: drivers/mailbox/qcom-ipcc.c
F: include/dt-bindings/mailbox/qcom-ipcc.h
+QUALCOMM IPQ4019 VQMMC REGULATOR DRIVER
+M: Robert Marko <robert.marko@sartura.hr>
+M: Luka Perkov <luka.perkov@sartura.hr>
+L: linux-arm-msm@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/regulator/vqmmc-ipq4019-regulator.yaml
+F: drivers/regulator/vqmmc-ipq4019-regulator.c
+
QUALCOMM RMNET DRIVER
M: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
M: Sean Tranchetti <stranche@codeaurora.org>
R: Sergei Shtylyov <sergei.shtylyov@gmail.com>
L: netdev@vger.kernel.org
L: linux-renesas-soc@vger.kernel.org
-F: Documentation/devicetree/bindings/net/renesas,*.txt
F: Documentation/devicetree/bindings/net/renesas,*.yaml
F: drivers/net/ethernet/renesas/
F: include/linux/sh_eth.h
M: Binghui Wang <wangbinghui@hisilicon.com>
L: linux-usb@vger.kernel.org
S: Maintained
-F: Documentation/devicetree/bindings/phy/phy-hi3660-usb3.txt
+F: Documentation/devicetree/bindings/phy/hisilicon,hi3660-usb3.yaml
F: drivers/phy/hisilicon/phy-hi3660-usb3.c
USB ISP116X DRIVER
/* set highmem page free */
for_each_free_mem_range(i, NUMA_NO_NODE, MEMBLOCK_NONE,
&range_start, &range_end, NULL) {
- unsigned long start = PHYS_PFN(range_start);
- unsigned long end = PHYS_PFN(range_end);
+ unsigned long start = PFN_UP(range_start);
+ unsigned long end = PFN_DOWN(range_end);
/* Ignore complete lowmem entries */
if (end <= max_low)
add_identity_map(cmdline, cmdline + COMMAND_LINE_SIZE);
/* Load the new page-table. */
+ sev_verify_cbit(top_level_pgt);
write_cr3(top_level_pgt);
}
SYM_FUNC_END(get_sev_encryption_bit)
.code64
+
+#include "../../kernel/sev_verify_cbit.S"
+
SYM_FUNC_START(set_sev_encryption_mask)
#ifdef CONFIG_AMD_MEM_ENCRYPT
push %rbp
bts %rax, sme_me_mask(%rip) /* Create the encryption mask */
+ /*
+ * Read MSR_AMD64_SEV again and store it to sev_status. Can't do this in
+ * get_sev_encryption_bit() because this function is 32-bit code and
+ * shared between 64-bit and 32-bit boot path.
+ */
+ movl $MSR_AMD64_SEV, %ecx /* Read the SEV MSR */
+ rdmsr
+
+ /* Store MSR value in sev_status */
+ shlq $32, %rdx
+ orq %rdx, %rax
+ movq %rax, sev_status(%rip)
+
.Lno_sev_mask:
movq %rbp, %rsp /* Restore original stack pointer */
#ifdef CONFIG_AMD_MEM_ENCRYPT
.balign 8
-SYM_DATA(sme_me_mask, .quad 0)
+SYM_DATA(sme_me_mask, .quad 0)
+SYM_DATA(sev_status, .quad 0)
+SYM_DATA(sev_check_data, .quad 0)
#endif
void boot_stage1_vc(void);
void boot_stage2_vc(void);
+unsigned long sev_verify_cbit(unsigned long cr3);
+
#endif /* BOOT_COMPRESSED_MISC_H */
pr_info("Hyper-V: Using enlightened APIC (%s mode)",
x2apic_enabled() ? "x2apic" : "xapic");
/*
- * With x2apic, architectural x2apic MSRs are equivalent to the
- * respective synthetic MSRs, so there's no need to override
- * the apic accessors. The only exception is
- * hv_apic_eoi_write, because it benefits from lazy EOI when
- * available, but it works for both xapic and x2apic modes.
+ * When in x2apic mode, don't use the Hyper-V specific APIC
+ * accessors since the field layout in the ICR register is
+ * different in x2apic mode. Furthermore, the architectural
+ * x2apic MSRs function just as well as the Hyper-V
+ * synthetic APIC MSRs, so there's no benefit in having
+ * separate Hyper-V accessors for x2apic mode. The only
+ * exception is hv_apic_eoi_write, because it benefits from
+ * lazy EOI when available, but the same accessor works for
+ * both xapic and x2apic because the field layout is the same.
*/
apic_set_eoi_write(hv_apic_eoi_write);
if (!x2apic_enabled()) {
/* Setup early boot stage 4-/5-level pagetables. */
addq phys_base(%rip), %rax
+
+ /*
+ * For SEV guests: Verify that the C-bit is correct. A malicious
+ * hypervisor could lie about the C-bit position to perform a ROP
+ * attack on the guest by writing to the unencrypted stack and wait for
+ * the next RET instruction.
+ * %rsi carries pointer to realmode data and is callee-clobbered. Save
+ * and restore it.
+ */
+ pushq %rsi
+ movq %rax, %rdi
+ call sev_verify_cbit
+ popq %rsi
+
+ /* Switch to new page-table */
movq %rax, %cr3
/* Ensure I am executing from virtual addresses */
SYM_CODE_END(secondary_startup_64)
#include "verify_cpu.S"
+#include "sev_verify_cbit.S"
#ifdef CONFIG_HOTPLUG_CPU
/*
goto fail;
regs->dx = val >> 32;
+ /*
+ * This is a VC handler and the #VC is only raised when SEV-ES is
+ * active, which means SEV must be active too. Do sanity checks on the
+ * CPUID results to make sure the hypervisor does not trick the kernel
+ * into the no-sev path. This could map sensitive data unencrypted and
+ * make it accessible to the hypervisor.
+ *
+ * In particular, check for:
+ * - Hypervisor CPUID bit
+ * - Availability of CPUID leaf 0x8000001f
+ * - SEV CPUID bit.
+ *
+ * The hypervisor might still report the wrong C-bit position, but this
+ * can't be checked here.
+ */
+
+ if ((fn == 1 && !(regs->cx & BIT(31))))
+ /* Hypervisor bit */
+ goto fail;
+ else if (fn == 0x80000000 && (regs->ax < 0x8000001f))
+ /* SEV leaf check */
+ goto fail;
+ else if ((fn == 0x8000001f && !(regs->ax & BIT(1))))
+ /* SEV bit */
+ goto fail;
+
/* Skip over the CPUID two-byte opcode */
regs->ip += 2;
return ES_EXCEPTION;
}
-static bool vc_slow_virt_to_phys(struct ghcb *ghcb, struct es_em_ctxt *ctxt,
- unsigned long vaddr, phys_addr_t *paddr)
+static enum es_result vc_slow_virt_to_phys(struct ghcb *ghcb, struct es_em_ctxt *ctxt,
+ unsigned long vaddr, phys_addr_t *paddr)
{
unsigned long va = (unsigned long)vaddr;
unsigned int level;
if (user_mode(ctxt->regs))
ctxt->fi.error_code |= X86_PF_USER;
- return false;
+ return ES_EXCEPTION;
}
+ if (WARN_ON_ONCE(pte_val(*pte) & _PAGE_ENC))
+ /* Emulated MMIO to/from encrypted memory not supported */
+ return ES_UNSUPPORTED;
+
pa = (phys_addr_t)pte_pfn(*pte) << PAGE_SHIFT;
pa |= va & ~page_level_mask(level);
*paddr = pa;
- return true;
+ return ES_OK;
}
/* Include code shared with pre-decompression boot stage */
{
u64 exit_code, exit_info_1, exit_info_2;
unsigned long ghcb_pa = __pa(ghcb);
+ enum es_result res;
phys_addr_t paddr;
void __user *ref;
exit_code = read ? SVM_VMGEXIT_MMIO_READ : SVM_VMGEXIT_MMIO_WRITE;
- if (!vc_slow_virt_to_phys(ghcb, ctxt, (unsigned long)ref, &paddr)) {
- if (!read)
+ res = vc_slow_virt_to_phys(ghcb, ctxt, (unsigned long)ref, &paddr);
+ if (res != ES_OK) {
+ if (res == ES_EXCEPTION && !read)
ctxt->fi.error_code |= X86_PF_WRITE;
- return ES_EXCEPTION;
+ return res;
}
exit_info_1 = paddr;
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * sev_verify_cbit.S - Code for verification of the C-bit position reported
+ * by the Hypervisor when running with SEV enabled.
+ *
+ * Copyright (c) 2020 Joerg Roedel (jroedel@suse.de)
+ *
+ * sev_verify_cbit() is called before switching to a new long-mode page-table
+ * at boot.
+ *
+ * Verify that the C-bit position is correct by writing a random value to
+ * an encrypted memory location while on the current page-table. Then it
+ * switches to the new page-table to verify the memory content is still the
+ * same. After that it switches back to the current page-table and when the
+ * check succeeded it returns. If the check failed the code invalidates the
+ * stack pointer and goes into a hlt loop. The stack-pointer is invalidated to
+ * make sure no interrupt or exception can get the CPU out of the hlt loop.
+ *
+ * New page-table pointer is expected in %rdi (first parameter)
+ *
+ */
+SYM_FUNC_START(sev_verify_cbit)
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+ /* First check if a C-bit was detected */
+ movq sme_me_mask(%rip), %rsi
+ testq %rsi, %rsi
+ jz 3f
+
+ /* sme_me_mask != 0 could mean SME or SEV - Check also for SEV */
+ movq sev_status(%rip), %rsi
+ testq %rsi, %rsi
+ jz 3f
+
+ /* Save CR4 in %rsi */
+ movq %cr4, %rsi
+
+ /* Disable Global Pages */
+ movq %rsi, %rdx
+ andq $(~X86_CR4_PGE), %rdx
+ movq %rdx, %cr4
+
+ /*
+ * Verified that running under SEV - now get a random value using
+ * RDRAND. This instruction is mandatory when running as an SEV guest.
+ *
+ * Don't bail out of the loop if RDRAND returns errors. It is better to
+ * prevent forward progress than to work with a non-random value here.
+ */
+1: rdrand %rdx
+ jnc 1b
+
+ /* Store value to memory and keep it in %rdx */
+ movq %rdx, sev_check_data(%rip)
+
+ /* Backup current %cr3 value to restore it later */
+ movq %cr3, %rcx
+
+ /* Switch to new %cr3 - This might unmap the stack */
+ movq %rdi, %cr3
+
+ /*
+ * Compare value in %rdx with memory location. If C-bit is incorrect
+ * this would read the encrypted data and make the check fail.
+ */
+ cmpq %rdx, sev_check_data(%rip)
+
+ /* Restore old %cr3 */
+ movq %rcx, %cr3
+
+ /* Restore previous CR4 */
+ movq %rsi, %cr4
+
+ /* Check CMPQ result */
+ je 3f
+
+ /*
+ * The check failed, prevent any forward progress to prevent ROP
+ * attacks, invalidate the stack and go into a hlt loop.
+ */
+ xorq %rsp, %rsp
+ subq $0x1000, %rsp
+2: hlt
+ jmp 2b
+3:
+#endif
+ /* Return page-table pointer */
+ movq %rdi, %rax
+ ret
+SYM_FUNC_END(sev_verify_cbit)
*/
u64 sme_me_mask __section(".data") = 0;
u64 sev_status __section(".data") = 0;
+u64 sev_check_data __section(".data") = 0;
EXPORT_SYMBOL(sme_me_mask);
DEFINE_STATIC_KEY_FALSE(sev_enable_key);
EXPORT_SYMBOL_GPL(sev_enable_key);
/* set highmem page free */
for_each_free_mem_range(i, NUMA_NO_NODE, MEMBLOCK_NONE,
&range_start, &range_end, NULL) {
- unsigned long start = PHYS_PFN(range_start);
- unsigned long end = PHYS_PFN(range_end);
+ unsigned long start = PFN_UP(range_start);
+ unsigned long end = PFN_DOWN(range_end);
/* Ignore complete lowmem entries */
if (end <= max_low)
dev_dbg(link->consumer, "Dropping the link to %s\n",
dev_name(link->supplier));
- if (link->flags & DL_FLAG_PM_RUNTIME)
- pm_runtime_drop_link(link->consumer);
+ pm_runtime_drop_link(link);
list_del_rcu(&link->s_node);
list_del_rcu(&link->c_node);
dev_info(link->consumer, "Dropping the link to %s\n",
dev_name(link->supplier));
- if (link->flags & DL_FLAG_PM_RUNTIME)
- pm_runtime_drop_link(link->consumer);
+ pm_runtime_drop_link(link);
list_del(&link->s_node);
list_del(&link->c_node);
drv = dev->driver;
if (drv) {
+ pm_runtime_get_sync(dev);
+
while (device_links_busy(dev)) {
__device_driver_unlock(dev, parent);
* have released the driver successfully while this one
* was waiting, so check for that.
*/
- if (dev->driver != drv)
+ if (dev->driver != drv) {
+ pm_runtime_put(dev);
return;
+ }
}
- pm_runtime_get_sync(dev);
- pm_runtime_clean_up_links(dev);
-
driver_sysfs_remove(dev);
if (dev->bus)
pm_runtime_reinit(dev);
}
-/**
- * pm_runtime_clean_up_links - Prepare links to consumers for driver removal.
- * @dev: Device whose driver is going to be removed.
- *
- * Check links from this device to any consumers and if any of them have active
- * runtime PM references to the device, drop the usage counter of the device
- * (as many times as needed).
- *
- * Links with the DL_FLAG_MANAGED flag unset are ignored.
- *
- * Since the device is guaranteed to be runtime-active at the point this is
- * called, nothing else needs to be done here.
- *
- * Moreover, this is called after device_links_busy() has returned 'false', so
- * the status of each link is guaranteed to be DL_STATE_SUPPLIER_UNBIND and
- * therefore rpm_active can't be manipulated concurrently.
- */
-void pm_runtime_clean_up_links(struct device *dev)
-{
- struct device_link *link;
- int idx;
-
- idx = device_links_read_lock();
-
- list_for_each_entry_rcu(link, &dev->links.consumers, s_node,
- device_links_read_lock_held()) {
- if (!(link->flags & DL_FLAG_MANAGED))
- continue;
-
- while (refcount_dec_not_one(&link->rpm_active))
- pm_runtime_put_noidle(dev);
- }
-
- device_links_read_unlock(idx);
-}
-
/**
* pm_runtime_get_suppliers - Resume and reference-count supplier devices.
* @dev: Consumer device.
spin_unlock_irq(&dev->power.lock);
}
-void pm_runtime_drop_link(struct device *dev)
+static void pm_runtime_drop_link_count(struct device *dev)
{
spin_lock_irq(&dev->power.lock);
WARN_ON(dev->power.links_count == 0);
spin_unlock_irq(&dev->power.lock);
}
+/**
+ * pm_runtime_drop_link - Prepare for device link removal.
+ * @link: Device link going away.
+ *
+ * Drop the link count of the consumer end of @link and decrement the supplier
+ * device's runtime PM usage counter as many times as needed to drop all of the
+ * PM runtime reference to it from the consumer.
+ */
+void pm_runtime_drop_link(struct device_link *link)
+{
+ if (!(link->flags & DL_FLAG_PM_RUNTIME))
+ return;
+
+ pm_runtime_drop_link_count(link->consumer);
+
+ while (refcount_dec_not_one(&link->rpm_active))
+ pm_runtime_put(link->supplier);
+}
+
static bool pm_runtime_need_not_resume(struct device *dev)
{
return atomic_read(&dev->power.usage_count) <= 1 &&
*
* This file add support for MD5 and SHA1/SHA224/SHA256/SHA384/SHA512.
*
- * You could find the datasheet in Documentation/arm/sunxi/README
+ * You could find the datasheet in Documentation/arm/sunxi.rst
*/
#include <linux/dma-mapping.h>
#include <linux/pm_runtime.h>
*
* This file handle the PRNG
*
- * You could find a link for the datasheet in Documentation/arm/sunxi/README
+ * You could find a link for the datasheet in Documentation/arm/sunxi.rst
*/
#include "sun8i-ce.h"
#include <linux/dma-mapping.h>
*
* This file handle the TRNG
*
- * You could find a link for the datasheet in Documentation/arm/sunxi/README
+ * You could find a link for the datasheet in Documentation/arm/sunxi.rst
*/
#include "sun8i-ce.h"
#include <linux/dma-mapping.h>
return amdgpu_asic_supports_baco(adev);
}
+/*
+ * VRAM access helper functions
+ */
+
/**
- * VRAM access helper functions.
- *
* amdgpu_device_vram_access - read/write a buffer in vram
*
* @adev: amdgpu_device pointer
/**
* amdgpu_invalid_rreg - dummy reg read function
*
- * @adev: amdgpu device pointer
+ * @adev: amdgpu_device pointer
* @reg: offset of register
*
* Dummy register read function. Used for register blocks
/**
* amdgpu_invalid_wreg - dummy reg write function
*
- * @adev: amdgpu device pointer
+ * @adev: amdgpu_device pointer
* @reg: offset of register
* @v: value to write to the register
*
/**
* amdgpu_invalid_rreg64 - dummy 64 bit reg read function
*
- * @adev: amdgpu device pointer
+ * @adev: amdgpu_device pointer
* @reg: offset of register
*
* Dummy register read function. Used for register blocks
/**
* amdgpu_invalid_wreg64 - dummy reg write function
*
- * @adev: amdgpu device pointer
+ * @adev: amdgpu_device pointer
* @reg: offset of register
* @v: value to write to the register
*
/**
* amdgpu_block_invalid_rreg - dummy reg read function
*
- * @adev: amdgpu device pointer
+ * @adev: amdgpu_device pointer
* @block: offset of instance
* @reg: offset of register
*
/**
* amdgpu_block_invalid_wreg - dummy reg write function
*
- * @adev: amdgpu device pointer
+ * @adev: amdgpu_device pointer
* @block: offset of instance
* @reg: offset of register
* @v: value to write to the register
/**
* amdgpu_device_asic_init - Wrapper for atom asic_init
*
- * @dev: drm_device pointer
+ * @adev: amdgpu_device pointer
*
* Does any asic specific work and then calls atom asic init.
*/
/**
* amdgpu_device_vram_scratch_init - allocate the VRAM scratch page
*
- * @adev: amdgpu device pointer
+ * @adev: amdgpu_device pointer
*
* Allocates a scratch page of VRAM for use by various things in the
* driver.
/**
* amdgpu_device_vram_scratch_fini - Free the VRAM scratch page
*
- * @adev: amdgpu device pointer
+ * @adev: amdgpu_device pointer
*
* Frees the VRAM scratch page.
*/
/**
* amdgpu_device_has_dc_support - check if dc is supported
*
- * @adev: amdgpu_device_pointer
+ * @adev: amdgpu_device pointer
*
* Returns true for supported, false for not supported
*/
/**
* amdgpu_device_reset_sriov - reset ASIC for SR-IOV vf
*
- * @adev: amdgpu device pointer
+ * @adev: amdgpu_device pointer
* @from_hypervisor: request from hypervisor
*
* do VF FLR and reinitialize Asic
/**
* amdgpu_device_has_job_running - check if there is any job in mirror list
*
- * @adev: amdgpu device pointer
+ * @adev: amdgpu_device pointer
*
* check if there is any job in mirror list
*/
/**
* amdgpu_device_should_recover_gpu - check if we should try GPU recovery
*
- * @adev: amdgpu device pointer
+ * @adev: amdgpu_device pointer
*
* Check amdgpu_gpu_recovery and SRIOV status to see if we should try to recover
* a hung GPU.
/**
* amdgpu_device_gpu_recover - reset the asic and recover scheduler
*
- * @adev: amdgpu device pointer
+ * @adev: amdgpu_device pointer
* @job: which job trigger hang
*
* Attempt to reset the GPU if it has hung (all asics).
bool need_emergency_restart = false;
bool audio_suspended = false;
- /**
+ /*
* Special case: RAS triggered and full reset isn't supported
*/
need_emergency_restart = amdgpu_ras_need_emergency_restart(adev);
/**
* amdgpu_gtt_mgr_init - init GTT manager and DRM MM
*
- * @man: TTM memory type manager
- * @p_size: maximum size of GTT
+ * @adev: amdgpu_device pointer
+ * @gtt_size: maximum size of GTT
*
* Allocate and initialize the GTT manager.
*/
/**
* amdgpu_gtt_mgr_fini - free and destroy GTT manager
*
- * @man: TTM memory type manager
+ * @adev: amdgpu_device pointer
*
* Destroy and free the GTT manager, returns -EBUSY if ranges are still
* allocated inside it.
/**
* amdgpu_vram_mgr_init - init VRAM manager and DRM MM
*
- * @man: TTM memory type manager
- * @p_size: maximum size of VRAM
+ * @adev: amdgpu_device pointer
*
* Allocate and initialize the VRAM manager.
*/
/**
* amdgpu_vram_mgr_fini - free and destroy VRAM manager
*
- * @man: TTM memory type manager
+ * @adev: amdgpu_device pointer
*
* Destroy and free the VRAM manager, returns -EBUSY if ranges are still
* allocated inside it.
/**
* amdgpu_vram_mgr_vis_size - Calculate visible node size
*
- * @adev: amdgpu device structure
+ * @adev: amdgpu_device pointer
* @node: MM node structure
*
* Calculate how many bytes of the MM node are inside visible VRAM
{
struct drm_device *dev = connector->dev;
struct amdgpu_device *adev = drm_to_adev(dev);
- struct dm_comressor_info *compressor = &adev->dm.compressor;
+ struct dm_compressor_info *compressor = &adev->dm.compressor;
struct amdgpu_dm_connector *aconn = to_amdgpu_dm_connector(connector);
struct drm_display_mode *mode;
unsigned long max_size = 0;
* @bo_ptr: Pointer to the buffer object
* @gpu_addr: MMIO gpu addr
*/
-struct dm_comressor_info {
+struct dm_compressor_info {
void *cpu_addr;
struct amdgpu_bo *bo_ptr;
uint64_t gpu_addr;
* @soc_bounding_box: SOC bounding box values provided by gpu_info FW
* @cached_state: Caches device atomic state for suspend/resume
* @cached_dc_state: Cached state of content streams
- * @compressor: Frame buffer compression buffer. See &struct dm_comressor_info
+ * @compressor: Frame buffer compression buffer. See &struct dm_compressor_info
* @force_timing_sync: set via debugfs. When set, indicates that all connected
* displays will be forced to synchronize.
*/
struct drm_atomic_state *cached_state;
struct dc_state *cached_dc_state;
- struct dm_comressor_info compressor;
+ struct dm_compressor_info compressor;
const struct firmware *fw_dmcu;
uint32_t dmcu_fw_version;
/* Refuse to balloon below the floor. */
if (avail_pages < num_pages || avail_pages - num_pages < floor) {
- pr_warn("Balloon request will be partially fulfilled. %s\n",
+ pr_info("Balloon request will be partially fulfilled. %s\n",
avail_pages < num_pages ? "Not enough memory." :
"Balloon floor reached.");
u8 subnet_timeout;
u8 init_type_reply;
u8 active_width;
- u16 active_speed;
+ u8 active_speed;
u8 phys_state;
u8 reserved[2];
};
int rvt_register_device(struct rvt_dev_info *rdi)
{
int ret = 0, i;
+ u64 dma_mask;
if (!rdi)
return -EINVAL;
/* DMA Operations */
rdi->ibdev.dev.dma_parms = rdi->ibdev.dev.parent->dma_parms;
- dma_set_coherent_mask(&rdi->ibdev.dev,
- rdi->ibdev.dev.parent->coherent_dma_mask);
+ dma_mask = IS_ENABLED(CONFIG_64BIT) ? DMA_BIT_MASK(64) : DMA_BIT_MASK(32);
+ ret = dma_coerce_mask_and_coherent(&rdi->ibdev.dev, dma_mask);
+ if (ret)
+ goto bail_wss;
/* Protection Domain */
spin_lock_init(&rdi->n_pds_lock);
int err;
struct ib_device *dev = &rxe->ib_dev;
struct crypto_shash *tfm;
+ u64 dma_mask;
strlcpy(dev->node_desc, "rxe", sizeof(dev->node_desc));
rxe->ndev->dev_addr);
dev->dev.dma_parms = &rxe->dma_parms;
dma_set_max_seg_size(&dev->dev, UINT_MAX);
- dma_set_coherent_mask(&dev->dev, dma_get_required_mask(&dev->dev));
+ dma_mask = IS_ENABLED(CONFIG_64BIT) ? DMA_BIT_MASK(64) : DMA_BIT_MASK(32);
+ err = dma_coerce_mask_and_coherent(&dev->dev, dma_mask);
+ if (err)
+ return err;
dev->uverbs_cmd_mask = BIT_ULL(IB_USER_VERBS_CMD_GET_CONTEXT)
| BIT_ULL(IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL)
struct siw_device *sdev = NULL;
struct ib_device *base_dev;
struct device *parent = netdev->dev.parent;
+ u64 dma_mask;
int rv;
if (!parent) {
base_dev->dev.parent = parent;
base_dev->dev.dma_parms = &sdev->dma_parms;
dma_set_max_seg_size(&base_dev->dev, UINT_MAX);
- dma_set_coherent_mask(&base_dev->dev,
- dma_get_required_mask(&base_dev->dev));
+ dma_mask = IS_ENABLED(CONFIG_64BIT) ? DMA_BIT_MASK(64) : DMA_BIT_MASK(32);
+ if (dma_coerce_mask_and_coherent(&base_dev->dev, dma_mask))
+ goto error;
+
base_dev->num_comp_vectors = num_possible_cpus();
xa_init_flags(&sdev->qp_xa, XA_FLAGS_ALLOC1);
/**
* srpt_unregister_mad_agent - unregister MAD callback functions
* @sdev: SRPT HCA pointer.
+ * @port_cnt: number of ports with registered MAD
*
* Note: It is safe to call this function more than once for the same device.
*/
-static void srpt_unregister_mad_agent(struct srpt_device *sdev)
+static void srpt_unregister_mad_agent(struct srpt_device *sdev, int port_cnt)
{
struct ib_port_modify port_modify = {
.clr_port_cap_mask = IB_PORT_DEVICE_MGMT_SUP,
struct srpt_port *sport;
int i;
- for (i = 1; i <= sdev->device->phys_port_cnt; i++) {
+ for (i = 1; i <= port_cnt; i++) {
sport = &sdev->port[i - 1];
WARN_ON(sport->port != i);
if (sport->mad_agent) {
if (ret) {
pr_err("MAD registration failed for %s-%d.\n",
dev_name(&sdev->device->dev), i);
- goto err_event;
+ i--;
+ goto err_port;
}
}
pr_debug("added %s.\n", dev_name(&device->dev));
return 0;
-err_event:
+err_port:
+ srpt_unregister_mad_agent(sdev, i);
ib_unregister_event_handler(&sdev->event_handler);
err_cm:
if (sdev->cm_id)
struct srpt_device *sdev = client_data;
int i;
- srpt_unregister_mad_agent(sdev);
+ srpt_unregister_mad_agent(sdev, sdev->device->phys_port_cnt);
ib_unregister_event_handler(&sdev->event_handler);
* @rdma_cm: See below.
