have.
- interrupt-parent: The phandle for the interrupt controller that
services interrupts for this device.
-- fsl,mode: The operating mode for the SSI interface.
- "i2s-slave" - I2S mode, SSI is clock slave
- "i2s-master" - I2S mode, SSI is clock master
- "lj-slave" - left-justified mode, SSI is clock slave
- "lj-master" - l.j. mode, SSI is clock master
- "rj-slave" - right-justified mode, SSI is clock slave
- "rj-master" - r.j., SSI is clock master
- "ac97-slave" - AC97 mode, SSI is clock slave
- "ac97-master" - AC97 mode, SSI is clock master
- fsl,playback-dma: Phandle to a node for the DMA channel to use for
playback of audio. This is typically dictated by SOC
design. See the notes below.
be connected together, and SRFS and STFS be connected
together. This would still allow different sample sizes,
but not different sample rates.
+ - clocks: "ipg" - Required clock for the SSI unit
+ "baud" - Required clock for SSI master mode. Otherwise this
+ clock is not used
Required are also ac97 link bindings if ac97 is used. See
Documentation/devicetree/bindings/sound/soc-ac97link.txt for the necessary
Documentation/devicetree/bindings/dma/dma.txt.
- dma-names: Two dmas have to be defined, "tx" and "rx", if fsl,imx-fiq
is not defined.
+- fsl,mode: The operating mode for the SSI interface.
+ "i2s-slave" - I2S mode, SSI is clock slave
+ "i2s-master" - I2S mode, SSI is clock master
+ "lj-slave" - left-justified mode, SSI is clock slave
+ "lj-master" - l.j. mode, SSI is clock master
+ "rj-slave" - right-justified mode, SSI is clock slave
+ "rj-master" - r.j., SSI is clock master
+ "ac97-slave" - AC97 mode, SSI is clock slave
+ "ac97-master" - AC97 mode, SSI is clock master
Child 'codec' node required properties:
- compatible: Compatible list, contains the name of the codec
F: include/net/bluetooth/
BONDING DRIVER
-M: Jay Vosburgh <fubar@us.ibm.com>
-M: Veaceslav Falico <vfalico@redhat.com>
+M: Jay Vosburgh <j.vosburgh@gmail.com>
+M: Veaceslav Falico <vfalico@gmail.com>
M: Andy Gospodarek <andy@greyhouse.net>
L: netdev@vger.kernel.org
W: http://sourceforge.net/projects/bonding/
F: drivers/acpi/dock.c
DOCUMENTATION
-M: Rob Landley <rob@landley.net>
+M: Randy Dunlap <rdunlap@infradead.org>
L: linux-doc@vger.kernel.org
-T: TBD
+T: quilt http://www.infradead.org/~rdunlap/Doc/patches/
S: Maintained
F: Documentation/
F: include/uapi/linux/netdevice.h
F: tools/net/
F: tools/testing/selftests/net/
+F: lib/random32.c
NETWORKING [IPv4/IPv6]
M: "David S. Miller" <davem@davemloft.net>
VERSION = 3
PATCHLEVEL = 14
SUBLEVEL = 0
-EXTRAVERSION = -rc8
+EXTRAVERSION =
NAME = Shuffling Zombie Juror
# *DOCUMENTATION*
return a.pte == b.pte;
}
-static inline int pteval_present(pteval_t pteval)
-{
- /*
- * Yes Linus, _PAGE_PROTNONE == _PAGE_NUMA. Expressing it this
- * way clearly states that the intent is that protnone and numa
- * hinting ptes are considered present for the purposes of
- * pagetable operations like zapping, protection changes, gup etc.
- */
- return pteval & (_PAGE_PRESENT | _PAGE_PROTNONE | _PAGE_NUMA);
-}
-
static inline int pte_present(pte_t a)
{
- return pteval_present(pte_flags(a));
+ return pte_flags(a) & (_PAGE_PRESENT | _PAGE_PROTNONE |
+ _PAGE_NUMA);
}
#define pte_accessible pte_accessible
extern const struct cpumask *cpu_coregroup_mask(int cpu);
-#ifdef ENABLE_TOPO_DEFINES
#define topology_physical_package_id(cpu) (cpu_data(cpu).phys_proc_id)
#define topology_core_id(cpu) (cpu_data(cpu).cpu_core_id)
+
+#ifdef ENABLE_TOPO_DEFINES
#define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu))
#define topology_thread_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu))
#endif
/* Assume pteval_t is equivalent to all the other *val_t types. */
static pteval_t pte_mfn_to_pfn(pteval_t val)
{
- if (pteval_present(val)) {
+ if (val & _PAGE_PRESENT) {
unsigned long mfn = (val & PTE_PFN_MASK) >> PAGE_SHIFT;
unsigned long pfn = mfn_to_pfn(mfn);
static pteval_t pte_pfn_to_mfn(pteval_t val)
{
- if (pteval_present(val)) {
+ if (val & _PAGE_PRESENT) {
unsigned long pfn = (val & PTE_PFN_MASK) >> PAGE_SHIFT;
pteval_t flags = val & PTE_FLAGS_MASK;
unsigned long mfn;
rbd_assert(img_request->obj_request_count > 0);
rbd_assert(which != BAD_WHICH);
rbd_assert(which < img_request->obj_request_count);
- rbd_assert(which >= img_request->next_completion);
spin_lock_irq(&img_request->completion_lock);
if (which != img_request->next_completion)
dev_priv->gtt.base.clear_range(&dev_priv->gtt.base,
dev_priv->gtt.base.start / PAGE_SIZE,
dev_priv->gtt.base.total / PAGE_SIZE,
- false);
+ true);
}
void i915_gem_restore_gtt_mappings(struct drm_device *dev)
struct drm_device *drm_dev = pci_get_drvdata(pdev);
int ret;
- if (nouveau_runtime_pm == 0)
- return -EINVAL;
+ if (nouveau_runtime_pm == 0) {
+ pm_runtime_forbid(dev);
+ return -EBUSY;
+ }
/* are we optimus enabled? */
if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
- return -EINVAL;
+ pm_runtime_forbid(dev);
+ return -EBUSY;
}
nv_debug_level(SILENT);
struct nouveau_drm *drm = nouveau_drm(drm_dev);
struct drm_crtc *crtc;
- if (nouveau_runtime_pm == 0)
+ if (nouveau_runtime_pm == 0) {
+ pm_runtime_forbid(dev);
return -EBUSY;
+ }
/* are we optimus enabled? */
if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
+ pm_runtime_forbid(dev);
return -EBUSY;
}
struct drm_device *drm_dev = pci_get_drvdata(pdev);
int ret;
- if (radeon_runtime_pm == 0)
- return -EINVAL;
+ if (radeon_runtime_pm == 0) {
+ pm_runtime_forbid(dev);
+ return -EBUSY;
+ }
- if (radeon_runtime_pm == -1 && !radeon_is_px())
- return -EINVAL;
+ if (radeon_runtime_pm == -1 && !radeon_is_px()) {
+ pm_runtime_forbid(dev);
+ return -EBUSY;
+ }
drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
drm_kms_helper_poll_disable(drm_dev);
struct drm_device *drm_dev = pci_get_drvdata(pdev);
struct drm_crtc *crtc;
- if (radeon_runtime_pm == 0)
+ if (radeon_runtime_pm == 0) {
+ pm_runtime_forbid(dev);
return -EBUSY;
+ }
/* are we PX enabled? */
if (radeon_runtime_pm == -1 && !radeon_is_px()) {
DRM_DEBUG_DRIVER("failing to power off - not px\n");
+ pm_runtime_forbid(dev);
return -EBUSY;
}
if (obj->vmapping)
udl_gem_vunmap(obj);
- if (gem_obj->import_attach)
+ if (gem_obj->import_attach) {
drm_prime_gem_destroy(gem_obj, obj->sg);
+ put_device(gem_obj->dev->dev);
+ }
if (obj->pages)
udl_gem_put_pages(obj);
int ret;
/* need to attach */
+ get_device(dev->dev);
attach = dma_buf_attach(dma_buf, dev->dev);
- if (IS_ERR(attach))
+ if (IS_ERR(attach)) {
+ put_device(dev->dev);
return ERR_CAST(attach);
+ }
get_dma_buf(dma_buf);
fail_detach:
dma_buf_detach(dma_buf, attach);
dma_buf_put(dma_buf);
-
+ put_device(dev->dev);
return ERR_PTR(ret);
}
#include <linux/i2c.h>
#include <linux/io.h>
#include <linux/dma-mapping.h>
+#include <linux/of_address.h>
#include <linux/of_device.h>
+#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <sysdev/fsl_soc.h>
#include <asm/cpm.h>
return -EFAULT;
error = input_ff_upload(dev, &effect, file);
+ if (error)
+ return error;
if (put_user(effect.id, &(((struct ff_effect __user *)p)->id)))
return -EFAULT;
- return error;
+ return 0;
}
/* Multi-number variable-length handlers */
struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc);
unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]);
unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]);
+ int val;
- return !!(adp5588_read(kpad->client, GPIO_DAT_STAT1 + bank) & bit);
+ mutex_lock(&kpad->gpio_lock);
+
+ if (kpad->dir[bank] & bit)
+ val = kpad->dat_out[bank];
+ else
+ val = adp5588_read(kpad->client, GPIO_DAT_STAT1 + bank);
+
+ mutex_unlock(&kpad->gpio_lock);
+
+ return !!(val & bit);
}
static void adp5588_gpio_set_value(struct gpio_chip *chip,
static void da9052_onkey_query(struct da9052_onkey *onkey)
{
- int key_stat;
+ int ret;
- key_stat = da9052_reg_read(onkey->da9052, DA9052_EVENT_B_REG);
- if (key_stat < 0) {
+ ret = da9052_reg_read(onkey->da9052, DA9052_STATUS_A_REG);
+ if (ret < 0) {
dev_err(onkey->da9052->dev,
- "Failed to read onkey event %d\n", key_stat);
+ "Failed to read onkey event err=%d\n", ret);
} else {
/*
* Since interrupt for deassertion of ONKEY pin is not
* generated, onkey event state determines the onkey
* button state.
