Gustavo A. R. Silva [Fri, 16 Aug 2024 10:12:39 +0000 (13:12 +0300)]
wifi: ath12k: Avoid -Wflex-array-member-not-at-end warnings
-Wflex-array-member-not-at-end was introduced in GCC-14, and we are
getting ready to enable it, globally.
Move the conflicting declaration to the end of the structure. Notice
that `struct ieee80211_chanctx_conf` is a flexible structure --a
structure that contains a flexible-array member.
Also, remove an unused structure.
Fix the following warnings:
drivers/net/wireless/ath/ath12k/core.h:290:39: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/ath/ath12k/dp.h:1499:24: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/ZrZEuxJihMzAaTVh@cute
Gustavo A. R. Silva [Fri, 16 Aug 2024 10:12:39 +0000 (13:12 +0300)]
wifi: ath11k: Avoid -Wflex-array-member-not-at-end warnings
-Wflex-array-member-not-at-end was introduced in GCC-14, and we are
getting ready to enable it, globally.
Move the conflicting declaration to the end of the structure. Notice
that `struct ieee80211_chanctx_conf` is a flexible structure --a
structure that contains a flexible-array member.
Also, remove a couple of unused structures.
Fix the following warnings:
drivers/net/wireless/ath/ath11k/core.h:409:39: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/ath/ath11k/dp.h:1309:24: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/ath/ath11k/dp.h:1368:24: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/ZrZB3Rjswe0ZXtug@cute
Toke Høiland-Jørgensen [Mon, 12 Aug 2024 14:24:46 +0000 (16:24 +0200)]
wifi: ath9k_htc: Use __skb_set_length() for resetting urb before resubmit
Syzbot points out that skb_trim() has a sanity check on the existing length of
the skb, which can be uninitialised in some error paths. The intent here is
clearly just to reset the length to zero before resubmitting, so switch to
calling __skb_set_length(skb, 0) directly. In addition, __skb_set_length()
already contains a call to skb_reset_tail_pointer(), so remove the redundant
call.
The syzbot report came from ath9k_hif_usb_reg_in_cb(), but there's a similar
usage of skb_trim() in ath9k_hif_usb_rx_cb(), change both while we're at it.
Reported-by: syzbot+98afa303be379af6cdb2@syzkaller.appspotmail.com
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240812142447.12328-1-toke@toke.dk
Miaoqing Pan [Thu, 15 Aug 2024 16:03:22 +0000 (19:03 +0300)]
wifi: ath12k: fix the stack frame size warning in ath12k_mac_op_hw_scan
Fix the following W=1 kernel build warning:
drivers/net/wireless/ath/ath12k/mac.c: In function ‘ath12k_mac_op_hw_scan’:
drivers/net/wireless/ath/ath12k/mac.c:3806:1: warning: the frame size of 1040 bytes is larger than 1024 bytes [-Wframe-larger-than=]
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
Signed-off-by: Miaoqing Pan <quic_miaoqing@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240809015841.2671448-1-quic_miaoqing@quicinc.com
Kalle Valo [Tue, 13 Aug 2024 09:58:32 +0000 (12:58 +0300)]
Merge tag 'ath-next-
20240812' of git://git./linux/kernel/git/ath/ath
ath.git patches for v6.12
This is a fairly light pull request since ath12k is still working on
MLO-related changes, and the other drivers are mostly in maintenance
mode with a few cleanups and bug fixes.
Major changes:
ath12k
* DebugFS support for transmit DE stats
* Make ASPM support hardware-dependent
* Align BSS Channel information command and message with firmware
ath11k
* Use work queue for beacon tx events
ath9k
* Use devm for gpio_request_one
* Use unmanaged PCI functions in ath9k_pci_owl_loader()
Gustavo A. R. Silva [Thu, 8 Aug 2024 22:11:15 +0000 (16:11 -0600)]
wifi: mwl8k: Use static_assert() to check struct sizes
Commit
5c4250092fad ("wifi: mwl8k: Avoid -Wflex-array-member-not-at-end
warnings") introduced tagged `struct mwl8k_cmd_pkt_hdr`. We want to
ensure that when new members need to be added to the flexible structure,
they are always included within this tagged struct.
We use `static_assert()` to ensure that the memory layout for both
the flexible structure and the tagged struct is the same after any
changes.
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/ZrVCg51Q9M2fTPaF@cute
Kalle Valo [Sat, 10 Aug 2024 07:42:26 +0000 (10:42 +0300)]
Merge tag 'rtw-next-2024-08-09' of https://github.com/pkshih/rtw
rtw-next patches for v6.12
A pull-request for v6.12 containing fixes and features, and list major
changes below:
rtw88:
- improve USB performance by aggregation
- fix RX bandwidth for rx_status
rtw89:
- support new WiFi 6 chip RTL8852BE-VT
- support WoWLAN net-detect feature
- support hardware encryption in unicast management frames
- support hardware rfkill
Gustavo A. R. Silva [Tue, 6 Aug 2024 18:25:57 +0000 (12:25 -0600)]
wifi: ipw2x00: libipw: Avoid -Wflex-array-member-not-at-end warnings
-Wflex-array-member-not-at-end was introduced in GCC-14, and we are
getting ready to enable it, globally.
So, in order to avoid ending up with a flexible-array member in the
middle of multiple other structs, we use the `__struct_group()`
helper to create a new tagged `struct libipw_hdr_3addr_hdr`.
This structure groups together all the members of the flexible
`struct libipw_hdr_3addr` except the flexible array.
As a result, the array is effectively separated from the rest of the
members without modifying the memory layout of the flexible structure.
We then change the type of the middle struct members currently causing
trouble from `struct libipw_hdr_3addr` to `struct libipw_hdr_3addr_hdr`.
We also want to ensure that when new members need to be added to the
flexible structure, they are always included within the newly created
tagged struct. For this, we use `static_assert()`. This ensures that the
memory layout for both the flexible structure and the new tagged struct
is the same after any changes.
This approach avoids having to implement `struct libipw_hdr_3addr_hdr`
as a completely separate structure, thus preventing having to maintain
two independent but basically identical structures, closing the door
to potential bugs in the future.
Also, remove a couple of unused structures `struct libipw_ibss_dfs` and
`struct libipw_assoc_request`.
So, with these changes, fix the following warnings:
drivers/net/wireless/intel/ipw2x00/libipw.h:403:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/intel/ipw2x00/libipw.h:420:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/intel/ipw2x00/libipw.h:433:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/intel/ipw2x00/libipw.h:441:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/intel/ipw2x00/libipw.h:447:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/intel/ipw2x00/libipw.h:460:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/intel/ipw2x00/libipw.h:468:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/intel/ipw2x00/libipw.h:476:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/intel/ipw2x00/libipw.h:592:36: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/ZrJqtUpCI+uCeb4D@cute
Sascha Hauer [Mon, 5 Aug 2024 06:39:15 +0000 (08:39 +0200)]
wifi: mwifiex: add support for WPA-PSK-SHA256
This adds support for the WPA-PSK AKM suite with SHA256 as hashing
method (WPA-PSK-SHA256). Tested with a wpa_supplicant provided AP
using key_mgmt=WPA-PSK-SHA256.
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20240717-mwifiex-wpa-psk-sha256-v2-2-eb53d5082b62@pengutronix.de
Acked-by: Brian Norris <briannorris@chromium.org>
Link: https://lore.kernel.org/r/20240723-mwifiex-wpa-psk-sha256-v3-3-025168a91da1@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20240805-mwifiex-wpa-psk-sha256-v4-3-e1eee80508e6@pengutronix.de
Sascha Hauer [Mon, 5 Aug 2024 06:39:14 +0000 (08:39 +0200)]
wifi: mwifiex: fix key_mgmt setting
bss_config->key_mgmt specifies the AKM suites that are usable in
hardware. This variable is set to specific values while iterating
over the advertised AKM suites. This means the final value of the
variable depends on the order of the entries in the AKM suites
array. Instead of setting the variable, just set the relevant bits
in the key_mgmt bit field to make us independent of the order of
entries.
This behaviour is derived from the downstream driver that does the
same.
Also, set bss_config->key_mgmt to zero explicitly right before the
loop. bss_config has been zero allocated by the caller already, but
do so again to save the reader from following the code path.
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Acked-by: Brian Norris <briannorris@chromium.org>
Link: https://lore.kernel.org/r/20240723-mwifiex-wpa-psk-sha256-v3-2-025168a91da1@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20240805-mwifiex-wpa-psk-sha256-v4-2-e1eee80508e6@pengutronix.de
Sascha Hauer [Mon, 5 Aug 2024 06:39:13 +0000 (08:39 +0200)]
wifi: mwifiex: simplify WPA flags setting
The WPA flags setting only depends on the wpa_versions bitfield and not
on the AKM suite, so move it out of the switch/case to simplify the code
a bit. Also set bss_config->protocol to zero explicitly. This is done
only to make the code clearer, bss_config has been zero alloced by the
caller, so should be zero already. No functional change intended.
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Acked-by: Brian Norris <briannorris@chromium.org>
Link: https://lore.kernel.org/r/20240723-mwifiex-wpa-psk-sha256-v3-1-025168a91da1@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20240805-mwifiex-wpa-psk-sha256-v4-1-e1eee80508e6@pengutronix.de
Toke Høiland-Jørgensen [Thu, 8 Aug 2024 10:37:57 +0000 (12:37 +0200)]
Revert "wifi: ath9k: use devm for request_irq()"
This reverts commit
92da4ce847bc5d942ddfdb102dba92f4e2797a59.
Felix pointed out that moving to devm for request_irq() can lead to a use after
free, and that avoiding that means having explicit frees that makes the devm
thing pretty pointless. So let's just revert the patch.
Link: https://lore.kernel.org/r/201f06b6-14f5-41bb-8897-49665cf14b66@nbd.name
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240808103758.11696-1-toke@toke.dk
Bitterblue Smith [Wed, 7 Aug 2024 22:23:06 +0000 (01:23 +0300)]
wifi: rtw88: Enable USB RX aggregation for 8822c/8822b/8821c
Enable USB RX aggregation when there is at least 1 Mbps RX or TX
traffic, otherwise disable it.