* @rdma_cm.cm_id: RDMA CM ID associated with the channel.
* @cq: IB completion queue for this channel.
+ * @cq_size: Number of CQEs in @cq.
* @zw_cqe: Zero-length write CQE.
* @rcu: RCU head.
* @kref: kref for this channel.
*/
struct sk_buff *skb = priv->echo_skb[idx];
struct canfd_frame *cf = (struct canfd_frame *)skb->data;
- u8 len = cf->len;
- *len_ptr = len;
+ /* get the real payload length for netdev statistics */
+ if (cf->can_id & CAN_RTR_FLAG)
+ *len_ptr = 0;
+ else
+ *len_ptr = cf->len;
+
priv->echo_skb[idx] = NULL;
return skb;
if (!skb)
return 0;
- netif_rx(skb);
+ skb_get(skb);
+ if (netif_rx(skb) == NET_RX_SUCCESS)
+ dev_consume_skb_any(skb);
+ else
+ dev_kfree_skb_any(skb);
return len;
}
* MX8MP FlexCAN3 03.00.17.01 yes yes no yes yes yes
* VF610 FlexCAN3 ? no yes no yes yes? no
* LS1021A FlexCAN2 03.00.04.00 no yes no no yes no
- * LX2160A FlexCAN3 03.00.23.00 no yes no no yes yes
+ * LX2160A FlexCAN3 03.00.23.00 no yes no yes yes yes
*
* Some SOCs do not have the RX_WARN & TX_WARN interrupt line connected.
*/
static const struct flexcan_devtype_data fsl_vf610_devtype_data = {
.quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
FLEXCAN_QUIRK_DISABLE_MECR | FLEXCAN_QUIRK_USE_OFF_TIMESTAMP |
- FLEXCAN_QUIRK_BROKEN_PERR_STATE,
+ FLEXCAN_QUIRK_BROKEN_PERR_STATE | FLEXCAN_QUIRK_SUPPORT_ECC,
};
static const struct flexcan_devtype_data fsl_ls1021a_r2_devtype_data = {
.quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
- FLEXCAN_QUIRK_DISABLE_MECR | FLEXCAN_QUIRK_BROKEN_PERR_STATE |
- FLEXCAN_QUIRK_USE_OFF_TIMESTAMP,
+ FLEXCAN_QUIRK_BROKEN_PERR_STATE | FLEXCAN_QUIRK_USE_OFF_TIMESTAMP,
};
static const struct flexcan_devtype_data fsl_lx2160a_r1_devtype_data = {
.quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
FLEXCAN_QUIRK_DISABLE_MECR | FLEXCAN_QUIRK_BROKEN_PERR_STATE |
- FLEXCAN_QUIRK_USE_OFF_TIMESTAMP | FLEXCAN_QUIRK_SUPPORT_FD,
+ FLEXCAN_QUIRK_USE_OFF_TIMESTAMP | FLEXCAN_QUIRK_SUPPORT_FD |
+ FLEXCAN_QUIRK_SUPPORT_ECC,
};
static const struct can_bittiming_const flexcan_bittiming_const = {
{
struct net_device *dev = platform_get_drvdata(pdev);
+ device_set_wakeup_enable(&pdev->dev, false);
+ device_set_wakeup_capable(&pdev->dev, false);
unregister_flexcandev(dev);
pm_runtime_disable(&pdev->dev);
free_candev(dev);
cf_len = get_can_dlc(pucan_msg_get_dlc(msg));
/* if this frame is an echo, */
- if ((rx_msg_flags & PUCAN_MSG_LOOPED_BACK) &&
- !(rx_msg_flags & PUCAN_MSG_SELF_RECEIVE)) {
+ if (rx_msg_flags & PUCAN_MSG_LOOPED_BACK) {
unsigned long flags;
spin_lock_irqsave(&priv->echo_lock, flags);
netif_wake_queue(priv->ndev);
spin_unlock_irqrestore(&priv->echo_lock, flags);
- return 0;
+
+ /* if this frame is only an echo, stop here. Otherwise,
+ * continue to push this application self-received frame into
+ * its own rx queue.
+ */
+ if (!(rx_msg_flags & PUCAN_MSG_SELF_RECEIVE))
+ return 0;
}
/* otherwise, it should be pushed into rx fifo */
if (skb_queue_len(&offload->skb_queue) >
offload->skb_queue_len_max) {
- kfree_skb(skb);
+ dev_kfree_skb_any(skb);
return -ENOBUFS;
}
{
if (skb_queue_len(&offload->skb_queue) >
offload->skb_queue_len_max) {
- kfree_skb(skb);
+ dev_kfree_skb_any(skb);
return -ENOBUFS;
}
{
switch (model) {
case MCP251XFD_MODEL_MCP2517FD:
- return "MCP2517FD"; break;
+ return "MCP2517FD";
case MCP251XFD_MODEL_MCP2518FD:
- return "MCP2518FD"; break;
+ return "MCP2518FD";
case MCP251XFD_MODEL_MCP251XFD:
- return "MCP251xFD"; break;
+ return "MCP251xFD";
}
return "<unknown>";
{
switch (mode) {
case MCP251XFD_REG_CON_MODE_MIXED:
- return "Mixed (CAN FD/CAN 2.0)"; break;
+ return "Mixed (CAN FD/CAN 2.0)";
case MCP251XFD_REG_CON_MODE_SLEEP:
- return "Sleep"; break;
+ return "Sleep";
case MCP251XFD_REG_CON_MODE_INT_LOOPBACK:
- return "Internal Loopback"; break;
+ return "Internal Loopback";
case MCP251XFD_REG_CON_MODE_LISTENONLY:
- return "Listen Only"; break;
+ return "Listen Only";
case MCP251XFD_REG_CON_MODE_CONFIG:
- return "Configuration"; break;
+ return "Configuration";
case MCP251XFD_REG_CON_MODE_EXT_LOOPBACK:
- return "External Loopback"; break;
+ return "External Loopback";
case MCP251XFD_REG_CON_MODE_CAN2_0:
- return "CAN 2.0"; break;
+ return "CAN 2.0";
case MCP251XFD_REG_CON_MODE_RESTRICTED:
- return "Restricted Operation"; break;
+ return "Restricted Operation";
}
return "<unknown>";
memcpy(&buf_tx->cmd, reg, sizeof(buf_tx->cmd));
if (MCP251XFD_SANITIZE_SPI)
memset(buf_tx->data, 0x0, val_len);
- };
+ }
err = spi_sync(spi, &msg);
if (err)
goto out;
}
- netdev_dbg(priv->ndev,
- "CRC read error at address 0x%04x (length=%zd, data=%*ph, CRC=0x%04x) retrying.\n",
- reg, val_len, (int)val_len, buf_rx->data,
- get_unaligned_be16(buf_rx->data + val_len));
- }
-
- if (err) {
netdev_info(priv->ndev,
- "CRC read error at address 0x%04x (length=%zd, data=%*ph, CRC=0x%04x).\n",
+ "CRC read error at address 0x%04x (length=%zd, data=%*ph, CRC=0x%04x) retrying.\n",
reg, val_len, (int)val_len, buf_rx->data,
get_unaligned_be16(buf_rx->data + val_len));
+ }
+
+ if (err) {
+ netdev_err(priv->ndev,
+ "CRC read error at address 0x%04x (length=%zd, data=%*ph, CRC=0x%04x).\n",
+ reg, val_len, (int)val_len, buf_rx->data,
+ get_unaligned_be16(buf_rx->data + val_len));
return err;
}
err = clk_prepare_enable(priv->clk);
if (err) {
dev_err(&pdev->dev, "clk_prepare_enable() failed\n");
- goto probe_exit_clk;
+ goto probe_exit_release_clk;
}
priv->offload.mailbox_read = ti_hecc_mailbox_read;
err = can_rx_offload_add_timestamp(ndev, &priv->offload);
if (err) {
dev_err(&pdev->dev, "can_rx_offload_add_timestamp() failed\n");
- goto probe_exit_clk;
+ goto probe_exit_disable_clk;
}
err = register_candev(ndev);
probe_exit_offload:
can_rx_offload_del(&priv->offload);
-probe_exit_clk:
+probe_exit_disable_clk:
+ clk_disable_unprepare(priv->clk);
+probe_exit_release_clk:
clk_put(priv->clk);
probe_exit_candev:
free_candev(ndev);
/* protect from getting time before setting now */
if (ktime_to_ns(time_ref->tv_host)) {
u64 delta_us;
+ s64 delta_ts = 0;
+
+ /* General case: dev_ts_1 < dev_ts_2 < ts, with:
+ *
+ * - dev_ts_1 = previous sync timestamp
+ * - dev_ts_2 = last sync timestamp
+ * - ts = event timestamp
+ * - ts_period = known sync period (theoretical)
+ * ~ dev_ts2 - dev_ts1
+ * *but*:
+ *
+ * - time counters wrap (see adapter->ts_used_bits)
+ * - sometimes, dev_ts_1 < ts < dev_ts2
+ *
+ * "normal" case (sync time counters increase):
+ * must take into account case when ts wraps (tsw)
+ *
+ * < ts_period > < >
+ * | | |
+ * ---+--------+----+-------0-+--+-->
+ * ts_dev_1 | ts_dev_2 |
+ * ts tsw
+ */
+ if (time_ref->ts_dev_1 < time_ref->ts_dev_2) {
+ /* case when event time (tsw) wraps */
+ if (ts < time_ref->ts_dev_1)
+ delta_ts = 1 << time_ref->adapter->ts_used_bits;
+
+ /* Otherwise, sync time counter (ts_dev_2) has wrapped:
+ * handle case when event time (tsn) hasn't.
+ *
+ * < ts_period > < >
+ * | | |
+ * ---+--------+--0-+---------+--+-->
+ * ts_dev_1 | ts_dev_2 |
+ * tsn ts
+ */
+ } else if (time_ref->ts_dev_1 < ts) {
+ delta_ts = -(1 << time_ref->adapter->ts_used_bits);
+ }
- delta_us = ts - time_ref->ts_dev_2;
- if (ts < time_ref->ts_dev_2)
- delta_us &= (1 << time_ref->adapter->ts_used_bits) - 1;
+ /* add delay between last sync and event timestamps */
+ delta_ts += (signed int)(ts - time_ref->ts_dev_2);
- delta_us += time_ref->ts_total;
+ /* add time from beginning to last sync */
+ delta_ts += time_ref->ts_total;
- delta_us *= time_ref->adapter->us_per_ts_scale;
+ /* convert ticks number into microseconds */
+ delta_us = delta_ts * time_ref->adapter->us_per_ts_scale;
delta_us >>= time_ref->adapter->us_per_ts_shift;
*time = ktime_add_us(time_ref->tv_host_0, delta_us);
struct pucan_msg *rx_msg)
{
struct pucan_rx_msg *rm = (struct pucan_rx_msg *)rx_msg;
- struct peak_usb_device *dev = usb_if->dev[pucan_msg_get_channel(rm)];
- struct net_device *netdev = dev->netdev;
+ struct peak_usb_device *dev;
+ struct net_device *netdev;
struct canfd_frame *cfd;
struct sk_buff *skb;
const u16 rx_msg_flags = le16_to_cpu(rm->flags);
+ if (pucan_msg_get_channel(rm) >= ARRAY_SIZE(usb_if->dev))
+ return -ENOMEM;
+
+ dev = usb_if->dev[pucan_msg_get_channel(rm)];
+ netdev = dev->netdev;
+
if (rx_msg_flags & PUCAN_MSG_EXT_DATA_LEN) {
/* CANFD frame case */
skb = alloc_canfd_skb(netdev, &cfd);
struct pucan_msg *rx_msg)
{
struct pucan_status_msg *sm = (struct pucan_status_msg *)rx_msg;
- struct peak_usb_device *dev = usb_if->dev[pucan_stmsg_get_channel(sm)];
- struct pcan_usb_fd_device *pdev =
- container_of(dev, struct pcan_usb_fd_device, dev);
+ struct pcan_usb_fd_device *pdev;
enum can_state new_state = CAN_STATE_ERROR_ACTIVE;
enum can_state rx_state, tx_state;
- struct net_device *netdev = dev->netdev;
+ struct peak_usb_device *dev;
+ struct net_device *netdev;
struct can_frame *cf;
struct sk_buff *skb;
+ if (pucan_stmsg_get_channel(sm) >= ARRAY_SIZE(usb_if->dev))
+ return -ENOMEM;
+
+ dev = usb_if->dev[pucan_stmsg_get_channel(sm)];
+ pdev = container_of(dev, struct pcan_usb_fd_device, dev);
+ netdev = dev->netdev;
+
/* nothing should be sent while in BUS_OFF state */
if (dev->can.state == CAN_STATE_BUS_OFF)
return 0;
struct pucan_msg *rx_msg)
{
struct pucan_error_msg *er = (struct pucan_error_msg *)rx_msg;
- struct peak_usb_device *dev = usb_if->dev[pucan_ermsg_get_channel(er)];
- struct pcan_usb_fd_device *pdev =
- container_of(dev, struct pcan_usb_fd_device, dev);
+ struct pcan_usb_fd_device *pdev;
+ struct peak_usb_device *dev;
+
+ if (pucan_ermsg_get_channel(er) >= ARRAY_SIZE(usb_if->dev))
+ return -EINVAL;
+
+ dev = usb_if->dev[pucan_ermsg_get_channel(er)];
+ pdev = container_of(dev, struct pcan_usb_fd_device, dev);
/* keep a trace of tx and rx error counters for later use */
pdev->bec.txerr = er->tx_err_cnt;
struct pucan_msg *rx_msg)
{
struct pcan_ufd_ovr_msg *ov = (struct pcan_ufd_ovr_msg *)rx_msg;
- struct peak_usb_device *dev = usb_if->dev[pufd_omsg_get_channel(ov)];
- struct net_device *netdev = dev->netdev;
+ struct peak_usb_device *dev;
+ struct net_device *netdev;
struct can_frame *cf;
struct sk_buff *skb;
+ if (pufd_omsg_get_channel(ov) >= ARRAY_SIZE(usb_if->dev))
+ return -EINVAL;
+
+ dev = usb_if->dev[pufd_omsg_get_channel(ov)];
+ netdev = dev->netdev;
+
/* allocate an skb to store the error frame */
skb = alloc_can_err_skb(netdev, &cf);
if (!skb)
u16 tx_msg_size, tx_msg_flags;
u8 can_dlc;
+ if (cfd->len > CANFD_MAX_DLEN)
+ return -EINVAL;
+
tx_msg_size = ALIGN(sizeof(struct pucan_tx_msg) + cfd->len, 4);
tx_msg->size = cpu_to_le16(tx_msg_size);
tx_msg->type = cpu_to_le16(PUCAN_MSG_CAN_TX);
if (ret < 0) {
netdev_err(ndev, "%s: pm_runtime_get failed(%d)\n",
__func__, ret);
- return ret;
+ goto err;
}
ret = request_irq(ndev->irq, xcan_interrupt, priv->irq_flags,
if (ret < 0) {
netdev_err(ndev, "%s: pm_runtime_get failed(%d)\n",
__func__, ret);
+ pm_runtime_put(priv->dev);
return ret;
}
if (ret < 0) {
netdev_err(ndev, "%s: pm_runtime_get failed(%d)\n",
__func__, ret);
- goto err_pmdisable;
+ goto err_disableclks;
}
if (priv->read_reg(priv, XCAN_SR_OFFSET) != XCAN_SR_CONFIG_MASK) {
err_disableclks:
pm_runtime_put(priv->dev);
-err_pmdisable:
pm_runtime_disable(&pdev->dev);
err_free:
free_candev(ndev);
priv->port_mtu[port] = new_mtu;
for (i = 0; i < QCA8K_NUM_PORTS; i++)
- if (priv->port_mtu[port] > mtu)
- mtu = priv->port_mtu[port];
+ if (priv->port_mtu[i] > mtu)
+ mtu = priv->port_mtu[i];
/* Include L2 header / FCS length */
qca8k_write(priv, QCA8K_MAX_FRAME_SIZE, mtu + ETH_HLEN + ETH_FCS_LEN);
static int macb_pad_and_fcs(struct sk_buff **skb, struct net_device *ndev)
{
- bool cloned = skb_cloned(*skb) || skb_header_cloned(*skb);
+ bool cloned = skb_cloned(*skb) || skb_header_cloned(*skb) ||
+ skb_is_nonlinear(*skb);
int padlen = ETH_ZLEN - (*skb)->len;
int headroom = skb_headroom(*skb);
int tailroom = skb_tailroom(*skb);
{
if (likely(skb && !skb_shared(skb) && !skb_cloned(skb))) {
__skb_trim(skb, 0);
- refcount_add(2, &skb->users);
+ refcount_inc(&skb->users);
} else {
skb = alloc_skb(len, GFP_KERNEL | __GFP_NOFAIL);
}
if (ret)
goto out_notcb;
+ if (unlikely(csk_flag(sk, CSK_ABORT_SHUTDOWN)))
+ goto out_notcb;
+
set_wr_txq(skb, CPL_PRIORITY_DATA, csk->tlshws.txqid);
csk->wr_credits -= DIV_ROUND_UP(len, 16);
csk->wr_unacked += DIV_ROUND_UP(len, 16);
#define DPAA_PARSE_RESULTS_SIZE sizeof(struct fman_prs_result)
#define DPAA_TIME_STAMP_SIZE 8
#define DPAA_HASH_RESULTS_SIZE 8
+#define DPAA_HWA_SIZE (DPAA_PARSE_RESULTS_SIZE + DPAA_TIME_STAMP_SIZE \
+ + DPAA_HASH_RESULTS_SIZE)
+#define DPAA_RX_PRIV_DATA_DEFAULT_SIZE (DPAA_TX_PRIV_DATA_SIZE + \
+ dpaa_rx_extra_headroom)
#ifdef CONFIG_DPAA_ERRATUM_A050385
-#define DPAA_RX_PRIV_DATA_SIZE (DPAA_A050385_ALIGN - (DPAA_PARSE_RESULTS_SIZE\
- + DPAA_TIME_STAMP_SIZE + DPAA_HASH_RESULTS_SIZE))
+#define DPAA_RX_PRIV_DATA_A050385_SIZE (DPAA_A050385_ALIGN - DPAA_HWA_SIZE)
+#define DPAA_RX_PRIV_DATA_SIZE (fman_has_errata_a050385() ? \
+ DPAA_RX_PRIV_DATA_A050385_SIZE : \
+ DPAA_RX_PRIV_DATA_DEFAULT_SIZE)
#else
-#define DPAA_RX_PRIV_DATA_SIZE (u16)(DPAA_TX_PRIV_DATA_SIZE + \
- dpaa_rx_extra_headroom)
+#define DPAA_RX_PRIV_DATA_SIZE DPAA_RX_PRIV_DATA_DEFAULT_SIZE
#endif
#define DPAA_ETH_PCD_RXQ_NUM 128
return err;
}
-static inline u16 dpaa_get_headroom(struct dpaa_buffer_layout *bl)
+static u16 dpaa_get_headroom(struct dpaa_buffer_layout *bl,
+ enum port_type port)
{
u16 headroom;
*
* Also make sure the headroom is a multiple of data_align bytes
*/
- headroom = (u16)(bl->priv_data_size + DPAA_PARSE_RESULTS_SIZE +
- DPAA_TIME_STAMP_SIZE + DPAA_HASH_RESULTS_SIZE);
+ headroom = (u16)(bl[port].priv_data_size + DPAA_HWA_SIZE);
- return ALIGN(headroom, DPAA_FD_DATA_ALIGNMENT);
+ if (port == RX)
+ return ALIGN(headroom, DPAA_FD_RX_DATA_ALIGNMENT);
+ else
+ return ALIGN(headroom, DPAA_FD_DATA_ALIGNMENT);
}
static int dpaa_eth_probe(struct platform_device *pdev)
goto free_dpaa_fqs;
}
- priv->tx_headroom = dpaa_get_headroom(&priv->buf_layout[TX]);
- priv->rx_headroom = dpaa_get_headroom(&priv->buf_layout[RX]);
+ priv->tx_headroom = dpaa_get_headroom(priv->buf_layout, TX);
+ priv->rx_headroom = dpaa_get_headroom(priv->buf_layout, RX);
/* All real interfaces need their ports initialized */
err = dpaa_eth_init_ports(mac_dev, dpaa_bp, &port_fqs,
*/
#define FEC_QUIRK_HAS_FRREG (1 << 16)
+/* Some FEC hardware blocks need the MMFR cleared at setup time to avoid
+ * the generation of an MII event. This must be avoided in the older
+ * FEC blocks where it will stop MII events being generated.
+ */
+#define FEC_QUIRK_CLEAR_SETUP_MII (1 << 17)
+
struct bufdesc_prop {
int qid;
/* Address of Rx and Tx buffers */
static const struct fec_devinfo fec_imx28_info = {
.quirks = FEC_QUIRK_ENET_MAC | FEC_QUIRK_SWAP_FRAME |
FEC_QUIRK_SINGLE_MDIO | FEC_QUIRK_HAS_RACC |
- FEC_QUIRK_HAS_FRREG,
+ FEC_QUIRK_HAS_FRREG | FEC_QUIRK_CLEAR_SETUP_MII,
};
static const struct fec_devinfo fec_imx6q_info = {
.quirks = FEC_QUIRK_ENET_MAC | FEC_QUIRK_HAS_GBIT |
FEC_QUIRK_HAS_BUFDESC_EX | FEC_QUIRK_HAS_CSUM |
FEC_QUIRK_HAS_VLAN | FEC_QUIRK_ERR006358 |
- FEC_QUIRK_HAS_RACC,
+ FEC_QUIRK_HAS_RACC | FEC_QUIRK_CLEAR_SETUP_MII,
};
static const struct fec_devinfo fec_mvf600_info = {
FEC_QUIRK_HAS_BUFDESC_EX | FEC_QUIRK_HAS_CSUM |
FEC_QUIRK_HAS_VLAN | FEC_QUIRK_HAS_AVB |
FEC_QUIRK_ERR007885 | FEC_QUIRK_BUG_CAPTURE |
- FEC_QUIRK_HAS_RACC | FEC_QUIRK_HAS_COALESCE,
+ FEC_QUIRK_HAS_RACC | FEC_QUIRK_HAS_COALESCE |
+ FEC_QUIRK_CLEAR_SETUP_MII,
};
static const struct fec_devinfo fec_imx6ul_info = {
FEC_QUIRK_HAS_BUFDESC_EX | FEC_QUIRK_HAS_CSUM |
FEC_QUIRK_HAS_VLAN | FEC_QUIRK_ERR007885 |
FEC_QUIRK_BUG_CAPTURE | FEC_QUIRK_HAS_RACC |
- FEC_QUIRK_HAS_COALESCE,
+ FEC_QUIRK_HAS_COALESCE | FEC_QUIRK_CLEAR_SETUP_MII,
};
static struct platform_device_id fec_devtype[] = {
if (suppress_preamble)
fep->phy_speed |= BIT(7);
- /* Clear MMFR to avoid to generate MII event by writing MSCR.
- * MII event generation condition:
- * - writing MSCR:
- * - mmfr[31:0]_not_zero & mscr[7:0]_is_zero &
- * mscr_reg_data_in[7:0] != 0
- * - writing MMFR:
- * - mscr[7:0]_not_zero
- */
- writel(0, fep->hwp + FEC_MII_DATA);
+ if (fep->quirks & FEC_QUIRK_CLEAR_SETUP_MII) {
+ /* Clear MMFR to avoid to generate MII event by writing MSCR.
+ * MII event generation condition:
+ * - writing MSCR:
+ * - mmfr[31:0]_not_zero & mscr[7:0]_is_zero &
+ * mscr_reg_data_in[7:0] != 0
+ * - writing MMFR:
+ * - mscr[7:0]_not_zero
+ */
+ writel(0, fep->hwp + FEC_MII_DATA);
+ }
writel(fep->phy_speed, fep->hwp + FEC_MII_SPEED);
fcb_len = GMAC_FCB_LEN + GMAC_TXPAL_LEN;
/* make space for additional header when fcb is needed */
- if (fcb_len && unlikely(skb_headroom(skb) < fcb_len)) {
- struct sk_buff *skb_new;
-
- skb_new = skb_realloc_headroom(skb, fcb_len);
- if (!skb_new) {
+ if (fcb_len) {
+ if (unlikely(skb_cow_head(skb, fcb_len))) {
dev->stats.tx_errors++;
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
-
- if (skb->sk)
- skb_set_owner_w(skb_new, skb->sk);
- dev_consume_skb_any(skb);
- skb = skb_new;
}
/* total number of fragments in the SKB */
if (dev->features & NETIF_F_IP_CSUM ||
priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)
- dev->needed_headroom = GMAC_FCB_LEN;
+ dev->needed_headroom = GMAC_FCB_LEN + GMAC_TXPAL_LEN;
/* Initializing some of the rx/tx queue level parameters */
for (i = 0; i < priv->num_tx_queues; i++) {
if (adapter->state != VNIC_CLOSED) {
rc = ibmvnic_login(netdev);
if (rc)
- return rc;
+ goto out;
rc = init_resources(adapter);
if (rc) {
netdev_err(netdev, "failed to initialize resources\n");
release_resources(adapter);
- return rc;
+ goto out;
}
}
rc = __ibmvnic_open(netdev);
+out:
+ /*
+ * If open fails due to a pending failover, set device state and
+ * return. Device operation will be handled by reset routine.
+ */
+ if (rc && adapter->failover_pending) {
+ adapter->state = VNIC_OPEN;
+ rc = 0;
+ }
return rc;
}
rwi->reset_reason);
rtnl_lock();
+ /*
+ * Now that we have the rtnl lock, clear any pending failover.
+ * This will ensure ibmvnic_open() has either completed or will
+ * block until failover is complete.
+ */
+ if (rwi->reset_reason == VNIC_RESET_FAILOVER)
+ adapter->failover_pending = false;
netif_carrier_off(netdev);
adapter->reset_reason = rwi->reset_reason;
/* CHANGE_PARAM requestor holds rtnl_lock */
rc = do_change_param_reset(adapter, rwi, reset_state);
} else if (adapter->force_reset_recovery) {
+ /*
+ * Since we are doing a hard reset now, clear the
+ * failover_pending flag so we don't ignore any
+ * future MOBILITY or other resets.