*/
- key_stat &= DA9052_EVENTB_ENONKEY;
- input_report_key(onkey->input, KEY_POWER, key_stat);
+ bool pressed = !(ret & DA9052_STATUSA_NONKEY);
+
+ input_report_key(onkey->input, KEY_POWER, pressed);
input_sync(onkey->input);
- }
- /*
- * Interrupt is generated only when the ONKEY pin is asserted.
- * Hence the deassertion of the pin is simulated through work queue.
- */
- if (key_stat)
- schedule_delayed_work(&onkey->work, msecs_to_jiffies(50));
+ /*
+ * Interrupt is generated only when the ONKEY pin
+ * is asserted. Hence the deassertion of the pin
+ * is simulated through work queue.
+ */
+ if (pressed)
+ schedule_delayed_work(&onkey->work,
+ msecs_to_jiffies(50));
+ }
}
static void da9052_onkey_work(struct work_struct *work)
__clear_bit(REL_X, input->relbit);
__clear_bit(REL_Y, input->relbit);
- __set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
__set_bit(EV_KEY, input->evbit);
__set_bit(BTN_LEFT, input->keybit);
__set_bit(BTN_RIGHT, input->keybit);
* Read touchpad resolution and maximum reported coordinates
* Resolution is left zero if touchpad does not support the query
*/
+
+static const int *quirk_min_max;
+
static int synaptics_resolution(struct psmouse *psmouse)
{
struct synaptics_data *priv = psmouse->private;
unsigned char resp[3];
+ if (quirk_min_max) {
+ priv->x_min = quirk_min_max[0];
+ priv->x_max = quirk_min_max[1];
+ priv->y_min = quirk_min_max[2];
+ priv->y_max = quirk_min_max[3];
+ return 0;
+ }
+
if (SYN_ID_MAJOR(priv->identity) < 4)
return 0;
{ }
};
+static const struct dmi_system_id min_max_dmi_table[] __initconst = {
+#if defined(CONFIG_DMI)
+ {
+ /* Lenovo ThinkPad Helix */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad Helix"),
+ },
+ .driver_data = (int []){1024, 5052, 2258, 4832},
+ },
+ {
+ /* Lenovo ThinkPad X240 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X240"),
+ },
+ .driver_data = (int []){1232, 5710, 1156, 4696},
+ },
+ {
+ /* Lenovo ThinkPad T440s */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T440"),
+ },
+ .driver_data = (int []){1024, 5112, 2024, 4832},
+ },
+ {
+ /* Lenovo ThinkPad T540p */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T540"),
+ },
+ .driver_data = (int []){1024, 5056, 2058, 4832},
+ },
+#endif
+ { }
+};
+
void __init synaptics_module_init(void)
{
+ const struct dmi_system_id *min_max_dmi;
+
impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table);
broken_olpc_ec = dmi_check_system(olpc_dmi_table);
+
+ min_max_dmi = dmi_first_match(min_max_dmi_table);
+ if (min_max_dmi)
+ quirk_min_max = min_max_dmi->driver_data;
}
static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode)
struct device dev;
struct cdev cdev;
bool exist;
- bool is_mixdev;
struct list_head mixdev_node;
bool opened_by_mixdev;
int old_x[4], old_y[4];
int frac_dx, frac_dy;
unsigned long touch;
+
+ int (*open_device)(struct mousedev *mousedev);
+ void (*close_device)(struct mousedev *mousedev);
};
enum mousedev_emul {
static struct mousedev *mousedev_mix;
static LIST_HEAD(mousedev_mix_list);
-static void mixdev_open_devices(void);
-static void mixdev_close_devices(void);
-
#define fx(i) (mousedev->old_x[(mousedev->pkt_count - (i)) & 03])
#define fy(i) (mousedev->old_y[(mousedev->pkt_count - (i)) & 03])
if (retval)
return retval;
- if (mousedev->is_mixdev)
- mixdev_open_devices();
- else if (!mousedev->exist)
+ if (!mousedev->exist)
retval = -ENODEV;
else if (!mousedev->open++) {
retval = input_open_device(&mousedev->handle);
{
mutex_lock(&mousedev->mutex);
- if (mousedev->is_mixdev)
- mixdev_close_devices();
- else if (mousedev->exist && !--mousedev->open)
+ if (mousedev->exist && !--mousedev->open)
input_close_device(&mousedev->handle);
mutex_unlock(&mousedev->mutex);
* stream. Note that this function is called with mousedev_mix->mutex
* held.
*/
-static void mixdev_open_devices(void)
+static int mixdev_open_devices(struct mousedev *mixdev)
{
- struct mousedev *mousedev;
+ int error;
+
+ error = mutex_lock_interruptible(&mixdev->mutex);
+ if (error)
+ return error;
- if (mousedev_mix->open++)
- return;
+ if (!mixdev->open++) {
+ struct mousedev *mousedev;
- list_for_each_entry(mousedev, &mousedev_mix_list, mixdev_node) {
- if (!mousedev->opened_by_mixdev) {
- if (mousedev_open_device(mousedev))
- continue;
+ list_for_each_entry(mousedev, &mousedev_mix_list, mixdev_node) {
+ if (!mousedev->opened_by_mixdev) {
+ if (mousedev_open_device(mousedev))
+ continue;
- mousedev->opened_by_mixdev = true;
+ mousedev->opened_by_mixdev = true;
+ }
}
}
+
+ mutex_unlock(&mixdev->mutex);
+ return 0;
}
/*
* device. Note that this function is called with mousedev_mix->mutex
* held.
*/
-static void mixdev_close_devices(void)
+static void mixdev_close_devices(struct mousedev *mixdev)
{
- struct mousedev *mousedev;
+ mutex_lock(&mixdev->mutex);
- if (--mousedev_mix->open)
- return;
+ if (!--mixdev->open) {
+ struct mousedev *mousedev;
- list_for_each_entry(mousedev, &mousedev_mix_list, mixdev_node) {
- if (mousedev->opened_by_mixdev) {
- mousedev->opened_by_mixdev = false;
- mousedev_close_device(mousedev);
+ list_for_each_entry(mousedev, &mousedev_mix_list, mixdev_node) {
+ if (mousedev->opened_by_mixdev) {
+ mousedev->opened_by_mixdev = false;
+ mousedev_close_device(mousedev);
+ }
}
}
+
+ mutex_unlock(&mixdev->mutex);
}
mousedev_detach_client(mousedev, client);
kfree(client);
- mousedev_close_device(mousedev);
+ mousedev->close_device(mousedev);
return 0;
}
client->mousedev = mousedev;
mousedev_attach_client(mousedev, client);
- error = mousedev_open_device(mousedev);
+ error = mousedev->open_device(mousedev);
if (error)
goto err_free_client;
if (mixdev) {
dev_set_name(&mousedev->dev, "mice");
+
+ mousedev->open_device = mixdev_open_devices;
+ mousedev->close_device = mixdev_close_devices;
} else {
int dev_no = minor;
/* Normalize device number if it falls into legacy range */
if (dev_no < MOUSEDEV_MINOR_BASE + MOUSEDEV_MINORS)
dev_no -= MOUSEDEV_MINOR_BASE;
dev_set_name(&mousedev->dev, "mouse%d", dev_no);
+
+ mousedev->open_device = mousedev_open_device;
+ mousedev->close_device = mousedev_close_device;
}
mousedev->exist = true;
- mousedev->is_mixdev = mixdev;
mousedev->handle.dev = input_get_device(dev);
mousedev->handle.name = dev_name(&mousedev->dev);
mousedev->handle.handler = handler;
device_del(&mousedev->dev);
mousedev_cleanup(mousedev);
input_free_minor(MINOR(mousedev->dev.devt));
- if (!mousedev->is_mixdev)
+ if (mousedev != mousedev_mix)
input_unregister_handle(&mousedev->handle);
put_device(&mousedev->dev);
}
tg3_init_bufmgr_config(tp);
- features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
-
/* 5700 B0 chips do not support checksumming correctly due
* to hardware bugs.