USB RX aggregation improves the RX speed of RTL8811CU on certain ARM
systems, like the NanoPi NEO Core2. Before: 28 Mbps, after: 231 Mbps.
It also improves the RX speed of RTL8822CU on some x86_64 systems.
Before: ~200 Mbps, after: ~300 Mbps.
The official drivers for these chips use the same logic for SDIO, but
for some reason the SDIO driver in rtw88 always enables RX aggregation,
so this patch only toggles aggregation for USB devices.
RTL8703B is likely not found in USB devices, and RTL8723DU doesn't like
aggregation.
Tested-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/b4c0d54c-6755-4b0f-9dd7-f9196fd74b68@gmail.com
Bitterblue Smith [Wed, 7 Aug 2024 22:21:36 +0000 (01:21 +0300)]
wifi: rtw88: usb: Support RX aggregation
The chips can be configured to aggregate several frames into a single
USB transfer. Modify rtw_usb_rx_handler() to support this case.
RX aggregation improves the RX speed of RTL8811CU on certain ARM
systems, like the NanoPi NEO Core2. It also improves the RX speed of
RTL8822CU on some x86_64 systems.
Currently none of the chips are configured to aggregate frames.
Tested with RTL8822CU, RTL8811CU, and RTL8723DU.
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/f845826d-de71-492d-9a22-e48c07989a1f@gmail.com
Bitterblue Smith [Wed, 7 Aug 2024 22:20:36 +0000 (01:20 +0300)]
wifi: rtw88: usb: Update the RX stats after every frame
Update the number of received unicast data frames and bytes every time
a frame is received. This is what the PCI and SDIO drivers do.
This has an influence on the power saving, bluetooth coexistence, and
(in a future patch) the use of RX aggregation.
Tested with RTL8822CU, RTL8811CU, and RTL8723DU.
Tested-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/75a2ca52-8f01-45c5-926f-d3a68ae3b284@gmail.com
Bitterblue Smith [Wed, 7 Aug 2024 22:19:36 +0000 (01:19 +0300)]
wifi: rtw88: usb: Init RX burst length according to USB speed
This is needed in order to make USB RX aggregation work with RTL8811CU
(and presumably RTL8822BU and RTL8822CU also).
I don't know what BIT_DMA_BURST_CNT, BIT_DMA_MODE, and BIT_DROP_DATA_EN
are doing.
Tested with RTL8822CU, RTL8811CU, and RTL8723DU.
The RX speed is unchanged in my tests.
Tested-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/ac569c6f-7129-4341-b523-901fe10cabff@gmail.com
Peter Robinson [Tue, 6 Aug 2024 08:22:31 +0000 (09:22 +0100)]
wifi: rtl8xxxu: add missing rtl8192cu USB IDs
The rtl8xxxu has all the rtl8192cu USB IDs except for the
following 3 so add them to the untested section so they
can be used with the rtl8xxxu as the rtl8192cu are well
supported.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240806082233.3837436-1-pbrobinson@gmail.com
Peter Robinson [Mon, 5 Aug 2024 22:19:04 +0000 (23:19 +0100)]
wifi: rtl8xxxu: drop reference to staging drivers
The Kconfig notes mention staging drivers that have
since been removed so update the driver's description
so it no longer references the staging rtl8723au and
rtl8192u drivers which have now been deleted.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240805221910.3765214-1-pbrobinson@gmail.com
Chin-Yen Lee [Mon, 5 Aug 2024 09:00:28 +0000 (17:00 +0800)]
wifi: rtw89: wow: add net-detect support for 8852c
Enable net-detect in WoWLan stub of 8852c, and declare
net-detect support up to 8 SSIDs.
Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240805090028.27768-6-pkshih@realtek.com
Chin-Yen Lee [Mon, 5 Aug 2024 09:00:27 +0000 (17:00 +0800)]
wifi: rtw89: wow: add delay option for net-detect
The delay option is the period in unit of second for WoWLAN firmware
to wait before the first scan. We get the option from cfg80211 and
practice it. Another, in some platform, WoWLAN firmware may found
configured network and then trigger resume process, before suspend
process is completed, lead to the wakeup function failed.
So the default value is set one to avoid the issue.
Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240805090028.27768-5-pkshih@realtek.com
Chin-Yen Lee [Mon, 5 Aug 2024 09:00:26 +0000 (17:00 +0800)]
wifi: rtw89: wow: add WoWLAN net-detect support
Net-detect is an option of WoWLAN to allow the device to
be woken up from suspend mode when configured network is detected.
When user enables net-detect and lets the device enter suspend
state, WoWLAN firmware will periodically scan until beacon or
probe response of configured networks are received. If configured
networks are detected, WoWLAN firmware will trigger resume process.
Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240805090028.27768-4-pkshih@realtek.com
Chin-Yen Lee [Mon, 5 Aug 2024 09:00:25 +0000 (17:00 +0800)]
wifi: rtw89: wow: implement PS mode for net-detect
When net-detect is enabled, WoWLAN firmware will periodically
scan until beacon or probe response of configured networks are
received. To reduce power consumption, the FW-IPS mode is
implemented to keep WiFi chip in idle mode between each scan.
The FW-IPS is controlled by WoWLAN firmware to turn of some critical
electrical components, and is different from the original IPS mode
which most electrical components are turned off.
Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240805090028.27768-3-pkshih@realtek.com
Ping-Ke Shih [Mon, 5 Aug 2024 09:00:24 +0000 (17:00 +0800)]
wifi: rtw89: 8852c: support firmware format up to v1
Driver has supported different WoWLAN reason code by commit
0e5210217768
("wifi: rtw89: wow: update WoWLAN reason register for different FW")
since firmware version 0.27.80.0. The old driver can't support two
kinds of WoWLAN reason, so increase firmware format to v1.
Also driver tables of BB and RF registers and power values will be added
into v1 format.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240805090028.27768-2-pkshih@realtek.com
Christophe JAILLET [Sun, 4 Aug 2024 06:32:44 +0000 (08:32 +0200)]
wifi: b43: Constify struct lpphy_tx_gain_table_entry
'struct lpphy_tx_gain_table_entry' are not modified in this driver.
Constifying this structure moves some data to a read-only section, so
increase overall security.
On a x86_64, with allmodconfig:
Before:
======
text data bss dec hex filename
16481 6232 0 22713 58b9 drivers/net/wireless/broadcom/b43/tables_lpphy.o
After:
=====
text data bss dec hex filename
22305 395 0 22700 58ac drivers/net/wireless/broadcom/b43/tables_lpphy.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-By: Michael Büsch <m@bues.ch>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/e33bc9e6dff4a5b6cd8d0ab5399aa1abac5bef9d.1722753127.git.christophe.jaillet@wanadoo.fr
Baochen Qiang [Wed, 10 Jul 2024 02:18:19 +0000 (10:18 +0800)]
wifi: ath12k: fix invalid AMPDU factor calculation in ath12k_peer_assoc_h_he()
Currently ampdu_factor is wrongly calculated in ath12k_peer_assoc_h_he(), fix it.
This is found during code review.
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4
Fixes:
d889913205cf ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices")
Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240710021819.87216-1-quic_bqiang@quicinc.com
P Praneesh [Sun, 31 Mar 2024 18:32:32 +0000 (00:02 +0530)]
wifi: ath12k: match WMI BSS chan info structure with firmware definition
struct wmi_pdev_bss_chan_info_event is not similar to the firmware
struct definition, this will cause some random failures.
Fix by matching the struct wmi_pdev_bss_chan_info_event with the
firmware structure definition.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Fixes:
d889913205cf ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices")
Signed-off-by: P Praneesh <quic_ppranees@quicinc.com>
Signed-off-by: Karthikeyan Kathirvel <quic_kathirve@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240331183232.2158756-3-quic_kathirve@quicinc.com
P Praneesh [Sun, 31 Mar 2024 18:32:31 +0000 (00:02 +0530)]
wifi: ath12k: fix BSS chan info request WMI command
Currently, the firmware returns incorrect pdev_id information in
WMI_PDEV_BSS_CHAN_INFO_EVENTID, leading to incorrect filling of
the pdev's survey information.
To prevent this issue, when requesting BSS channel information
through WMI_PDEV_BSS_CHAN_INFO_REQUEST_CMDID, firmware expects
pdev_id as one of the arguments in this WMI command.
Add pdev_id to the struct wmi_pdev_bss_chan_info_req_cmd and fill it
during ath12k_wmi_pdev_bss_chan_info_request(). This resolves the
issue of sending the correct pdev_id in WMI_PDEV_BSS_CHAN_INFO_EVENTID.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Fixes:
d889913205cf ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices")
Signed-off-by: P Praneesh <quic_ppranees@quicinc.com>
Signed-off-by: Karthikeyan Kathirvel <quic_kathirve@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240331183232.2158756-2-quic_kathirve@quicinc.com
Aditya Kumar Singh [Tue, 9 Jul 2024 05:58:17 +0000 (11:28 +0530)]
wifi: ath12k: restore ASPM for supported hardwares only
During PCI based hardware device start up, ASPM is disabled for all. And
once firmware is ready, it is restored back. However, not all hardwares
(for example QCN9274) supports ASPM. Hence there is a need to conditionally
restore ASPM back. Or else, for such hardwares, issue can be seen during
sending and receiving packets.
Introduce a new hardware param supports_aspm which identifies whether a
given hardware supports ASPM or not and then accordingly restore it.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240709055817.3371406-1-quic_adisi@quicinc.com
Toke Høiland-Jørgensen [Mon, 5 Aug 2024 11:02:22 +0000 (13:02 +0200)]
wifi: ath9k: Remove error checks when creating debugfs entries
We should not be checking the return values from debugfs creation at all: the
debugfs functions are designed to handle errors of previously called functions
and just transparently abort the creation of debugfs entries when debugfs is
disabled. If we check the return value and abort driver initialisation, we break
the driver if debugfs is disabled (such as when booting with debugfs=off).
Earlier versions of ath9k accidentally did the right thing by checking the
return value, but only for NULL, not for IS_ERR(). This was "fixed" by the two
commits referenced below, breaking ath9k with debugfs=off starting from the 6.6
kernel (as reported in the Bugzilla linked below).