+ */
+ adapter->failover_pending = false;
+
/* Transport event occurred during previous reset */
if (adapter->wait_for_reset) {
/* Previous was CHANGE_PARAM; caller locked */
unsigned long flags;
int ret;
+ /*
+ * If failover is pending don't schedule any other reset.
+ * Instead let the failover complete. If there is already a
+ * a failover reset scheduled, we will detect and drop the
+ * duplicate reset when walking the ->rwi_list below.
+ */
if (adapter->state == VNIC_REMOVING ||
adapter->state == VNIC_REMOVED ||
- adapter->failover_pending) {
+ (adapter->failover_pending && reason != VNIC_RESET_FAILOVER)) {
ret = EBUSY;
netdev_dbg(netdev, "Adapter removing or pending failover, skipping reset\n");
goto err;
case IBMVNIC_CRQ_INIT:
dev_info(dev, "Partner initialized\n");
adapter->from_passive_init = true;
- adapter->failover_pending = false;
if (!completion_done(&adapter->init_done)) {
complete(&adapter->init_done);
adapter->init_done_rc = -EIO;
ethtool_link_ksettings_zero_link_mode(ks, supported);
+ if (!idev->port_info) {
+ netdev_err(netdev, "port_info not initialized\n");
+ return -EOPNOTSUPP;
+ }
+
/* The port_info data is found in a DMA space that the NIC keeps
* up-to-date, so there's no need to request the data from the
* NIC, we already have it in our memory space.
return -EIO;
}
-static bool rtl_test_hw_pad_bug(struct rtl8169_private *tp, struct sk_buff *skb)
+static bool rtl_test_hw_pad_bug(struct rtl8169_private *tp)
{
- return skb->len < ETH_ZLEN && tp->mac_version == RTL_GIGA_MAC_VER_34;
+ switch (tp->mac_version) {
+ case RTL_GIGA_MAC_VER_34:
+ case RTL_GIGA_MAC_VER_60:
+ case RTL_GIGA_MAC_VER_61:
+ case RTL_GIGA_MAC_VER_63:
+ return true;
+ default:
+ return false;
+ }
}
static void rtl8169_tso_csum_v1(struct sk_buff *skb, u32 *opts)
opts[1] |= transport_offset << TCPHO_SHIFT;
} else {
- if (unlikely(rtl_test_hw_pad_bug(tp, skb)))
+ if (unlikely(skb->len < ETH_ZLEN && rtl_test_hw_pad_bug(tp)))
return !eth_skb_pad(skb);
}
if (ret)
return ret;
- if (plat->eee_usecs_rate > 0) {
- u32 tx_lpi_usec;
-
- tx_lpi_usec = (plat->eee_usecs_rate / 1000000) - 1;
- writel(tx_lpi_usec, res.addr + GMAC_1US_TIC_COUNTER);
- }
-
ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);
if (ret < 0)
return ret;
res.wol_irq = pci_irq_vector(pdev, 0);
res.irq = pci_irq_vector(pdev, 0);
+ if (plat->eee_usecs_rate > 0) {
+ u32 tx_lpi_usec;
+
+ tx_lpi_usec = (plat->eee_usecs_rate / 1000000) - 1;
+ writel(tx_lpi_usec, res.addr + GMAC_1US_TIC_COUNTER);
+ }
+
ret = stmmac_dvr_probe(&pdev->dev, plat, &res);
if (ret) {
pci_free_irq_vectors(pdev);
ch->priv_data = priv;
ch->index = queue;
+ spin_lock_init(&ch->lock);
if (queue < priv->plat->rx_queues_to_use) {
netif_napi_add(dev, &ch->rx_napi, stmmac_napi_poll_rx,
(1 << HWTSTAMP_TX_ON);
info->rx_filters =
(1 << HWTSTAMP_FILTER_NONE) |
- (1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
(1 << HWTSTAMP_FILTER_PTP_V2_EVENT);
return 0;
}
break;
case HWTSTAMP_FILTER_ALL:
case HWTSTAMP_FILTER_NTP_ALL:
- return -ERANGE;
case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
- priv->rx_ts_enabled = HWTSTAMP_FILTER_PTP_V1_L4_EVENT;
- cfg.rx_filter = HWTSTAMP_FILTER_PTP_V1_L4_EVENT;
- break;
+ return -ERANGE;
case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
continue;
sfp->gpio_irq[i] = gpiod_to_irq(sfp->gpio[i]);
- if (!sfp->gpio_irq[i]) {
+ if (sfp->gpio_irq[i] < 0) {
+ sfp->gpio_irq[i] = 0;
sfp->need_poll = true;
continue;
}
{QMI_FIXED_INTF(0x1bc7, 0x1101, 3)}, /* Telit ME910 dual modem */
{QMI_FIXED_INTF(0x1bc7, 0x1200, 5)}, /* Telit LE920 */
{QMI_QUIRK_SET_DTR(0x1bc7, 0x1201, 2)}, /* Telit LE920, LE920A4 */
+ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1230, 2)}, /* Telit LE910Cx */
{QMI_QUIRK_SET_DTR(0x1bc7, 0x1260, 2)}, /* Telit LE910Cx */
{QMI_QUIRK_SET_DTR(0x1bc7, 0x1261, 2)}, /* Telit LE910Cx */
{QMI_QUIRK_SET_DTR(0x1bc7, 0x1900, 1)}, /* Telit LN940 series */
u64 dma_end = 0;
/* Determine the overall bounds of all DMA regions */
- for (dma_start = ~0ULL; r->size; r++) {
+ for (dma_start = ~0; r->size; r++) {
/* Take lower and upper limits */
if (r->dma_start < dma_start)
dma_start = r->dma_start;
struct opp_device *opp_dev, *temp;
int i;
+ /* Drop the lock as soon as we can */
+ list_del(&opp_table->node);
+ mutex_unlock(&opp_table_lock);
+
_of_clear_opp_table(opp_table);
/* Release clk */
mutex_destroy(&opp_table->genpd_virt_dev_lock);
mutex_destroy(&opp_table->lock);
- list_del(&opp_table->node);
kfree(opp_table);
-
- mutex_unlock(&opp_table_lock);
}
void dev_pm_opp_put_opp_table(struct opp_table *opp_table)
return ERR_PTR(-EINVAL);
opp_table = dev_pm_opp_get_opp_table(dev);
- if (!IS_ERR(opp_table))
+ if (IS_ERR(opp_table))
return opp_table;
/* This should be called before OPPs are initialized */
nr -= 2;
}
+ return 0;
+
remove_static_opp:
_opp_remove_all_static(opp_table);
* ATU, so we should not program the ATU here.
*/
if (pp->bridge->child_ops == &dw_child_pcie_ops) {
- struct resource_entry *entry =
- resource_list_first_type(&pp->bridge->windows, IORESOURCE_MEM);
+ struct resource_entry *tmp, *entry = NULL;
+
+ /* Get last memory resource entry */
+ resource_list_for_each_entry(tmp, &pp->bridge->windows)
+ if (resource_type(tmp->res) == IORESOURCE_MEM)
+ entry = tmp;
dw_pcie_prog_outbound_atu(pci, PCIE_ATU_REGION_INDEX0,
PCIE_ATU_TYPE_MEM, entry->res->start,
}
/*
- * We can't use devm_of_pci_get_host_bridge_resources() because we
- * need to parse our special DT properties encoding the MEM and IO
- * apertures.
+ * devm_of_pci_get_host_bridge_resources() only sets up translateable resources,
+ * so we need extra resource setup parsing our special DT properties encoding
+ * the MEM and IO apertures.
*/
static int mvebu_pcie_parse_request_resources(struct mvebu_pcie *pcie)
{
struct device *dev = &pcie->pdev->dev;
- struct device_node *np = dev->of_node;
struct pci_host_bridge *bridge = pci_host_bridge_from_priv(pcie);
int ret;
- /* Get the bus range */
- ret = of_pci_parse_bus_range(np, &pcie->busn);
- if (ret) {
- dev_err(dev, "failed to parse bus-range property: %d\n", ret);
- return ret;
- }
- pci_add_resource(&bridge->windows, &pcie->busn);
-
/* Get the PCIe memory aperture */
mvebu_mbus_get_pcie_mem_aperture(&pcie->mem);
if (resource_size(&pcie->mem) == 0) {
pcie->mem.name = "PCI MEM";
pci_add_resource(&bridge->windows, &pcie->mem);
+ ret = devm_request_resource(dev, &iomem_resource, &pcie->mem);
+ if (ret)
+ return ret;
/* Get the PCIe IO aperture */
mvebu_mbus_get_pcie_io_aperture(&pcie->io);
pcie->realio.name = "PCI I/O";
pci_add_resource(&bridge->windows, &pcie->realio);
+ ret = devm_request_resource(dev, &ioport_resource, &pcie->realio);
+ if (ret)
+ return ret;
}
- return devm_request_pci_bus_resources(dev, &bridge->windows);
+ return 0;
}
/*
{
dev->acs_cap = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ACS);
- if (dev->acs_cap)
- pci_enable_acs(dev);
+ /*
+ * Attempt to enable ACS regardless of capability because some Root
+ * Ports (e.g. those quirked with *_intel_pch_acs_*) do not have
+ * the standard ACS capability but still support ACS via those
+ * quirks.
+ */
+ pci_enable_acs(dev);
}
/**
case ARBITRARY_UNIT:
default:
return value;
- };
+ }
if (to_raw)
return div64_u64(value, units) * scale;
ret = rdev->desc->fixed_uV;
} else if (rdev->supply) {
ret = regulator_get_voltage_rdev(rdev->supply->rdev);
+ } else if (rdev->supply_name) {
+ return -EPROBE_DEFER;
} else {
return -EINVAL;
}
if (!chip)
return 0;
- /*
- * Retrieve the corresponding GPIO line used for CS.
- * The inversion semantics will be handled by the GPIO core
- * code, so we pass GPIOD_OUT_LOW for "unasserted" and
- * the correct flag for inversion semantics. The SPI_CS_HIGH
- * on spi->mode cannot be checked for polarity in this case
- * as the flag use_gpio_descriptors enforces SPI_CS_HIGH.
- */
- if (of_property_read_bool(spi->dev.of_node, "spi-cs-high"))
- lflags = GPIO_ACTIVE_HIGH;
- else
- lflags = GPIO_ACTIVE_LOW;
spi->cs_gpiod = gpiochip_request_own_desc(chip, 8 - spi->chip_select,
DRV_NAME,
lflags,
#ifdef CONFIG_PM_SLEEP
static int dspi_suspend(struct device *dev)
{
- struct spi_controller *ctlr = dev_get_drvdata(dev);
- struct fsl_dspi *dspi = spi_controller_get_devdata(ctlr);
+ struct fsl_dspi *dspi = dev_get_drvdata(dev);
if (dspi->irq)
disable_irq(dspi->irq);
- spi_controller_suspend(ctlr);
+ spi_controller_suspend(dspi->ctlr);
clk_disable_unprepare(dspi->clk);
pinctrl_pm_select_sleep_state(dev);
static int dspi_resume(struct device *dev)
{
- struct spi_controller *ctlr = dev_get_drvdata(dev);
- struct fsl_dspi *dspi = spi_controller_get_devdata(ctlr);
+ struct fsl_dspi *dspi = dev_get_drvdata(dev);
int ret;
pinctrl_pm_select_default_state(dev);
ret = clk_prepare_enable(dspi->clk);
if (ret)
return ret;
- spi_controller_resume(ctlr);
+ spi_controller_resume(dspi->ctlr);
if (dspi->irq)
enable_irq(dspi->irq);
goto out_master_put;
}
- pm_runtime_enable(spi_imx->dev);
+ ret = clk_prepare_enable(spi_imx->clk_per);
+ if (ret)
+ goto out_master_put;
+
+ ret = clk_prepare_enable(spi_imx->clk_ipg);
+ if (ret)
+ goto out_put_per;
+
pm_runtime_set_autosuspend_delay(spi_imx->dev, MXC_RPM_TIMEOUT);
pm_runtime_use_autosuspend(spi_imx->dev);
-
- ret = pm_runtime_get_sync(spi_imx->dev);
- if (ret < 0) {
- dev_err(spi_imx->dev, "failed to enable clock\n");
- goto out_runtime_pm_put;
- }
+ pm_runtime_set_active(spi_imx->dev);
+ pm_runtime_enable(spi_imx->dev);
spi_imx->spi_clk = clk_get_rate(spi_imx->clk_per);
/*
spi_imx_sdma_exit(spi_imx);
out_runtime_pm_put:
pm_runtime_dont_use_autosuspend(spi_imx->dev);
- pm_runtime_put_sync(spi_imx->dev);
+ pm_runtime_set_suspended(&pdev->dev);
pm_runtime_disable(spi_imx->dev);
+
+ clk_disable_unprepare(spi_imx->clk_ipg);
+out_put_per:
+ clk_disable_unprepare(spi_imx->clk_per);
out_master_put:
spi_master_put(master);
In addition, it is recommended to declare a mmc-pwrseq on SDIO host above
WFx. Without it, you may encounter issues with warm boot. The mmc-pwrseq
should be compatible with mmc-pwrseq-simple. Please consult
- Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt for more
+ Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.yaml for more
information.
For SPI':'
return 0;
}
-static inline int do_fontx_ioctl(int cmd,
+static inline int do_fontx_ioctl(struct vc_data *vc, int cmd,
struct consolefontdesc __user *user_cfd,
struct console_font_op *op)
{
op->height = cfdarg.charheight;
op->charcount = cfdarg.charcount;
op->data = cfdarg.chardata;
- return con_font_op(vc_cons[fg_console].d, op);
- case GIO_FONTX: {
+ return con_font_op(vc, op);
+
+ case GIO_FONTX:
op->op = KD_FONT_OP_GET;
op->flags = KD_FONT_FLAG_OLD;
op->width = 8;
op->height = cfdarg.charheight;
op->charcount = cfdarg.charcount;
op->data = cfdarg.chardata;
- i = con_font_op(vc_cons[fg_console].d, op);
+ i = con_font_op(vc, op);
if (i)
return i;
cfdarg.charheight = op->height;
if (copy_to_user(user_cfd, &cfdarg, sizeof(struct consolefontdesc)))
return -EFAULT;
return 0;
- }
}
return -EINVAL;
}
-static int vt_io_fontreset(struct console_font_op *op)
+static int vt_io_fontreset(struct vc_data *vc, struct console_font_op *op)
{
int ret;
op->op = KD_FONT_OP_SET_DEFAULT;
op->data = NULL;
- ret = con_font_op(vc_cons[fg_console].d, op);
+ ret = con_font_op(vc, op);
if (ret)
return ret;
console_lock();
- con_set_default_unimap(vc_cons[fg_console].d);
+ con_set_default_unimap(vc);
console_unlock();
return 0;
op.height = 0;
op.charcount = 256;
op.data = up;
- return con_font_op(vc_cons[fg_console].d, &op);
+ return con_font_op(vc, &op);
case GIO_FONT:
op.op = KD_FONT_OP_GET;
op.height = 32;
op.charcount = 256;
op.data = up;
- return con_font_op(vc_cons[fg_console].d, &op);
+ return con_font_op(vc, &op);
case PIO_CMAP:
if (!perm)
fallthrough;
case GIO_FONTX:
- return do_fontx_ioctl(cmd, up, &op);
+ return do_fontx_ioctl(vc, cmd, up, &op);
case PIO_FONTRESET:
if (!perm)
return -EPERM;
- return vt_io_fontreset(&op);
+ return vt_io_fontreset(vc, &op);
case PIO_SCRNMAP:
if (!perm)
};
static inline int
-compat_fontx_ioctl(int cmd, struct compat_consolefontdesc __user *user_cfd,
- int perm, struct console_font_op *op)
+compat_fontx_ioctl(struct vc_data *vc, int cmd,
+ struct compat_consolefontdesc __user *user_cfd,
+ int perm, struct console_font_op *op)
{
struct compat_consolefontdesc cfdarg;
int i;
op->height = cfdarg.charheight;
op->charcount = cfdarg.charcount;
op->data = compat_ptr(cfdarg.chardata);
- return con_font_op(vc_cons[fg_console].d, op);
+ return con_font_op(vc, op);
+
case GIO_FONTX:
op->op = KD_FONT_OP_GET;
op->flags = KD_FONT_FLAG_OLD;
op->height = cfdarg.charheight;
op->charcount = cfdarg.charcount;
op->data = compat_ptr(cfdarg.chardata);
- i = con_font_op(vc_cons[fg_console].d, op);
+ i = con_font_op(vc, op);
if (i)
return i;
cfdarg.charheight = op->height;
*/
case PIO_FONTX:
case GIO_FONTX:
- return compat_fontx_ioctl(cmd, up, perm, &op);
+ return compat_fontx_ioctl(vc, cmd, up, perm, &op);
case KDFONTOP:
return compat_kdfontop_ioctl(up, perm, &op, vc);
.set = afs_xattr_set_acl,
};
-static void yfs_acl_put(struct afs_operation *op)
-{
- yfs_free_opaque_acl(op->yacl);
-}
-
static const struct afs_operation_ops yfs_fetch_opaque_acl_operation = {
.issue_yfs_rpc = yfs_fs_fetch_opaque_acl,
.success = afs_acl_success,
static const struct afs_operation_ops yfs_store_opaque_acl2_operation = {
.issue_yfs_rpc = yfs_fs_store_opaque_acl2,
.success = afs_acl_success,
- .put = yfs_acl_put,
+ .put = afs_acl_put,
};
/*
memcpy(bp, acl->data, acl->size);
if (acl->size != size)
memset((void *)bp + acl->size, 0, size - acl->size);
+ bp += size / sizeof(__be32);
yfs_check_req(call, bp);
trace_afs_make_fs_call(call, &vp->fid);
out_free:
kfree(gl->gl_lksb.sb_lvbptr);
kmem_cache_free(cachep, gl);
- atomic_dec(&sdp->sd_glock_disposal);
+ if (atomic_dec_and_test(&sdp->sd_glock_disposal))
+ wake_up(&sdp->sd_glock_wait);
out:
return ret;
GFS2_LFC_AIL_FLUSH);
}
+/**
+ * gfs2_rgrp_metasync - sync out the metadata of a resource group
+ * @gl: the glock protecting the resource group
+ *
+ */
+
+static int gfs2_rgrp_metasync(struct gfs2_glock *gl)
+{
+ struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
+ struct address_space *metamapping = &sdp->sd_aspace;
+ struct gfs2_rgrpd *rgd = gfs2_glock2rgrp(gl);
+ const unsigned bsize = sdp->sd_sb.sb_bsize;
+ loff_t start = (rgd->rd_addr * bsize) & PAGE_MASK;
+ loff_t end = PAGE_ALIGN((rgd->rd_addr + rgd->rd_length) * bsize) - 1;
+ int error;
+
+ filemap_fdatawrite_range(metamapping, start, end);
+ error = filemap_fdatawait_range(metamapping, start, end);
+ WARN_ON_ONCE(error && !gfs2_withdrawn(sdp));
+ mapping_set_error(metamapping, error);
+ if (error)
+ gfs2_io_error(sdp);
+ return error;
+}
+
/**
* rgrp_go_sync - sync out the metadata for this glock
* @gl: the glock
static int rgrp_go_sync(struct gfs2_glock *gl)
{
struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
- struct address_space *mapping = &sdp->sd_aspace;
struct gfs2_rgrpd *rgd = gfs2_glock2rgrp(gl);
- const unsigned bsize = sdp->sd_sb.sb_bsize;
- loff_t start = (rgd->rd_addr * bsize) & PAGE_MASK;
- loff_t end = PAGE_ALIGN((rgd->rd_addr + rgd->rd_length) * bsize) - 1;
int error;
if (!test_and_clear_bit(GLF_DIRTY, &gl->gl_flags))
gfs2_log_flush(sdp, gl, GFS2_LOG_HEAD_FLUSH_NORMAL |
GFS2_LFC_RGRP_GO_SYNC);
- filemap_fdatawrite_range(mapping, start, end);
- error = filemap_fdatawait_range(mapping, start, end);
- WARN_ON_ONCE(error && !gfs2_withdrawn(sdp));
- mapping_set_error(mapping, error);
+ error = gfs2_rgrp_metasync(gl);
if (!error)
error = gfs2_ail_empty_gl(gl);
gfs2_free_clones(rgd);
}
/**
- * inode_go_sync - Sync the dirty data and/or metadata for an inode glock
+ * gfs2_inode_metasync - sync out the metadata of an inode
+ * @gl: the glock protecting the inode
+ *
+ */
+int gfs2_inode_metasync(struct gfs2_glock *gl)
+{
+ struct address_space *metamapping = gfs2_glock2aspace(gl);
+ int error;
+
+ filemap_fdatawrite(metamapping);
+ error = filemap_fdatawait(metamapping);
+ if (error)
+ gfs2_io_error(gl->gl_name.ln_sbd);
+ return error;
+}
+
+/**
+ * inode_go_sync - Sync the dirty metadata of an inode
* @gl: the glock protecting the inode
*
*/
error = filemap_fdatawait(mapping);
mapping_set_error(mapping, error);
}
- ret = filemap_fdatawait(metamapping);
- mapping_set_error(metamapping, ret);
+ ret = gfs2_inode_metasync(gl);
if (!error)
error = ret;
gfs2_ail_empty_gl(gl);
extern const struct gfs2_glock_operations gfs2_journal_glops;
extern const struct gfs2_glock_operations *gfs2_glops_list[];
+extern int gfs2_inode_metasync(struct gfs2_glock *gl);
extern void gfs2_ail_flush(struct gfs2_glock *gl, bool fsync);
#endif /* __GLOPS_DOT_H__ */
error = gfs2_glock_nq_init(io_gl, LM_ST_SHARED, GL_EXACT, &ip->i_iopen_gh);
if (unlikely(error))
goto fail;
- gfs2_cancel_delete_work(ip->i_iopen_gh.gh_gl);
+ if (blktype != GFS2_BLKST_UNLINKED)
+ gfs2_cancel_delete_work(ip->i_iopen_gh.gh_gl);
glock_set_object(ip->i_iopen_gh.gh_gl, ip);
gfs2_glock_put(io_gl);
io_gl = NULL;
#include "incore.h"
#include "inode.h"
#include "glock.h"
+#include "glops.h"
#include "log.h"
#include "lops.h"
#include "meta_io.h"
return error;
}
-/**
- * gfs2_meta_sync - Sync all buffers associated with a glock
- * @gl: The glock
- *
- */
-
-void gfs2_meta_sync(struct gfs2_glock *gl)
-{
- struct address_space *mapping = gfs2_glock2aspace(gl);
- struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
- int error;
-
- if (mapping == NULL)
- mapping = &sdp->sd_aspace;
-
- filemap_fdatawrite(mapping);
- error = filemap_fdatawait(mapping);
-
- if (error)
- gfs2_io_error(gl->gl_name.ln_sbd);
-}
-
static void buf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass)
{
struct gfs2_inode *ip = GFS2_I(jd->jd_inode);
struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
if (error) {
- gfs2_meta_sync(ip->i_gl);
+ gfs2_inode_metasync(ip->i_gl);
return;
}
if (pass != 1)
return;
- gfs2_meta_sync(ip->i_gl);
+ gfs2_inode_metasync(ip->i_gl);
fs_info(sdp, "jid=%u: Replayed %u of %u blocks\n",
jd->jd_jid, jd->jd_replayed_blocks, jd->jd_found_blocks);
struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
if (error) {
- gfs2_meta_sync(ip->i_gl);
+ gfs2_inode_metasync(ip->i_gl);
return;
}
if (pass != 1)
return;
/* data sync? */
- gfs2_meta_sync(ip->i_gl);
+ gfs2_inode_metasync(ip->i_gl);
fs_info(sdp, "jid=%u: Replayed %u of %u data blocks\n",
jd->jd_jid, jd->jd_replayed_blocks, jd->jd_found_blocks);
extern void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh);
extern int gfs2_find_jhead(struct gfs2_jdesc *jd,
struct gfs2_log_header_host *head, bool keep_cache);
-extern void gfs2_meta_sync(struct gfs2_glock *gl);
-
static inline unsigned int buf_limit(struct gfs2_sbd *sdp)
{
unsigned int limit;
if (IS_ERR(sdp->sd_statfs_inode)) {
error = PTR_ERR(sdp->sd_statfs_inode);
fs_err(sdp, "can't read in statfs inode: %d\n", error);
- goto fail;
+ goto out;
}
+ if (sdp->sd_args.ar_spectator)
+ goto out;
pn = gfs2_lookup_simple(master, "per_node");
if (IS_ERR(pn)) {
iput(pn);
put_statfs:
iput(sdp->sd_statfs_inode);
-fail:
+out:
return error;
}
/* Uninitialize and free up memory used by the list of statfs inodes */
static void uninit_statfs(struct gfs2_sbd *sdp)
{
- gfs2_glock_dq_uninit(&sdp->sd_sc_gh);
- free_local_statfs_inodes(sdp);
+ if (!sdp->sd_args.ar_spectator) {
+ gfs2_glock_dq_uninit(&sdp->sd_sc_gh);
+ free_local_statfs_inodes(sdp);
+ }
iput(sdp->sd_statfs_inode);
}
if (undo) {
jindex = 0;
- goto fail_jinode_gh;
+ goto fail_statfs;
}
sdp->sd_jindex = gfs2_lookup_simple(master, "jindex");
mark_buffer_dirty(bh);
brelse(bh);
- gfs2_meta_sync(ip->i_gl);
+ gfs2_inode_metasync(ip->i_gl);
out:
return error;
}
gfs2_free_clones(rgd);
+ return_all_reservations(rgd);
kfree(rgd->rd_bits);
rgd->rd_bits = NULL;
- return_all_reservations(rgd);
kmem_cache_free(gfs2_rgrpd_cachep, rgd);
}
}
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
+ if (!test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags))
+ return -EROFS;
+
if (!blk_queue_discard(q))
return -EOPNOTSUPP;
gfs2_jindex_free(sdp);
/* Take apart glock structures and buffer lists */
gfs2_gl_hash_clear(sdp);
+ truncate_inode_pages_final(&sdp->sd_aspace);
gfs2_delete_debugfs_file(sdp);
/* Unmount the locking protocol */
gfs2_lm_unmount(sdp);
oom_adj = (task->signal->oom_score_adj * -OOM_DISABLE) /
OOM_SCORE_ADJ_MAX;
put_task_struct(task);
+ if (oom_adj > OOM_ADJUST_MAX)
+ oom_adj = OOM_ADJUST_MAX;
len = snprintf(buffer, sizeof(buffer), "%d\n", oom_adj);
return simple_read_from_buffer(buf, count, ppos, buffer, len);
}
}
#endif /* IS_BUILTIN(CONFIG_KUNIT) */
+#ifdef MODULE
/**
- * kunit_test_suites() - used to register one or more &struct kunit_suite
- * with KUnit.