*/
features |= NETIF_F_TSO_ECN;
}
- dev->features |= features;
+ dev->features |= features | NETIF_F_HW_VLAN_CTAG_TX |
+ NETIF_F_HW_VLAN_CTAG_RX;
dev->vlan_features |= features;
/*
#include <linux/interrupt.h>
#include <net/ip.h>
#include <net/ipv6.h>
+#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/of_mdio.h>
#define MVNETA_TX_IN_PRGRS BIT(1)
#define MVNETA_TX_FIFO_EMPTY BIT(8)
#define MVNETA_RX_MIN_FRAME_SIZE 0x247c
-#define MVNETA_SGMII_SERDES_CFG 0x24A0
+#define MVNETA_SERDES_CFG 0x24A0
#define MVNETA_SGMII_SERDES_PROTO 0x0cc7
+#define MVNETA_RGMII_SERDES_PROTO 0x0667
#define MVNETA_TYPE_PRIO 0x24bc
#define MVNETA_FORCE_UNI BIT(21)
#define MVNETA_TXQ_CMD_1 0x24e4
#define MVNETA_GMAC_MAX_RX_SIZE_MASK 0x7ffc
#define MVNETA_GMAC0_PORT_ENABLE BIT(0)
#define MVNETA_GMAC_CTRL_2 0x2c08
-#define MVNETA_GMAC2_PSC_ENABLE BIT(3)
+#define MVNETA_GMAC2_PCS_ENABLE BIT(3)
#define MVNETA_GMAC2_PORT_RGMII BIT(4)
#define MVNETA_GMAC2_PORT_RESET BIT(6)
#define MVNETA_GMAC_STATUS 0x2c10
mvreg_write(pp, MVNETA_RXQ_CONFIG_REG(rxq->id), val);
}
-
-
-/* Sets the RGMII Enable bit (RGMIIEn) in port MAC control register */
-static void mvneta_gmac_rgmii_set(struct mvneta_port *pp, int enable)
-{
- u32 val;
-
- val = mvreg_read(pp, MVNETA_GMAC_CTRL_2);
-
- if (enable)
- val |= MVNETA_GMAC2_PORT_RGMII;
- else
- val &= ~MVNETA_GMAC2_PORT_RGMII;
-
- mvreg_write(pp, MVNETA_GMAC_CTRL_2, val);
-}
-
-/* Config SGMII port */
-static void mvneta_port_sgmii_config(struct mvneta_port *pp)
-{
- u32 val;
-
- val = mvreg_read(pp, MVNETA_GMAC_CTRL_2);
- val |= MVNETA_GMAC2_PSC_ENABLE;
- mvreg_write(pp, MVNETA_GMAC_CTRL_2, val);
-
- mvreg_write(pp, MVNETA_SGMII_SERDES_CFG, MVNETA_SGMII_SERDES_PROTO);
-}
-
/* Start the Ethernet port RX and TX activity */
static void mvneta_port_up(struct mvneta_port *pp)
{
mvreg_write(pp, MVNETA_UNIT_INTR_CAUSE, 0);
if (phy_mode == PHY_INTERFACE_MODE_SGMII)
- mvneta_port_sgmii_config(pp);
+ mvreg_write(pp, MVNETA_SERDES_CFG, MVNETA_SGMII_SERDES_PROTO);
+ else
+ mvreg_write(pp, MVNETA_SERDES_CFG, MVNETA_RGMII_SERDES_PROTO);
+
+ val = mvreg_read(pp, MVNETA_GMAC_CTRL_2);
- mvneta_gmac_rgmii_set(pp, 1);
+ val |= MVNETA_GMAC2_PCS_ENABLE | MVNETA_GMAC2_PORT_RGMII;
/* Cancel Port Reset */
- val = mvreg_read(pp, MVNETA_GMAC_CTRL_2);
val &= ~MVNETA_GMAC2_PORT_RESET;
mvreg_write(pp, MVNETA_GMAC_CTRL_2, val);
static int mvneta_probe(struct platform_device *pdev)
{
const struct mbus_dram_target_info *dram_target_info;
+ struct resource *res;
struct device_node *dn = pdev->dev.of_node;
struct device_node *phy_node;
u32 phy_addr;
clk_prepare_enable(pp->clk);
- pp->base = of_iomap(dn, 0);
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ err = -ENODEV;
+ goto err_clk;
+ }
+
+ pp->base = devm_ioremap_resource(&pdev->dev, res);
if (pp->base == NULL) {
- err = -ENOMEM;
+ err = PTR_ERR(pp->base);
goto err_clk;
}
pp->stats = alloc_percpu(struct mvneta_pcpu_stats);
if (!pp->stats) {
err = -ENOMEM;
- goto err_unmap;
+ goto err_clk;
}
for_each_possible_cpu(cpu) {
mvneta_deinit(pp);
err_free_stats:
free_percpu(pp->stats);
-err_unmap:
- iounmap(pp->base);
err_clk:
clk_disable_unprepare(pp->clk);
err_free_irq:
mvneta_deinit(pp);
clk_disable_unprepare(pp->clk);
free_percpu(pp->stats);
- iounmap(pp->base);
irq_dispose_mapping(dev->irq);
free_netdev(dev);
static pci_ers_result_t mlx4_pci_slot_reset(struct pci_dev *pdev)
{
- int ret = __mlx4_init_one(pdev, 0);
+ const struct pci_device_id *id;
+ int ret;
+
+ id = pci_match_id(mlx4_pci_table, pdev);
+ ret = __mlx4_init_one(pdev, id->driver_data);
return ret ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
}
ndev->features = ndev->hw_features;
ndev->vlan_features = ndev->hw_features;
/* vlan gets same features (except vlan filter) */
- ndev->vlan_features &= ~NETIF_F_HW_VLAN_CTAG_FILTER;
+ ndev->vlan_features &= ~(NETIF_F_HW_VLAN_CTAG_FILTER |
+ NETIF_F_HW_VLAN_CTAG_TX |
+ NETIF_F_HW_VLAN_CTAG_RX);
if (test_bit(QL_DMA64, &qdev->flags))
ndev->features |= NETIF_F_HIGHDMA;
dev->tx_queue_len = TX_Q_LIMIT;
dev->features |= IFB_FEATURES;
- dev->vlan_features |= IFB_FEATURES;
+ dev->vlan_features |= IFB_FEATURES & ~(NETIF_F_HW_VLAN_CTAG_TX |
+ NETIF_F_HW_VLAN_STAG_TX);
dev->flags |= IFF_NOARP;
dev->flags &= ~IFF_MULTICAST;
// precondition: never called in_interrupt
static void usbnet_terminate_urbs(struct usbnet *dev)
{
- DECLARE_WAIT_QUEUE_HEAD_ONSTACK(unlink_wakeup);
DECLARE_WAITQUEUE(wait, current);
int temp;
/* ensure there are no more active urbs */
- add_wait_queue(&unlink_wakeup, &wait);
+ add_wait_queue(&dev->wait, &wait);
set_current_state(TASK_UNINTERRUPTIBLE);
- dev->wait = &unlink_wakeup;
temp = unlink_urbs(dev, &dev->txq) +
unlink_urbs(dev, &dev->rxq);
"waited for %d urb completions\n", temp);
}
set_current_state(TASK_RUNNING);
- dev->wait = NULL;
- remove_wait_queue(&unlink_wakeup, &wait);
+ remove_wait_queue(&dev->wait, &wait);
}
int usbnet_stop (struct net_device *net)
{
struct usbnet *dev = netdev_priv(net);
struct driver_info *info = dev->driver_info;
- int retval;
+ int retval, pm;
clear_bit(EVENT_DEV_OPEN, &dev->flags);
netif_stop_queue (net);
net->stats.rx_packets, net->stats.tx_packets,
net->stats.rx_errors, net->stats.tx_errors);
+ /* to not race resume */
+ pm = usb_autopm_get_interface(dev->intf);
/* allow minidriver to stop correctly (wireless devices to turn off
* radio etc) */
if (info->stop) {
dev->flags = 0;
del_timer_sync (&dev->delay);
tasklet_kill (&dev->bh);
+ if (!pm)
+ usb_autopm_put_interface(dev->intf);
+
if (info->manage_power &&
!test_and_clear_bit(EVENT_NO_RUNTIME_PM, &dev->flags))
info->manage_power(dev, 0);
/* restart RX again after disabling due to high error rate */
clear_bit(EVENT_RX_KILL, &dev->flags);
- // waiting for all pending urbs to complete?