Restore functionality by just getting rid of the return value check entirely.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=219122
Fixes:
1e4134610d93 ("wifi: ath9k: use IS_ERR() with debugfs_create_dir()")
Fixes:
6edb4ba6fb5b ("wifi: ath9k: fix parameter check in ath9k_init_debug()")
Reported-by: Daniel Tobias <dan.g.tob@gmail.com>
Tested-by: Daniel Tobias <dan.g.tob@gmail.com>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240805110225.19690-1-toke@toke.dk
Rosen Penev [Wed, 31 Jul 2024 21:03:08 +0000 (14:03 -0700)]
wifi: ath9k: use devm for gpio_request_one()
Using devm_gpio_request_one() is simpler as then we don't need to call
gpio_free().
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240731210312.7622-1-rosenp@gmail.com
Rosen Penev [Wed, 31 Jul 2024 21:02:40 +0000 (14:02 -0700)]
wifi: ath9k: use devm for request_irq()
Avoids having to manually call free_irq(). Simplifies code slightly.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240731210243.7467-1-rosenp@gmail.com
Dian-Syuan Yang [Wed, 31 Jul 2024 07:05:06 +0000 (15:05 +0800)]
wifi: rtw89: correct VHT TX rate on 20MHz connection
It may get wrong bitrate when connecting to AP set VHT 20MHz,
and thus we fix it to follow Wi-Fi spec.
Signed-off-by: Dian-Syuan Yang <dian_syuan0116@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240731070506.46100-6-pkshih@realtek.com
Kuan-Chung Chen [Wed, 31 Jul 2024 07:05:05 +0000 (15:05 +0800)]
wifi: rtw89: add support for HW encryption in unicast management frames
Add hardware encryption support for unicast management frames for
8922AE and 8852CE. Other chips will continue to use software
encryption for unicast management frames.
Signed-off-by: Kuan-Chung Chen <damon.chen@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240731070506.46100-5-pkshih@realtek.com
Chih-Kang Chang [Wed, 31 Jul 2024 07:05:04 +0000 (15:05 +0800)]
wifi: rtw89: avoid to add interface to list twice when SER
If SER L2 occurs during the WoWLAN resume flow, the add interface flow
is triggered by ieee80211_reconfig(). However, due to
rtw89_wow_resume() return failure, it will cause the add interface flow
to be executed again, resulting in a double add list and causing a kernel
panic. Therefore, we have added a check to prevent double adding of the
list.
list_add double add: new=
ffff99d6992e2010, prev=
ffff99d6992e2010, next=
ffff99d695302628.
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:37!
invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
CPU: 0 PID: 9 Comm: kworker/0:1 Tainted: G W O
6.6.30-02659-gc18865c4dfbd #1
770df2933251a0e3c888ba69d1053a817a6376a7
Hardware name: HP Grunt/Grunt, BIOS Google_Grunt.11031.169.0 06/24/2021
Workqueue: events_freezable ieee80211_restart_work [mac80211]
RIP: 0010:__list_add_valid_or_report+0x5e/0xb0
Code: c7 74 18 48 39 ce 74 13 b0 01 59 5a 5e 5f 41 58 41 59 41 5a 5d e9 e2 d6 03 00 cc 48 c7 c7 8d 4f 17 83 48 89 c2 e8 02 c0 00 00 <0f> 0b 48 c7 c7 aa 8c 1c 83 e8 f4 bf 00 00 0f 0b 48 c7 c7 c8 bc 12
RSP: 0018:
ffffa91b8007bc50 EFLAGS:
00010246
RAX:
0000000000000058 RBX:
ffff99d6992e0900 RCX:
a014d76c70ef3900
RDX:
ffffa91b8007bae8 RSI:
00000000ffffdfff RDI:
0000000000000001
RBP:
ffffa91b8007bc88 R08:
0000000000000000 R09:
ffffa91b8007bae0
R10:
00000000ffffdfff R11:
ffffffff83a79800 R12:
ffff99d695302060
R13:
ffff99d695300900 R14:
ffff99d6992e1be0 R15:
ffff99d6992e2010
FS:
0000000000000000(0000) GS:
ffff99d6aac00000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2:
000078fbdba43480 CR3:
000000010e464000 CR4:
00000000001506f0
Call Trace:
<TASK>
? __die_body+0x1f/0x70
? die+0x3d/0x60
? do_trap+0xa4/0x110
? __list_add_valid_or_report+0x5e/0xb0
? do_error_trap+0x6d/0x90
? __list_add_valid_or_report+0x5e/0xb0
? handle_invalid_op+0x30/0x40
? __list_add_valid_or_report+0x5e/0xb0
? exc_invalid_op+0x3c/0x50
? asm_exc_invalid_op+0x16/0x20
? __list_add_valid_or_report+0x5e/0xb0
rtw89_ops_add_interface+0x309/0x310 [rtw89_core
7c32b1ee6854761c0321027c8a58c5160e41f48f]
drv_add_interface+0x5c/0x130 [mac80211
83e989e6e616bd5b4b8a2b0a9f9352a2c385a3bc]
ieee80211_reconfig+0x241/0x13d0 [mac80211
83e989e6e616bd5b4b8a2b0a9f9352a2c385a3bc]
? finish_wait+0x3e/0x90
? synchronize_rcu_expedited+0x174/0x260
? sync_rcu_exp_done_unlocked+0x50/0x50
? wake_bit_function+0x40/0x40
ieee80211_restart_work+0xf0/0x140 [mac80211
83e989e6e616bd5b4b8a2b0a9f9352a2c385a3bc]
process_scheduled_works+0x1e5/0x480
worker_thread+0xea/0x1e0
kthread+0xdb/0x110
? move_linked_works+0x90/0x90
? kthread_associate_blkcg+0xa0/0xa0
ret_from_fork+0x3b/0x50
? kthread_associate_blkcg+0xa0/0xa0
ret_from_fork_asm+0x11/0x20
</TASK>
Modules linked in: dm_integrity async_xor xor async_tx lz4 lz4_compress zstd zstd_compress zram zsmalloc rfcomm cmac uinput algif_hash algif_skcipher af_alg btusb btrtl iio_trig_hrtimer industrialio_sw_trigger btmtk industrialio_configfs btbcm btintel uvcvideo videobuf2_vmalloc iio_trig_sysfs videobuf2_memops videobuf2_v4l2 videobuf2_common uvc snd_hda_codec_hdmi veth snd_hda_intel snd_intel_dspcfg acpi_als snd_hda_codec industrialio_triggered_buffer kfifo_buf snd_hwdep industrialio i2c_piix4 snd_hda_core designware_i2s ip6table_nat snd_soc_max98357a xt_MASQUERADE xt_cgroup snd_soc_acp_rt5682_mach fuse rtw89_8922ae(O) rtw89_8922a(O) rtw89_pci(O) rtw89_core(O) 8021q mac80211(O) bluetooth ecdh_generic ecc cfg80211 r8152 mii joydev
gsmi: Log Shutdown Reason 0x03
---[ end trace
0000000000000000 ]---
Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240731070506.46100-4-pkshih@realtek.com
Po-Hao Huang [Wed, 31 Jul 2024 07:05:03 +0000 (15:05 +0800)]
wifi: rtw89: 8922a: Add new fields for scan offload H2C command
Update scan offload H2C format to fit firmware version 35.21.
The new fields indicate lengths of variable length members, so
when driver and firmware are using mismatch version, FW could
handle the parsing better.
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240731070506.46100-3-pkshih@realtek.com
Kuan-Chung Chen [Wed, 31 Jul 2024 07:05:02 +0000 (15:05 +0800)]
wifi: rtw89: 8922a: new implementation for RFK pre-notify H2C
For firmware version 0.35.31 and above, update H2C RFK
pre-notify to new implementation. Rename existing H2C
to v0 for backward compatibility.
Signed-off-by: Kuan-Chung Chen <damon.chen@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240731070506.46100-2-pkshih@realtek.com
Dmitry Kandybka [Thu, 1 Aug 2024 10:15:31 +0000 (13:15 +0300)]
wifi: brcmsmac: clean up unnecessary current_ampdu_cnt and related checks
In 'brcms_c_ffpld_check_txfunfl()', 'current_ampdu_cnt' is hardcoded to
zero, so 'txunfl_ratio' is always zero as well and some dead code can be
removed. Compile tested only.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Dmitry Kandybka <d.kandybka@gmail.com>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20240801101531.6626-1-d.kandybka@gmail.com
Arend van Spriel [Sat, 27 Jul 2024 18:56:17 +0000 (20:56 +0200)]
wifi: brcmfmac: introducing fwil query functions
When the firmware interface layer was refactored it provided various
"get" and "set" functions. For the "get" in some cases a parameter
needed to be passed down to firmware as a key indicating what to
"get" turning the output parameter of the "get" function into an
input parameter as well. To accommodate this the "get" function blindly
copies the parameter which in some places resulted in an uninitialized
warnings from the compiler. These have been fixed by initializing the
input parameter in the past. Recently another batch of similar fixes
were submitted to address clang static checker warnings [1].
Proposing another solution by introducing a "query" variant which is used
when the (input) parameter is needed by firmware. The "get" variant will
only fill the (output) parameter with the result received from firmware
taking care of proper endianess conversion.
[1] https://lore.kernel.org/all/
20240702122450.
2213833-1-suhui@nfschina.com/
Fixes:
81f5dcb80830 ("brcmfmac: refactor firmware interface layer.")
Reported-by: Su Hui <suhui@nfschina.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20240727185617.253210-1-arend.vanspriel@broadcom.com
Christophe JAILLET [Sun, 21 Jul 2024 07:40:19 +0000 (09:40 +0200)]
wifi: brcmfmac: fwsignal: Use struct_size() to simplify brcmf_fws_rxreorder()
In the "struct brcmf_ampdu_rx_reorder", change the 'pktslots' field into
flexible array.
It saves the size of a pointer when the memory is allocated and avoids
an indirection when the array is used.
It also removes the usage of a pointer arithmetic and saves a few lines of
code.