+ * kunit_test_suites_for_module() - used to register one or more
+ * &struct kunit_suite with KUnit.
*
- * @suites_list...: a statically allocated list of &struct kunit_suite.
+ * @__suites: a statically allocated list of &struct kunit_suite.
*
- * Registers @suites_list with the test framework. See &struct kunit_suite for
+ * Registers @__suites with the test framework. See &struct kunit_suite for
* more information.
*
* If a test suite is built-in, module_init() gets translated into
* module_{init|exit} functions for the builtin case when registering
* suites via kunit_test_suites() below.
*/
-#ifdef MODULE
#define kunit_test_suites_for_module(__suites) \
static int __init kunit_test_suites_init(void) \
{ \
* kunit_test_suites() - used to register one or more &struct kunit_suite
* with KUnit.
*
- * @suites: a statically allocated list of &struct kunit_suite.
+ * @__suites: a statically allocated list of &struct kunit_suite.
*
* Registers @suites with the test framework. See &struct kunit_suite for
* more information.
* module.
*
*/
-#define kunit_test_suites(...) \
+#define kunit_test_suites(__suites...) \
__kunit_test_suites(__UNIQUE_ID(array), \
__UNIQUE_ID(suites), \
- __VA_ARGS__)
+ ##__suites)
#define kunit_test_suite(suite) kunit_test_suites(&suite)
* @flags: Zero or more BLK_MQ_F_* flags.
* @driver_data: Pointer to data owned by the block driver that created this
* tag set.
+ * @active_queues_shared_sbitmap:
+ * number of active request queues per tag set.
* @__bitmap_tags: A shared tags sbitmap, used over all hctx's
* @__breserved_tags:
* A shared reserved tags sbitmap, used over all hctx's
*/
static inline struct sk_buff *can_create_echo_skb(struct sk_buff *skb)
{
- if (skb_shared(skb)) {
- struct sk_buff *nskb = skb_clone(skb, GFP_ATOMIC);
+ struct sk_buff *nskb;
- if (likely(nskb)) {
- can_skb_set_owner(nskb, skb->sk);
- consume_skb(skb);
- return nskb;
- } else {
- kfree_skb(skb);
- return NULL;
- }
+ nskb = skb_clone(skb, GFP_ATOMIC);
+ if (unlikely(!nskb)) {
+ kfree_skb(skb);
+ return NULL;
}
- /* we can assume to have an unshared skb with proper owner */
- return skb;
+ can_skb_set_owner(nskb, skb->sk);
+ consume_skb(skb);
+ return nskb;
}
#endif /* !_CAN_SKB_H */
return VM_FAULT_NOPAGE;
}
+#ifndef io_remap_pfn_range
+static inline int io_remap_pfn_range(struct vm_area_struct *vma,
+ unsigned long addr, unsigned long pfn,
+ unsigned long size, pgprot_t prot)
+{
+ return remap_pfn_range(vma, addr, pfn, size, pgprot_decrypted(prot));
+}
+#endif
+
static inline vm_fault_t vmf_error(int err)
{
if (err == -ENOMEM)
const u_int16_t attr_count; /* number of nlattr's */
};
+enum nfnl_abort_action {
+ NFNL_ABORT_NONE = 0,
+ NFNL_ABORT_AUTOLOAD,
+ NFNL_ABORT_VALIDATE,
+};
+
struct nfnetlink_subsystem {
const char *name;
__u8 subsys_id; /* nfnetlink subsystem ID */
const struct nfnl_callback *cb; /* callback for individual types */
struct module *owner;
int (*commit)(struct net *net, struct sk_buff *skb);
- int (*abort)(struct net *net, struct sk_buff *skb, bool autoload);
+ int (*abort)(struct net *net, struct sk_buff *skb,
+ enum nfnl_abort_action action);
void (*cleanup)(struct net *net);
bool (*valid_genid)(struct net *net, u32 genid);
};
u_int32_t mark;
};
-int ip_route_me_harder(struct net *net, struct sk_buff *skb, unsigned addr_type);
+int ip_route_me_harder(struct net *net, struct sock *sk, struct sk_buff *skb, unsigned addr_type);
struct nf_queue_entry;
#if IS_MODULE(CONFIG_IPV6)
int (*chk_addr)(struct net *net, const struct in6_addr *addr,
const struct net_device *dev, int strict);
- int (*route_me_harder)(struct net *net, struct sk_buff *skb);
+ int (*route_me_harder)(struct net *net, struct sock *sk, struct sk_buff *skb);
int (*dev_get_saddr)(struct net *net, const struct net_device *dev,
const struct in6_addr *daddr, unsigned int srcprefs,
struct in6_addr *saddr);
#endif
}
-int ip6_route_me_harder(struct net *net, struct sk_buff *skb);
+int ip6_route_me_harder(struct net *net, struct sock *sk, struct sk_buff *skb);
-static inline int nf_ip6_route_me_harder(struct net *net, struct sk_buff *skb)
+static inline int nf_ip6_route_me_harder(struct net *net, struct sock *sk, struct sk_buff *skb)
{
#if IS_MODULE(CONFIG_IPV6)
const struct nf_ipv6_ops *v6_ops = nf_get_ipv6_ops();
if (!v6_ops)
return -EHOSTUNREACH;
- return v6_ops->route_me_harder(net, skb);
+ return v6_ops->route_me_harder(net, sk, skb);
#elif IS_BUILTIN(CONFIG_IPV6)
- return ip6_route_me_harder(net, skb);
+ return ip6_route_me_harder(net, sk, skb);
#else
return -EHOSTUNREACH;
#endif
/**
* find_lock_page - locate, pin and lock a pagecache page
* @mapping: the address_space to search
- * @offset: the page index
+ * @index: the page index
*
- * Looks up the page cache entry at @mapping & @offset. If there is a
+ * Looks up the page cache entry at @mapping & @index. If there is a
* page cache page, it is returned locked and with an increased
* refcount.
*
/**
* find_lock_head - Locate, pin and lock a pagecache page.
* @mapping: The address_space to search.
- * @offset: The page index.
+ * @index: The page index.
*
- * Looks up the page cache entry at @mapping & @offset. If there is a
+ * Looks up the page cache entry at @mapping & @index. If there is a
* page cache page, its head page is returned locked and with an increased
* refcount.
*
#endif /* !__ASSEMBLY__ */
-#ifndef io_remap_pfn_range
-#define io_remap_pfn_range remap_pfn_range
-#endif
-
#ifndef has_transparent_hugepage
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
#define has_transparent_hugepage() 1
PHY_INTERFACE_MODE_MAX,
} phy_interface_t;
-/**
+/*
* phy_supported_speeds - return all speeds currently supported by a PHY device
- * @phy: The PHY device to return supported speeds of.
- * @speeds: buffer to store supported speeds in.
- * @size: size of speeds buffer.
- *
- * Description: Returns the number of supported speeds, and fills
- * the speeds buffer with the supported speeds. If speeds buffer is
- * too small to contain all currently supported speeds, will return as
- * many speeds as can fit.
*/
unsigned int phy_supported_speeds(struct phy_device *phy,
unsigned int *speeds,
regnum, mask, set);
}
-/**
+/*
* phy_read_mmd - Convenience function for reading a register
* from an MMD on a given PHY.
- * @phydev: The phy_device struct
- * @devad: The MMD to read from
- * @regnum: The register on the MMD to read
- *
- * Same rules as for phy_read();
*/
int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum);
__ret; \
})
-/**
+/*
* __phy_read_mmd - Convenience function for reading a register
* from an MMD on a given PHY.
- * @phydev: The phy_device struct
- * @devad: The MMD to read from
- * @regnum: The register on the MMD to read
- *
- * Same rules as for __phy_read();
*/
int __phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum);
-/**
+/*
* phy_write_mmd - Convenience function for writing a register
* on an MMD on a given PHY.
- * @phydev: The phy_device struct
- * @devad: The MMD to write to
- * @regnum: The register on the MMD to read
- * @val: value to write to @regnum
- *
- * Same rules as for phy_write();
*/
int phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val);
-/**
+/*
* __phy_write_mmd - Convenience function for writing a register
* on an MMD on a given PHY.
- * @phydev: The phy_device struct
- * @devad: The MMD to write to
- * @regnum: The register on the MMD to read
- * @val: value to write to @regnum
- *
- * Same rules as for __phy_write();
*/
int __phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val);
extern void pm_runtime_update_max_time_suspended(struct device *dev,
s64 delta_ns);
extern void pm_runtime_set_memalloc_noio(struct device *dev, bool enable);
-extern void pm_runtime_clean_up_links(struct device *dev);
extern void pm_runtime_get_suppliers(struct device *dev);
extern void pm_runtime_put_suppliers(struct device *dev);
extern void pm_runtime_new_link(struct device *dev);
-extern void pm_runtime_drop_link(struct device *dev);
+extern void pm_runtime_drop_link(struct device_link *link);
/**
* pm_runtime_get_if_in_use - Conditionally bump up runtime PM usage counter.
struct device *dev) { return 0; }
static inline void pm_runtime_set_memalloc_noio(struct device *dev,
bool enable){}
-static inline void pm_runtime_clean_up_links(struct device *dev) {}
static inline void pm_runtime_get_suppliers(struct device *dev) {}
static inline void pm_runtime_put_suppliers(struct device *dev) {}
static inline void pm_runtime_new_link(struct device *dev) {}
-static inline void pm_runtime_drop_link(struct device *dev) {}
+static inline void pm_runtime_drop_link(struct device_link *link) {}
#endif /* !CONFIG_PM */
return atomic_read(&r->refs);
}
-/**
- * refcount_add_not_zero - add a value to a refcount unless it is 0
- * @i: the value to add to the refcount
- * @r: the refcount
- *
- * Will saturate at REFCOUNT_SATURATED and WARN.
- *
- * Provides no memory ordering, it is assumed the caller has guaranteed the
- * object memory to be stable (RCU, etc.). It does provide a control dependency
- * and thereby orders future stores. See the comment on top.
- *
- * Use of this function is not recommended for the normal reference counting
- * use case in which references are taken and released one at a time. In these
- * cases, refcount_inc(), or one of its variants, should instead be used to
- * increment a reference count.
- *
- * Return: false if the passed refcount is 0, true otherwise
- */
static inline __must_check bool __refcount_add_not_zero(int i, refcount_t *r, int *oldp)
{
int old = refcount_read(r);
return old;
}
-static inline __must_check bool refcount_add_not_zero(int i, refcount_t *r)
-{
- return __refcount_add_not_zero(i, r, NULL);
-}
-
/**
- * refcount_add - add a value to a refcount
+ * refcount_add_not_zero - add a value to a refcount unless it is 0
* @i: the value to add to the refcount
* @r: the refcount
*
- * Similar to atomic_add(), but will saturate at REFCOUNT_SATURATED and WARN.
+ * Will saturate at REFCOUNT_SATURATED and WARN.
*
* Provides no memory ordering, it is assumed the caller has guaranteed the
* object memory to be stable (RCU, etc.). It does provide a control dependency
* use case in which references are taken and released one at a time. In these
* cases, refcount_inc(), or one of its variants, should instead be used to
* increment a reference count.
+ *
+ * Return: false if the passed refcount is 0, true otherwise
*/
+static inline __must_check bool refcount_add_not_zero(int i, refcount_t *r)
+{
+ return __refcount_add_not_zero(i, r, NULL);
+}
+
static inline void __refcount_add(int i, refcount_t *r, int *oldp)
{
int old = atomic_fetch_add_relaxed(i, &r->refs);
refcount_warn_saturate(r, REFCOUNT_ADD_OVF);
}
+/**
+ * refcount_add - add a value to a refcount
+ * @i: the value to add to the refcount
+ * @r: the refcount
+ *
+ * Similar to atomic_add(), but will saturate at REFCOUNT_SATURATED and WARN.
+ *
+ * Provides no memory ordering, it is assumed the caller has guaranteed the
+ * object memory to be stable (RCU, etc.). It does provide a control dependency
+ * and thereby orders future stores. See the comment on top.
+ *
+ * Use of this function is not recommended for the normal reference counting
+ * use case in which references are taken and released one at a time. In these
+ * cases, refcount_inc(), or one of its variants, should instead be used to
+ * increment a reference count.
+ */
static inline void refcount_add(int i, refcount_t *r)
{
__refcount_add(i, r, NULL);
}
+static inline __must_check bool __refcount_inc_not_zero(refcount_t *r, int *oldp)
+{
+ return __refcount_add_not_zero(1, r, oldp);
+}
+
/**
* refcount_inc_not_zero - increment a refcount unless it is 0
* @r: the refcount to increment
*
* Return: true if the increment was successful, false otherwise
*/
-static inline __must_check bool __refcount_inc_not_zero(refcount_t *r, int *oldp)
+static inline __must_check bool refcount_inc_not_zero(refcount_t *r)
{
- return __refcount_add_not_zero(1, r, oldp);
+ return __refcount_inc_not_zero(r, NULL);
}
-static inline __must_check bool refcount_inc_not_zero(refcount_t *r)
+static inline void __refcount_inc(refcount_t *r, int *oldp)
{
- return __refcount_inc_not_zero(r, NULL);
+ __refcount_add(1, r, oldp);
}
/**
* Will WARN if the refcount is 0, as this represents a possible use-after-free
* condition.
*/
-static inline void __refcount_inc(refcount_t *r, int *oldp)
+static inline void refcount_inc(refcount_t *r)
{
- __refcount_add(1, r, oldp);
+ __refcount_inc(r, NULL);
}
-static inline void refcount_inc(refcount_t *r)
+static inline __must_check bool __refcount_sub_and_test(int i, refcount_t *r, int *oldp)
{
- __refcount_inc(r, NULL);
+ int old = atomic_fetch_sub_release(i, &r->refs);
+
+ if (oldp)
+ *oldp = old;
+
+ if (old == i) {
+ smp_acquire__after_ctrl_dep();
+ return true;
+ }
+
+ if (unlikely(old < 0 || old - i < 0))
+ refcount_warn_saturate(r, REFCOUNT_SUB_UAF);
+
+ return false;
}
/**
*
* Return: true if the resulting refcount is 0, false otherwise
*/
-static inline __must_check bool __refcount_sub_and_test(int i, refcount_t *r, int *oldp)
+static inline __must_check bool refcount_sub_and_test(int i, refcount_t *r)
{
- int old = atomic_fetch_sub_release(i, &r->refs);
-
- if (oldp)
- *oldp = old;
-
- if (old == i) {
- smp_acquire__after_ctrl_dep();
- return true;
- }
-
- if (unlikely(old < 0 || old - i < 0))
- refcount_warn_saturate(r, REFCOUNT_SUB_UAF);
-
- return false;
+ return __refcount_sub_and_test(i, r, NULL);
}
-static inline __must_check bool refcount_sub_and_test(int i, refcount_t *r)
+static inline __must_check bool __refcount_dec_and_test(refcount_t *r, int *oldp)
{
- return __refcount_sub_and_test(i, r, NULL);
+ return __refcount_sub_and_test(1, r, oldp);
}
/**
*
* Return: true if the resulting refcount is 0, false otherwise
*/
-static inline __must_check bool __refcount_dec_and_test(refcount_t *r, int *oldp)
-{
- return __refcount_sub_and_test(1, r, oldp);
-}
-
static inline __must_check bool refcount_dec_and_test(refcount_t *r)
{
return __refcount_dec_and_test(r, NULL);
}
-/**
- * refcount_dec - decrement a refcount
- * @r: the refcount
- *
- * Similar to atomic_dec(), it will WARN on underflow and fail to decrement
- * when saturated at REFCOUNT_SATURATED.
- *
- * Provides release memory ordering, such that prior loads and stores are done
- * before.
- */
static inline void __refcount_dec(refcount_t *r, int *oldp)
{
int old = atomic_fetch_sub_release(1, &r->refs);
refcount_warn_saturate(r, REFCOUNT_DEC_LEAK);
}
+/**
+ * refcount_dec - decrement a refcount
+ * @r: the refcount
+ *
+ * Similar to atomic_dec(), it will WARN on underflow and fail to decrement
+ * when saturated at REFCOUNT_SATURATED.
+ *
+ * Provides release memory ordering, such that prior loads and stores are done
+ * before.
+ */
static inline void refcount_dec(refcount_t *r)
{
__refcount_dec(r, NULL);
enum cfg80211_station_type statype);
/**
- * enum station_info_rate_flags - bitrate info flags
+ * enum rate_info_flags - bitrate info flags
*
* Used by the driver to indicate the specific rate transmission
* type for 802.11n transmissions.
};
/**
- * enum station_info_rate_flags - bitrate info flags
+ * enum bss_param_flags - bitrate info flags
*
* Used by the driver to indicate the specific rate transmission
* type for 802.11n transmissions.
struct ieee80211_channel *channel, gfp_t gfp);
/**
- * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate
+ * cfg80211_notify_new_peer_candidate - notify cfg80211 of a new mesh peer
+ * candidate
*
* @dev: network device
* @macaddr: the MAC address of the new candidate
void cfg80211_unregister_wdev(struct wireless_dev *wdev);
/**
- * struct cfg80211_ft_event - FT Information Elements
+ * struct cfg80211_ft_event_params - FT Information Elements
* @ies: FT IEs
* @ies_len: length of the FT IE in bytes
* @target_ap: target AP's MAC address
};
/**
- * enum ieee80211_reconfig_complete_type - reconfig type
+ * enum ieee80211_reconfig_type - reconfig type
*
* This enum is used by the reconfig_complete() callback to indicate what
* reconfiguration type was completed.
int band, struct ieee80211_sta **sta);
/**
- * Sanity-check and parse the radiotap header of injected frames
+ * ieee80211_parse_tx_radiotap - Sanity-check and parse the radiotap header
+ * of injected frames
* @skb: packet injected by userspace
* @dev: the &struct device of this 802.11 device
*/
void ieee80211_update_p2p_noa(struct ieee80211_noa_data *data, u32 tsf);
/**
- * ieee80211_tdls_oper - request userspace to perform a TDLS operation
+ * ieee80211_tdls_oper_request - request userspace to perform a TDLS operation
* @vif: virtual interface
* @peer: the peer's destination address
* @oper: the requested TDLS operation
#define ICMPV6_HDR_FIELD 0
#define ICMPV6_UNK_NEXTHDR 1
#define ICMPV6_UNK_OPTION 2
+#define ICMPV6_HDR_INCOMP 3
/*
* constants for (set|get)sockopt
* Process updating of timeout sysctl
*/
int proc_dohung_task_timeout_secs(struct ctl_table *table, int write,
- void __user *buffer,
- size_t *lenp, loff_t *ppos)
+ void *buffer, size_t *lenp, loff_t *ppos)
{
int ret;
*head = &kretprobe_inst_table[hash];
hlist_lock = kretprobe_table_lock_ptr(hash);
- raw_spin_lock_irqsave(hlist_lock, *flags);
+ /*
+ * Nested is a workaround that will soon not be needed.
+ * There's other protections that make sure the same lock
+ * is not taken on the same CPU that lockdep is unaware of.
+ * Differentiate when it is taken in NMI context.
+ */
+ raw_spin_lock_irqsave_nested(hlist_lock, *flags, !!in_nmi());
}
NOKPROBE_SYMBOL(kretprobe_hash_lock);
__acquires(hlist_lock)
{
raw_spinlock_t *hlist_lock = kretprobe_table_lock_ptr(hash);
- raw_spin_lock_irqsave(hlist_lock, *flags);
+ /*
+ * Nested is a workaround that will soon not be needed.
+ * There's other protections that make sure the same lock
+ * is not taken on the same CPU that lockdep is unaware of.
+ * Differentiate when it is taken in NMI context.
+ */
+ raw_spin_lock_irqsave_nested(hlist_lock, *flags, !!in_nmi());
}
NOKPROBE_SYMBOL(kretprobe_table_lock);
/* TODO: consider to only swap the RA after the last pre_handler fired */
hash = hash_ptr(current, KPROBE_HASH_BITS);
- raw_spin_lock_irqsave(&rp->lock, flags);
+ /*
+ * Nested is a workaround that will soon not be needed.
+ * There's other protections that make sure the same lock
+ * is not taken on the same CPU that lockdep is unaware of.
+ */
+ raw_spin_lock_irqsave_nested(&rp->lock, flags, 1);
if (!hlist_empty(&rp->free_instances)) {
ri = hlist_entry(rp->free_instances.first,
struct kretprobe_instance, hlist);
ri->task = current;
if (rp->entry_handler && rp->entry_handler(ri, regs)) {
- raw_spin_lock_irqsave(&rp->lock, flags);
+ raw_spin_lock_irqsave_nested(&rp->lock, flags, 1);
hlist_add_head(&ri->hlist, &rp->free_instances);
raw_spin_unlock_irqrestore(&rp->lock, flags);
return 0;
/* Move the work from worker->delayed_work_list. */
WARN_ON_ONCE(list_empty(&work->node));
list_del_init(&work->node);
- kthread_insert_work(worker, work, &worker->work_list);
+ if (!work->canceling)
+ kthread_insert_work(worker, work, &worker->work_list);
raw_spin_unlock_irqrestore(&worker->lock, flags);
}
static bool sugov_update_next_freq(struct sugov_policy *sg_policy, u64 time,
unsigned int next_freq)
{
- if (sg_policy->next_freq == next_freq &&
- !cpufreq_driver_test_flags(CPUFREQ_NEED_UPDATE_LIMITS))
- return false;
+ if (!sg_policy->need_freq_update) {
+ if (sg_policy->next_freq == next_freq)
+ return false;
+ } else {
+ sg_policy->need_freq_update = cpufreq_driver_test_flags(CPUFREQ_NEED_UPDATE_LIMITS);
+ }
sg_policy->next_freq = next_freq;
sg_policy->last_freq_update_time = time;
freq = map_util_freq(util, freq, max);
- if (freq == sg_policy->cached_raw_freq && !sg_policy->need_freq_update &&
- !cpufreq_driver_test_flags(CPUFREQ_NEED_UPDATE_LIMITS))
+ if (freq == sg_policy->cached_raw_freq && !sg_policy->need_freq_update)
return sg_policy->next_freq;
- sg_policy->need_freq_update = false;
sg_policy->cached_raw_freq = freq;
return cpufreq_driver_resolve_freq(policy, freq);
}
struct sugov_policy *sg_policy = sg_cpu->sg_policy;
unsigned long util, max;
unsigned int next_f;
- bool busy;
unsigned int cached_freq = sg_policy->cached_raw_freq;
sugov_iowait_boost(sg_cpu, time, flags);
if (!sugov_should_update_freq(sg_policy, time))
return;
- /* Limits may have changed, don't skip frequency update */
- busy = !sg_policy->need_freq_update && sugov_cpu_is_busy(sg_cpu);
-
util = sugov_get_util(sg_cpu);
max = sg_cpu->max;
util = sugov_iowait_apply(sg_cpu, time, util, max);
* Do not reduce the frequency if the CPU has not been idle
* recently, as the reduction is likely to be premature then.
*/
- if (busy && next_f < sg_policy->next_freq) {
+ if (sugov_cpu_is_busy(sg_cpu) && next_f < sg_policy->next_freq) {
next_f = sg_policy->next_freq;
/* Restore cached freq as next_freq has changed */
sg_policy->next_freq = 0;
sg_policy->work_in_progress = false;
sg_policy->limits_changed = false;
- sg_policy->need_freq_update = false;
sg_policy->cached_raw_freq = 0;
+ sg_policy->need_freq_update = cpufreq_driver_test_flags(CPUFREQ_NEED_UPDATE_LIMITS);
+
for_each_cpu(cpu, policy->cpus) {
struct sugov_cpu *sg_cpu = &per_cpu(sugov_cpu, cpu);
void task_join_group_stop(struct task_struct *task)
{
+ unsigned long mask = current->jobctl & JOBCTL_STOP_SIGMASK;
+ struct signal_struct *sig = current->signal;
+
+ if (sig->group_stop_count) {
+ sig->group_stop_count++;
+ mask |= JOBCTL_STOP_CONSUME;
+ } else if (!(sig->flags & SIGNAL_STOP_STOPPED))
+ return;
+
/* Have the new thread join an on-going signal group stop */
- unsigned long jobctl = current->jobctl;
- if (jobctl & JOBCTL_STOP_PENDING) {
- struct signal_struct *sig = current->signal;
- unsigned long signr = jobctl & JOBCTL_STOP_SIGMASK;
- unsigned long gstop = JOBCTL_STOP_PENDING | JOBCTL_STOP_CONSUME;
- if (task_set_jobctl_pending(task, signr | gstop)) {
- sig->group_stop_count++;
- }
- }
+ task_set_jobctl_pending(task, mask | JOBCTL_STOP_PENDING);
}
/*
};
/*
* Used for which event context the event is in.
- * NMI = 0
- * IRQ = 1
- * SOFTIRQ = 2
- * NORMAL = 3
+ * TRANSITION = 0
+ * NMI = 1
+ * IRQ = 2
+ * SOFTIRQ = 3
+ * NORMAL = 4
*
* See trace_recursive_lock() comment below for more details.
*/
enum {
+ RB_CTX_TRANSITION,
RB_CTX_NMI,
RB_CTX_IRQ,
RB_CTX_SOFTIRQ,
* a bit of overhead in something as critical as function tracing,
* we use a bitmask trick.
*
- * bit 0 = NMI context
- * bit 1 = IRQ context
- * bit 2 = SoftIRQ context
- * bit 3 = normal context.
+ * bit 1 = NMI context
+ * bit 2 = IRQ context
+ * bit 3 = SoftIRQ context
+ * bit 4 = normal context.
*
* This works because this is the order of contexts that can
* preempt other contexts. A SoftIRQ never preempts an IRQ
* The least significant bit can be cleared this way, and it
* just so happens that it is the same bit corresponding to
* the current context.
+ *
+ * Now the TRANSITION bit breaks the above slightly. The TRANSITION bit
+ * is set when a recursion is detected at the current context, and if
+ * the TRANSITION bit is already set, it will fail the recursion.
+ * This is needed because there's a lag between the changing of
+ * interrupt context and updating the preempt count. In this case,
+ * a false positive will be found. To handle this, one extra recursion
+ * is allowed, and this is done by the TRANSITION bit. If the TRANSITION
+ * bit is already set, then it is considered a recursion and the function
+ * ends. Otherwise, the TRANSITION bit is set, and that bit is returned.