- if (dev->wait) {
- if ((dev->txq.qlen + dev->rxq.qlen + dev->done.qlen) == 0) {
- wake_up (dev->wait);
- }
+ /* waiting for all pending urbs to complete?
+ * only then can we forgo submitting anew
+ */
+ if (waitqueue_active(&dev->wait)) {
+ if (dev->txq.qlen + dev->rxq.qlen + dev->done.qlen == 0)
+ wake_up_all(&dev->wait);
// or are we maybe short a few urbs?
} else if (netif_running (dev->net) &&
dev->driver_name = name;
dev->msg_enable = netif_msg_init (msg_level, NETIF_MSG_DRV
| NETIF_MSG_PROBE | NETIF_MSG_LINK);
+ init_waitqueue_head(&dev->wait);
skb_queue_head_init (&dev->rxq);
skb_queue_head_init (&dev->txq);
skb_queue_head_init (&dev->done);
spin_unlock_irq(&dev->txq.lock);
if (test_bit(EVENT_DEV_OPEN, &dev->flags)) {
- /* handle remote wakeup ASAP */
- if (!dev->wait &&
- netif_device_present(dev->net) &&
+ /* handle remote wakeup ASAP
+ * we cannot race against stop
+ */
+ if (netif_device_present(dev->net) &&
!timer_pending(&dev->delay) &&
!test_bit(EVENT_RX_HALT, &dev->flags))
rx_alloc_submit(dev, GFP_NOIO);
dev->features |= NETIF_F_LLTX;
dev->features |= VETH_FEATURES;
dev->vlan_features = dev->features &
- ~(NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_STAG_TX);
+ ~(NETIF_F_HW_VLAN_CTAG_TX |
+ NETIF_F_HW_VLAN_STAG_TX |
+ NETIF_F_HW_VLAN_CTAG_RX |
+ NETIF_F_HW_VLAN_STAG_RX);
dev->destructor = veth_dev_free;
dev->hw_features = VETH_FEATURES;
if (err)
break;
} while (rq->vq->num_free);
- if (unlikely(!virtqueue_kick(rq->vq)))
- return false;
+ virtqueue_kick(rq->vq);
return !oom;
}
err = xmit_skb(sq, skb);
/* This should not happen! */
- if (unlikely(err) || unlikely(!virtqueue_kick(sq->vq))) {
+ if (unlikely(err)) {
dev->stats.tx_fifo_errors++;
if (net_ratelimit())
dev_warn(&dev->dev,
kfree_skb(skb);
return NETDEV_TX_OK;
}
+ virtqueue_kick(sq->vq);
/* Don't wait up for transmitted skbs to be freed. */
skb_orphan(skb);
r = -ENOBUFS;
goto err;
}
- d = vhost_get_vq_desc(vq->dev, vq, vq->iov + seg,
+ r = vhost_get_vq_desc(vq->dev, vq, vq->iov + seg,
ARRAY_SIZE(vq->iov) - seg, &out,
&in, log, log_num);
+ if (unlikely(r < 0))
+ goto err;
+
+ d = r;
if (d == vq->num) {
r = 0;
goto err;
*iovcount = seg;
if (unlikely(log))
*log_num = nlogs;
+
+ /* Detect overrun */
+ if (unlikely(datalen > 0)) {
+ r = UIO_MAXIOV + 1;
+ goto err;
+ }
return headcount;
err:
vhost_discard_vq_desc(vq, headcount);
/* On error, stop handling until the next kick. */
if (unlikely(headcount < 0))
break;
+ /* On overrun, truncate and discard */
+ if (unlikely(headcount > UIO_MAXIOV)) {
+ msg.msg_iovlen = 1;
+ err = sock->ops->recvmsg(NULL, sock, &msg,
+ 1, MSG_DONTWAIT | MSG_TRUNC);
+ pr_debug("Discarded rx packet: len %zd\n", sock_len);
+ continue;
+ }
/* OK, now we need to know about added descriptors. */
if (!headcount) {
if (unlikely(vhost_enable_notify(&net->dev, vq))) {
state = BP_EAGAIN;
break;
}
+ scrub_page(page);
- pfn = page_to_pfn(page);
- frame_list[i] = pfn_to_mfn(pfn);
+ frame_list[i] = page_to_pfn(page);
+ }
- scrub_page(page);
+ /*
+ * Ensure that ballooned highmem pages don't have kmaps.
+ *
+ * Do this before changing the p2m as kmap_flush_unused()
+ * reads PTEs to obtain pages (and hence needs the original
+ * p2m entry).
+ */
+ kmap_flush_unused();
+
+ /* Update direct mapping, invalidate P2M, and add to balloon. */
+ for (i = 0; i < nr_pages; i++) {
+ pfn = frame_list[i];
+ frame_list[i] = pfn_to_mfn(pfn);
+ page = pfn_to_page(pfn);
#ifdef CONFIG_XEN_HAVE_PVMMU
/*
}
#endif
- balloon_append(pfn_to_page(pfn));
+ balloon_append(page);
}
- /* Ensure that ballooned highmem pages don't have kmaps. */
- kmap_flush_unused();
flush_tlb_all();
set_xen_guest_handle(reservation.extent_start, frame_list);
static struct dentry *anon_inodefs_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data)
{
- struct dentry *root;
- root = mount_pseudo(fs_type, "anon_inode:", NULL,
+ return mount_pseudo(fs_type, "anon_inode:", NULL,
&anon_inodefs_dentry_operations, ANON_INODE_FS_MAGIC);
- if (!IS_ERR(root)) {
- struct super_block *s = root->d_sb;
- anon_inode_inode = alloc_anon_inode(s);
- if (IS_ERR(anon_inode_inode)) {
- dput(root);
- deactivate_locked_super(s);
- root = ERR_CAST(anon_inode_inode);
- }
- }
- return root;
}
static struct file_system_type anon_inode_fs_type = {
static int __init anon_inode_init(void)
{
- int error;
-
- error = register_filesystem(&anon_inode_fs_type);
- if (error)
- goto err_exit;
anon_inode_mnt = kern_mount(&anon_inode_fs_type);
- if (IS_ERR(anon_inode_mnt)) {
- error = PTR_ERR(anon_inode_mnt);
- goto err_unregister_filesystem;
- }
- return 0;
+ if (IS_ERR(anon_inode_mnt))
+ panic("anon_inode_init() kernel mount failed (%ld)\n", PTR_ERR(anon_inode_mnt));
-err_unregister_filesystem:
- unregister_filesystem(&anon_inode_fs_type);
-err_exit:
- panic(KERN_ERR "anon_inode_init() failed (%d)\n", error);
+ anon_inode_inode = alloc_anon_inode(anon_inode_mnt->mnt_sb);
+ if (IS_ERR(anon_inode_inode))
+ panic("anon_inode_init() inode allocation failed (%ld)\n", PTR_ERR(anon_inode_inode));
+
+ return 0;
}
fs_initcall(anon_inode_init);
u32 dlen = ACCESS_ONCE(name->len);
char *p;
- if (*buflen < dlen + 1)
- return -ENAMETOOLONG;
*buflen -= dlen + 1;
+ if (*buflen < 0)
+ return -ENAMETOOLONG;
p = *buffer -= dlen + 1;
*p++ = '/';
while (dlen--) {
#include <linux/slab.h>
#include <linux/ratelimit.h>
#include <linux/aio.h>
+#include <linux/bitops.h>
#include "ext4_jbd2.h"
#include "xattr.h"
void ext4_set_inode_flags(struct inode *inode)
{
unsigned int flags = EXT4_I(inode)->i_flags;
+ unsigned int new_fl = 0;
- inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
if (flags & EXT4_SYNC_FL)
- inode->i_flags |= S_SYNC;
+ new_fl |= S_SYNC;
if (flags & EXT4_APPEND_FL)
- inode->i_flags |= S_APPEND;
+ new_fl |= S_APPEND;
if (flags & EXT4_IMMUTABLE_FL)
- inode->i_flags |= S_IMMUTABLE;
+ new_fl |= S_IMMUTABLE;
if (flags & EXT4_NOATIME_FL)
- inode->i_flags |= S_NOATIME;
+ new_fl |= S_NOATIME;
if (flags & EXT4_DIRSYNC_FL)
- inode->i_flags |= S_DIRSYNC;
+ new_fl |= S_DIRSYNC;
+ set_mask_bits(&inode->i_flags,
+ S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC, new_fl);
}
/* Propagate flags from i_flags to EXT4_I(inode)->i_flags */
unsigned long __fdget_pos(unsigned int fd)
{
- struct files_struct *files = current->files;
- struct file *file;
- unsigned long v;
-
- if (atomic_read(&files->count) == 1) {