Finally, struct_size() can be used. It is not a must have here, because
it is easy to see that buf_size can not overflow, but still, it is a good
practice.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/f4ca6b887ca1290c71e76247218adea4d1c42442.1721547559.git.christophe.jaillet@wanadoo.fr
David Lin [Thu, 4 Jul 2024 03:30:01 +0000 (11:30 +0800)]
wifi: mwifiex: add host mlme for AP mode
Add host based MLME to enable WPA3 functionalities in AP mode.
This feature required a firmware with the corresponding V2 Key API
support. The feature (WPA3) is currently enabled and verified only
on IW416. Also, verified no regression with change when host MLME
is disabled.
Signed-off-by: David Lin <yu-hao.lin@nxp.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Acked-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20240704033001.603419-3-yu-hao.lin@nxp.com
David Lin [Thu, 4 Jul 2024 03:30:00 +0000 (11:30 +0800)]
wifi: mwifiex: add host mlme for client mode
Add host based MLME to enable WPA3 functionalities in client mode.
This feature required a firmware with the corresponding V2 Key API
support. The feature (WPA3) is currently enabled and verified only
on IW416. Also, verified no regression with change when host MLME
is disabled.
Signed-off-by: David Lin <yu-hao.lin@nxp.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Acked-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20240704033001.603419-2-yu-hao.lin@nxp.com
Sascha Hauer [Thu, 30 May 2024 13:01:56 +0000 (15:01 +0200)]
wifi: mwifiex: increase max_num_akm_suites
The maximum number of AKM suites will be set to two if not specified by
the driver. Set it to CFG80211_MAX_NUM_AKM_SUITES to let userspace
specify up to ten AKM suites in the akm_suites array.
Without only the first two AKM suites will be used, further ones are
ignored.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20240530130156.1651174-1-s.hauer@pengutronix.de
Zong-Zhe Yang [Sat, 27 Jul 2024 08:06:50 +0000 (16:06 +0800)]
wifi: rtw89: pass chanctx_idx to rtw89_btc_{path_}phymap()
Originally, rtw89_btc_phymap() and rtw89_btc_path_phymap() access chan
with hard-code RTW89_CHANCTX_0. But, they are problematic when the chip
supports multiple channels.
So, change their prototype and pass chanctx_idx ahead. Let callers still
pass RTW89_CHANCTX_0 for now, but we will refine callers in the following.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240727080650.12195-8-pkshih@realtek.com
Zong-Zhe Yang [Sat, 27 Jul 2024 08:06:49 +0000 (16:06 +0800)]
wifi: rtw89: fw: correct chan access in assoc_cmac_tbl_g7 and update_beacon_be
Originally, these H2C commands access chan with hard-code RTW89_CHANCTX_0.
They are problematic when the chip supports multiple channels. So, correct
them by accessing right chan under rtwvif.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240727080650.12195-7-pkshih@realtek.com
Zong-Zhe Yang [Sat, 27 Jul 2024 08:06:48 +0000 (16:06 +0800)]
wifi: rtw89: pass rtwvif to RFK scan
For chips supporting multiple channels, they need to get target info
from rtwvif, e.g. PHY index and Chanctx index.
So, change rfk_scan prototype and pass rtwvif ahead.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240727080650.12195-6-pkshih@realtek.com
Zong-Zhe Yang [Sat, 27 Jul 2024 08:06:47 +0000 (16:06 +0800)]
wifi: rtw89: pass rtwvif to RFK channel
For chips supporting multiple channels, they need to get target info
from rtwvif, e.g. PHY index and Chanctx index.
So, change rfk_channel prototype and pass rtwvif ahead.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240727080650.12195-5-pkshih@realtek.com
Zong-Zhe Yang [Sat, 27 Jul 2024 08:06:46 +0000 (16:06 +0800)]
wifi: rtw89: rename sub_entity to chanctx
Originally, we planed to fill MAC_0/1 indicators with chanctx and
use sub_entity_xxx for these things. However, there are some reasons
listed below which make us give up this plan after we know our Wi-Fi 7
HW design.
1. one link is bound to one HW band during its life time
but, one link might change chanctx dynamically
2. in concurrent mode, assume 1st vif is MLD
1st vif's 2nd link might use the same chanctx as 2nd vif
but, they are not on the same HW band
So, we let sub_entity_xxx stuffs deal with only chanctx now. And, to be
more readable, we rename sub_entity related words to chanctx.
No logic is changed.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240727080650.12195-4-pkshih@realtek.com
Zong-Zhe Yang [Sat, 27 Jul 2024 08:06:45 +0000 (16:06 +0800)]
wifi: rtw89: mcc: stop at a role holding chanctx
In general, MCC (multi-channel concurrency) stops when some chanctx is
unassigned. Originally, we let FW to stop at a fixed role. However, it
might be the one to be unassigned.
So, iterate MCC roles and select one which is still holding chanctx.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240727080650.12195-3-pkshih@realtek.com
Zong-Zhe Yang [Sat, 27 Jul 2024 08:06:44 +0000 (16:06 +0800)]
wifi: rtw89: chan: refine MCC re-plan flow when unassign chanctx
Originally during unassign-chanctx, MCC (multi-channel concurrency) is
re-planed before set-channel if need. But, we might calculate MCC stuffs
based on old channel info. And, the following set-channel might be racing
with FW MCC state mechanism. So, we refine this flow. Now, if MCC re-plan
is needed here, it will be done after set-channel.
Besides, to be more rigorous, we now ensure entity isn't paused before we
deal with MCC things here.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240727080650.12195-2-pkshih@realtek.com
Dmitry Antipov [Fri, 26 Jul 2024 11:46:57 +0000 (14:46 +0300)]
wifi: rtw88: always wait for both firmware loading attempts
In 'rtw_wait_firmware_completion()', always wait for both (regular and
wowlan) firmware loading attempts. Otherwise if 'rtw_usb_intf_init()'
has failed in 'rtw_usb_probe()', 'rtw_usb_disconnect()' may issue
'ieee80211_free_hw()' when one of 'rtw_load_firmware_cb()' (usually
the wowlan one) is still in progress, causing UAF detected by KASAN.
Fixes:
c8e5695eae99 ("rtw88: load wowlan firmware if wowlan is supported")
Reported-by: syzbot+6c6c08700f9480c41fe3@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=
6c6c08700f9480c41fe3
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240726114657.25396-1-dmantipov@yandex.ru
Zong-Zhe Yang [Wed, 24 Jul 2024 05:26:26 +0000 (13:26 +0800)]
wifi: rtw89: fix typo of rtw89_phy_ra_updata_XXX
`updata` should be `update`
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240724052626.12774-5-pkshih@realtek.com
Ping-Ke Shih [Wed, 24 Jul 2024 05:26:25 +0000 (13:26 +0800)]
wifi: rtw89: 885xb: reset IDMEM mode to prevent download firmware failure
For different firmware type, it could change IDMEM mode, so reset it to
default to avoid encountering error for RTL8851B/RTL8852B/RTL8852BT
if that kind of firmware was downloaded before.
rtw89_8851be 0000:02:00.0: Firmware version 0.29.41.3, cmd version 0, type 5
rtw89_8851be 0000:02:00.0: Firmware version 0.29.41.3, cmd version 0, type 3
rtw89_8851be 0000:02:00.0: MAC has already powered on
rtw89_8851be 0000:02:00.0: fw security fail
rtw89_8851be 0000:02:00.0: download firmware fail
rtw89_8851be 0000:02:00.0: [ERR]fwdl 0x1E0 = 0x62
rtw89_8851be 0000:02:00.0: [ERR]fwdl 0x83F2 = 0x8
rtw89_8851be 0000:02:00.0: [ERR]fw PC = 0xb892f51c
rtw89_8851be 0000:02:00.0: [ERR]fw PC = 0xb892f524
rtw89_8851be 0000:02:00.0: [ERR]fw PC = 0xb892f51c
rtw89_8851be 0000:02:00.0: [ERR]fw PC = 0xb892f500
rtw89_8851be 0000:02:00.0: [ERR]fw PC = 0xb892f51c
rtw89_8851be 0000:02:00.0: [ERR]fw PC = 0xb892f53c
rtw89_8851be 0000:02:00.0: [ERR]fw PC = 0xb892f520
rtw89_8851be 0000:02:00.0: [ERR]fw PC = 0xb892f520
rtw89_8851be 0000:02:00.0: [ERR]fw PC = 0xb892f508
rtw89_8851be 0000:02:00.0: [ERR]fw PC = 0xb892f534
rtw89_8851be 0000:02:00.0: [ERR]fw PC = 0xb892f520
rtw89_8851be 0000:02:00.0: [ERR]fw PC = 0xb892f534
rtw89_8851be 0000:02:00.0: [ERR]fw PC = 0xb892f508
rtw89_8851be 0000:02:00.0: [ERR]fw PC = 0xb892f53c
rtw89_8851be 0000:02:00.0: [ERR]fw PC = 0xb892f524
rtw89_8851be 0000:02:00.0: failed to setup chip information
rtw89_8851be: probe of 0000:02:00.0 failed with error -16
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240724052626.12774-4-pkshih@realtek.com
Kuan-Chung Chen [Wed, 24 Jul 2024 05:26:24 +0000 (13:26 +0800)]
wifi: rtw89: add support for hardware rfkill
Add support for ieee80211::rfkill_poll ops. This enables periodic
monitoring of the hardware rfkill state, triggering updates when the
status changes.
Signed-off-by: Kuan-Chung Chen <damon.chen@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240724052626.12774-3-pkshih@realtek.com
Kuan-Chung Chen [Wed, 24 Jul 2024 05:26:23 +0000 (13:26 +0800)]
wifi: rtw89: add EVM statistics for 1SS rate
To more accurately debug performance issues, EVM statistics will
differentiate between different space streams, and only beacon
and data frames will be included.
Signed-off-by: Kuan-Chung Chen <damon.chen@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240724052626.12774-2-pkshih@realtek.com
Po-Hao Huang [Wed, 24 Jul 2024 05:05:01 +0000 (13:05 +0800)]
wifi: rtw88: 8822c: Parse channel from IE to correct invalid hardware reports
For CCK packets we could get incorrect reports from hardware.