+ *
+ * On the trace_recursive_unlock(), the TRANSITION bit will be the first
+ * to be cleared. Even if it wasn't the context that set it. That is,
+ * if an interrupt comes in while NORMAL bit is set and the ring buffer
+ * is called before preempt_count() is updated, since the check will
+ * be on the NORMAL bit, the TRANSITION bit will then be set. If an
+ * NMI then comes in, it will set the NMI bit, but when the NMI code
+ * does the trace_recursive_unlock() it will clear the TRANSTION bit
+ * and leave the NMI bit set. But this is fine, because the interrupt
+ * code that set the TRANSITION bit will then clear the NMI bit when it
+ * calls trace_recursive_unlock(). If another NMI comes in, it will
+ * set the TRANSITION bit and continue.
+ *
+ * Note: The TRANSITION bit only handles a single transition between context.
*/
static __always_inline int
bit = pc & NMI_MASK ? RB_CTX_NMI :
pc & HARDIRQ_MASK ? RB_CTX_IRQ : RB_CTX_SOFTIRQ;
- if (unlikely(val & (1 << (bit + cpu_buffer->nest))))
- return 1;
+ if (unlikely(val & (1 << (bit + cpu_buffer->nest)))) {
+ /*
+ * It is possible that this was called by transitioning
+ * between interrupt context, and preempt_count() has not
+ * been updated yet. In this case, use the TRANSITION bit.
+ */
+ bit = RB_CTX_TRANSITION;
+ if (val & (1 << (bit + cpu_buffer->nest)))
+ return 1;
+ }
val |= (1 << (bit + cpu_buffer->nest));
cpu_buffer->current_context = val;
cpu_buffer->current_context - (1 << cpu_buffer->nest);
}
-/* The recursive locking above uses 4 bits */
-#define NESTED_BITS 4
+/* The recursive locking above uses 5 bits */
+#define NESTED_BITS 5
/**
* ring_buffer_nest_start - Allow to trace while nested
/*
* If tracing is off, but we have triggers enabled
* we still need to look at the event data. Use the temp_buffer
- * to store the trace event for the tigger to use. It's recusive
+ * to store the trace event for the trigger to use. It's recursive
* safe and will not be recorded anywhere.
*/
if (!entry && trace_file->flags & EVENT_FILE_FL_TRIGGER_COND) {
stackidx = __this_cpu_inc_return(ftrace_stack_reserve) - 1;
/* This should never happen. If it does, yell once and skip */
- if (WARN_ON_ONCE(stackidx > FTRACE_KSTACK_NESTING))
+ if (WARN_ON_ONCE(stackidx >= FTRACE_KSTACK_NESTING))
goto out;
/*
/* Interrupts must see nesting incremented before we use the buffer */
barrier();
- return &buffer->buffer[buffer->nesting][0];
+ return &buffer->buffer[buffer->nesting - 1][0];
}
static void put_trace_buf(void)
* function is called to clear it.
*/
TRACE_GRAPH_NOTRACE_BIT,
+
+ /*
+ * When transitioning between context, the preempt_count() may
+ * not be correct. Allow for a single recursion to cover this case.
+ */
+ TRACE_TRANSITION_BIT,
};
#define trace_recursion_set(bit) do { (current)->trace_recursion |= (1<<(bit)); } while (0)
return 0;
bit = trace_get_context_bit() + start;
- if (unlikely(val & (1 << bit)))
- return -1;
+ if (unlikely(val & (1 << bit))) {
+ /*
+ * It could be that preempt_count has not been updated during
+ * a switch between contexts. Allow for a single recursion.
+ */
+ bit = TRACE_TRANSITION_BIT;
+ if (trace_recursion_test(bit))
+ return -1;
+ trace_recursion_set(bit);
+ barrier();
+ return bit + 1;
+ }
+
+ /* Normal check passed, clear the transition to allow it again */
+ trace_recursion_clear(TRACE_TRANSITION_BIT);
val |= 1 << bit;
current->trace_recursion = val;
barrier();
- return bit;
+ return bit + 1;
}
static __always_inline void trace_clear_recursion(int bit)
if (!bit)
return;
+ bit--;
bit = 1 << bit;
val &= ~bit;
{
struct synth_field *field;
const char *prefix = NULL, *field_type = argv[0], *field_name, *array;
- int len, ret = 0;
+ int len, ret = -ENOMEM;
struct seq_buf s;
ssize_t size;
len--;
field->name = kmemdup_nul(field_name, len, GFP_KERNEL);
- if (!field->name) {
- ret = -ENOMEM;
+ if (!field->name)
goto free;
- }
+
if (!is_good_name(field->name)) {
synth_err(SYNTH_ERR_BAD_NAME, errpos(field_name));
ret = -EINVAL;
len += strlen(prefix);
field->type = kzalloc(len, GFP_KERNEL);
- if (!field->type) {
- ret = -ENOMEM;
+ if (!field->type)
goto free;
- }
+
seq_buf_init(&s, field->type, len);
if (prefix)
seq_buf_puts(&s, prefix);
}
if (WARN_ON_ONCE(!seq_buf_buffer_left(&s)))
goto free;
+
s.buffer[s.len] = '\0';
size = synth_field_size(field->type);
len = sizeof("__data_loc ") + strlen(field->type) + 1;
type = kzalloc(len, GFP_KERNEL);
- if (!type) {
- ret = -ENOMEM;
+ if (!type)
goto free;
- }
seq_buf_init(&s, type, len);
seq_buf_puts(&s, "__data_loc ");
unregister_ftrace_function(&test_rec_probe);
ret = -1;
- if (trace_selftest_recursion_cnt != 1) {
- pr_cont("*callback not called once (%d)* ",
+ /*
+ * Recursion allows for transitions between context,
+ * and may call the callback twice.
+ */
+ if (trace_selftest_recursion_cnt != 1 &&
+ trace_selftest_recursion_cnt != 2) {
+ pr_cont("*callback not called once (or twice) (%d)* ",
trace_selftest_recursion_cnt);
goto out;
}
/* reduce OS noise */
local_irq_save(flags);
- local_irq_disable();
nsec = ktime_get_ns();
for (i = 0; i < 100; i++) {
nsec = ktime_get_ns() - nsec;
local_irq_restore(flags);
- local_irq_enable();
pr_info("crc32c: CRC_LE_BITS = %d\n", CRC_LE_BITS);
/* reduce OS noise */
local_irq_save(flags);
- local_irq_disable();
nsec = ktime_get_ns();
for (i = 0; i < 100; i++) {
nsec = ktime_get_ns() - nsec;
local_irq_restore(flags);
- local_irq_enable();
pr_info("crc32: CRC_LE_BITS = %d, CRC_BE BITS = %d\n",
CRC_LE_BITS, CRC_BE_BITS);
u64 words[2];
} *ptr1, *ptr2;
+ /* This test is specifically crafted for the generic mode. */
+ if (!IS_ENABLED(CONFIG_KASAN_GENERIC)) {
+ kunit_info(test, "CONFIG_KASAN_GENERIC required\n");
+ return;
+ }
+
ptr1 = kmalloc(sizeof(*ptr1) - 3, GFP_KERNEL);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr1);
kfree(ptr2);
}
+static void kmalloc_uaf_16(struct kunit *test)
+{
+ struct {
+ u64 words[2];
+ } *ptr1, *ptr2;
+
+ ptr1 = kmalloc(sizeof(*ptr1), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr1);
+
+ ptr2 = kmalloc(sizeof(*ptr2), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr2);
+ kfree(ptr2);
+
+ KUNIT_EXPECT_KASAN_FAIL(test, *ptr1 = *ptr2);
+ kfree(ptr1);
+}
+
static void kmalloc_oob_memset_2(struct kunit *test)
{
char *ptr;
volatile int i = 3;
char *p = &global_array[ARRAY_SIZE(global_array) + i];
+ /* Only generic mode instruments globals. */
+ if (!IS_ENABLED(CONFIG_KASAN_GENERIC)) {
+ kunit_info(test, "CONFIG_KASAN_GENERIC required");
+ return;
+ }
+
KUNIT_EXPECT_KASAN_FAIL(test, *(volatile char *)p);
}
char alloca_array[i];
char *p = alloca_array - 1;
+ /* Only generic mode instruments dynamic allocas. */
+ if (!IS_ENABLED(CONFIG_KASAN_GENERIC)) {
+ kunit_info(test, "CONFIG_KASAN_GENERIC required");
+ return;
+ }
+
if (!IS_ENABLED(CONFIG_KASAN_STACK)) {
kunit_info(test, "CONFIG_KASAN_STACK is not enabled");
return;
char alloca_array[i];
char *p = alloca_array + i;
+ /* Only generic mode instruments dynamic allocas. */
+ if (!IS_ENABLED(CONFIG_KASAN_GENERIC)) {
+ kunit_info(test, "CONFIG_KASAN_GENERIC required");
+ return;
+ }
+
if (!IS_ENABLED(CONFIG_KASAN_STACK)) {
kunit_info(test, "CONFIG_KASAN_STACK is not enabled");
return;
return;
}
+ if (OOB_TAG_OFF)
+ size = round_up(size, OOB_TAG_OFF);
+
ptr = kmalloc(size, GFP_KERNEL | __GFP_ZERO);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
return;
}
+ if (OOB_TAG_OFF)
+ size = round_up(size, OOB_TAG_OFF);
+
ptr = kmalloc(size, GFP_KERNEL | __GFP_ZERO);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
memset(arr, 0, sizeof(arr));
KUNIT_EXPECT_KASAN_FAIL(test, kasan_int_result = strnlen(ptr, 1));
}
-static void kasan_bitops(struct kunit *test)
+static void kasan_bitops_modify(struct kunit *test, int nr, void *addr)
+{
+ KUNIT_EXPECT_KASAN_FAIL(test, set_bit(nr, addr));
+ KUNIT_EXPECT_KASAN_FAIL(test, __set_bit(nr, addr));
+ KUNIT_EXPECT_KASAN_FAIL(test, clear_bit(nr, addr));
+ KUNIT_EXPECT_KASAN_FAIL(test, __clear_bit(nr, addr));
+ KUNIT_EXPECT_KASAN_FAIL(test, clear_bit_unlock(nr, addr));
+ KUNIT_EXPECT_KASAN_FAIL(test, __clear_bit_unlock(nr, addr));
+ KUNIT_EXPECT_KASAN_FAIL(test, change_bit(nr, addr));
+ KUNIT_EXPECT_KASAN_FAIL(test, __change_bit(nr, addr));
+}
+
+static void kasan_bitops_test_and_modify(struct kunit *test, int nr, void *addr)
+{
+ KUNIT_EXPECT_KASAN_FAIL(test, test_and_set_bit(nr, addr));
+ KUNIT_EXPECT_KASAN_FAIL(test, __test_and_set_bit(nr, addr));
+ KUNIT_EXPECT_KASAN_FAIL(test, test_and_set_bit_lock(nr, addr));
+ KUNIT_EXPECT_KASAN_FAIL(test, test_and_clear_bit(nr, addr));
+ KUNIT_EXPECT_KASAN_FAIL(test, __test_and_clear_bit(nr, addr));
+ KUNIT_EXPECT_KASAN_FAIL(test, test_and_change_bit(nr, addr));
+ KUNIT_EXPECT_KASAN_FAIL(test, __test_and_change_bit(nr, addr));
+ KUNIT_EXPECT_KASAN_FAIL(test, kasan_int_result = test_bit(nr, addr));
+
+#if defined(clear_bit_unlock_is_negative_byte)
+ KUNIT_EXPECT_KASAN_FAIL(test, kasan_int_result =
+ clear_bit_unlock_is_negative_byte(nr, addr));
+#endif
+}
+
+static void kasan_bitops_generic(struct kunit *test)
{
+ long *bits;
+
+ /* This test is specifically crafted for the generic mode. */
+ if (!IS_ENABLED(CONFIG_KASAN_GENERIC)) {
+ kunit_info(test, "CONFIG_KASAN_GENERIC required\n");
+ return;
+ }
+
/*
* Allocate 1 more byte, which causes kzalloc to round up to 16-bytes;
* this way we do not actually corrupt other memory.
*/
- long *bits = kzalloc(sizeof(*bits) + 1, GFP_KERNEL);
+ bits = kzalloc(sizeof(*bits) + 1, GFP_KERNEL);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, bits);
/*
* below accesses are still out-of-bounds, since bitops are defined to
* operate on the whole long the bit is in.
*/
- KUNIT_EXPECT_KASAN_FAIL(test, set_bit(BITS_PER_LONG, bits));
-
- KUNIT_EXPECT_KASAN_FAIL(test, __set_bit(BITS_PER_LONG, bits));
-
- KUNIT_EXPECT_KASAN_FAIL(test, clear_bit(BITS_PER_LONG, bits));
-
- KUNIT_EXPECT_KASAN_FAIL(test, __clear_bit(BITS_PER_LONG, bits));
-
- KUNIT_EXPECT_KASAN_FAIL(test, clear_bit_unlock(BITS_PER_LONG, bits));
-
- KUNIT_EXPECT_KASAN_FAIL(test, __clear_bit_unlock(BITS_PER_LONG, bits));
-
- KUNIT_EXPECT_KASAN_FAIL(test, change_bit(BITS_PER_LONG, bits));
-
- KUNIT_EXPECT_KASAN_FAIL(test, __change_bit(BITS_PER_LONG, bits));
+ kasan_bitops_modify(test, BITS_PER_LONG, bits);
/*
* Below calls try to access bit beyond allocated memory.
*/
- KUNIT_EXPECT_KASAN_FAIL(test,
- test_and_set_bit(BITS_PER_LONG + BITS_PER_BYTE, bits));
-
- KUNIT_EXPECT_KASAN_FAIL(test,
- __test_and_set_bit(BITS_PER_LONG + BITS_PER_BYTE, bits));
-
- KUNIT_EXPECT_KASAN_FAIL(test,
- test_and_set_bit_lock(BITS_PER_LONG + BITS_PER_BYTE, bits));
+ kasan_bitops_test_and_modify(test, BITS_PER_LONG + BITS_PER_BYTE, bits);
- KUNIT_EXPECT_KASAN_FAIL(test,
- test_and_clear_bit(BITS_PER_LONG + BITS_PER_BYTE, bits));
+ kfree(bits);
+}
- KUNIT_EXPECT_KASAN_FAIL(test,
- __test_and_clear_bit(BITS_PER_LONG + BITS_PER_BYTE, bits));
+static void kasan_bitops_tags(struct kunit *test)
+{
+ long *bits;
- KUNIT_EXPECT_KASAN_FAIL(test,
- test_and_change_bit(BITS_PER_LONG + BITS_PER_BYTE, bits));
+ /* This test is specifically crafted for the tag-based mode. */
+ if (IS_ENABLED(CONFIG_KASAN_GENERIC)) {
+ kunit_info(test, "CONFIG_KASAN_SW_TAGS required\n");
+ return;
+ }
- KUNIT_EXPECT_KASAN_FAIL(test,
- __test_and_change_bit(BITS_PER_LONG + BITS_PER_BYTE, bits));
+ /* Allocation size will be rounded to up granule size, which is 16. */
+ bits = kzalloc(sizeof(*bits), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, bits);
- KUNIT_EXPECT_KASAN_FAIL(test,
- kasan_int_result =
- test_bit(BITS_PER_LONG + BITS_PER_BYTE, bits));
+ /* Do the accesses past the 16 allocated bytes. */
+ kasan_bitops_modify(test, BITS_PER_LONG, &bits[1]);
+ kasan_bitops_test_and_modify(test, BITS_PER_LONG + BITS_PER_BYTE, &bits[1]);
-#if defined(clear_bit_unlock_is_negative_byte)
- KUNIT_EXPECT_KASAN_FAIL(test,
- kasan_int_result = clear_bit_unlock_is_negative_byte(
- BITS_PER_LONG + BITS_PER_BYTE, bits));
-#endif
kfree(bits);
}
KUNIT_CASE(kmalloc_oob_krealloc_more),
KUNIT_CASE(kmalloc_oob_krealloc_less),
KUNIT_CASE(kmalloc_oob_16),
+ KUNIT_CASE(kmalloc_uaf_16),
KUNIT_CASE(kmalloc_oob_in_memset),
KUNIT_CASE(kmalloc_oob_memset_2),
KUNIT_CASE(kmalloc_oob_memset_4),
KUNIT_CASE(kasan_memchr),
KUNIT_CASE(kasan_memcmp),
KUNIT_CASE(kasan_strings),
- KUNIT_CASE(kasan_bitops),
+ KUNIT_CASE(kasan_bitops_generic),
+ KUNIT_CASE(kasan_bitops_tags),
KUNIT_CASE(kmalloc_double_kzfree),
KUNIT_CASE(vmalloc_oob),
{}
}
del += t - f;
+ hugetlb_cgroup_uncharge_file_region(
+ resv, rg, t - f);
/* New entry for end of split region */
nrg->from = t;
/* Original entry is trimmed */
rg->to = f;
- hugetlb_cgroup_uncharge_file_region(
- resv, rg, nrg->to - nrg->from);
-
list_add(&nrg->link, &rg->link);
nrg = NULL;
break;
}
if (f <= rg->from) { /* Trim beginning of region */
- del += t - rg->from;
- rg->from = t;
-
hugetlb_cgroup_uncharge_file_region(resv, rg,
t - rg->from);
- } else { /* Trim end of region */
- del += rg->to - f;
- rg->to = f;
+ del += t - rg->from;
+ rg->from = t;
+ } else { /* Trim end of region */
hugetlb_cgroup_uncharge_file_region(resv, rg,
rg->to - f);
+
+ del += rg->to - f;
+ rg->to = f;
}
}
rsv_adjust = hugepage_subpool_put_pages(spool, 1);
hugetlb_acct_memory(h, -rsv_adjust);
+ if (deferred_reserve)
+ hugetlb_cgroup_uncharge_page_rsvd(hstate_index(h),
+ pages_per_huge_page(h), page);
}
return page;
(u64)memsw * PAGE_SIZE);
for (i = 0; i < ARRAY_SIZE(memcg1_stats); i++) {
+ unsigned long nr;
+
if (memcg1_stats[i] == MEMCG_SWAP && !do_memsw_account())
continue;
+ nr = memcg_page_state(memcg, memcg1_stats[i]);
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ if (memcg1_stats[i] == NR_ANON_THPS)
+ nr *= HPAGE_PMD_NR;
+#endif
seq_printf(m, "total_%s %llu\n", memcg1_stat_names[i],
- (u64)memcg_page_state(memcg, memcg1_stats[i]) *
- PAGE_SIZE);
+ (u64)nr * PAGE_SIZE);
}
for (i = 0; i < ARRAY_SIZE(memcg1_events); i++)
memcg->swappiness = mem_cgroup_swappiness(parent);
memcg->oom_kill_disable = parent->oom_kill_disable;
}
- if (parent && parent->use_hierarchy) {
+ if (!parent) {
+ page_counter_init(&memcg->memory, NULL);
+ page_counter_init(&memcg->swap, NULL);
+ page_counter_init(&memcg->kmem, NULL);
+ page_counter_init(&memcg->tcpmem, NULL);
+ } else if (parent->use_hierarchy) {
memcg->use_hierarchy = true;
page_counter_init(&memcg->memory, &parent->memory);
page_counter_init(&memcg->swap, &parent->swap);
page_counter_init(&memcg->kmem, &parent->kmem);
page_counter_init(&memcg->tcpmem, &parent->tcpmem);
} else {
- page_counter_init(&memcg->memory, NULL);
- page_counter_init(&memcg->swap, NULL);
- page_counter_init(&memcg->kmem, NULL);
- page_counter_init(&memcg->tcpmem, NULL);
+ page_counter_init(&memcg->memory, &root_mem_cgroup->memory);
+ page_counter_init(&memcg->swap, &root_mem_cgroup->swap);
+ page_counter_init(&memcg->kmem, &root_mem_cgroup->kmem);
+ page_counter_init(&memcg->tcpmem, &root_mem_cgroup->tcpmem);
/*
* Deeper hierachy with use_hierarchy == false doesn't make
* much sense so let cgroup subsystem know about this
unsigned long flags = qp->flags;
int ret;
bool has_unmovable = false;
- pte_t *pte;
+ pte_t *pte, *mapped_pte;
spinlock_t *ptl;
ptl = pmd_trans_huge_lock(pmd, vma);
if (pmd_trans_unstable(pmd))
return 0;
- pte = pte_offset_map_lock(walk->mm, pmd, addr, &ptl);
+ mapped_pte = pte = pte_offset_map_lock(walk->mm, pmd, addr, &ptl);
for (; addr != end; pte++, addr += PAGE_SIZE) {
if (!pte_present(*pte))
continue;
} else
break;
}
- pte_unmap_unlock(pte - 1, ptl);
+ pte_unmap_unlock(mapped_pte, ptl);
cond_resched();
if (has_unmovable)
DEFINE_STATIC_KEY_FALSE(devmap_managed_key);
EXPORT_SYMBOL(devmap_managed_key);
-static void devmap_managed_enable_put(void)
+static void devmap_managed_enable_put(struct dev_pagemap *pgmap)
{
- static_branch_dec(&devmap_managed_key);
+ if (pgmap->type == MEMORY_DEVICE_PRIVATE ||
+ pgmap->type == MEMORY_DEVICE_FS_DAX)
+ static_branch_dec(&devmap_managed_key);
}
-static int devmap_managed_enable_get(struct dev_pagemap *pgmap)
+static void devmap_managed_enable_get(struct dev_pagemap *pgmap)
{
- if (pgmap->type == MEMORY_DEVICE_PRIVATE &&
- (!pgmap->ops || !pgmap->ops->page_free)) {
- WARN(1, "Missing page_free method\n");
- return -EINVAL;
- }
-
- static_branch_inc(&devmap_managed_key);
- return 0;
+ if (pgmap->type == MEMORY_DEVICE_PRIVATE ||
+ pgmap->type == MEMORY_DEVICE_FS_DAX)
+ static_branch_inc(&devmap_managed_key);
}
#else
-static int devmap_managed_enable_get(struct dev_pagemap *pgmap)
+static void devmap_managed_enable_get(struct dev_pagemap *pgmap)
{
- return -EINVAL;
}
-static void devmap_managed_enable_put(void)
+static void devmap_managed_enable_put(struct dev_pagemap *pgmap)
{
}
#endif /* CONFIG_DEV_PAGEMAP_OPS */
pageunmap_range(pgmap, i);
WARN_ONCE(pgmap->altmap.alloc, "failed to free all reserved pages\n");
- devmap_managed_enable_put();
+ devmap_managed_enable_put(pgmap);
}
EXPORT_SYMBOL_GPL(memunmap_pages);
.pgprot = PAGE_KERNEL,
};
const int nr_range = pgmap->nr_range;
- bool need_devmap_managed = true;
int error, i;
if (WARN_ONCE(!nr_range, "nr_range must be specified\n"))
WARN(1, "Missing migrate_to_ram method\n");
return ERR_PTR(-EINVAL);
}
+ if (!pgmap->ops->page_free) {
+ WARN(1, "Missing page_free method\n");
+ return ERR_PTR(-EINVAL);
+ }
if (!pgmap->owner) {
WARN(1, "Missing owner\n");
return ERR_PTR(-EINVAL);
}
break;
case MEMORY_DEVICE_GENERIC:
- need_devmap_managed = false;
break;
case MEMORY_DEVICE_PCI_P2PDMA:
params.pgprot = pgprot_noncached(params.pgprot);
- need_devmap_managed = false;
break;
default:
WARN(1, "Invalid pgmap type %d\n", pgmap->type);
}
}
- if (need_devmap_managed) {
- error = devmap_managed_enable_get(pgmap);
- if (error)
- return ERR_PTR(error);
- }
+ devmap_managed_enable_get(pgmap);
/*
* Clear the pgmap nr_range as it will be incremented for each
}
EXPORT_SYMBOL(truncate_inode_pages_final);
-unsigned long __invalidate_mapping_pages(struct address_space *mapping,
+static unsigned long __invalidate_mapping_pages(struct address_space *mapping,
pgoff_t start, pgoff_t end, unsigned long *nr_pagevec)
{
pgoff_t indices[PAGEVEC_SIZE];
{
struct lec_state *state = seq->private;
- v = lec_get_idx(state, 1);
- *pos += !!PTR_ERR(v);
- return v;
+ ++*pos;
+ return lec_get_idx(state, 1);
}
static int lec_seq_show(struct seq_file *seq, void *v)
communication between CAN nodes via two defined CAN Identifiers.
As CAN frames can only transport a small amount of data bytes
(max. 8 bytes for 'classic' CAN and max. 64 bytes for CAN FD) this
- segmentation is needed to transport longer PDUs as needed e.g. for
- vehicle diagnosis (UDS, ISO 14229) or IP-over-CAN traffic.
+ segmentation is needed to transport longer Protocol Data Units (PDU)
+ as needed e.g. for vehicle diagnosis (UDS, ISO 14229) or IP-over-CAN
+ traffic.
This protocol driver implements data transfers according to
ISO 15765-2:2016 for 'classic' CAN and CAN FD frame types.