- file = __fcheck_files(files, fd);
- v = 0;
- } else {
- file = __fget(fd, 0);
- v = FDPUT_FPUT;
- }
- if (!file)
- return 0;
+ unsigned long v = __fdget(fd);
+ struct file *file = (struct file *)(v & ~3);
- if (file->f_mode & FMODE_ATOMIC_POS) {
+ if (file && (file->f_mode & FMODE_ATOMIC_POS)) {
if (file_count(file) > 1) {
v |= FDPUT_POS_UNLOCK;
mutex_lock(&file->f_pos_lock);
}
}
- return v | (unsigned long)file;
+ return v;
}
/*
};
struct mountpoint {
- struct list_head m_hash;
+ struct hlist_node m_hash;
struct dentry *m_dentry;
int m_count;
};
struct mount {
- struct list_head mnt_hash;
+ struct hlist_node mnt_hash;
struct mount *mnt_parent;
struct dentry *mnt_mountpoint;
struct vfsmount mnt;
return false;
if (!d_mountpoint(path->dentry))
- break;
+ return true;
mounted = __lookup_mnt(path->mnt, path->dentry);
if (!mounted)
*/
*inode = path->dentry->d_inode;
}
- return true;
-}
-
-static void follow_mount_rcu(struct nameidata *nd)
-{
- while (d_mountpoint(nd->path.dentry)) {
- struct mount *mounted;
- mounted = __lookup_mnt(nd->path.mnt, nd->path.dentry);
- if (!mounted)
- break;
- nd->path.mnt = &mounted->mnt;
- nd->path.dentry = mounted->mnt.mnt_root;
- nd->seq = read_seqcount_begin(&nd->path.dentry->d_seq);
- }
+ return read_seqretry(&mount_lock, nd->m_seq);
}
static int follow_dotdot_rcu(struct nameidata *nd)
break;
nd->seq = read_seqcount_begin(&nd->path.dentry->d_seq);
}
- follow_mount_rcu(nd);
+ while (d_mountpoint(nd->path.dentry)) {
+ struct mount *mounted;
+ mounted = __lookup_mnt(nd->path.mnt, nd->path.dentry);
+ if (!mounted)
+ break;
+ nd->path.mnt = &mounted->mnt;
+ nd->path.dentry = mounted->mnt.mnt_root;
+ nd->seq = read_seqcount_begin(&nd->path.dentry->d_seq);
+ if (!read_seqretry(&mount_lock, nd->m_seq))
+ goto failed;
+ }
nd->inode = nd->path.dentry->d_inode;
return 0;
#include <linux/uaccess.h>
#include <linux/proc_ns.h>
#include <linux/magic.h>
+#include <linux/bootmem.h>
#include "pnode.h"
#include "internal.h"
-#define HASH_SHIFT ilog2(PAGE_SIZE / sizeof(struct list_head))
-#define HASH_SIZE (1UL << HASH_SHIFT)
+static unsigned int m_hash_mask __read_mostly;
+static unsigned int m_hash_shift __read_mostly;
+static unsigned int mp_hash_mask __read_mostly;
+static unsigned int mp_hash_shift __read_mostly;
+
+static __initdata unsigned long mhash_entries;
+static int __init set_mhash_entries(char *str)
+{
+ if (!str)
+ return 0;
+ mhash_entries = simple_strtoul(str, &str, 0);
+ return 1;
+}
+__setup("mhash_entries=", set_mhash_entries);
+
+static __initdata unsigned long mphash_entries;
+static int __init set_mphash_entries(char *str)
+{
+ if (!str)
+ return 0;
+ mphash_entries = simple_strtoul(str, &str, 0);
+ return 1;
+}
+__setup("mphash_entries=", set_mphash_entries);
static int event;
static DEFINE_IDA(mnt_id_ida);
static int mnt_id_start = 0;
static int mnt_group_start = 1;
-static struct list_head *mount_hashtable __read_mostly;
-static struct list_head *mountpoint_hashtable __read_mostly;
+static struct hlist_head *mount_hashtable __read_mostly;
+static struct hlist_head *mountpoint_hashtable __read_mostly;
static struct kmem_cache *mnt_cache __read_mostly;
static DECLARE_RWSEM(namespace_sem);
*/
__cacheline_aligned_in_smp DEFINE_SEQLOCK(mount_lock);
-static inline unsigned long hash(struct vfsmount *mnt, struct dentry *dentry)
+static inline struct hlist_head *m_hash(struct vfsmount *mnt, struct dentry *dentry)
{
unsigned long tmp = ((unsigned long)mnt / L1_CACHE_BYTES);
tmp += ((unsigned long)dentry / L1_CACHE_BYTES);
- tmp = tmp + (tmp >> HASH_SHIFT);
- return tmp & (HASH_SIZE - 1);
+ tmp = tmp + (tmp >> m_hash_shift);
+ return &mount_hashtable[tmp & m_hash_mask];
+}
+
+static inline struct hlist_head *mp_hash(struct dentry *dentry)
+{
+ unsigned long tmp = ((unsigned long)dentry / L1_CACHE_BYTES);
+ tmp = tmp + (tmp >> mp_hash_shift);
+ return &mountpoint_hashtable[tmp & mp_hash_mask];
}
/*
mnt->mnt_writers = 0;
#endif
- INIT_LIST_HEAD(&mnt->mnt_hash);
+ INIT_HLIST_NODE(&mnt->mnt_hash);
INIT_LIST_HEAD(&mnt->mnt_child);
INIT_LIST_HEAD(&mnt->mnt_mounts);
INIT_LIST_HEAD(&mnt->mnt_list);
*/
struct mount *__lookup_mnt(struct vfsmount *mnt, struct dentry *dentry)
{
- struct list_head *head = mount_hashtable + hash(mnt, dentry);
+ struct hlist_head *head = m_hash(mnt, dentry);
struct mount *p;
- list_for_each_entry_rcu(p, head, mnt_hash)
+ hlist_for_each_entry_rcu(p, head, mnt_hash)
if (&p->mnt_parent->mnt == mnt && p->mnt_mountpoint == dentry)
return p;
return NULL;
*/
struct mount *__lookup_mnt_last(struct vfsmount *mnt, struct dentry *dentry)
{
- struct list_head *head = mount_hashtable + hash(mnt, dentry);
- struct mount *p;
-
- list_for_each_entry_reverse(p, head, mnt_hash)
- if (&p->mnt_parent->mnt == mnt && p->mnt_mountpoint == dentry)
- return p;
- return NULL;
+ struct mount *p, *res;
+ res = p = __lookup_mnt(mnt, dentry);
+ if (!p)
+ goto out;
+ hlist_for_each_entry_continue(p, mnt_hash) {
+ if (&p->mnt_parent->mnt != mnt || p->mnt_mountpoint != dentry)
+ break;
+ res = p;
+ }
+out:
+ return res;
}
/*
static struct mountpoint *new_mountpoint(struct dentry *dentry)
{
- struct list_head *chain = mountpoint_hashtable + hash(NULL, dentry);
+ struct hlist_head *chain = mp_hash(dentry);
struct mountpoint *mp;
int ret;
- list_for_each_entry(mp, chain, m_hash) {
+ hlist_for_each_entry(mp, chain, m_hash) {
if (mp->m_dentry == dentry) {
/* might be worth a WARN_ON() */
if (d_unlinked(dentry))
mp->m_dentry = dentry;
mp->m_count = 1;
- list_add(&mp->m_hash, chain);
+ hlist_add_head(&mp->m_hash, chain);
return mp;
}
spin_lock(&dentry->d_lock);
dentry->d_flags &= ~DCACHE_MOUNTED;
spin_unlock(&dentry->d_lock);
- list_del(&mp->m_hash);
+ hlist_del(&mp->m_hash);
kfree(mp);
}
}
mnt->mnt_parent = mnt;
mnt->mnt_mountpoint = mnt->mnt.mnt_root;
list_del_init(&mnt->mnt_child);
- list_del_init(&mnt->mnt_hash);
+ hlist_del_init_rcu(&mnt->mnt_hash);
put_mountpoint(mnt->mnt_mp);
mnt->mnt_mp = NULL;
}
struct mountpoint *mp)
{
mnt_set_mountpoint(parent, mp, mnt);
- list_add_tail(&mnt->mnt_hash, mount_hashtable +
- hash(&parent->mnt, mp->m_dentry));
+ hlist_add_head_rcu(&mnt->mnt_hash, m_hash(&parent->mnt, mp->m_dentry));
list_add_tail(&mnt->mnt_child, &parent->mnt_mounts);
}
/*
* vfsmount lock must be held for write
*/
-static void commit_tree(struct mount *mnt)