And this causes wrong frequencies being reported. Parse the channel
information from IE if provided by AP to fix this.
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240724050501.7550-1-pkshih@realtek.com
Dmitry Kandybka [Thu, 25 Jul 2024 11:17:43 +0000 (14:17 +0300)]
wifi: ath9k: fix possible integer overflow in ath9k_get_et_stats()
In 'ath9k_get_et_stats()', promote TX stats counters to 'u64'
to avoid possible integer overflow. Compile tested only.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Dmitry Kandybka <d.kandybka@gmail.com>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240725111743.14422-1-d.kandybka@gmail.com
Thorsten Blum [Wed, 10 Jul 2024 18:57:44 +0000 (20:57 +0200)]
wifi: ath9k: Use swap() to improve ath9k_hw_get_nf_hist_mid()
Use the swap() macro to simplify the ath9k_hw_get_nf_hist_mid() function
and improve its readability.
Fixes the following Coccinelle/coccicheck warning reported by
swap.cocci:
WARNING opportunity for swap()
Compile-tested only.
Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240710185743.709742-2-thorsten.blum@toblux.com
Heiner Kallweit [Tue, 9 Apr 2024 20:28:27 +0000 (22:28 +0200)]
wifi: ath9k: use unmanaged PCI functions in ath9k_pci_owl_loader
Only managed PCI resource in the driver is the iomapped bar. However the bar
is unmapped in the same function. Therefore using the device-managed
versions just causes overhead, w/o any benefit. Once this is switched to the
non-managed versions, there's nothing left to be managed for
pcim_enable_device(). Therefore we can reduce overhead here too and switch to
the non-managed version as well. This includes removing the no longer needed
call to pcim_pin_device().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/3b46f6c7-4372-4cc9-9a7c-2c1c06d29324@gmail.com
Bitterblue Smith [Tue, 23 Jul 2024 19:32:59 +0000 (22:32 +0300)]
wifi: rtw88: 8703b: Fix reported RX band width
The definition of GET_RX_DESC_BW is incorrect. Fix it according to the
GET_RX_STATUS_DESC_BW_8703B macro from the official driver.
Tested only with RTL8812AU, which uses the same bits.
Cc: stable@vger.kernel.org
Fixes:
9bb762b3a957 ("wifi: rtw88: Add definitions for 8703b chip")
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Tested-by: Fiona Klute <fiona.klute@gmx.de>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/1cfed9d5-4304-4b96-84c5-c347f59fedb9@gmail.com
Bitterblue Smith [Tue, 23 Jul 2024 19:31:36 +0000 (22:31 +0300)]
wifi: rtw88: 8822c: Fix reported RX band width
"iw dev wlp2s0 station dump" shows incorrect rx bitrate:
tx bitrate: 866.7 MBit/s VHT-MCS 9 80MHz short GI VHT-NSS 2
rx bitrate: 86.7 MBit/s VHT-MCS 9 VHT-NSS 1
This is because the RX band width is calculated incorrectly. Fix the
calculation according to the phydm_rxsc_2_bw() function from the
official drivers.
After:
tx bitrate: 866.7 MBit/s VHT-MCS 9 80MHz short GI VHT-NSS 2
rx bitrate: 390.0 MBit/s VHT-MCS 9 80MHz VHT-NSS 1
It also works correctly with the AP configured for 20 MHz and 40 MHz.
Tested with RTL8822CE.
Cc: stable@vger.kernel.org
Fixes:
e3037485c68e ("rtw88: new Realtek 802.11ac driver")
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/bca8949b-e2bd-4515-98fd-70d3049a0097@gmail.com
Ping-Ke Shih [Sat, 20 Jul 2024 02:13:40 +0000 (10:13 +0800)]
wifi: rtw89: 8852bt: add 8852BE-VT to Makefile and Kconfig
RTL8852BE-VT is a WiFi 6 2x2 chip, which can operate on 2/5 GHz channels
and 80MHz bandwidth.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240720021340.12102-8-pkshih@realtek.com
Ping-Ke Shih [Sat, 20 Jul 2024 02:13:39 +0000 (10:13 +0800)]
wifi: rtw89: 8852bte: add PCI entry of 8852BE-VT
PCI device ID 10ec:b520 of RTL8852BE-VT is added as PCI entry, and define
chip capabilities for driver common routines.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240720021340.12102-7-pkshih@realtek.com
Ping-Ke Shih [Sat, 20 Jul 2024 02:13:38 +0000 (10:13 +0800)]
wifi: rtw89: 8852bt: declare firmware features of RTL8852BT
Firmware features are enabled after being supported, including TX wake,
firmware crash simulation, hardware scan.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240720021340.12102-6-pkshih@realtek.com
Ping-Ke Shih [Sat, 20 Jul 2024 02:13:37 +0000 (10:13 +0800)]
wifi: rtw89: 8852bt: add chip_ops of RTL8852BT
Add chip_info of RTL8852BT accordingly, including power on/off function,
BB reset, TSSI settings while setting channel, RF calibration, and
BT coexistence.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240720021340.12102-5-pkshih@realtek.com
Ping-Ke Shih [Sat, 20 Jul 2024 02:13:36 +0000 (10:13 +0800)]
wifi: rtw89: 8852bt: add chip_info of RTL8852BT
Add chip_info of RTL8852BT accordingly, including firmware elements
support, MAC memory quota (WDE, PLE and etc), SER IMR used by firmware,
BTC registers, register based H2C/C2H, WoWLAN stub.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240720021340.12102-4-pkshih@realtek.com
Ping-Ke Shih [Sat, 20 Jul 2024 02:13:35 +0000 (10:13 +0800)]
wifi: rtw89: 8852bt: rfk: use predefined string choice for DPK enable/disable
clang warns precedence of '?:' and '&'. Even though original logic is
correct, use str_enable_disable() to avoid clang confusing. Another way to
fix is to add parentheses around '&', but I choose former one.
>> drivers/net/wireless/realtek/rtw89/rtw8852bt_rfk.c:1827:46: warning:
operator '?:' has lower precedence than '&'; '&' will be evaluated
first [-Wbitwise-conditional-parentheses]
1827 | kidx, dpk->is_dpk_enable & off_reverse ? "enable" : "disable");
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/
202407200741.dMG9uvHU-lkp@intel.com/
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240720021340.12102-3-pkshih@realtek.com
Ping-Ke Shih [Sat, 20 Jul 2024 02:13:34 +0000 (10:13 +0800)]
wifi: rtw89: 8852bt: add set_channel_rf
Add RF part of set_channel() is to configure RF registers, and then
hardware can TX/RX on specified frequency and bandwidth.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240720021340.12102-2-pkshih@realtek.com
Zong-Zhe Yang [Thu, 18 Jul 2024 07:06:16 +0000 (15:06 +0800)]
wifi: rtw89: select WANT_DEV_COREDUMP
We have invoked device coredump when fw crash.
Should select WANT_DEV_COREDUMP by ourselves.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240718070616.42217-2-pkshih@realtek.com
Zong-Zhe Yang [Thu, 18 Jul 2024 07:06:15 +0000 (15:06 +0800)]
wifi: rtw88: select WANT_DEV_COREDUMP
We have invoked device coredump when fw crash.
Should select WANT_DEV_COREDUMP by ourselves.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240718070616.42217-1-pkshih@realtek.com
Ping-Ke Shih [Thu, 18 Jul 2024 06:41:55 +0000 (14:41 +0800)]
wifi: rtw88: debugfs: support multiple adapters debugging
Originally in order to read partial registers from large area, we write
a range value stored into a static variable and read registers according
to the static variable.
However, if we install more than one adapters supported by this driver,
the static variables will be overwritten by latter adapters. To resolve
the problem, move the static variables to struct rtw_dev for each adapter.
With changes, smatch spends too much time to parse rtw_debugfs_init():
debug.c:1289 rtw_debugfs_init() parse error: turning off implications
after 60 seconds
Move stuffs of adding debugfs entries to three rtw_debugfs_add_xxx()
functions.
Reported-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Closes: https://lore.kernel.org/linux-wireless/
cd6a2acf3c2c36d938b40140b52a779516f446a9.camel@realtek.com/T/#m27662022c70d9f893ba96f6c6a8dd8fce2434dfe
Tested-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240718064155.38955-1-pkshih@realtek.com
Linus Torvalds [Sun, 28 Jul 2024 21:19:55 +0000 (14:19 -0700)]
Linux 6.11-rc1
Linus Torvalds [Sun, 28 Jul 2024 21:02:48 +0000 (14:02 -0700)]
Merge tag 'kbuild-fixes-v6.11' of git://git./linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- Fix RPM package build error caused by an incorrect locale setup
- Mark modules.weakdep as ghost in RPM package
- Fix the odd combination of -S and -c in stack protector scripts,
which is an error with the latest Clang
* tag 'kbuild-fixes-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: Fix '-S -c' in x86 stack protector scripts
kbuild: rpm-pkg: ghost modules.weakdep file
kbuild: rpm-pkg: Fix C locale setup
Linus Torvalds [Sun, 28 Jul 2024 20:50:01 +0000 (13:50 -0700)]
minmax: simplify and clarify min_t()/max_t() implementation
This simplifies the min_t() and max_t() macros by no longer making them
work in the context of a C constant expression.
That means that you can no longer use them for static initializers or
for array sizes in type definitions, but there were only a couple of
such uses, and all of them were converted (famous last words) to use
MIN_T/MAX_T instead.
Cc: David Laight <David.Laight@aculab.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 28 Jul 2024 20:03:48 +0000 (13:03 -0700)]
minmax: add a few more MIN_T/MAX_T users
Commit
3a7e02c040b1 ("minmax: avoid overly complicated constant
expressions in VM code") added the simpler MIN_T/MAX_T macros in order
to avoid some excessive expansion from the rather complicated regular
min/max macros.
The complexity of those macros stems from two issues:
(a) trying to use them in situations that require a C constant
expression (in static initializers and for array sizes)
(b) the type sanity checking
and MIN_T/MAX_T avoids both of these issues.
Now, in the whole (long) discussion about all this, it was pointed out
that the whole type sanity checking is entirely unnecessary for
min_t/max_t which get a fixed type that the comparison is done in.