If you want to perform automotive vehicle diagnostic services (UDS),
static u8 padlen(u8 datalen)
{
- const u8 plen[] = {8, 8, 8, 8, 8, 8, 8, 8, 8, /* 0 - 8 */
- 12, 12, 12, 12, /* 9 - 12 */
- 16, 16, 16, 16, /* 13 - 16 */
- 20, 20, 20, 20, /* 17 - 20 */
- 24, 24, 24, 24, /* 21 - 24 */
- 32, 32, 32, 32, 32, 32, 32, 32, /* 25 - 32 */
- 48, 48, 48, 48, 48, 48, 48, 48, /* 33 - 40 */
- 48, 48, 48, 48, 48, 48, 48, 48}; /* 41 - 48 */
+ static const u8 plen[] = {
+ 8, 8, 8, 8, 8, 8, 8, 8, 8, /* 0 - 8 */
+ 12, 12, 12, 12, /* 9 - 12 */
+ 16, 16, 16, 16, /* 13 - 16 */
+ 20, 20, 20, 20, /* 17 - 20 */
+ 24, 24, 24, 24, /* 21 - 24 */
+ 32, 32, 32, 32, 32, 32, 32, 32, /* 25 - 32 */
+ 48, 48, 48, 48, 48, 48, 48, 48, /* 33 - 40 */
+ 48, 48, 48, 48, 48, 48, 48, 48 /* 41 - 48 */
+ };
if (datalen > 48)
return 64;
return 0;
}
- /* no creation of flow control frames */
- if (so->opt.flags & CAN_ISOTP_LISTEN_MODE)
- return 0;
-
/* perform blocksize handling, if enabled */
if (!so->rxfc.bs || ++so->rx.bs < so->rxfc.bs) {
/* start rx timeout watchdog */
return 0;
}
+ /* no creation of flow control frames */
+ if (so->opt.flags & CAN_ISOTP_LISTEN_MODE)
+ return 0;
+
/* we reached the specified blocksize so->rxfc.bs */
isotp_send_fc(sk, ae, ISOTP_FC_CTS);
return 0;
goto out_release_sock;
}
+ if (!(ndev->flags & IFF_UP)) {
+ dev_put(ndev);
+ ret = -ENETDOWN;
+ goto out_release_sock;
+ }
+
priv = j1939_netdev_start(ndev);
dev_put(ndev);
if (IS_ERR(priv)) {
*/
void can_remove_proc(struct net *net)
{
+ if (!net->can.proc_dir)
+ return;
+
if (net->can.pde_stats)
remove_proc_entry(CAN_PROC_STATS, net->can.proc_dir);
if (net->can.pde_rcvlist_sff)
remove_proc_entry(CAN_PROC_RCVLIST_SFF, net->can.proc_dir);
- if (net->can.proc_dir)
- remove_proc_entry("can", net->proc_net);
+ remove_proc_entry("can", net->proc_net);
}
ttl = ip4_dst_hoplimit(&rt->dst);
}
- if (!df && skb->protocol == htons(ETH_P_IP))
- df = inner_iph->frag_off & htons(IP_DF);
-
headroom += LL_RESERVED_SPACE(rt->dst.dev) + rt->dst.header_len;
if (headroom > dev->needed_headroom)
dev->needed_headroom = headroom;
#include <net/netfilter/nf_queue.h>
/* route_me_harder function, used by iptable_nat, iptable_mangle + ip_queue */
-int ip_route_me_harder(struct net *net, struct sk_buff *skb, unsigned int addr_type)
+int ip_route_me_harder(struct net *net, struct sock *sk, struct sk_buff *skb, unsigned int addr_type)
{
const struct iphdr *iph = ip_hdr(skb);
struct rtable *rt;
struct flowi4 fl4 = {};
__be32 saddr = iph->saddr;
- const struct sock *sk = skb_to_full_sk(skb);
- __u8 flags = sk ? inet_sk_flowi_flags(sk) : 0;
+ __u8 flags;
struct net_device *dev = skb_dst(skb)->dev;
unsigned int hh_len;
+ sk = sk_to_full_sk(sk);
+ flags = sk ? inet_sk_flowi_flags(sk) : 0;
+
if (addr_type == RTN_UNSPEC)
addr_type = inet_addr_type_dev_table(net, dev, saddr);
if (addr_type == RTN_LOCAL || addr_type == RTN_UNICAST)
iph->daddr != daddr ||
skb->mark != mark ||
iph->tos != tos) {
- err = ip_route_me_harder(state->net, skb, RTN_UNSPEC);
+ err = ip_route_me_harder(state->net, state->sk, skb, RTN_UNSPEC);
if (err < 0)
ret = NF_DROP_ERR(err);
}
ip4_dst_hoplimit(skb_dst(nskb)));
nf_reject_ip_tcphdr_put(nskb, oldskb, oth);
- if (ip_route_me_harder(net, nskb, RTN_UNSPEC))
+ if (ip_route_me_harder(net, nskb->sk, nskb, RTN_UNSPEC))
goto free_nskb;
niph = ip_hdr(nskb);
static struct xfrm_tunnel xfrm_tunnel_handler __read_mostly = {
.handler = xfrm_tunnel_rcv,
.err_handler = xfrm_tunnel_err,
- .priority = 3,
+ .priority = 4,
};
#if IS_ENABLED(CONFIG_IPV6)
static struct xfrm_tunnel xfrm64_tunnel_handler __read_mostly = {
.handler = xfrm_tunnel_rcv,
.err_handler = xfrm_tunnel_err,
- .priority = 2,
+ .priority = 3,
};
#endif
tp = skb_header_pointer(skb,
ptr+offsetof(struct icmp6hdr, icmp6_type),
sizeof(_type), &_type);
- if (!tp || !(*tp & ICMPV6_INFOMSG_MASK))
+
+ /* Based on RFC 8200, Section 4.5 Fragment Header, return
+ * false if this is a fragment packet with no icmp header info.
+ */
+ if (!tp && frag_off != 0)
+ return false;
+ else if (!tp || !(*tp & ICMPV6_INFOMSG_MASK))
return true;
}
return false;
if (max_headroom > dev->needed_headroom)
dev->needed_headroom = max_headroom;
+ skb_set_inner_ipproto(skb, proto);
+
err = ip6_tnl_encap(skb, t, &proto, fl6);
if (err)
return err;
ipv6_push_frag_opts(skb, &opt.ops, &proto);
}
- skb_set_inner_ipproto(skb, proto);
-
skb_push(skb, sizeof(struct ipv6hdr));
skb_reset_network_header(skb);
ipv6h = ipv6_hdr(skb);
#include <net/netfilter/ipv6/nf_defrag_ipv6.h>
#include "../bridge/br_private.h"
-int ip6_route_me_harder(struct net *net, struct sk_buff *skb)
+int ip6_route_me_harder(struct net *net, struct sock *sk_partial, struct sk_buff *skb)
{
const struct ipv6hdr *iph = ipv6_hdr(skb);
- struct sock *sk = sk_to_full_sk(skb->sk);
+ struct sock *sk = sk_to_full_sk(sk_partial);
unsigned int hh_len;
struct dst_entry *dst;
int strict = (ipv6_addr_type(&iph->daddr) &
if (!ipv6_addr_equal(&iph->daddr, &rt_info->daddr) ||
!ipv6_addr_equal(&iph->saddr, &rt_info->saddr) ||
skb->mark != rt_info->mark)
- return ip6_route_me_harder(entry->state.net, skb);
+ return ip6_route_me_harder(entry->state.net, entry->state.sk, skb);
}
return 0;
}
skb->mark != mark ||
ipv6_hdr(skb)->hop_limit != hop_limit ||
flowlabel != *((u_int32_t *)ipv6_hdr(skb)))) {
- err = ip6_route_me_harder(state->net, skb);
+ err = ip6_route_me_harder(state->net, state->sk, skb);
if (err < 0)
ret = NF_DROP_ERR(err);
}
#include <linux/skbuff.h>
#include <linux/slab.h>
#include <linux/export.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
#include <net/sock.h>
#include <net/snmp.h>
struct frag_queue *fq;
const struct ipv6hdr *hdr = ipv6_hdr(skb);
struct net *net = dev_net(skb_dst(skb)->dev);
- int iif;
+ __be16 frag_off;
+ int iif, offset;
+ u8 nexthdr;
if (IP6CB(skb)->flags & IP6SKB_FRAGMENTED)
goto fail_hdr;
return 1;
}
+ /* RFC 8200, Section 4.5 Fragment Header:
+ * If the first fragment does not include all headers through an
+ * Upper-Layer header, then that fragment should be discarded and
+ * an ICMP Parameter Problem, Code 3, message should be sent to
+ * the source of the fragment, with the Pointer field set to zero.
+ */
+ nexthdr = hdr->nexthdr;
+ offset = ipv6_skip_exthdr(skb, skb_transport_offset(skb), &nexthdr, &frag_off);
+ if (offset >= 0) {
+ /* Check some common protocols' header */
+ if (nexthdr == IPPROTO_TCP)
+ offset += sizeof(struct tcphdr);
+ else if (nexthdr == IPPROTO_UDP)
+ offset += sizeof(struct udphdr);
+ else if (nexthdr == IPPROTO_ICMPV6)
+ offset += sizeof(struct icmp6hdr);
+ else
+ offset += 1;
+
+ if (!(frag_off & htons(IP6_OFFSET)) && offset > skb->len) {
+ __IP6_INC_STATS(net, __in6_dev_get_safely(skb->dev),
+ IPSTATS_MIB_INHDRERRORS);
+ icmpv6_param_prob(skb, ICMPV6_HDR_INCOMP, 0);
+ return -1;
+ }
+ }
+
iif = skb->dev ? skb->dev->ifindex : 0;
fq = fq_find(net, fhdr->identification, hdr, iif);
if (fq) {
static struct xfrm6_tunnel xfrm6_tunnel_handler __read_mostly = {
.handler = xfrm6_tunnel_rcv,
.err_handler = xfrm6_tunnel_err,
- .priority = 2,
+ .priority = 3,
};
static struct xfrm6_tunnel xfrm46_tunnel_handler __read_mostly = {
.handler = xfrm6_tunnel_rcv,
.err_handler = xfrm6_tunnel_err,
- .priority = 2,
+ .priority = 3,
};
static int __net_init xfrm6_tunnel_net_init(struct net *net)
struct cfg80211_assoc_request *req)
{
bool is_6ghz = req->bss->channel->band == NL80211_BAND_6GHZ;
+ bool is_5ghz = req->bss->channel->band == NL80211_BAND_5GHZ;
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_bss *bss = (void *)req->bss->priv;
if (vht_ie && vht_ie[1] >= sizeof(struct ieee80211_vht_cap))
memcpy(&assoc_data->ap_vht_cap, vht_ie + 2,
sizeof(struct ieee80211_vht_cap));
- else if (!is_6ghz)
+ else if (is_5ghz)
ifmgd->flags |= IEEE80211_STA_DISABLE_VHT |
IEEE80211_STA_DISABLE_HE;
rcu_read_unlock();
*/
void sta_info_free(struct ieee80211_local *local, struct sta_info *sta)
{
+ /*
+ * If we had used sta_info_pre_move_state() then we might not
+ * have gone through the state transitions down again, so do
+ * it here now (and warn if it's inserted).
+ *
+ * This will clear state such as fast TX/RX that may have been
+ * allocated during state transitions.
+ */
+ while (sta->sta_state > IEEE80211_STA_NONE) {
+ int ret;
+
+ WARN_ON_ONCE(test_sta_flag(sta, WLAN_STA_INSERTED));
+
+ ret = sta_info_move_state(sta, sta->sta_state - 1);
+ if (WARN_ONCE(ret, "sta_info_move_state() returned %d\n", ret))
+ break;
+ }
+
if (sta->rate_ctrl)
rate_control_free_sta(sta);
void sta_info_stop(struct ieee80211_local *local);
/**
- * sta_info_flush - flush matching STA entries from the STA table
+ * __sta_info_flush - flush matching STA entries from the STA table
*
* Returns the number of removed STA entries.
*
*/
int __sta_info_flush(struct ieee80211_sub_if_data *sdata, bool vlans);
+/**
+ * sta_info_flush - flush matching STA entries from the STA table
+ *
+ * Returns the number of removed STA entries.
+ *
+ * @sdata: sdata to remove all stations from
+ */
static inline int sta_info_flush(struct ieee80211_sub_if_data *sdata)
{
return __sta_info_flush(sdata, false);
/* device xmit handlers */
+enum ieee80211_encrypt {
+ ENCRYPT_NO,
+ ENCRYPT_MGMT,
+ ENCRYPT_DATA,
+};
+
static int ieee80211_skb_resize(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb,
- int head_need, bool may_encrypt)
+ int head_need,
+ enum ieee80211_encrypt encrypt)
{
struct ieee80211_local *local = sdata->local;
- struct ieee80211_hdr *hdr;
bool enc_tailroom;
int tail_need = 0;
- hdr = (struct ieee80211_hdr *) skb->data;
- enc_tailroom = may_encrypt &&
- (sdata->crypto_tx_tailroom_needed_cnt ||
- ieee80211_is_mgmt(hdr->frame_control));
+ enc_tailroom = encrypt == ENCRYPT_MGMT ||
+ (encrypt == ENCRYPT_DATA &&
+ sdata->crypto_tx_tailroom_needed_cnt);
if (enc_tailroom) {
tail_need = IEEE80211_ENCRYPT_TAILROOM;
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- struct ieee80211_hdr *hdr;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
int headroom;
- bool may_encrypt;
+ enum ieee80211_encrypt encrypt;
- may_encrypt = !(info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT);
+ if (info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT)
+ encrypt = ENCRYPT_NO;
+ else if (ieee80211_is_mgmt(hdr->frame_control))
+ encrypt = ENCRYPT_MGMT;
+ else
+ encrypt = ENCRYPT_DATA;
headroom = local->tx_headroom;
- if (may_encrypt)
+ if (encrypt != ENCRYPT_NO)
headroom += sdata->encrypt_headroom;
headroom -= skb_headroom(skb);
headroom = max_t(int, 0, headroom);
- if (ieee80211_skb_resize(sdata, skb, headroom, may_encrypt)) {
+ if (ieee80211_skb_resize(sdata, skb, headroom, encrypt)) {
ieee80211_free_txskb(&local->hw, skb);
return;
}
+ /* reload after potential resize */
hdr = (struct ieee80211_hdr *) skb->data;
info->control.vif = &sdata->vif;
head_need += sdata->encrypt_headroom;
head_need += local->tx_headroom;
head_need = max_t(int, 0, head_need);
- if (ieee80211_skb_resize(sdata, skb, head_need, true)) {
+ if (ieee80211_skb_resize(sdata, skb, head_need, ENCRYPT_DATA)) {
ieee80211_free_txskb(&local->hw, skb);
skb = NULL;
return ERR_PTR(-ENOMEM);
if (unlikely(ieee80211_skb_resize(sdata, skb,
max_t(int, extra_head + hw_headroom -
skb_headroom(skb), 0),
- false))) {
+ ENCRYPT_NO))) {
kfree_skb(skb);
return true;
}
tx.skb = skb;
tx.sdata = vif_to_sdata(info->control.vif);
- if (txq->sta && !(info->flags & IEEE80211_TX_CTL_INJECTED)) {
+ if (txq->sta) {
tx.sta = container_of(txq->sta, struct sta_info, sta);
/*
* Drop unicast frames to unauthorised stations unless they are
- * EAPOL frames from the local station.
+ * injected frames or EAPOL frames from the local station.
*/
- if (unlikely(ieee80211_is_data(hdr->frame_control) &&
+ if (unlikely(!(info->flags & IEEE80211_TX_CTL_INJECTED) &&
+ ieee80211_is_data(hdr->frame_control) &&
!ieee80211_vif_is_mesh(&tx.sdata->vif) &&
tx.sdata->vif.type != NL80211_IFTYPE_OCB &&
!is_multicast_ether_addr(hdr->addr1) &&
{
struct mptcp_sock *ret = NULL;
struct hlist_nulls_node *pos;
- int slot, num;
+ int slot, num = 0;
for (slot = *s_slot; slot <= token_mask; *s_num = 0, slot++) {
struct token_bucket *bucket = &token_hash[slot];
if (SET_WITH_COUNTER(set)) {
struct ip_set_counter *counter = ext_counter(data, set);
+ ip_set_update_counter(counter, ext, flags);
+
if (flags & IPSET_FLAG_MATCH_COUNTERS &&
!(ip_set_match_counter(ip_set_get_packets(counter),
mext->packets, mext->packets_op) &&
ip_set_match_counter(ip_set_get_bytes(counter),
mext->bytes, mext->bytes_op)))
return false;
- ip_set_update_counter(counter, ext, flags);
}
if (SET_WITH_SKBINFO(set))
ip_set_get_skbinfo(ext_skbinfo(data, set),
struct dst_entry *dst = skb_dst(skb);
if (dst->dev && !(dst->dev->flags & IFF_LOOPBACK) &&
- ip6_route_me_harder(ipvs->net, skb) != 0)
+ ip6_route_me_harder(ipvs->net, skb->sk, skb) != 0)
return 1;
} else
#endif
if (!(skb_rtable(skb)->rt_flags & RTCF_LOCAL) &&
- ip_route_me_harder(ipvs->net, skb, RTN_LOCAL) != 0)
+ ip_route_me_harder(ipvs->net, skb->sk, skb, RTN_LOCAL) != 0)
return 1;
return 0;
if (ct->tuplehash[dir].tuple.dst.u3.ip !=
ct->tuplehash[!dir].tuple.src.u3.ip) {
- err = ip_route_me_harder(state->net, skb, RTN_UNSPEC);
+ err = ip_route_me_harder(state->net, state->sk, skb, RTN_UNSPEC);
if (err < 0)
ret = NF_DROP_ERR(err);
}
if (!nf_inet_addr_cmp(&ct->tuplehash[dir].tuple.dst.u3,
&ct->tuplehash[!dir].tuple.src.u3)) {
- err = nf_ip6_route_me_harder(state->net, skb);
+ err = nf_ip6_route_me_harder(state->net, state->sk, skb);
if (err < 0)
ret = NF_DROP_ERR(err);
}
skb_dst_set_noref(nskb, skb_dst(skb));
nskb->protocol = htons(ETH_P_IP);
- if (ip_route_me_harder(net, nskb, RTN_UNSPEC))
+ if (ip_route_me_harder(net, nskb->sk, nskb, RTN_UNSPEC))
goto free_nskb;
if (nfct) {
GFP_KERNEL);
kfree(buf);
- if (ctx->report &&
+ if (!ctx->report &&
!nfnetlink_has_listeners(ctx->net, NFNLGRP_NFTABLES))
return;
audit_log_nfcfg("?:0;?:0", 0, net->nft.base_seq,
AUDIT_NFT_OP_GEN_REGISTER, GFP_KERNEL);
- if (nlmsg_report(nlh) &&
+ if (!nlmsg_report(nlh) &&
!nfnetlink_has_listeners(net, NFNLGRP_NFTABLES))
return;
kfree(trans);
}
-static int __nf_tables_abort(struct net *net, bool autoload)
+static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
{
struct nft_trans *trans, *next;
struct nft_trans_elem *te;
struct nft_hook *hook;
+ if (action == NFNL_ABORT_VALIDATE &&
+ nf_tables_validate(net) < 0)
+ return -EAGAIN;
+
list_for_each_entry_safe_reverse(trans, next, &net->nft.commit_list,
list) {
switch (trans->msg_type) {
nf_tables_abort_release(trans);
}
- if (autoload)
+ if (action == NFNL_ABORT_AUTOLOAD)
nf_tables_module_autoload(net);
else
nf_tables_module_autoload_cleanup(net);
nft_validate_state_update(net, NFT_VALIDATE_SKIP);
}
-static int nf_tables_abort(struct net *net, struct sk_buff *skb, bool autoload)
+static int nf_tables_abort(struct net *net, struct sk_buff *skb,
+ enum nfnl_abort_action action)
{
- int ret = __nf_tables_abort(net, autoload);
+ int ret = __nf_tables_abort(net, action);
mutex_unlock(&net->nft.commit_mutex);
{
mutex_lock(&net->nft.commit_mutex);
if (!list_empty(&net->nft.commit_list))
- __nf_tables_abort(net, false);
+ __nf_tables_abort(net, NFNL_ABORT_NONE);
__nft_release_tables(net);
mutex_unlock(&net->nft.commit_mutex);
WARN_ON_ONCE(!list_empty(&net->nft.tables));
return netlink_ack(skb, nlh, -EINVAL, NULL);
replay:
status = 0;
-
+replay_abort:
skb = netlink_skb_clone(oskb, GFP_KERNEL);
if (!skb)
return netlink_ack(oskb, nlh, -ENOMEM, NULL);
}
done:
if (status & NFNL_BATCH_REPLAY) {
- ss->abort(net, oskb, true);
+ ss->abort(net, oskb, NFNL_ABORT_AUTOLOAD);
nfnl_err_reset(&err_list);
kfree_skb(skb);
module_put(ss->owner);
status |= NFNL_BATCH_REPLAY;
goto done;
} else if (err) {
- ss->abort(net, oskb, false);
+ ss->abort(net, oskb, NFNL_ABORT_NONE);
netlink_ack(oskb, nlmsg_hdr(oskb), err, NULL);
}
} else {
- ss->abort(net, oskb, false);
+ enum nfnl_abort_action abort_action;
+
+ if (status & NFNL_BATCH_FAILURE)
+ abort_action = NFNL_ABORT_NONE;
+ else
+ abort_action = NFNL_ABORT_VALIDATE;
+
+ err = ss->abort(net, oskb, abort_action);
+ if (err == -EAGAIN) {
+ nfnl_err_reset(&err_list);
+ kfree_skb(skb);
+ module_put(ss->owner);
+ status |= NFNL_BATCH_FAILURE;
+ goto replay_abort;
+ }
}
if (ss->cleanup)
ss->cleanup(net);
iph->daddr != daddr ||
skb->mark != mark ||
iph->tos != tos) {
- err = ip_route_me_harder(state->net, skb, RTN_UNSPEC);
+ err = ip_route_me_harder(state->net, state->sk, skb, RTN_UNSPEC);
if (err < 0)
ret = NF_DROP_ERR(err);
}
skb->mark != mark ||
ipv6_hdr(skb)->hop_limit != hop_limit ||
flowlabel != *((u32 *)ipv6_hdr(skb)))) {
- err = nf_ip6_route_me_harder(state->net, skb);
+ err = nf_ip6_route_me_harder(state->net, state->sk, skb);
if (err < 0)
ret = NF_DROP_ERR(err);
}
skb->mark == rt_info->mark &&
iph->daddr == rt_info->daddr &&
iph->saddr == rt_info->saddr))
- return ip_route_me_harder(entry->state.net, skb,
- RTN_UNSPEC);
+ return ip_route_me_harder(entry->state.net, entry->state.sk,
+ skb, RTN_UNSPEC);
}
#endif
return 0;
parms.port_no = OVSP_LOCAL;
parms.upcall_portids = a[OVS_DP_ATTR_UPCALL_PID];
- err = ovs_dp_change(dp, a);
- if (err)
- goto err_destroy_meters;
-
/* So far only local changes have been made, now need the lock. */
ovs_lock();
+ err = ovs_dp_change(dp, a);
+ if (err)
+ goto err_unlock_and_destroy_meters;
+
vport = new_vport(&parms);
if (IS_ERR(vport)) {
err = PTR_ERR(vport);
ovs_dp_reset_user_features(skb, info);
}
- ovs_unlock();
- goto err_destroy_meters;
+ goto err_unlock_and_destroy_meters;
}
err = ovs_dp_cmd_fill_info(dp, reply, info->snd_portid,
ovs_notify(&dp_datapath_genl_family, reply, info);
return 0;
-err_destroy_meters:
+err_unlock_and_destroy_meters:
+ ovs_unlock();
ovs_meters_exit(dp);
err_destroy_ports:
kfree(dp->ports);
}
int ovs_flow_tbl_masks_cache_resize(struct flow_table *table, u32 size)
{
- struct mask_cache *mc = rcu_dereference(table->mask_cache);
+ struct mask_cache *mc = rcu_dereference_ovsl(table->mask_cache);
struct mask_cache *new;
if (size == mc->cache_size)
break;
case SCTP_CMD_INIT_FAILED:
- sctp_cmd_init_failed(commands, asoc, cmd->obj.u32);
+ sctp_cmd_init_failed(commands, asoc, cmd->obj.u16);
break;
case SCTP_CMD_ASSOC_FAILED:
sctp_cmd_assoc_failed(commands, asoc, event_type,
- subtype, chunk, cmd->obj.u32);
+ subtype, chunk, cmd->obj.u16);
break;
case SCTP_CMD_INIT_COUNTER_INC:
}
EXPORT_SYMBOL(cfg80211_stop_iface);
-void cfg80211_init_wdev(struct cfg80211_registered_device *rdev,
- struct wireless_dev *wdev)
+void cfg80211_init_wdev(struct wireless_dev *wdev)
{
mutex_init(&wdev->mtx);
INIT_LIST_HEAD(&wdev->event_list);
spin_lock_init(&wdev->pmsr_lock);
INIT_WORK(&wdev->pmsr_free_wk, cfg80211_pmsr_free_wk);
+#ifdef CONFIG_CFG80211_WEXT
+ wdev->wext.default_key = -1;
+ wdev->wext.default_mgmt_key = -1;
+ wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
+#endif
+
+ if (wdev->wiphy->flags & WIPHY_FLAG_PS_ON_BY_DEFAULT)
+ wdev->ps = true;
+ else
+ wdev->ps = false;
+ /* allow mac80211 to determine the timeout */
+ wdev->ps_timeout = -1;
+
+ if ((wdev->iftype == NL80211_IFTYPE_STATION ||
+ wdev->iftype == NL80211_IFTYPE_P2P_CLIENT ||
+ wdev->iftype == NL80211_IFTYPE_ADHOC) && !wdev->use_4addr)
+ wdev->netdev->priv_flags |= IFF_DONT_BRIDGE;
+
+ INIT_WORK(&wdev->disconnect_wk, cfg80211_autodisconnect_wk);
+}
+
+void cfg80211_register_wdev(struct cfg80211_registered_device *rdev,
+ struct wireless_dev *wdev)
+{
/*
* We get here also when the interface changes network namespaces,
* as it's registered into the new one, but we don't want it to
switch (state) {
case NETDEV_POST_INIT:
SET_NETDEV_DEVTYPE(dev, &wiphy_type);
+ wdev->netdev = dev;
+ /* can only change netns with wiphy */
+ dev->features |= NETIF_F_NETNS_LOCAL;
+
+ cfg80211_init_wdev(wdev);
break;
case NETDEV_REGISTER:
/*
* called within code protected by it when interfaces
* are added with nl80211.