+static void commit_tree(struct mount *mnt, struct mount *shadows)
{
struct mount *parent = mnt->mnt_parent;
struct mount *m;
list_splice(&head, n->list.prev);
- list_add_tail(&mnt->mnt_hash, mount_hashtable +
- hash(&parent->mnt, mnt->mnt_mountpoint));
+ if (shadows)
+ hlist_add_after_rcu(&shadows->mnt_hash, &mnt->mnt_hash);
+ else
+ hlist_add_head_rcu(&mnt->mnt_hash,
+ m_hash(&parent->mnt, mnt->mnt_mountpoint));
list_add_tail(&mnt->mnt_child, &parent->mnt_mounts);
touch_mnt_namespace(n);
}
EXPORT_SYMBOL(may_umount);
-static LIST_HEAD(unmounted); /* protected by namespace_sem */
+static HLIST_HEAD(unmounted); /* protected by namespace_sem */
static void namespace_unlock(void)
{
struct mount *mnt;
- LIST_HEAD(head);
+ struct hlist_head head = unmounted;
- if (likely(list_empty(&unmounted))) {
+ if (likely(hlist_empty(&head))) {
up_write(&namespace_sem);
return;
}
- list_splice_init(&unmounted, &head);
+ head.first->pprev = &head.first;
+ INIT_HLIST_HEAD(&unmounted);
+
up_write(&namespace_sem);
synchronize_rcu();
- while (!list_empty(&head)) {
- mnt = list_first_entry(&head, struct mount, mnt_hash);
- list_del_init(&mnt->mnt_hash);
+ while (!hlist_empty(&head)) {
+ mnt = hlist_entry(head.first, struct mount, mnt_hash);
+ hlist_del_init(&mnt->mnt_hash);
if (mnt->mnt_ex_mountpoint.mnt)
path_put(&mnt->mnt_ex_mountpoint);
mntput(&mnt->mnt);
*/
void umount_tree(struct mount *mnt, int how)
{
- LIST_HEAD(tmp_list);
+ HLIST_HEAD(tmp_list);
struct mount *p;
+ struct mount *last = NULL;
- for (p = mnt; p; p = next_mnt(p, mnt))
- list_move(&p->mnt_hash, &tmp_list);
+ for (p = mnt; p; p = next_mnt(p, mnt)) {
+ hlist_del_init_rcu(&p->mnt_hash);
+ hlist_add_head(&p->mnt_hash, &tmp_list);
+ }
if (how)
propagate_umount(&tmp_list);
- list_for_each_entry(p, &tmp_list, mnt_hash) {
+ hlist_for_each_entry(p, &tmp_list, mnt_hash) {
list_del_init(&p->mnt_expire);
list_del_init(&p->mnt_list);
__touch_mnt_namespace(p->mnt_ns);
p->mnt_mp = NULL;
}
change_mnt_propagation(p, MS_PRIVATE);
+ last = p;
+ }
+ if (last) {
+ last->mnt_hash.next = unmounted.first;
+ unmounted.first = tmp_list.first;
+ unmounted.first->pprev = &unmounted.first;
}
- list_splice(&tmp_list, &unmounted);
}
static void shrink_submounts(struct mount *mnt);
struct mountpoint *dest_mp,
struct path *parent_path)
{
- LIST_HEAD(tree_list);
+ HLIST_HEAD(tree_list);
struct mount *child, *p;
+ struct hlist_node *n;
int err;
if (IS_MNT_SHARED(dest_mnt)) {
err = invent_group_ids(source_mnt, true);
if (err)
goto out;
- }
- err = propagate_mnt(dest_mnt, dest_mp, source_mnt, &tree_list);
- if (err)
- goto out_cleanup_ids;
-
- lock_mount_hash();
-
- if (IS_MNT_SHARED(dest_mnt)) {
+ err = propagate_mnt(dest_mnt, dest_mp, source_mnt, &tree_list);
+ if (err)
+ goto out_cleanup_ids;
+ lock_mount_hash();
for (p = source_mnt; p; p = next_mnt(p, source_mnt))
set_mnt_shared(p);
+ } else {
+ lock_mount_hash();
}
if (parent_path) {
detach_mnt(source_mnt, parent_path);
touch_mnt_namespace(source_mnt->mnt_ns);
} else {
mnt_set_mountpoint(dest_mnt, dest_mp, source_mnt);
- commit_tree(source_mnt);
+ commit_tree(source_mnt, NULL);
}
- list_for_each_entry_safe(child, p, &tree_list, mnt_hash) {
- list_del_init(&child->mnt_hash);
- commit_tree(child);
+ hlist_for_each_entry_safe(child, n, &tree_list, mnt_hash) {
+ struct mount *q;
+ hlist_del_init(&child->mnt_hash);
+ q = __lookup_mnt_last(&child->mnt_parent->mnt,
+ child->mnt_mountpoint);
+ commit_tree(child, q);
}
unlock_mount_hash();
return 0;
out_cleanup_ids:
- if (IS_MNT_SHARED(dest_mnt))
- cleanup_group_ids(source_mnt, NULL);
+ cleanup_group_ids(source_mnt, NULL);
out:
return err;
}
mnt_cache = kmem_cache_create("mnt_cache", sizeof(struct mount),
0, SLAB_HWCACHE_ALIGN | SLAB_PANIC, NULL);
- mount_hashtable = (struct list_head *)__get_free_page(GFP_ATOMIC);
- mountpoint_hashtable = (struct list_head *)__get_free_page(GFP_ATOMIC);
+ mount_hashtable = alloc_large_system_hash("Mount-cache",
+ sizeof(struct hlist_head),
+ mhash_entries, 19,
+ 0,
+ &m_hash_shift, &m_hash_mask, 0, 0);
+ mountpoint_hashtable = alloc_large_system_hash("Mountpoint-cache",
+ sizeof(struct hlist_head),
+ mphash_entries, 19,
+ 0,
+ &mp_hash_shift, &mp_hash_mask, 0, 0);
if (!mount_hashtable || !mountpoint_hashtable)
panic("Failed to allocate mount hash table\n");
- printk(KERN_INFO "Mount-cache hash table entries: %lu\n", HASH_SIZE);
-
- for (u = 0; u < HASH_SIZE; u++)
- INIT_LIST_HEAD(&mount_hashtable[u]);
- for (u = 0; u < HASH_SIZE; u++)
- INIT_LIST_HEAD(&mountpoint_hashtable[u]);
+ for (u = 0; u <= m_hash_mask; u++)
+ INIT_HLIST_HEAD(&mount_hashtable[u]);
+ for (u = 0; u <= mp_hash_mask; u++)
+ INIT_HLIST_HEAD(&mountpoint_hashtable[u]);
kernfs_init();
fh_lock(fhp);
host_err = notify_change(dentry, iap, NULL);
fh_unlock(fhp);
+ err = nfserrno(host_err);
out_put_write_access:
if (size_change)
strlcpy(new_conn->cc_name, group, GROUP_NAME_MAX + 1);
new_conn->cc_namelen = grouplen;
- strlcpy(new_conn->cc_cluster_name, cluster_name, CLUSTER_NAME_MAX + 1);
+ if (cluster_name_len)
+ strlcpy(new_conn->cc_cluster_name, cluster_name,
+ CLUSTER_NAME_MAX + 1);
new_conn->cc_cluster_name_len = cluster_name_len;
new_conn->cc_recovery_handler = recovery_handler;
new_conn->cc_recovery_data = recovery_data;
* @tree_list : list of heads of trees to be attached.
*/
int propagate_mnt(struct mount *dest_mnt, struct mountpoint *dest_mp,
- struct mount *source_mnt, struct list_head *tree_list)
+ struct mount *source_mnt, struct hlist_head *tree_list)
{
struct user_namespace *user_ns = current->nsproxy->mnt_ns->user_ns;
struct mount *m, *child;
int ret = 0;
struct mount *prev_dest_mnt = dest_mnt;
struct mount *prev_src_mnt = source_mnt;
- LIST_HEAD(tmp_list);
+ HLIST_HEAD(tmp_list);
for (m = propagation_next(dest_mnt, dest_mnt); m;
m = propagation_next(m, dest_mnt)) {
child = copy_tree(source, source->mnt.mnt_root, type);
if (IS_ERR(child)) {
ret = PTR_ERR(child);
- list_splice(tree_list, tmp_list.prev);
+ tmp_list = *tree_list;
+ tmp_list.first->pprev = &tmp_list.first;
+ INIT_HLIST_HEAD(tree_list);
goto out;
}
if (is_subdir(dest_mp->m_dentry, m->mnt.mnt_root)) {
mnt_set_mountpoint(m, dest_mp, child);
- list_add_tail(&child->mnt_hash, tree_list);
+ hlist_add_head(&child->mnt_hash, tree_list);
} else {
/*
* This can happen if the parent mount was bind mounted
* on some subdirectory of a shared/slave mount.