But that still leaves min_t/max_t unnecessarily complicated due to
worries about the C constant expression case.
However, it turns out that there really aren't very many cases that use
min_t/max_t for this, and we can just force-convert those.
This does exactly that.
Which in turn will then allow for much simpler implementations of
min_t()/max_t(). All the usual "macros in all upper case will evaluate
the arguments multiple times" rules apply.
We should do all the same things for the regular min/max() vs MIN/MAX()
cases, but that has the added complexity of various drivers defining
their own local versions of MIN/MAX, so that needs another level of
fixes first.
Link: https://lore.kernel.org/all/b47fad1d0cf8449886ad148f8c013dae@AcuMS.aculab.com/
Cc: David Laight <David.Laight@aculab.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 28 Jul 2024 18:51:51 +0000 (11:51 -0700)]
Merge tag 'ubifs-for-linus-6.11-rc1-take2' of git://git./linux/kernel/git/rw/ubifs
Pull UBI and UBIFS updates from Richard Weinberger:
- Many fixes for power-cut issues by Zhihao Cheng
- Another ubiblock error path fix
- ubiblock section mismatch fix
- Misc fixes all over the place
* tag 'ubifs-for-linus-6.11-rc1-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs:
ubi: Fix ubi_init() ubiblock_exit() section mismatch
ubifs: add check for crypto_shash_tfm_digest
ubifs: Fix inconsistent inode size when powercut happens during appendant writing
ubi: block: fix null-pointer-dereference in ubiblock_create()
ubifs: fix kernel-doc warnings
ubifs: correct UBIFS_DFS_DIR_LEN macro definition and improve code clarity
mtd: ubi: Restore missing cleanup on ubi_init() failure path
ubifs: dbg_orphan_check: Fix missed key type checking
ubifs: Fix unattached inode when powercut happens in creating
ubifs: Fix space leak when powercut happens in linking tmpfile
ubifs: Move ui->data initialization after initializing security
ubifs: Fix adding orphan entry twice for the same inode
ubifs: Remove insert_dead_orphan from replaying orphan process
Revert "ubifs: ubifs_symlink: Fix memleak of inode->i_link in error path"
ubifs: Don't add xattr inode into orphan area
ubifs: Fix unattached xattr inode if powercut happens after deleting
mtd: ubi: avoid expensive do_div() on 32-bit machines
mtd: ubi: make ubi_class constant
ubi: eba: properly rollback inside self_check_eba
Nathan Chancellor [Fri, 26 Jul 2024 18:05:00 +0000 (11:05 -0700)]
kbuild: Fix '-S -c' in x86 stack protector scripts
After a recent change in clang to stop consuming all instances of '-S'
and '-c' [1], the stack protector scripts break due to the kernel's use
of -Werror=unused-command-line-argument to catch cases where flags are
not being properly consumed by the compiler driver:
$ echo | clang -o - -x c - -S -c -Werror=unused-command-line-argument
clang: error: argument unused during compilation: '-c' [-Werror,-Wunused-command-line-argument]
This results in CONFIG_STACKPROTECTOR getting disabled because
CONFIG_CC_HAS_SANE_STACKPROTECTOR is no longer set.
'-c' and '-S' both instruct the compiler to stop at different stages of
the pipeline ('-S' after compiling, '-c' after assembling), so having
them present together in the same command makes little sense. In this
case, the test wants to stop before assembling because it is looking at
the textual assembly output of the compiler for either '%fs' or '%gs',
so remove '-c' from the list of arguments to resolve the error.
All versions of GCC continue to work after this change, along with
versions of clang that do or do not contain the change mentioned above.
Cc: stable@vger.kernel.org
Fixes:
4f7fd4d7a791 ("[PATCH] Add the -fstack-protector option to the CFLAGS")
Fixes:
60a5317ff0f4 ("x86: implement x86_32 stack protector")
Link: https://github.com/llvm/llvm-project/commit/6461e537815f7fa68cef06842505353cf5600e9c
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Richard Weinberger [Sat, 13 Jul 2024 07:35:19 +0000 (09:35 +0200)]
ubi: Fix ubi_init() ubiblock_exit() section mismatch
Since ubiblock_exit() is now called from an init function,
the __exit section no longer makes sense.
Cc: Ben Hutchings <bwh@kernel.org>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/
202407131403.wZJpd8n2-lkp@intel.com/
Signed-off-by: Richard Weinberger <richard@nod.at>
Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com>
Linus Torvalds [Sun, 28 Jul 2024 17:52:15 +0000 (10:52 -0700)]
Merge tag 'v6.11-merge' of git://git./linux/kernel/git/lenb/linux
Pull turbostat updates from Len Brown:
- Enable turbostat extensions to add both perf and PMT (Intel
Platform Monitoring Technology) counters via the cmdline
- Demonstrate PMT access with built-in support for Meteor Lake's
Die C6 counter
* tag 'v6.11-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
tools/power turbostat: version 2024.07.26
tools/power turbostat: Include umask=%x in perf counter's config
tools/power turbostat: Document PMT in turbostat.8
tools/power turbostat: Add MTL's PMT DC6 builtin counter
tools/power turbostat: Add early support for PMT counters
tools/power turbostat: Add selftests for added perf counters
tools/power turbostat: Add selftests for SMI, APERF and MPERF counters
tools/power turbostat: Move verbose counter messages to level 2
tools/power turbostat: Move debug prints from stdout to stderr
tools/power turbostat: Fix typo in turbostat.8
tools/power turbostat: Add perf added counter example to turbostat.8
tools/power turbostat: Fix formatting in turbostat.8
tools/power turbostat: Extend --add option with perf counters
tools/power turbostat: Group SMI counter with APERF and MPERF
tools/power turbostat: Add ZERO_ARRAY for zero initializing builtin array
tools/power turbostat: Replace enum rapl_source and cstate_source with counter_source
tools/power turbostat: Remove anonymous union from rapl_counter_info_t
tools/power/turbostat: Switch to new Intel CPU model defines
Linus Torvalds [Sun, 28 Jul 2024 16:33:28 +0000 (09:33 -0700)]
Merge tag 'cxl-for-6.11' of git://git./linux/kernel/git/cxl/cxl
Pull CXL updates from Dave Jiang:
"Core:
- A CXL maturity map has been added to the documentation to detail
the current state of CXL enabling.
It provides the status of the current state of various CXL features
to inform current and future contributors of where things are and
which areas need contribution.
- A notifier handler has been added in order for a newly created CXL
memory region to trigger the abstract distance metrics calculation.
This should bring parity for CXL memory to the same level vs
hotplugged DRAM for NUMA abstract distance calculation. The
abstract distance reflects relative performance used for memory
tiering handling.
- An addition for XOR math has been added to address the CXL DPA to
SPA translation.
CXL address translation did not support address interleave math
with XOR prior to this change.
Fixes:
- Fix to address race condition in the CXL memory hotplug notifier
- Add missing MODULE_DESCRIPTION() for CXL modules
- Fix incorrect vendor debug UUID define
Misc:
- A warning has been added to inform users of an unsupported
configuration when mixing CXL VH and RCH/RCD hierarchies
- The ENXIO error code has been replaced with EBUSY for inject poison
limit reached via debugfs and cxl-test support
- Moving the PCI config read in cxl_dvsec_rr_decode() to avoid
unnecessary PCI config reads
- A refactor to a common struct for DRAM and general media CXL
events"
* tag 'cxl-for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
cxl/core/pci: Move reading of control register to immediately before usage
cxl: Remove defunct code calculating host bridge target positions
cxl/region: Verify target positions using the ordered target list
cxl: Restore XOR'd position bits during address translation
cxl/core: Fold cxl_trace_hpa() into cxl_dpa_to_hpa()
cxl/test: Replace ENXIO with EBUSY for inject poison limit reached
cxl/memdev: Replace ENXIO with EBUSY for inject poison limit reached
cxl/acpi: Warn on mixed CXL VH and RCH/RCD Hierarchy
cxl/core: Fix incorrect vendor debug UUID define
Documentation: CXL Maturity Map
cxl/region: Simplify cxl_region_nid()
cxl/region: Support to calculate memory tier abstract distance
cxl/region: Fix a race condition in memory hotplug notifier
cxl: add missing MODULE_DESCRIPTION() macros
cxl/events: Use a common struct for DRAM and General Media events
Linus Torvalds [Sun, 28 Jul 2024 16:14:11 +0000 (09:14 -0700)]
Merge tag 'unicode-next-6.11' of git://git./linux/kernel/git/krisman/unicode
Pull unicode update from Gabriel Krisman Bertazi:
"Two small fixes to silence the compiler and static analyzers tools
from Ben Dooks and Jeff Johnson"
* tag 'unicode-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/krisman/unicode:
unicode: add MODULE_DESCRIPTION() macros
unicode: make utf8 test count static
Jose Ignacio Tornos Martinez [Fri, 26 Jul 2024 09:00:26 +0000 (11:00 +0200)]
kbuild: rpm-pkg: ghost modules.weakdep file
In the same way as for other similar files, mark as ghost the new file
generated by depmod for configured weak dependencies for modules,
modules.weakdep, so that although it is not included in the package,
claim the ownership on it.