*/
- /* can only change netns with wiphy */
- dev->features |= NETIF_F_NETNS_LOCAL;
-
if (sysfs_create_link(&dev->dev.kobj, &rdev->wiphy.dev.kobj,
"phy80211")) {
pr_err("failed to add phy80211 symlink to netdev!\n");
}
- wdev->netdev = dev;
-#ifdef CONFIG_CFG80211_WEXT
- wdev->wext.default_key = -1;
- wdev->wext.default_mgmt_key = -1;
- wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
-#endif
-
- if (wdev->wiphy->flags & WIPHY_FLAG_PS_ON_BY_DEFAULT)
- wdev->ps = true;
- else
- wdev->ps = false;
- /* allow mac80211 to determine the timeout */
- wdev->ps_timeout = -1;
-
- if ((wdev->iftype == NL80211_IFTYPE_STATION ||
- wdev->iftype == NL80211_IFTYPE_P2P_CLIENT ||
- wdev->iftype == NL80211_IFTYPE_ADHOC) && !wdev->use_4addr)
- dev->priv_flags |= IFF_DONT_BRIDGE;
-
- INIT_WORK(&wdev->disconnect_wk, cfg80211_autodisconnect_wk);
- cfg80211_init_wdev(rdev, wdev);
+ cfg80211_register_wdev(rdev, wdev);
break;
case NETDEV_GOING_DOWN:
cfg80211_leave(rdev, wdev);
int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
struct net *net);
-void cfg80211_init_wdev(struct cfg80211_registered_device *rdev,
- struct wireless_dev *wdev);
+void cfg80211_init_wdev(struct wireless_dev *wdev);
+void cfg80211_register_wdev(struct cfg80211_registered_device *rdev,
+ struct wireless_dev *wdev);
static inline void wdev_lock(struct wireless_dev *wdev)
__acquires(wdev)
* P2P Device and NAN do not have a netdev, so don't go
* through the netdev notifier and must be added here
*/
- cfg80211_init_wdev(rdev, wdev);
+ cfg80211_init_wdev(wdev);
+ cfg80211_register_wdev(rdev, wdev);
break;
default:
break;
power_rule = ®_rule->power_rule;
if (reg_rule->flags & NL80211_RRF_AUTO_BW)
- snprintf(bw, sizeof(bw), "%d KHz, %d KHz AUTO",
+ snprintf(bw, sizeof(bw), "%d KHz, %u KHz AUTO",
freq_range->max_bandwidth_khz,
reg_get_max_bandwidth(rd, reg_rule));
else
.handler = xfrmi6_rcv_tunnel,
.cb_handler = xfrmi_rcv_cb,
.err_handler = xfrmi6_err,
- .priority = -1,
+ .priority = 2,
};
static struct xfrm6_tunnel xfrmi_ip6ip_handler __read_mostly = {
.handler = xfrmi6_rcv_tunnel,
.cb_handler = xfrmi_rcv_cb,
.err_handler = xfrmi6_err,
- .priority = -1,
+ .priority = 2,
};
#endif
.handler = xfrmi4_rcv_tunnel,
.cb_handler = xfrmi_rcv_cb,
.err_handler = xfrmi4_err,
- .priority = -1,
+ .priority = 3,
};
static struct xfrm_tunnel xfrmi_ipip6_handler __read_mostly = {
.handler = xfrmi4_rcv_tunnel,
.cb_handler = xfrmi_rcv_cb,
.err_handler = xfrmi4_err,
- .priority = -1,
+ .priority = 2,
};
#endif
int err = -ENOENT;
__be32 minspi = htonl(low);
__be32 maxspi = htonl(high);
+ __be32 newspi = 0;
u32 mark = x->mark.v & x->mark.m;
spin_lock_bh(&x->lock);
xfrm_state_put(x0);
goto unlock;
}
- x->id.spi = minspi;
+ newspi = minspi;
} else {
u32 spi = 0;
for (h = 0; h < high-low+1; h++) {
spi = low + prandom_u32()%(high-low+1);
x0 = xfrm_state_lookup(net, mark, &x->id.daddr, htonl(spi), x->id.proto, x->props.family);
if (x0 == NULL) {
- x->id.spi = htonl(spi);
+ newspi = htonl(spi);
break;
}
xfrm_state_put(x0);
}
}
- if (x->id.spi) {
+ if (newspi) {
spin_lock_bh(&net->xfrm.xfrm_state_lock);
+ x->id.spi = newspi;
h = xfrm_spi_hash(net, &x->id.daddr, x->id.spi, x->id.proto, x->props.family);
hlist_add_head_rcu(&x->byspi, net->xfrm.state_byspi + h);
spin_unlock_bh(&net->xfrm.xfrm_state_lock);
print "\n\n.. c:type:: " . $name . "\n\n";
} else {
my $name = $args{'struct'};
- print "\n\n.. c:struct:: " . $name . "\n\n";
+ if ($args{'type'} eq 'union') {
+ print "\n\n.. c:union:: " . $name . "\n\n";
+ } else {
+ print "\n\n.. c:struct:: " . $name . "\n\n";
+ }
}
print_lineno($declaration_start_line);
$lineprefix = " ";
}
}
+my $typedef_type = qr { ((?:\s+[\w\*]+){1,8})\s* }x;
+my $typedef_ident = qr { \*?\s*(\w\S+)\s* }x;
+my $typedef_args = qr { \s*\((.*)\); }x;
+
+my $typedef1 = qr { typedef$typedef_type\($typedef_ident\)$typedef_args }x;
+my $typedef2 = qr { typedef$typedef_type$typedef_ident$typedef_args }x;
+
sub dump_typedef($$) {
my $x = shift;
my $file = shift;
$x =~ s@/\*.*?\*/@@gos; # strip comments.
- # Parse function prototypes
- if ($x =~ /typedef\s+(\w+)\s*\(\*\s*(\w\S+)\s*\)\s*\((.*)\);/ ||
- $x =~ /typedef\s+(\w+)\s*(\w\S+)\s*\s*\((.*)\);/) {
-
- # Function typedefs
+ # Parse function typedef prototypes
+ if ($x =~ $typedef1 || $x =~ $typedef2) {
$return_type = $1;
$declaration_name = $2;
my $args = $3;
+ $return_type =~ s/^\s+//;
create_parameterlist($args, ',', $file, $declaration_name);
struct kvm_arch_memory_slot {
};
+/*
+ * PMU filter structure. Describe a range of events with a particular
+ * action. To be used with KVM_ARM_VCPU_PMU_V3_FILTER.
+ */
+struct kvm_pmu_event_filter {
+ __u16 base_event;
+ __u16 nevents;
+
+#define KVM_PMU_EVENT_ALLOW 0
+#define KVM_PMU_EVENT_DENY 1
+
+ __u8 action;
+ __u8 pad[3];
+};
+
/* for KVM_GET/SET_VCPU_EVENTS */
struct kvm_vcpu_events {
struct {
#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_NOT_AVAIL 0
#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_AVAIL 1
#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_NOT_REQUIRED 2
+
+/*
+ * Only two states can be presented by the host kernel:
+ * - NOT_REQUIRED: the guest doesn't need to do anything
+ * - NOT_AVAIL: the guest isn't mitigated (it can still use SSBS if available)
+ *
+ * All the other values are deprecated. The host still accepts all
+ * values (they are ABI), but will narrow them to the above two.
+ */
#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2 KVM_REG_ARM_FW_REG(2)
#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_AVAIL 0
#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_UNKNOWN 1
#define KVM_ARM_VCPU_PMU_V3_CTRL 0
#define KVM_ARM_VCPU_PMU_V3_IRQ 0
#define KVM_ARM_VCPU_PMU_V3_INIT 1
+#define KVM_ARM_VCPU_PMU_V3_FILTER 2
#define KVM_ARM_VCPU_TIMER_CTRL 1
#define KVM_ARM_VCPU_TIMER_IRQ_VTIMER 0
#define KVM_ARM_VCPU_TIMER_IRQ_PTIMER 1
{ 0x13, "SIGP conditional emergency signal" }, \
{ 0x15, "SIGP sense running" }, \
{ 0x16, "SIGP set multithreading"}, \
- { 0x17, "SIGP store additional status ait address"}
+ { 0x17, "SIGP store additional status at address"}
#define icpt_prog_codes \
{ 0x0001, "Prog Operation" }, \
#define X86_FEATURE_SYSCALL32 ( 3*32+14) /* "" syscall in IA32 userspace */
#define X86_FEATURE_SYSENTER32 ( 3*32+15) /* "" sysenter in IA32 userspace */
#define X86_FEATURE_REP_GOOD ( 3*32+16) /* REP microcode works well */
-/* free ( 3*32+17) */
+#define X86_FEATURE_SME_COHERENT ( 3*32+17) /* "" AMD hardware-enforced cache coherency */
#define X86_FEATURE_LFENCE_RDTSC ( 3*32+18) /* "" LFENCE synchronizes RDTSC */
#define X86_FEATURE_ACC_POWER ( 3*32+19) /* AMD Accumulated Power Mechanism */
#define X86_FEATURE_NOPL ( 3*32+20) /* The NOPL (0F 1F) instructions */
#define X86_FEATURE_EPT_AD ( 8*32+17) /* Intel Extended Page Table access-dirty bit */
#define X86_FEATURE_VMCALL ( 8*32+18) /* "" Hypervisor supports the VMCALL instruction */
#define X86_FEATURE_VMW_VMMCALL ( 8*32+19) /* "" VMware prefers VMMCALL hypercall instruction */
+#define X86_FEATURE_SEV_ES ( 8*32+20) /* AMD Secure Encrypted Virtualization - Encrypted State */
/* Intel-defined CPU features, CPUID level 0x00000007:0 (EBX), word 9 */
#define X86_FEATURE_FSGSBASE ( 9*32+ 0) /* RDFSBASE, WRFSBASE, RDGSBASE, WRGSBASE instructions*/
#define X86_FEATURE_FENCE_SWAPGS_USER (11*32+ 4) /* "" LFENCE in user entry SWAPGS path */
#define X86_FEATURE_FENCE_SWAPGS_KERNEL (11*32+ 5) /* "" LFENCE in kernel entry SWAPGS path */
#define X86_FEATURE_SPLIT_LOCK_DETECT (11*32+ 6) /* #AC for split lock */
+#define X86_FEATURE_PER_THREAD_MBA (11*32+ 7) /* "" Per-thread Memory Bandwidth Allocation */
/* Intel-defined CPU features, CPUID level 0x00000007:1 (EAX), word 12 */
#define X86_FEATURE_AVX512_BF16 (12*32+ 5) /* AVX512 BFLOAT16 instructions */
#define X86_FEATURE_CLDEMOTE (16*32+25) /* CLDEMOTE instruction */
#define X86_FEATURE_MOVDIRI (16*32+27) /* MOVDIRI instruction */
#define X86_FEATURE_MOVDIR64B (16*32+28) /* MOVDIR64B instruction */
+#define X86_FEATURE_ENQCMD (16*32+29) /* ENQCMD and ENQCMDS instructions */
/* AMD-defined CPU features, CPUID level 0x80000007 (EBX), word 17 */
#define X86_FEATURE_OVERFLOW_RECOV (17*32+ 0) /* MCA overflow recovery support */
#define X86_FEATURE_MD_CLEAR (18*32+10) /* VERW clears CPU buffers */
#define X86_FEATURE_TSX_FORCE_ABORT (18*32+13) /* "" TSX_FORCE_ABORT */
#define X86_FEATURE_SERIALIZE (18*32+14) /* SERIALIZE instruction */
+#define X86_FEATURE_TSXLDTRK (18*32+16) /* TSX Suspend Load Address Tracking */
#define X86_FEATURE_PCONFIG (18*32+18) /* Intel PCONFIG */
#define X86_FEATURE_ARCH_LBR (18*32+19) /* Intel ARCH LBR */
#define X86_FEATURE_SPEC_CTRL (18*32+26) /* "" Speculation Control (IBRS + IBPB) */
# define DISABLE_PTI (1 << (X86_FEATURE_PTI & 31))
#endif
+#ifdef CONFIG_IOMMU_SUPPORT
+# define DISABLE_ENQCMD 0
+#else
+# define DISABLE_ENQCMD (1 << (X86_FEATURE_ENQCMD & 31))
+#endif
+
/*
* Make sure to add features to the correct mask
*/
#define DISABLED_MASK13 0
#define DISABLED_MASK14 0
#define DISABLED_MASK15 0
-#define DISABLED_MASK16 (DISABLE_PKU|DISABLE_OSPKE|DISABLE_LA57|DISABLE_UMIP)
+#define DISABLED_MASK16 (DISABLE_PKU|DISABLE_OSPKE|DISABLE_LA57|DISABLE_UMIP| \
+ DISABLE_ENQCMD)
#define DISABLED_MASK17 0
#define DISABLED_MASK18 0
#define DISABLED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 19)
#define MSR_IA32_LASTINTFROMIP 0x000001dd
#define MSR_IA32_LASTINTTOIP 0x000001de
+#define MSR_IA32_PASID 0x00000d93
+#define MSR_IA32_PASID_VALID BIT_ULL(31)
+
/* DEBUGCTLMSR bits (others vary by model): */
#define DEBUGCTLMSR_LBR (1UL << 0) /* last branch recording */
#define DEBUGCTLMSR_BTF_SHIFT 1
#define MSR_AMD64_IBSOP_REG_MASK ((1UL<<MSR_AMD64_IBSOP_REG_COUNT)-1)
#define MSR_AMD64_IBSCTL 0xc001103a
#define MSR_AMD64_IBSBRTARGET 0xc001103b
+#define MSR_AMD64_ICIBSEXTDCTL 0xc001103c
#define MSR_AMD64_IBSOPDATA4 0xc001103d
#define MSR_AMD64_IBS_REG_COUNT_MAX 8 /* includes MSR_AMD64_IBSBRTARGET */
+#define MSR_AMD64_SEV_ES_GHCB 0xc0010130
#define MSR_AMD64_SEV 0xc0010131
#define MSR_AMD64_SEV_ENABLED_BIT 0
+#define MSR_AMD64_SEV_ES_ENABLED_BIT 1
#define MSR_AMD64_SEV_ENABLED BIT_ULL(MSR_AMD64_SEV_ENABLED_BIT)
+#define MSR_AMD64_SEV_ES_ENABLED BIT_ULL(MSR_AMD64_SEV_ES_ENABLED_BIT)
#define MSR_AMD64_VIRT_SPEC_CTRL 0xc001011f
#define MSR_CORE_PERF_FIXED_CTR0 0x00000309
#define MSR_CORE_PERF_FIXED_CTR1 0x0000030a
#define MSR_CORE_PERF_FIXED_CTR2 0x0000030b
+#define MSR_CORE_PERF_FIXED_CTR3 0x0000030c
#define MSR_CORE_PERF_FIXED_CTR_CTRL 0x0000038d
#define MSR_CORE_PERF_GLOBAL_STATUS 0x0000038e
#define MSR_CORE_PERF_GLOBAL_CTRL 0x0000038f
#define MSR_CORE_PERF_GLOBAL_OVF_CTRL 0x00000390
+#define MSR_PERF_METRICS 0x00000329
+
/* PERF_GLOBAL_OVF_CTL bits */
#define MSR_CORE_PERF_GLOBAL_OVF_CTRL_TRACE_TOPA_PMI_BIT 55
#define MSR_CORE_PERF_GLOBAL_OVF_CTRL_TRACE_TOPA_PMI (1ULL << MSR_CORE_PERF_GLOBAL_OVF_CTRL_TRACE_TOPA_PMI_BIT)
#endif
#ifdef CONFIG_X86_64
-#ifdef CONFIG_PARAVIRT
+#ifdef CONFIG_PARAVIRT_XXL
/* Paravirtualized systems may not have PSE or PGE available */
#define NEED_PSE 0
#define NEED_PGE 0
__u32 indices[0];
};
+/* Maximum size of any access bitmap in bytes */
+#define KVM_MSR_FILTER_MAX_BITMAP_SIZE 0x600
+
+/* for KVM_X86_SET_MSR_FILTER */
+struct kvm_msr_filter_range {
+#define KVM_MSR_FILTER_READ (1 << 0)
+#define KVM_MSR_FILTER_WRITE (1 << 1)
+ __u32 flags;
+ __u32 nmsrs; /* number of msrs in bitmap */
+ __u32 base; /* MSR index the bitmap starts at */
+ __u8 *bitmap; /* a 1 bit allows the operations in flags, 0 denies */
+};
+
+#define KVM_MSR_FILTER_MAX_RANGES 16
+struct kvm_msr_filter {
+#define KVM_MSR_FILTER_DEFAULT_ALLOW (0 << 0)
+#define KVM_MSR_FILTER_DEFAULT_DENY (1 << 0)
+ __u32 flags;
+ struct kvm_msr_filter_range ranges[KVM_MSR_FILTER_MAX_RANGES];
+};
struct kvm_cpuid_entry {
__u32 function;
#define SVM_EXIT_WRITE_DR6 0x036
#define SVM_EXIT_WRITE_DR7 0x037
#define SVM_EXIT_EXCP_BASE 0x040
+#define SVM_EXIT_LAST_EXCP 0x05f
#define SVM_EXIT_INTR 0x060
#define SVM_EXIT_NMI 0x061
#define SVM_EXIT_SMI 0x062
#define SVM_EXIT_MWAIT_COND 0x08c
#define SVM_EXIT_XSETBV 0x08d
#define SVM_EXIT_RDPRU 0x08e
+#define SVM_EXIT_INVPCID 0x0a2
#define SVM_EXIT_NPF 0x400
#define SVM_EXIT_AVIC_INCOMPLETE_IPI 0x401
#define SVM_EXIT_AVIC_UNACCELERATED_ACCESS 0x402
+/* SEV-ES software-defined VMGEXIT events */
+#define SVM_VMGEXIT_MMIO_READ 0x80000001
+#define SVM_VMGEXIT_MMIO_WRITE 0x80000002
+#define SVM_VMGEXIT_NMI_COMPLETE 0x80000003
+#define SVM_VMGEXIT_AP_HLT_LOOP 0x80000004
+#define SVM_VMGEXIT_AP_JUMP_TABLE 0x80000005
+#define SVM_VMGEXIT_SET_AP_JUMP_TABLE 0
+#define SVM_VMGEXIT_GET_AP_JUMP_TABLE 1
+#define SVM_VMGEXIT_UNSUPPORTED_EVENT 0x8000ffff
+
#define SVM_EXIT_ERR -1
#define SVM_EXIT_REASONS \
{ SVM_EXIT_MONITOR, "monitor" }, \
{ SVM_EXIT_MWAIT, "mwait" }, \
{ SVM_EXIT_XSETBV, "xsetbv" }, \
+ { SVM_EXIT_INVPCID, "invpcid" }, \
{ SVM_EXIT_NPF, "npf" }, \
{ SVM_EXIT_AVIC_INCOMPLETE_IPI, "avic_incomplete_ipi" }, \
{ SVM_EXIT_AVIC_UNACCELERATED_ACCESS, "avic_unaccelerated_access" }, \
main_test_libperl();
main_test_hello();
main_test_libelf();
- main_test_libelf_mmap();
main_test_get_current_dir_name();
main_test_gettid();
main_test_glibc();
#define __pure __attribute__((pure))
#endif
#define noinline __attribute__((noinline))
-#ifdef __has_attribute
-#if __has_attribute(disable_tail_calls)
-#define __no_tail_call __attribute__((disable_tail_calls))
-#endif
-#endif
-#ifndef __no_tail_call
-#if GCC_VERSION > 40201
-#define __no_tail_call __attribute__((optimize("no-optimize-sibling-calls")))
-#else
-#define __no_tail_call
-#endif
-#endif
#ifndef __packed
#define __packed __attribute__((packed))
#endif
#ifndef noinline
#define noinline
#endif
-#ifndef __no_tail_call
-#define __no_tail_call
-#endif
/* Are two types/vars the same type (ignoring qualifiers)? */
#ifndef __same_type
__SYSCALL(__NR_pidfd_getfd, sys_pidfd_getfd)
#define __NR_faccessat2 439
__SYSCALL(__NR_faccessat2, sys_faccessat2)
+#define __NR_process_madvise 440
+__SYSCALL(__NR_process_madvise, sys_process_madvise)
#undef __NR_syscalls
-#define __NR_syscalls 440
+#define __NR_syscalls 441
/*
* 32 bit systems traditionally used different
*/
#define I915_PARAM_PERF_REVISION 54
+/* Query whether DRM_I915_GEM_EXECBUFFER2 supports supplying an array of
+ * timeline syncobj through drm_i915_gem_execbuffer_ext_timeline_fences. See
+ * I915_EXEC_USE_EXTENSIONS.
+ */
+#define I915_PARAM_HAS_EXEC_TIMELINE_FENCES 55
+
/* Must be kept compact -- no holes and well documented */
typedef struct drm_i915_getparam {
__u32 flags;
};
+/**
+ * See drm_i915_gem_execbuffer_ext_timeline_fences.
+ */
+#define DRM_I915_GEM_EXECBUFFER_EXT_TIMELINE_FENCES 0
+
+/**
+ * This structure describes an array of drm_syncobj and associated points for
+ * timeline variants of drm_syncobj. It is invalid to append this structure to
+ * the execbuf if I915_EXEC_FENCE_ARRAY is set.
+ */
+struct drm_i915_gem_execbuffer_ext_timeline_fences {
+ struct i915_user_extension base;
+
+ /**
+ * Number of element in the handles_ptr & value_ptr arrays.
+ */
+ __u64 fence_count;
+
+ /**
+ * Pointer to an array of struct drm_i915_gem_exec_fence of length
+ * fence_count.
+ */
+ __u64 handles_ptr;
+
+ /**
+ * Pointer to an array of u64 values of length fence_count. Values
+ * must be 0 for a binary drm_syncobj. A Value of 0 for a timeline
+ * drm_syncobj is invalid as it turns a drm_syncobj into a binary one.
+ */
+ __u64 values_ptr;
+};
+
struct drm_i915_gem_execbuffer2 {
/**
* List of gem_exec_object2 structs
__u32 num_cliprects;
/**
* This is a struct drm_clip_rect *cliprects if I915_EXEC_FENCE_ARRAY
- * is not set. If I915_EXEC_FENCE_ARRAY is set, then this is a
- * struct drm_i915_gem_exec_fence *fences.
+ * & I915_EXEC_USE_EXTENSIONS are not set.
+ *
+ * If I915_EXEC_FENCE_ARRAY is set, then this is a pointer to an array
+ * of struct drm_i915_gem_exec_fence and num_cliprects is the length
+ * of the array.
+ *
+ * If I915_EXEC_USE_EXTENSIONS is set, then this is a pointer to a
+ * single struct i915_user_extension and num_cliprects is 0.
*/
__u64 cliprects_ptr;
#define I915_EXEC_RING_MASK (0x3f)
*/
#define I915_EXEC_FENCE_SUBMIT (1 << 20)
-#define __I915_EXEC_UNKNOWN_FLAGS (-(I915_EXEC_FENCE_SUBMIT << 1))
+/*
+ * Setting I915_EXEC_USE_EXTENSIONS implies that
+ * drm_i915_gem_execbuffer2.cliprects_ptr is treated as a pointer to an linked
+ * list of i915_user_extension. Each i915_user_extension node is the base of a
+ * larger structure. The list of supported structures are listed in the
+ * drm_i915_gem_execbuffer_ext enum.
+ */
+#define I915_EXEC_USE_EXTENSIONS (1 << 21)
+
+#define __I915_EXEC_UNKNOWN_FLAGS (-(I915_EXEC_USE_EXTENSIONS << 1))
#define I915_EXEC_CONTEXT_ID_MASK (0xffffffff)
#define i915_execbuffer2_set_context_id(eb2, context) \
__u8 flags;
__u8 master_key_descriptor[FSCRYPT_KEY_DESCRIPTOR_SIZE];
};
-#define fscrypt_policy fscrypt_policy_v1
/*
* Process-subscribed "logon" key description prefix and payload format.
__u32 __out_reserved[13];
};
-#define FS_IOC_SET_ENCRYPTION_POLICY _IOR('f', 19, struct fscrypt_policy)
+#define FS_IOC_SET_ENCRYPTION_POLICY _IOR('f', 19, struct fscrypt_policy_v1)
#define FS_IOC_GET_ENCRYPTION_PWSALT _IOW('f', 20, __u8[16])
-#define FS_IOC_GET_ENCRYPTION_POLICY _IOW('f', 21, struct fscrypt_policy)
+#define FS_IOC_GET_ENCRYPTION_POLICY _IOW('f', 21, struct fscrypt_policy_v1)
#define FS_IOC_GET_ENCRYPTION_POLICY_EX _IOWR('f', 22, __u8[9]) /* size + version */
#define FS_IOC_ADD_ENCRYPTION_KEY _IOWR('f', 23, struct fscrypt_add_key_arg)
#define FS_IOC_REMOVE_ENCRYPTION_KEY _IOWR('f', 24, struct fscrypt_remove_key_arg)
/* old names; don't add anything new here! */
#ifndef __KERNEL__
+#define fscrypt_policy fscrypt_policy_v1
#define FS_KEY_DESCRIPTOR_SIZE FSCRYPT_KEY_DESCRIPTOR_SIZE
#define FS_POLICY_FLAGS_PAD_4 FSCRYPT_POLICY_FLAGS_PAD_4
#define FS_POLICY_FLAGS_PAD_8 FSCRYPT_POLICY_FLAGS_PAD_8
#define KVM_EXIT_IOAPIC_EOI 26
#define KVM_EXIT_HYPERV 27
#define KVM_EXIT_ARM_NISV 28
+#define KVM_EXIT_X86_RDMSR 29
+#define KVM_EXIT_X86_WRMSR 30
/* For KVM_EXIT_INTERNAL_ERROR */
/* Emulate instruction failed. */
__u64 esr_iss;
__u64 fault_ipa;
} arm_nisv;
+ /* KVM_EXIT_X86_RDMSR / KVM_EXIT_X86_WRMSR */
+ struct {
+ __u8 error; /* user -> kernel */
+ __u8 pad[7];
+#define KVM_MSR_EXIT_REASON_INVAL (1 << 0)
+#define KVM_MSR_EXIT_REASON_UNKNOWN (1 << 1)
+#define KVM_MSR_EXIT_REASON_FILTER (1 << 2)
+ __u32 reason; /* kernel -> user */
+ __u32 index; /* kernel -> user */
+ __u64 data; /* kernel <-> user */
+ } msr;
/* Fix the size of the union. */
char padding[256];
};
#define KVM_CAP_SMALLER_MAXPHYADDR 185
#define KVM_CAP_S390_DIAG318 186
#define KVM_CAP_STEAL_TIME 187
+#define KVM_CAP_X86_USER_SPACE_MSR 188
+#define KVM_CAP_X86_MSR_FILTER 189
+#define KVM_CAP_ENFORCE_PV_FEATURE_CPUID 190
#ifdef KVM_CAP_IRQ_ROUTING
/* Available with KVM_CAP_S390_PROTECTED */
#define KVM_S390_PV_COMMAND _IOWR(KVMIO, 0xc5, struct kvm_pv_cmd)
+/* Available with KVM_CAP_X86_MSR_FILTER */
+#define KVM_X86_SET_MSR_FILTER _IOW(KVMIO, 0xc6, struct kvm_msr_filter)
+
/* Secure Encrypted Virtualization command */
enum sev_cmd_id {
/* Guest initialization commands */
#define MAP_HUGE_SHIFT HUGETLB_FLAG_ENCODE_SHIFT
#define MAP_HUGE_MASK HUGETLB_FLAG_ENCODE_MASK
+#define MAP_HUGE_16KB HUGETLB_FLAG_ENCODE_16KB
#define MAP_HUGE_64KB HUGETLB_FLAG_ENCODE_64KB
#define MAP_HUGE_512KB HUGETLB_FLAG_ENCODE_512KB
#define MAP_HUGE_1MB HUGETLB_FLAG_ENCODE_1MB
#define MS_REMOUNT 32 /* Alter flags of a mounted FS */
#define MS_MANDLOCK 64 /* Allow mandatory locks on an FS */
#define MS_DIRSYNC 128 /* Directory modifications are synchronous */
+#define MS_NOSYMFOLLOW 256 /* Do not follow symlinks */
#define MS_NOATIME 1024 /* Do not update access times. */
#define MS_NODIRATIME 2048 /* Do not update directory access times */
#define MS_BIND 4096
#define PERF_MEM_SNOOPX_FWD 0x01 /* forward */
/* 1 free */
-#define PERF_MEM_SNOOPX_SHIFT 38
+#define PERF_MEM_SNOOPX_SHIFT 38
/* locked instruction */
#define PERF_MEM_LOCK_NA 0x01 /* not available */
#define PR_SET_TAGGED_ADDR_CTRL 55
#define PR_GET_TAGGED_ADDR_CTRL 56
# define PR_TAGGED_ADDR_ENABLE (1UL << 0)
+/* MTE tag check fault modes */
+# define PR_MTE_TCF_SHIFT 1
+# define PR_MTE_TCF_NONE (0UL << PR_MTE_TCF_SHIFT)
+# define PR_MTE_TCF_SYNC (1UL << PR_MTE_TCF_SHIFT)
+# define PR_MTE_TCF_ASYNC (2UL << PR_MTE_TCF_SHIFT)
+# define PR_MTE_TCF_MASK (3UL << PR_MTE_TCF_SHIFT)
+/* MTE tag inclusion mask */
+# define PR_MTE_TAG_SHIFT 3
+# define PR_MTE_TAG_MASK (0xffffUL << PR_MTE_TAG_SHIFT)
/* Control reclaim behavior when allocating memory */
#define PR_SET_IO_FLUSHER 57
/* Set event fd for config interrupt*/
#define VHOST_VDPA_SET_CONFIG_CALL _IOW(VHOST_VIRTIO, 0x77, int)
+
+/* Get the valid iova range */
+#define VHOST_VDPA_GET_IOVA_RANGE _IOR(VHOST_VIRTIO, 0x78, \
+ struct vhost_vdpa_iova_range)
#endif
PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
+ PERL_EMBED_CCOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
437 common openat2 sys_openat2
438 common pidfd_getfd sys_pidfd_getfd
439 common faccessat2 sys_faccessat2
+440 common process_madvise sys_process_madvise
#
-# x32-specific system call numbers start at 512 to avoid cache impact
-# for native 64-bit operation. The __x32_compat_sys stubs are created
-# on-the-fly for compat_sys_*() compatibility system calls if X86_X32
-# is defined.