*/
- list_add_tail(&child->mnt_hash, &tmp_list);
+ hlist_add_head(&child->mnt_hash, &tmp_list);
}
prev_dest_mnt = m;
prev_src_mnt = child;
}
out:
lock_mount_hash();
- while (!list_empty(&tmp_list)) {
- child = list_first_entry(&tmp_list, struct mount, mnt_hash);
+ while (!hlist_empty(&tmp_list)) {
+ child = hlist_entry(tmp_list.first, struct mount, mnt_hash);
umount_tree(child, 0);
}
unlock_mount_hash();
* umount the child only if the child has no
* other children
*/
- if (child && list_empty(&child->mnt_mounts))
- list_move_tail(&child->mnt_hash, &mnt->mnt_hash);
+ if (child && list_empty(&child->mnt_mounts)) {
+ hlist_del_init_rcu(&child->mnt_hash);
+ hlist_add_before_rcu(&child->mnt_hash, &mnt->mnt_hash);
+ }
}
}
*
* vfsmount lock must be held for write
*/
-int propagate_umount(struct list_head *list)
+int propagate_umount(struct hlist_head *list)
{
struct mount *mnt;
- list_for_each_entry(mnt, list, mnt_hash)
+ hlist_for_each_entry(mnt, list, mnt_hash)
__propagate_umount(mnt);
return 0;
}
void change_mnt_propagation(struct mount *, int);
int propagate_mnt(struct mount *, struct mountpoint *, struct mount *,
- struct list_head *);
-int propagate_umount(struct list_head *);
+ struct hlist_head *);
+int propagate_umount(struct hlist_head *);
int propagate_mount_busy(struct mount *, int);
void mnt_release_group_id(struct mount *);
int get_dominating_id(struct mount *mnt, const struct path *root);
unsigned int, whence)
{
int retval;
- struct fd f = fdget(fd);
+ struct fd f = fdget_pos(fd);
loff_t offset;
if (!f.file)
retval = 0;
}
out_putf:
- fdput(f);
+ fdput_pos(f);
return retval;
}
#endif
#ifdef __KERNEL__
+#ifndef set_mask_bits
+#define set_mask_bits(ptr, _mask, _bits) \
+({ \
+ const typeof(*ptr) mask = (_mask), bits = (_bits); \
+ typeof(*ptr) old, new; \
+ \
+ do { \
+ old = ACCESS_ONCE(*ptr); \
+ new = (old & ~mask) | bits; \
+ } while (cmpxchg(ptr, old, new) != old); \
+ \
+ new; \
+})
+#endif
+
#ifndef find_last_bit
/**
* find_last_bit - find the last set bit in a memory region
/* changeable features with no special hardware requirements */
#define NETIF_F_SOFT_FEATURES (NETIF_F_GSO | NETIF_F_GRO)
+#define NETIF_F_VLAN_FEATURES (NETIF_F_HW_VLAN_CTAG_FILTER | \
+ NETIF_F_HW_VLAN_CTAG_RX | \
+ NETIF_F_HW_VLAN_CTAG_TX | \
+ NETIF_F_HW_VLAN_STAG_FILTER | \
+ NETIF_F_HW_VLAN_STAG_RX | \
+ NETIF_F_HW_VLAN_STAG_TX)
+
#endif /* _LINUX_NETDEV_FEATURES_H */
{
return __skb_gso_segment(skb, features, true);
}
-__be16 skb_network_protocol(struct sk_buff *skb);
+__be16 skb_network_protocol(struct sk_buff *skb, int *depth);
static inline bool can_checksum_protocol(netdev_features_t features,
__be16 protocol)
unsigned int flags);
void skb_copy_and_csum_dev(const struct sk_buff *skb, u8 *to);
unsigned int skb_zerocopy_headlen(const struct sk_buff *from);
-void skb_zerocopy(struct sk_buff *to, const struct sk_buff *from,
- int len, int hlen);
+int skb_zerocopy(struct sk_buff *to, struct sk_buff *from,
+ int len, int hlen);
void skb_split(struct sk_buff *skb, struct sk_buff *skb1, const u32 len);
int skb_shift(struct sk_buff *tgt, struct sk_buff *skb, int shiftlen);
void skb_scrub_packet(struct sk_buff *skb, bool xnet);
struct driver_info *driver_info;
const char *driver_name;
void *driver_priv;
- wait_queue_head_t *wait;
+ wait_queue_head_t wait;
struct mutex phy_mutex;
unsigned char suspend_count;
unsigned char pkt_cnt, pkt_err;
#define IF_PREFIX_AUTOCONF 0x02
enum {
+ INET6_IFADDR_STATE_PREDAD,
INET6_IFADDR_STATE_DAD,
INET6_IFADDR_STATE_POSTDAD,
+ INET6_IFADDR_STATE_ERRDAD,
INET6_IFADDR_STATE_UP,
INET6_IFADDR_STATE_DEAD,
};
unsigned long cstamp; /* created timestamp */
unsigned long tstamp; /* updated timestamp */
- struct timer_list dad_timer;
+ struct delayed_work dad_work;
struct inet6_dev *idev;
struct rt6_info *rt;
int err = 0;
/* Only support the initial namespaces for now. */
+ /*
+ * We return ECONNREFUSED because it tricks userspace into thinking
+ * that audit was not configured into the kernel. Lots of users
+ * configure their PAM stack (because that's what the distro does)
+ * to reject login if unable to send messages to audit. If we return
+ * ECONNREFUSED the PAM stack thinks the kernel does not have audit
+ * configured in and will let login proceed. If we return EPERM
+ * userspace will reject all logins. This should be removed when we
+ * support non init namespaces!!
+ */
if ((current_user_ns() != &init_user_ns) ||
(task_active_pid_ns(current) != &init_pid_ns))
- return -EPERM;
+ return -ECONNREFUSED;
switch (msg_type) {
case AUDIT_LIST:
out:
raw_spin_unlock_irqrestore(&timekeeper_lock, flags);
if (clock_set)
- clock_was_set();
+ /* Have to call _delayed version, since in irq context*/
+ clock_was_set_delayed();
}
/**
}
EXPORT_SYMBOL_GPL(trace_buffer_unlock_commit);
+static struct ring_buffer *temp_buffer;
+
struct ring_buffer_event *
trace_event_buffer_lock_reserve(struct ring_buffer **current_rb,
struct ftrace_event_file *ftrace_file,
int type, unsigned long len,
unsigned long flags, int pc)
{
+ struct ring_buffer_event *entry;
+
*current_rb = ftrace_file->tr->trace_buffer.buffer;
- return trace_buffer_lock_reserve(*current_rb,
+ entry = trace_buffer_lock_reserve(*current_rb,
type, len, flags, pc);
+ /*
+ * 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
+ * safe and will not be recorded anywhere.
+ */
+ if (!entry && ftrace_file->flags & FTRACE_EVENT_FL_TRIGGER_COND) {
+ *current_rb = temp_buffer;
+ entry = trace_buffer_lock_reserve(*current_rb,
+ type, len, flags, pc);
+ }
+ return entry;
}
EXPORT_SYMBOL_GPL(trace_event_buffer_lock_reserve);
raw_spin_lock_init(&global_trace.start_lock);
+ /* Used for event triggers */
+ temp_buffer = ring_buffer_alloc(PAGE_SIZE, RB_FL_OVERWRITE);
+ if (!temp_buffer)
+ goto out_free_cpumask;
+
/* TODO: make the number of buffers hot pluggable with CPUS */
if (allocate_trace_buffers(&global_trace, ring_buf_size) < 0) {
printk(KERN_ERR "tracer: failed to allocate ring buffer!\n");
WARN_ON(1);
- goto out_free_cpumask;
+ goto out_free_temp_buffer;
}
if (global_trace.buffer_disabled)
return 0;
+out_free_temp_buffer:
+ ring_buffer_free(temp_buffer);
out_free_cpumask:
free_percpu(global_trace.trace_buffer.data);
#ifdef CONFIG_TRACER_MAX_TRACE
static bool latch = false;
static DEFINE_SPINLOCK(lock);
+ /* Asking for random bytes might result in bytes getting
+ * moved into the nonblocking pool and thus marking it
+ * as initialized. In this case we would double back into
+ * this function and attempt to do a late reseed.
+ * Ignore the pointless attempt to reseed again if we're
+ * already waiting for bytes when the nonblocking pool
+ * got initialized.