Signed-off-by: Jose Ignacio Tornos Martinez <jtornosm@redhat.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Linus Torvalds [Sun, 28 Jul 2024 03:08:07 +0000 (20:08 -0700)]
Merge tag '6.11-rc-smb-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6
Pull more smb client updates from Steve French:
- fix for potential null pointer use in init cifs
- additional dynamic trace points to improve debugging of some common
scenarios
- two SMB1 fixes (one addressing reconnect with POSIX extensions, one a
mount parsing error)
* tag '6.11-rc-smb-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
smb3: add dynamic trace point for session setup key expired failures
smb3: add four dynamic tracepoints for copy_file_range and reflink
smb3: add dynamic tracepoint for reflink errors
cifs: mount with "unix" mount option for SMB1 incorrectly handled
cifs: fix reconnect with SMB1 UNIX Extensions
cifs: fix potential null pointer use in destroy_workqueue in init_cifs error path
Linus Torvalds [Sat, 27 Jul 2024 22:28:53 +0000 (15:28 -0700)]
Merge tag 'block-6.11-
20240726' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
- NVMe pull request via Keith:
- Fix request without payloads cleanup (Leon)
- Use new protection information format (Francis)
- Improved debug message for lost pci link (Bart)
- Another apst quirk (Wang)
- Use appropriate sysfs api for printing chars (Markus)
- ublk async device deletion fix (Ming)
- drbd kerneldoc fixups (Simon)
- Fix deadlock between sd removal and release (Yang)
* tag 'block-6.11-
20240726' of git://git.kernel.dk/linux:
nvme-pci: add missing condition check for existence of mapped data
ublk: fix UBLK_CMD_DEL_DEV_ASYNC handling
block: fix deadlock between sd_remove & sd_release
drbd: Add peer_device to Kernel doc
nvme-core: choose PIF from QPIF if QPIFS supports and PIF is QTYPE
nvme-pci: Fix the instructions for disabling power management
nvme: remove redundant bdev local variable
nvme-fabrics: Use seq_putc() in __nvmf_concat_opt_tokens()
nvme/pci: Add APST quirk for Lenovo N60z laptop
Linus Torvalds [Sat, 27 Jul 2024 22:22:33 +0000 (15:22 -0700)]
Merge tag 'io_uring-6.11-
20240726' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
- Fix a syzbot issue for the msg ring cache added in this release. No
ill effects from this one, but it did make KMSAN unhappy (me)
- Sanitize the NAPI timeout handling, by unifying the value handling
into all ktime_t rather than converting back and forth (Pavel)
- Fail NAPI registration for IOPOLL rings, it's not supported (Pavel)
- Fix a theoretical issue with ring polling and cancelations (Pavel)
- Various little cleanups and fixes (Pavel)
* tag 'io_uring-6.11-
20240726' of git://git.kernel.dk/linux:
io_uring/napi: pass ktime to io_napi_adjust_timeout
io_uring/napi: use ktime in busy polling
io_uring/msg_ring: fix uninitialized use of target_req->flags
io_uring: align iowq and task request error handling
io_uring: kill REQ_F_CANCEL_SEQ
io_uring: simplify io_uring_cmd return
io_uring: fix io_match_task must_hold
io_uring: don't allow netpolling with SETUP_IOPOLL
io_uring: tighten task exit cancellations
Linus Torvalds [Sat, 27 Jul 2024 22:11:59 +0000 (15:11 -0700)]
Merge tag 'vfs-6.11-rc1.fixes.3' of git://git./linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
"This contains two fixes for this merge window:
VFS:
- I noticed that it is possible for a privileged user to mount most
filesystems with a non-initial user namespace in sb->s_user_ns.
When fsopen() is called in a non-init namespace the caller's
namespace is recorded in fs_context->user_ns. If the returned file
descriptor is then passed to a process privileged in init_user_ns,
that process can call fsconfig(fd_fs, FSCONFIG_CMD_CREATE*),
creating a new superblock with sb->s_user_ns set to the namespace
of the process which called fsopen().
This is problematic as only filesystems that raise FS_USERNS_MOUNT
are known to be able to support a non-initial s_user_ns. Others may
suffer security issues, on-disk corruption or outright crash the
kernel. Prevent that by restricting such delegation to filesystems
that allow FS_USERNS_MOUNT.
Note, that this delegation requires a privileged process to
actually create the superblock so either the privileged process is
cooperaing or someone must have tricked a privileged process into
operating on a fscontext file descriptor whose origin it doesn't
know (a stupid idea).
The bug dates back to about 5 years afaict.
Misc:
- Fix hostfs parsing when the mount request comes in via the legacy
mount api.
In the legacy mount api hostfs allows to specify the host directory
mount without any key.
Restore that behavior"
* tag 'vfs-6.11-rc1.fixes.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
hostfs: fix the host directory parse when mounting.
fs: don't allow non-init s_user_ns for filesystems without FS_USERNS_MOUNT
Linus Torvalds [Sat, 27 Jul 2024 20:44:54 +0000 (13:44 -0700)]
Merge tag 'rust-6.11' of https://github.com/Rust-for-Linux/linux
Pull Rust updates from Miguel Ojeda:
"The highlight is the establishment of a minimum version for the Rust
toolchain, including 'rustc' (and bundled tools) and 'bindgen'.
The initial minimum will be the pinned version we currently have, i.e.
we are just widening the allowed versions. That covers three stable
Rust releases: 1.78.0, 1.79.0, 1.80.0 (getting released tomorrow),
plus beta, plus nightly.
This should already be enough for kernel developers in distributions
that provide recent Rust compiler versions routinely, such as Arch
Linux, Debian Unstable (outside the freeze period), Fedora Linux,
Gentoo Linux (especially the testing channel), Nix (unstable) and
openSUSE Slowroll and Tumbleweed.
In addition, the kernel is now being built-tested by Rust's pre-merge
CI. That is, every change that is attempting to land into the Rust
compiler is tested against the kernel, and it is merged only if it
passes. Similarly, the bindgen tool has agreed to build the kernel in
their CI too.
Thus, with the pre-merge CI in place, both projects hope to avoid
unintentional changes to Rust that break the kernel. This means that,
in general, apart from intentional changes on their side (that we will
need to workaround conditionally on our side), the upcoming Rust
compiler versions should generally work.
In addition, the Rust project has proposed getting the kernel into
stable Rust (at least solving the main blockers) as one of its three
flagship goals for 2024H2 [1].
I would like to thank Niko, Sid, Emilio et al. for their help
promoting the collaboration between Rust and the kernel.
Toolchain and infrastructure:
- Support several Rust toolchain versions.
- Support several bindgen versions.
- Remove 'cargo' requirement and simplify 'rusttest', thanks to
'alloc' having been dropped last cycle.
- Provide proper error reporting for the 'rust-analyzer' target.
'kernel' crate:
- Add 'uaccess' module with a safe userspace pointers abstraction.
- Add 'page' module with a 'struct page' abstraction.
- Support more complex generics in workqueue's 'impl_has_work!'
macro.
'macros' crate:
- Add 'firmware' field support to the 'module!' macro.
- Improve 'module!' macro documentation.
Documentation:
- Provide instructions on what packages should be installed to build
the kernel in some popular Linux distributions.
- Introduce the new kernel.org LLVM+Rust toolchains.
- Explain '#[no_std]'.
And a few other small bits"
Link: https://rust-lang.github.io/rust-project-goals/2024h2/index.html#flagship-goals
* tag 'rust-6.11' of https://github.com/Rust-for-Linux/linux: (26 commits)
docs: rust: quick-start: add section on Linux distributions
rust: warn about `bindgen` versions 0.66.0 and 0.66.1
rust: start supporting several `bindgen` versions
rust: work around `bindgen` 0.69.0 issue
rust: avoid assuming a particular `bindgen` build
rust: start supporting several compiler versions
rust: simplify Clippy warning flags set
rust: relax most deny-level lints to warnings
rust: allow `dead_code` for never constructed bindings
rust: init: simplify from `map_err` to `inspect_err`
rust: macros: indent list item in `paste!`'s docs
rust: add abstraction for `struct page`
rust: uaccess: add typed accessors for userspace pointers
uaccess: always export _copy_[from|to]_user with CONFIG_RUST
rust: uaccess: add userspace pointers
kbuild: rust-analyzer: improve comment documentation
kbuild: rust-analyzer: better error handling
docs: rust: no_std is used
rust: alloc: add __GFP_HIGHMEM flag
rust: alloc: fix typo in docs for GFP_NOWAIT
...
Linus Torvalds [Sat, 27 Jul 2024 20:28:39 +0000 (13:28 -0700)]
Merge tag 'apparmor-pr-2024-07-25' of git://git./linux/kernel/git/jj/linux-apparmor
Pull apparmor updates from John Johansen:
"Cleanups
- optimization: try to avoid refing the label in apparmor_file_open
- remove useless static inline function is_deleted
- use kvfree_sensitive to free data->data
- fix typo in kernel doc
Bug fixes:
- unpack transition table if dfa is not present
- test: add MODULE_DESCRIPTION()
- take nosymfollow flag into account
- fix possible NULL pointer dereference
- fix null pointer deref when receiving skb during sock creation"
* tag 'apparmor-pr-2024-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor:
apparmor: unpack transition table if dfa is not present
apparmor: try to avoid refing the label in apparmor_file_open
apparmor: test: add MODULE_DESCRIPTION()
apparmor: take nosymfollow flag into account
apparmor: fix possible NULL pointer dereference
apparmor: fix typo in kernel doc
apparmor: remove useless static inline function is_deleted
apparmor: use kvfree_sensitive to free data->data
apparmor: Fix null pointer deref when receiving skb during sock creation
Linus Torvalds [Sat, 27 Jul 2024 20:16:53 +0000 (13:16 -0700)]
Merge tag 'landlock-6.11-rc1-houdini-fix' of git://git./linux/kernel/git/mic/linux
Pull landlock fix from Mickaël Salaün:
"Jann Horn reported a sandbox bypass for Landlock. This includes the
fix and new tests. This should be backported"
* tag 'landlock-6.11-rc1-houdini-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
selftests/landlock: Add cred_transfer test
landlock: Don't lose track of restrictions on cred_transfer
Linus Torvalds [Sat, 27 Jul 2024 19:54:06 +0000 (12:54 -0700)]
Merge tag 'gpio-fixes-for-v6.11-rc1' of git://git./linux/kernel/git/brgl/linux
Pull gpio fix from Bartosz Golaszewski:
- don't use sprintf() with non-constant format string
* tag 'gpio-fixes-for-v6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: virtuser: avoid non-constant format string
Linus Torvalds [Sat, 27 Jul 2024 19:46:16 +0000 (12:46 -0700)]
Merge tag 'devicetree-fixes-for-6.11-1' of git://git./linux/kernel/git/robh/linux
Pull more devicetree updates from Rob Herring:
"Most of this is a treewide change to of_property_for_each_u32() which
was small enough to do in one go before rc1 and avoids the need to
create of_property_for_each_u32_some_new_name().