+# Due to a historical design error, certain syscalls are numbered differently
+# in x32 as compared to native x86_64. These syscalls have numbers 512-547.
+# Do not add new syscalls to this range. Numbers 548 and above are available
+# for non-x32 use.
#
512 x32 rt_sigaction compat_sys_rt_sigaction
513 x32 rt_sigreturn compat_sys_x32_rt_sigreturn
545 x32 execveat compat_sys_execveat
546 x32 preadv2 compat_sys_preadv64v2
547 x32 pwritev2 compat_sys_pwritev64v2
+# This is the end of the legacy x32 range. Numbers 548 and above are
+# not special and are not to be used for x32-specific syscalls.
err = 0;
if (lists[0]) {
- struct option o = OPT_CALLBACK('e', "event", &trace->evlist, "event",
- "event selector. use 'perf list' to list available events",
- parse_events_option);
+ struct option o = {
+ .value = &trace->evlist,
+ };
err = parse_events_option(&o, lists[0], 0);
}
out:
{
struct trace *trace = opt->value;
- if (!list_empty(&trace->evlist->core.entries))
- return parse_cgroups(opt, str, unset);
-
+ if (!list_empty(&trace->evlist->core.entries)) {
+ struct option o = {
+ .value = &trace->evlist,
+ };
+ return parse_cgroups(&o, str, unset);
+ }
trace->cgroup = evlist__findnew_cgroup(trace->evlist, str);
return 0;
},
{
"BriefDescription": "Average external Memory Bandwidth Use for reads and writes [GB / sec]",
- "MetricExpr": "( 64 * ( uncore_imc@cas_count_read@ + uncore_imc@cas_count_write@ ) / 1000000000 ) / duration_time",
+ "MetricExpr": "( ( ( uncore_imc@cas_count_read@ + uncore_imc@cas_count_write@ ) * 1048576 ) / 1000000000 ) / duration_time",
"MetricGroup": "Memory_BW;SoC",
"MetricName": "DRAM_BW_Use"
},
},
{
"BriefDescription": "Average external Memory Bandwidth Use for reads and writes [GB / sec]",
- "MetricExpr": "( 64 * ( uncore_imc@cas_count_read@ + uncore_imc@cas_count_write@ ) / 1000000000 ) / duration_time",
+ "MetricExpr": "( ( ( uncore_imc@cas_count_read@ + uncore_imc@cas_count_write@ ) * 1048576 ) / 1000000000 ) / duration_time",
"MetricGroup": "Memory_BW;SoC",
"MetricName": "DRAM_BW_Use"
},
return strcmp((const char *) symbol, funcs[idx]);
}
-__no_tail_call noinline int test_dwarf_unwind__thread(struct thread *thread)
+noinline int test_dwarf_unwind__thread(struct thread *thread)
{
struct perf_sample sample;
unsigned long cnt = 0;
static int global_unwind_retval = -INT_MAX;
-__no_tail_call noinline int test_dwarf_unwind__compare(void *p1, void *p2)
+noinline int test_dwarf_unwind__compare(void *p1, void *p2)
{
/* Any possible value should be 'thread' */
struct thread *thread = *(struct thread **)p1;
return p1 - p2;
}
-__no_tail_call noinline int test_dwarf_unwind__krava_3(struct thread *thread)
+noinline int test_dwarf_unwind__krava_3(struct thread *thread)
{
struct thread *array[2] = {thread, thread};
void *fp = &bsearch;
return global_unwind_retval;
}
-__no_tail_call noinline int test_dwarf_unwind__krava_2(struct thread *thread)
+noinline int test_dwarf_unwind__krava_2(struct thread *thread)
{
return test_dwarf_unwind__krava_3(thread);
}
-__no_tail_call noinline int test_dwarf_unwind__krava_1(struct thread *thread)
+noinline int test_dwarf_unwind__krava_1(struct thread *thread)
{
return test_dwarf_unwind__krava_2(thread);
}
struct popup_action actions[MAX_OPTIONS];
int nr_options = 0;
int key = -1;
- char buf[64];
+ char buf[128];
int delay_secs = hbt ? hbt->refresh : 0;
#define HIST_BROWSER_HELP_COMMON \
const u8 *raw = build_id->data;
size_t i;
+ bf[0] = 0x0;
+
for (i = 0; i < build_id->size; ++i) {
sprintf(bid, "%02x", *raw);
++raw;
/* make sure libbpf doesn't use kernel-only integer typedefs */
#pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64
+/* prevent accidental re-addition of reallocarray() */
+#pragma GCC poison reallocarray
+
/* start with 4 buckets */
#define HASHMAP_MIN_CAP_BITS 2
#endif
}
+/* generic C-string hashing function */
+static inline size_t str_hash(const char *s)
+{
+ size_t h = 0;
+
+ while (*s) {
+ h = h * 31 + *s;
+ s++;
+ }
+ return h;
+}
+
typedef size_t (*hashmap_hash_fn)(const void *key, void *ctx);
typedef bool (*hashmap_equal_fn)(const void *key1, const void *key2, void *ctx);
union perf_event *event,
struct perf_sample *sample __maybe_unused)
{
+ struct symbol *sym;
struct map *map;
map = maps__find(&machine->kmaps, event->ksymbol.addr);
- if (map)
+ if (!map)
+ return 0;
+
+ if (map != machine->vmlinux_map)
maps__remove(&machine->kmaps, map);
+ else {
+ sym = dso__find_symbol(map->dso, map->map_ip(map, map->start));
+ if (sym)
+ dso__delete_symbol(map->dso, sym);
+ }
return 0;
}
static int python_start_script(const char *script, int argc, const char **argv)
{
struct tables *tables = &tables_global;
- PyMODINIT_FUNC (*initfunc)(void);
#if PY_MAJOR_VERSION < 3
const char **command_line;
#else
FILE *fp;
#if PY_MAJOR_VERSION < 3
- initfunc = initperf_trace_context;
command_line = malloc((argc + 1) * sizeof(const char *));
command_line[0] = script;
for (i = 1; i < argc + 1; i++)
command_line[i] = argv[i - 1];
+ PyImport_AppendInittab(name, initperf_trace_context);
#else
- initfunc = PyInit_perf_trace_context;
command_line = malloc((argc + 1) * sizeof(wchar_t *));
command_line[0] = Py_DecodeLocale(script, NULL);
for (i = 1; i < argc + 1; i++)
command_line[i] = Py_DecodeLocale(argv[i - 1], NULL);
+ PyImport_AppendInittab(name, PyInit_perf_trace_context);
#endif
-
- PyImport_AppendInittab(name, initfunc);
Py_Initialize();
#if PY_MAJOR_VERSION < 3
event->mmap2.maj = bswap_32(event->mmap2.maj);
event->mmap2.min = bswap_32(event->mmap2.min);
event->mmap2.ino = bswap_64(event->mmap2.ino);
+ event->mmap2.ino_generation = bswap_64(event->mmap2.ino_generation);
if (sample_id_all) {
void *data = &event->mmap2.filename;
swap_sample_id_all(event, &event->namespaces.link_info[i]);
}
+static void perf_event__cgroup_swap(union perf_event *event, bool sample_id_all)
+{
+ event->cgroup.id = bswap_64(event->cgroup.id);
+
+ if (sample_id_all) {
+ void *data = &event->cgroup.path;
+
+ data += PERF_ALIGN(strlen(data) + 1, sizeof(u64));
+ swap_sample_id_all(event, data);
+ }
+}
+
static u8 revbyte(u8 b)
{
int rev = (b >> 4) | ((b & 0xf) << 4);
[PERF_RECORD_SWITCH] = perf_event__switch_swap,
[PERF_RECORD_SWITCH_CPU_WIDE] = perf_event__switch_swap,
[PERF_RECORD_NAMESPACES] = perf_event__namespaces_swap,
+ [PERF_RECORD_CGROUP] = perf_event__cgroup_swap,
[PERF_RECORD_TEXT_POKE] = perf_event__text_poke_swap,
[PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap,
[PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap,
}
}
+void dso__delete_symbol(struct dso *dso, struct symbol *sym)
+{
+ rb_erase_cached(&sym->rb_node, &dso->symbols);
+ symbol__delete(sym);
+ dso__reset_find_symbol_cache(dso);
+}
+
struct symbol *dso__find_symbol(struct dso *dso, u64 addr)
{
if (dso->last_find_result.addr != addr || dso->last_find_result.symbol == NULL) {
void dso__insert_symbol(struct dso *dso,
struct symbol *sym);
+void dso__delete_symbol(struct dso *dso,
+ struct symbol *sym);
struct symbol *dso__find_symbol(struct dso *dso, u64 addr);
struct symbol *dso__find_symbol_by_name(struct dso *dso, const char *name);
def raw_output(kernel_output):
for line in kernel_output:
print(line)
- yield line
DIVIDER = '=' * 60
return None
test_suite.name = name
expected_test_case_num = parse_subtest_plan(lines)
- if not expected_test_case_num:
+ if expected_test_case_num is None:
return None
while expected_test_case_num > 0:
test_case = parse_test_case(lines)
print_mock = mock.patch('builtins.print').start()
result = kunit_parser.parse_run_tests(
kunit_parser.isolate_kunit_output(file.readlines()))
- print_mock.assert_any_call(StrContains("no kunit output detected"))
+ print_mock.assert_any_call(StrContains('no tests run!'))
print_mock.stop()
file.close()
'test_data/test_config_printk_time.log')
with open(prefix_log) as file:
result = kunit_parser.parse_run_tests(file.readlines())
- self.assertEqual('kunit-resource-test', result.suites[0].name)
+ self.assertEqual(
+ kunit_parser.TestStatus.SUCCESS,
+ result.status)
+ self.assertEqual('kunit-resource-test', result.suites[0].name)
def test_ignores_multiple_prefixes(self):
prefix_log = get_absolute_path(
'test_data/test_multiple_prefixes.log')
with open(prefix_log) as file:
result = kunit_parser.parse_run_tests(file.readlines())
- self.assertEqual('kunit-resource-test', result.suites[0].name)
+ self.assertEqual(
+ kunit_parser.TestStatus.SUCCESS,
+ result.status)
+ self.assertEqual('kunit-resource-test', result.suites[0].name)
def test_prefix_mixed_kernel_output(self):
mixed_prefix_log = get_absolute_path(
'test_data/test_interrupted_tap_output.log')
with open(mixed_prefix_log) as file:
result = kunit_parser.parse_run_tests(file.readlines())
- self.assertEqual('kunit-resource-test', result.suites[0].name)
+ self.assertEqual(
+ kunit_parser.TestStatus.SUCCESS,
+ result.status)
+ self.assertEqual('kunit-resource-test', result.suites[0].name)
def test_prefix_poundsign(self):
pound_log = get_absolute_path('test_data/test_pound_sign.log')
with open(pound_log) as file:
result = kunit_parser.parse_run_tests(file.readlines())
- self.assertEqual('kunit-resource-test', result.suites[0].name)
+ self.assertEqual(
+ kunit_parser.TestStatus.SUCCESS,
+ result.status)
+ self.assertEqual('kunit-resource-test', result.suites[0].name)
def test_kernel_panic_end(self):
panic_log = get_absolute_path('test_data/test_kernel_panic_interrupt.log')
with open(panic_log) as file:
result = kunit_parser.parse_run_tests(file.readlines())
- self.assertEqual('kunit-resource-test', result.suites[0].name)
+ self.assertEqual(
+ kunit_parser.TestStatus.TEST_CRASHED,
+ result.status)
+ self.assertEqual('kunit-resource-test', result.suites[0].name)
def test_pound_no_prefix(self):
pound_log = get_absolute_path('test_data/test_pound_no_prefix.log')
with open(pound_log) as file:
result = kunit_parser.parse_run_tests(file.readlines())
- self.assertEqual('kunit-resource-test', result.suites[0].name)
+ self.assertEqual(
+ kunit_parser.TestStatus.SUCCESS,
+ result.status)
+ self.assertEqual('kunit-resource-test', result.suites[0].name)
class KUnitJsonTest(unittest.TestCase):
[ 0.060000] printk: console [mc-1] enabled
[ 0.060000] random: get_random_bytes called from init_oops_id+0x35/0x40 with crng_init=0
[ 0.060000] TAP version 14
+[ 0.060000] 1..3
[ 0.060000] # Subtest: kunit-resource-test
[ 0.060000] 1..5
[ 0.060000] ok 1 - kunit_resource_test_init_resources
[ 0.060000] Stack:
[ 0.060000] 602086f8 601bc260 705c0000 705c0000
[ 0.060000] 602086f8 6005fcec 705c0000 6002c6ab
-[ 0.060000] 6005fcec 601bc260 705c0000 3000000010
\ No newline at end of file
+[ 0.060000] 6005fcec 601bc260 705c0000 3000000010
[ 0.060000] printk: console [mc-1] enabled
[ 0.060000] random: get_random_bytes called from init_oops_id+0x35/0x40 with crng_init=0
[ 0.060000] TAP version 14
+[ 0.060000] 1..3
[ 0.060000] # Subtest: kunit-resource-test
[ 0.060000] 1..5
[ 0.060000] ok 1 - kunit_resource_test_init_resources
[ 0.060000] Stack:
[ 0.060000] 602086f8 601bc260 705c0000 705c0000
[ 0.060000] 602086f8 6005fcec 705c0000 6002c6ab
-[ 0.060000] 6005fcec 601bc260 705c0000 3000000010
\ No newline at end of file
+[ 0.060000] 6005fcec 601bc260 705c0000 3000000010
[ 0.060000] printk: console [mc-1] enabled
[ 0.060000] random: get_random_bytes called from init_oops_id+0x35/0x40 with crng_init=0
[ 0.060000] TAP version 14
+[ 0.060000] 1..3
[ 0.060000] # Subtest: kunit-resource-test
[ 0.060000] 1..5
[ 0.060000] ok 1 - kunit_resource_test_init_resources
[ 0.060000] Stack:
[ 0.060000] 602086f8 601bc260 705c0000 705c0000
[ 0.060000] 602086f8 6005fcec 705c0000 6002c6ab
-[ 0.060000] 6005fcec 601bc260 705c0000 3000000010
\ No newline at end of file
+[ 0.060000] 6005fcec 601bc260 705c0000 3000000010
[ 0.060000][ T1] printk: console [mc-1] enabled
[ 0.060000][ T1] random: get_random_bytes called from init_oops_id+0x35/0x40 with crng_init=0
[ 0.060000][ T1] TAP version 14
+[ 0.060000][ T1] 1..3
[ 0.060000][ T1] # Subtest: kunit-resource-test
[ 0.060000][ T1] 1..5
[ 0.060000][ T1] ok 1 - kunit_resource_test_init_resources
[ 0.060000][ T1] Stack:
[ 0.060000][ T1] 602086f8 601bc260 705c0000 705c0000
[ 0.060000][ T1] 602086f8 6005fcec 705c0000 6002c6ab
-[ 0.060000][ T1] 6005fcec 601bc260 705c0000 3000000010
\ No newline at end of file
+[ 0.060000][ T1] 6005fcec 601bc260 705c0000 3000000010
printk: console [mc-1] enabled
random: get_random_bytes called from init_oops_id+0x35/0x40 with crng_init=0
TAP version 14
+ 1..3
# Subtest: kunit-resource-test
1..5
ok 1 - kunit_resource_test_init_resources
Stack:
602086f8 601bc260 705c0000 705c0000
602086f8 6005fcec 705c0000 6002c6ab
- 6005fcec 601bc260 705c0000 3000000010
\ No newline at end of file
+ 6005fcec 601bc260 705c0000 3000000010
[ 0.060000] printk: console [mc-1] enabled
[ 0.060000] random: get_random_bytes called from init_oops_id+0x35/0x40 with crng_init=0
[ 0.060000] TAP version 14
+[ 0.060000] 1..3
[ 0.060000] # Subtest: kunit-resource-test
[ 0.060000] 1..5
[ 0.060000] ok 1 - kunit_resource_test_init_resources
close(ctx.epfd);
}
+struct epoll61_ctx {
+ int epfd;
+ int evfd;
+};
+
+static void *epoll61_write_eventfd(void *ctx_)
+{
+ struct epoll61_ctx *ctx = ctx_;
+ int64_t l = 1;
+
+ usleep(10950);
+ write(ctx->evfd, &l, sizeof(l));
+ return NULL;
+}
+
+static void *epoll61_epoll_with_timeout(void *ctx_)
+{
+ struct epoll61_ctx *ctx = ctx_;
+ struct epoll_event events[1];
+ int n;
+
+ n = epoll_wait(ctx->epfd, events, 1, 11);
+ /*
+ * If epoll returned the eventfd, write on the eventfd to wake up the
+ * blocking poller.
+ */
+ if (n == 1) {
+ int64_t l = 1;
+
+ write(ctx->evfd, &l, sizeof(l));
+ }
+ return NULL;
+}
+
+static void *epoll61_blocking_epoll(void *ctx_)
+{
+ struct epoll61_ctx *ctx = ctx_;
+ struct epoll_event events[1];
+
+ epoll_wait(ctx->epfd, events, 1, -1);
+ return NULL;
+}
+
+TEST(epoll61)
+{
+ struct epoll61_ctx ctx;
+ struct epoll_event ev;
+ int i, r;
+
+ ctx.epfd = epoll_create1(0);
+ ASSERT_GE(ctx.epfd, 0);
+ ctx.evfd = eventfd(0, EFD_NONBLOCK);
+ ASSERT_GE(ctx.evfd, 0);
+
+ ev.events = EPOLLIN | EPOLLET | EPOLLERR | EPOLLHUP;
+ ev.data.ptr = NULL;
+ r = epoll_ctl(ctx.epfd, EPOLL_CTL_ADD, ctx.evfd, &ev);
+ ASSERT_EQ(r, 0);
+
+ /*
+ * We are testing a race. Repeat the test case 1000 times to make it
+ * more likely to fail in case of a bug.
+ */
+ for (i = 0; i < 1000; i++) {
+ pthread_t threads[3];
+ int n;
+
+ /*
+ * Start 3 threads:
+ * Thread 1 sleeps for 10.9ms and writes to the evenfd.
+ * Thread 2 calls epoll with a timeout of 11ms.
+ * Thread 3 calls epoll with a timeout of -1.
+ *
+ * The eventfd write by Thread 1 should either wakeup Thread 2
+ * or Thread 3. If it wakes up Thread 2, Thread 2 writes on the
+ * eventfd to wake up Thread 3.
+ *
+ * If no events are missed, all three threads should eventually
+ * be joinable.
+ */
+ ASSERT_EQ(pthread_create(&threads[0], NULL,
+ epoll61_write_eventfd, &ctx), 0);
+ ASSERT_EQ(pthread_create(&threads[1], NULL,
+ epoll61_epoll_with_timeout, &ctx), 0);
+ ASSERT_EQ(pthread_create(&threads[2], NULL,
+ epoll61_blocking_epoll, &ctx), 0);
+
+ for (n = 0; n < ARRAY_SIZE(threads); ++n)
+ ASSERT_EQ(pthread_join(threads[n], NULL), 0);
+ }
+
+ close(ctx.epfd);
+ close(ctx.evfd);
+}
+
TEST_HARNESS_MAIN
*/
/**
- * ASSERT_EQ(expected, seen)
+ * ASSERT_EQ()
*
* @expected: expected value
* @seen: measured value
__EXPECT(expected, #expected, seen, #seen, ==, 1)
/**
- * ASSERT_NE(expected, seen)
+ * ASSERT_NE()
*
* @expected: expected value
* @seen: measured value
__EXPECT(expected, #expected, seen, #seen, !=, 1)
/**
- * ASSERT_LT(expected, seen)
+ * ASSERT_LT()
*
* @expected: expected value
* @seen: measured value
__EXPECT(expected, #expected, seen, #seen, <, 1)
/**
- * ASSERT_LE(expected, seen)
+ * ASSERT_LE()
*
* @expected: expected value
* @seen: measured value
__EXPECT(expected, #expected, seen, #seen, <=, 1)
/**
- * ASSERT_GT(expected, seen)
+ * ASSERT_GT()
*
* @expected: expected value
* @seen: measured value
__EXPECT(expected, #expected, seen, #seen, >, 1)
/**
- * ASSERT_GE(expected, seen)
+ * ASSERT_GE()
*
* @expected: expected value
* @seen: measured value
__EXPECT(expected, #expected, seen, #seen, >=, 1)
/**
- * ASSERT_NULL(seen)
+ * ASSERT_NULL()
*
* @seen: measured value
*
__EXPECT(NULL, "NULL", seen, #seen, ==, 1)
/**
- * ASSERT_TRUE(seen)
+ * ASSERT_TRUE()
*
* @seen: measured value
*
__EXPECT(0, "0", seen, #seen, !=, 1)
/**
- * ASSERT_FALSE(seen)
+ * ASSERT_FALSE()
*
* @seen: measured value
*
__EXPECT(0, "0", seen, #seen, ==, 1)
/**
- * ASSERT_STREQ(expected, seen)
+ * ASSERT_STREQ()
*
* @expected: expected value
* @seen: measured value
__EXPECT_STR(expected, seen, ==, 1)
/**
- * ASSERT_STRNE(expected, seen)
+ * ASSERT_STRNE()
*
* @expected: expected value
* @seen: measured value
__EXPECT_STR(expected, seen, !=, 1)
/**
- * EXPECT_EQ(expected, seen)
+ * EXPECT_EQ()
*
* @expected: expected value
* @seen: measured value
__EXPECT(expected, #expected, seen, #seen, ==, 0)
/**
- * EXPECT_NE(expected, seen)
+ * EXPECT_NE()
*
* @expected: expected value
* @seen: measured value
__EXPECT(expected, #expected, seen, #seen, !=, 0)
/**
- * EXPECT_LT(expected, seen)
+ * EXPECT_LT()
*
* @expected: expected value
* @seen: measured value
__EXPECT(expected, #expected, seen, #seen, <, 0)
/**
- * EXPECT_LE(expected, seen)
+ * EXPECT_LE()
*
* @expected: expected value
* @seen: measured value
__EXPECT(expected, #expected, seen, #seen, <=, 0)
/**
- * EXPECT_GT(expected, seen)
+ * EXPECT_GT()
*
* @expected: expected value
* @seen: measured value
__EXPECT(expected, #expected, seen, #seen, >, 0)
/**
- * EXPECT_GE(expected, seen)
+ * EXPECT_GE()
*
* @expected: expected value
* @seen: measured value
__EXPECT(expected, #expected, seen, #seen, >=, 0)
/**
- * EXPECT_NULL(seen)
+ * EXPECT_NULL()
*
* @seen: measured value
*
__EXPECT(NULL, "NULL", seen, #seen, ==, 0)
/**
- * EXPECT_TRUE(seen)
+ * EXPECT_TRUE()
*
* @seen: measured value
*
__EXPECT(0, "0", seen, #seen, !=, 0)
/**
- * EXPECT_FALSE(seen)
+ * EXPECT_FALSE()
*
* @seen: measured value
*
__EXPECT(0, "0", seen, #seen, ==, 0)
/**
- * EXPECT_STREQ(expected, seen)
+ * EXPECT_STREQ()
*
* @expected: expected value
* @seen: measured value
__EXPECT_STR(expected, seen, ==, 0)
/**
- * EXPECT_STRNE(expected, seen)
+ * EXPECT_STRNE()
*
* @expected: expected value
* @seen: measured value
n2 ping -W 1 -c 1 192.168.241.1
n1 wg set wg0 peer "$pub2" persistent-keepalive 0
+# Test that sk_bound_dev_if works
+n1 ping -I wg0 -c 1 -W 1 192.168.241.2
+# What about when the mark changes and the packet must be rerouted?
+n1 iptables -t mangle -I OUTPUT -j MARK --set-xmark 1
+n1 ping -c 1 -W 1 192.168.241.2 # First the boring case
+n1 ping -I wg0 -c 1 -W 1 192.168.241.2 # Then the sk_bound_dev_if case
+n1 iptables -t mangle -D OUTPUT -j MARK --set-xmark 1
+
# Test that onion routing works, even when it loops
n1 wg set wg0 peer "$pub3" allowed-ips 192.168.242.2/32 endpoint 192.168.241.2:5
ip1 addr add 192.168.242.1/24 dev wg0
CONFIG_NETFILTER_XTABLES=y
CONFIG_NETFILTER_XT_NAT=y
CONFIG_NETFILTER_XT_MATCH_LENGTH=y
+CONFIG_NETFILTER_XT_MARK=y
CONFIG_NF_CONNTRACK_IPV4=y
CONFIG_NF_NAT_IPV4=y
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_FILTER=y
+CONFIG_IP_NF_MANGLE=y
CONFIG_IP_NF_NAT=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_MULTIPLE_TABLES=y
projects / linux-2.6-block.git / commitdiff