- Treewide conversion of of_property_for_each_u32() to drop internal
arguments making struct property opaque
- Add binding for Amlogic A4 SoC watchdog
- Fix constraints for AD7192 'single-channel' property"
* tag 'devicetree-fixes-for-6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dt-bindings: iio: adc: ad7192: Fix 'single-channel' constraints
of: remove internal arguments from of_property_for_each_u32()
dt-bindings: watchdog: add support for Amlogic A4 SoCs
Linus Torvalds [Sat, 27 Jul 2024 19:39:55 +0000 (12:39 -0700)]
Merge tag 'iommu-fixes-v6.11-rc1' of git://git./linux/kernel/git/iommu/linux
Pull iommu fixes from Will Deacon:
"We're still resolving a regression with the handling of unexpected
page faults on SMMUv3, but we're not quite there with a fix yet.
- Fix NULL dereference when freeing domain in Unisoc SPRD driver
- Separate assignment statements with semicolons in AMD page-table
code
- Fix Tegra erratum workaround when the CPU is using 16KiB pages"
* tag 'iommu-fixes-v6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux:
iommu: arm-smmu: Fix Tegra workaround for PAGE_SIZE mappings
iommu/amd: Convert comma to semicolon
iommu: sprd: Avoid NULL deref in sprd_iommu_hw_en
Linus Torvalds [Sat, 27 Jul 2024 19:35:12 +0000 (12:35 -0700)]
Merge tag 'firewire-fixes-6.11-rc1' of git://git./linux/kernel/git/ieee1394/linux1394
Pull firewire fixes from Takashi Sakamoto:
"The recent integration of compiler collections introduced the
technology to check flexible array length at runtime by providing
proper annotations. In v6.10 kernel, a patch was merged into firewire
subsystem to utilize it, however the annotation was inadequate.
There is also the related change for the flexible array in sound
subsystem, but it causes a regression where the data in the payload of
isochronous packet is incorrect for some devices. These bugs are now
fixed"
* tag 'firewire-fixes-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
ALSA: firewire-lib: fix wrong value as length of header for CIP_NO_HEADER case
Revert "firewire: Annotate struct fw_iso_packet with __counted_by()"
Linus Torvalds [Sat, 27 Jul 2024 19:29:10 +0000 (12:29 -0700)]
Merge tag 'spi-fix-v6.11-merge-window' of git://git./linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"The bulk of this is a series of fixes for the microchip-core driver
mostly originating from one of their customers, I also applied an
additional patch adding support for controlling the word size which
came along with it since it's still the merge window and clearly had a
bunch of fairly thorough testing.
We also have a fix for the compatible used to bind spidev to the
BH2228FV"
* tag 'spi-fix-v6.11-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: spidev: add correct compatible for Rohm BH2228FV
dt-bindings: trivial-devices: fix Rohm BH2228FV compatible string
spi: microchip-core: add support for word sizes of 1 to 32 bits
spi: microchip-core: ensure TX and RX FIFOs are empty at start of a transfer
spi: microchip-core: fix init function not setting the master and motorola modes
spi: microchip-core: only disable SPI controller when register value change requires it
spi: microchip-core: defer asserting chip select until just before write to TX FIFO
spi: microchip-core: fix the issues in the isr
Linus Torvalds [Sat, 27 Jul 2024 19:27:52 +0000 (12:27 -0700)]
Merge tag 'regulator-fix-v6.11-merge-window' of git://git./linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"These two commits clean up the excessively loose dependencies for the
RZG2L USB VBCTRL regulator driver, ensuring it shouldn't prompt for
people who can't use it"
* tag 'regulator-fix-v6.11-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: Further restrict RZG2L USB VBCTRL regulator dependencies
regulator: renesas-usb-vbus-regulator: Update the default
Linus Torvalds [Sat, 27 Jul 2024 19:26:09 +0000 (12:26 -0700)]
Merge tag 'regmap-fix-v6.11-merge-window' of git://git./linux/kernel/git/broonie/regmap
Pull regmap fix from Mark Brown:
"Arnd sent a workaround for a false positive warning which was showing
up with GCC 14.1"
* tag 'regmap-fix-v6.11-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: maple: work around gcc-14.1 false-positive warning
Linus Torvalds [Sat, 27 Jul 2024 19:07:18 +0000 (12:07 -0700)]
Merge tag 'clk-for-linus' of git://git./linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"A few clk driver fixes for the merge window to fix the build and boot
on some SoCs.
- Initialize struct clk_init_data in the TI da8xx-cfgchip driver so
that stack contents aren't used for things like clk flags leading
to unexpected behavior
- Don't leak stack contents in a debug print in the new Sophgo clk
driver
- Disable the new T-Head clk driver on 32-bit targets to fix the
build due to a division
- Fix Samsung Exynos4 fin_pll wreckage from the clkdev rework done
last cycle by using a struct clk_hw directly instead of a struct
clk consumer"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: samsung: fix getting Exynos4 fin_pll rate from external clocks
clk: T-Head: Disable on 32-bit Targets
clk: sophgo: clk-sg2042-pll: Fix uninitialized variable in debug output
clk: davinci: da8xx-cfgchip: Initialize clk_init_data before use
Linus Torvalds [Sat, 27 Jul 2024 17:53:06 +0000 (10:53 -0700)]
Merge tag 'i3c/for-6.11' of git://git./linux/kernel/git/i3c/linux
Pull i3c updates from Alexandre Belloni:
"This cycle, there are new features for the Designware controller and
fixes for the other IPs:
- dw: optional apb clock and power management support, IBI handling
fixes
- mipi-i3c-hci: IBI handling fixes
- svc: a few fixes"
* tag 'i3c/for-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
dt-bindings: i3c: add header for generic I3C flags
i3c: master: svc: Fix error code in svc_i3c_master_do_daa_locked()
i3c: master: Enhance i3c_bus_type visibility for device searching & event monitoring
i3c: dw: Add power management support
i3c: dw: Add some functions for reusability
i3c: dw: Save timing registers and other values
i3c: master: svc: Improve DAA STOP handle code logic
i3c: dw: Add optional apb clock
i3c: dw: Use new *_enabled clk API
dt-bindings: i3c: dw: Add apb clock binding
i3c: master: svc: Convert comma to semicolon
i3c: mipi-i3c-hci: Round IBI data chunk size to HW supported value
i3c: mipi-i3c-hci: Error out instead on BUG_ON() in IBI DMA setup
i3c: mipi-i3c-hci: Set IBI Status and Data Ring base addresses
i3c: mipi-i3c-hci: Switch to lower_32_bits()/upper_32_bits() helpers
i3c: dw: Remove ibi_capable property
i3c: dw: Fix IBI intr programming
i3c: dw: Fix clearing queue thld
i3c: mipi-i3c-hci: Fix number of DAT/DCT entries for HCI versions < 1.1
i3c: master: svc: resend target address when get NACK
Linus Torvalds [Sat, 27 Jul 2024 17:44:49 +0000 (10:44 -0700)]
Merge tag 'thermal-6.11-rc1-3' of git://git./linux/kernel/git/rafael/linux-pm
Pull thermal control fix from Rafael Wysocki:
"Prevent the thermal core from flooding the kernel log with useless
messages if thermal zone temperature can never be determined (or its
sensor has failed permanently) and make it finally give up and disable
defective thermal zones (Rafael Wysocki)"
* tag 'thermal-6.11-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: core: Back off when polling thermal zones on errors
thermal: trip: Split thermal_zone_device_set_mode()
Linus Torvalds [Sat, 27 Jul 2024 17:26:41 +0000 (10:26 -0700)]
Merge tag 'mm-hotfixes-stable-2024-07-26-14-33' of git://git./linux/kernel/git/akpm/mm
Pull misc hotfixes from Andrew Morton:
"11 hotfixes, 7 of which are cc:stable. 7 are MM, 4 are other"
* tag 'mm-hotfixes-stable-2024-07-26-14-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
nilfs2: handle inconsistent state in nilfs_btnode_create_block()
selftests/mm: skip test for non-LPA2 and non-LVA systems
mm/page_alloc: fix pcp->count race between drain_pages_zone() vs __rmqueue_pcplist()
mm: memcg: add cacheline padding after lruvec in mem_cgroup_per_node
alloc_tag: outline and export free_reserved_page()
decompress_bunzip2: fix rare decompression failure
mm/huge_memory: avoid PMD-size page cache if needed
mm: huge_memory: use !CONFIG_64BIT to relax huge page alignment on 32 bit machines
mm: fix old/young bit handling in the faulting path
dt-bindings: arm: update James Clark's email address
MAINTAINERS: mailmap: update James Clark's email address
Linus Torvalds [Sat, 27 Jul 2024 17:19:55 +0000 (10:19 -0700)]
Merge tag 'timers-urgent-2024-07-26' of git://git./linux/kernel/git/tip/tip
Pull timer migration updates from Thomas Gleixner:
"Fixes and minor updates for the timer migration code:
- Stop testing the group->parent pointer as it is not guaranteed to
be stable over a chain of operations by design.
This includes a warning which would be nice to have but it produces
false positives due to the racy nature of the check.
- Plug a race between CPUs going in and out of idle and a CPU hotplug
operation. The latter can create and connect a new hierarchy level
which is missed in the concurrent updates of CPUs which go into
idle. As a result the events of such a CPU might not be processed
and timers go stale.
Cure it by splitting the hotplug operation into a prepare and
online callback. The prepare callback is guaranteed to run on an
online and therefore active CPU. This CPU updates the hierarchy and
being online ensures that there is always at least one migrator
active which handles the modified hierarchy correctly when going
idle. The online callback which runs on the incoming CPU then just
marks the CPU active and brings it into operation.
- Improve tracing and polish the code further so it is more obvious
what's going on"
* tag 'timers-urgent-2024-07-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timers/migration: Fix grammar in comment
timers/migration: Spare write when nothing changed
timers/migration: Rename childmask by groupmask to make naming more obvious
timers/migration: Read childmask and parent pointer in a single place
timers/migration: Use a single struct for hierarchy walk data
timers/migration: Improve tracing
timers/migration: Move hierarchy setup into cpuhotplug prepare callback
timers/migration: Do not rely always on group->parent