+ */
+
/* only allow initial seeding (late == false) once */
- spin_lock_irqsave(&lock, flags);
+ if (!spin_trylock_irqsave(&lock, flags))
+ return;
+
if (latch && !late)
goto out;
latch = true;
static void vlan_transfer_features(struct net_device *dev,
struct net_device *vlandev)
{
+ struct vlan_dev_priv *vlan = vlan_dev_priv(vlandev);
+
vlandev->gso_max_size = dev->gso_max_size;
- if (dev->features & NETIF_F_HW_VLAN_CTAG_TX)
+ if (vlan_hw_offload_capable(dev->features, vlan->vlan_proto))
vlandev->hard_header_len = dev->hard_header_len;
else
vlandev->hard_header_len = dev->hard_header_len + VLAN_HLEN;
dev->features |= real_dev->vlan_features | NETIF_F_LLTX;
dev->gso_max_size = real_dev->gso_max_size;
+ if (dev->features & NETIF_F_VLAN_FEATURES)
+ netdev_warn(real_dev, "VLAN features are set incorrectly. Q-in-Q configurations may not work correctly.\n");
+
/* ipv6 shared card related stuff */
dev->dev_id = real_dev->dev_id;
#endif
dev->needed_headroom = real_dev->needed_headroom;
- if (real_dev->features & NETIF_F_HW_VLAN_CTAG_TX) {
+ if (vlan_hw_offload_capable(real_dev->features,
+ vlan_dev_priv(dev)->vlan_proto)) {
dev->header_ops = &vlan_passthru_header_ops;
dev->hard_header_len = real_dev->hard_header_len;
} else {
brstats->tx_bytes += skb->len;
u64_stats_update_end(&brstats->syncp);
- if (!br_allowed_ingress(br, br_get_vlan_info(br), skb, &vid))
- goto out;
-
BR_INPUT_SKB_CB(skb)->brdev = dev;
skb_reset_mac_header(skb);
skb_pull(skb, ETH_HLEN);
+ if (!br_allowed_ingress(br, br_get_vlan_info(br), skb, &vid))
+ goto out;
+
if (is_broadcast_ether_addr(dest))
br_flood_deliver(br, skb, false);
else if (is_multicast_ether_addr(dest)) {
struct net_device *indev, *brdev = BR_INPUT_SKB_CB(skb)->brdev;
struct net_bridge *br = netdev_priv(brdev);
struct pcpu_sw_netstats *brstats = this_cpu_ptr(br->stats);
+ struct net_port_vlans *pv;
u64_stats_update_begin(&brstats->syncp);
brstats->rx_packets++;
* packet is allowed except in promisc modue when someone
* may be running packet capture.
*/
+ pv = br_get_vlan_info(br);
if (!(brdev->flags & IFF_PROMISC) &&
- !br_allowed_egress(br, br_get_vlan_info(br), skb)) {
+ !br_allowed_egress(br, pv, skb)) {
kfree_skb(skb);
return NET_RX_DROP;
}
- skb = br_handle_vlan(br, br_get_vlan_info(br), skb);
- if (!skb)
- return NET_RX_DROP;
-
indev = skb->dev;
skb->dev = brdev;
+ skb = br_handle_vlan(br, pv, skb);
+ if (!skb)
+ return NET_RX_DROP;
return NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, skb, indev, NULL,
netif_receive_skb);
kfree_rcu(v, rcu);
}
-/* Strip the tag from the packet. Will return skb with tci set 0. */
-static struct sk_buff *br_vlan_untag(struct sk_buff *skb)
-{
- if (skb->protocol != htons(ETH_P_8021Q)) {
- skb->vlan_tci = 0;
- return skb;
- }
-
- skb->vlan_tci = 0;
- skb = vlan_untag(skb);
- if (skb)
- skb->vlan_tci = 0;
-
- return skb;
-}
-
struct sk_buff *br_handle_vlan(struct net_bridge *br,
const struct net_port_vlans *pv,
struct sk_buff *skb)
if (!br->vlan_enabled)
goto out;
+ /* Vlan filter table must be configured at this point. The
+ * only exception is the bridge is set in promisc mode and the
+ * packet is destined for the bridge device. In this case
+ * pass the packet as is.
+ */
+ if (!pv) {
+ if ((br->dev->flags & IFF_PROMISC) && skb->dev == br->dev) {
+ goto out;
+ } else {
+ kfree_skb(skb);
+ return NULL;
+ }
+ }
+
/* At this point, we know that the frame was filtered and contains
* a valid vlan id. If the vlan id is set in the untagged bitmap,
* send untagged; otherwise, send tagged.
*/
br_vlan_get_tag(skb, &vid);
if (test_bit(vid, pv->untagged_bitmap))
- skb = br_vlan_untag(skb);
+ skb->vlan_tci = 0;
out:
return skb;
if (!v)
return false;
+ /* If vlan tx offload is disabled on bridge device and frame was
+ * sent from vlan device on the bridge device, it does not have
+ * HW accelerated vlan tag.
+ */
+ if (unlikely(!vlan_tx_tag_present(skb) &&
+ (skb->protocol == htons(ETH_P_8021Q) ||
+ skb->protocol == htons(ETH_P_8021AD)))) {
+ skb = vlan_untag(skb);
+ if (unlikely(!skb))
+ return false;
+ }
+
err = br_vlan_get_tag(skb, vid);
if (!*vid) {
u16 pvid = br_get_pvid(v);
}
EXPORT_SYMBOL(skb_checksum_help);
-__be16 skb_network_protocol(struct sk_buff *skb)
+__be16 skb_network_protocol(struct sk_buff *skb, int *depth)
{
__be16 type = skb->protocol;
int vlan_depth = ETH_HLEN;
vlan_depth += VLAN_HLEN;
}
+ *depth = vlan_depth;
+
return type;
}
{
struct sk_buff *segs = ERR_PTR(-EPROTONOSUPPORT);
struct packet_offload *ptype;
- __be16 type = skb_network_protocol(skb);
+ int vlan_depth = skb->mac_len;
+ __be16 type = skb_network_protocol(skb, &vlan_depth);
if (unlikely(!type))
return ERR_PTR(-EINVAL);
- __skb_pull(skb, skb->mac_len);
+ __skb_pull(skb, vlan_depth);
rcu_read_lock();
list_for_each_entry_rcu(ptype, &offload_base, list) {
const struct net_device *dev,
netdev_features_t features)
{
+ int tmp;
+
if (skb->ip_summed != CHECKSUM_NONE &&
- !can_checksum_protocol(features, skb_network_protocol(skb))) {
+ !can_checksum_protocol(features, skb_network_protocol(skb, &tmp))) {
features &= ~NETIF_F_ALL_CSUM;
} else if (illegal_highdma(dev, skb)) {
features &= ~NETIF_F_SG;
*
* The `hlen` as calculated by skb_zerocopy_headlen() specifies the
* headroom in the `to` buffer.
+ *
+ * Return value:
+ * 0: everything is OK
+ * -ENOMEM: couldn't orphan frags of @from due to lack of memory
+ * -EFAULT: skb_copy_bits() found some problem with skb geometry
*/
-void
-skb_zerocopy(struct sk_buff *to, const struct sk_buff *from, int len, int hlen)
+int
+skb_zerocopy(struct sk_buff *to, struct sk_buff *from, int len, int hlen)
{
int i, j = 0;
int plen = 0; /* length of skb->head fragment */
+ int ret;
struct page *page;
unsigned int offset;
BUG_ON(!from->head_frag && !hlen);
/* dont bother with small payloads */
- if (len <= skb_tailroom(to)) {
- skb_copy_bits(from, 0, skb_put(to, len), len);
- return;
- }
+ if (len <= skb_tailroom(to))
+ return skb_copy_bits(from, 0, skb_put(to, len), len);
if (hlen) {
- skb_copy_bits(from, 0, skb_put(to, hlen), hlen);
+ ret = skb_copy_bits(from, 0, skb_put(to, hlen), hlen);
+ if (unlikely(ret))
+ return ret;
len -= hlen;
} else {
plen = min_t(int, skb_headlen(from), len);
to->len += len + plen;
to->data_len += len + plen;
+ if (unlikely(skb_orphan_frags(from, GFP_ATOMIC))) {
+ skb_tx_error(from);
+ return -ENOMEM;
+ }
+
for (i = 0; i < skb_shinfo(from)->nr_frags; i++) {
if (!len)
break;
j++;
}
skb_shinfo(to)->nr_frags = j;
+
+ return 0;
}
EXPORT_SYMBOL_GPL(skb_zerocopy);
int err = -ENOMEM;
int i = 0;
int pos;
+ int dummy;
- proto = skb_network_protocol(head_skb);
+ proto = skb_network_protocol(head_skb, &dummy);
if (unlikely(!proto))
return ERR_PTR(-EINVAL);
int i;
bool csum_err = false;
+#ifdef CONFIG_NET_IPGRE_BROADCAST
+ if (ipv4_is_multicast(ip_hdr(skb)->daddr)) {
+ /* Looped back packet, drop it! */
+ if (rt_is_output_route(skb_rtable(skb)))
+ goto drop;
+ }
+#endif
+
if (parse_gre_header(skb, &tpi, &csum_err) < 0)
goto drop;
#ifdef CONFIG_NET_IPGRE_BROADCAST
if (ipv4_is_multicast(iph->daddr)) {
- /* Looped back packet, drop it! */
- if (rt_is_output_route(skb_rtable(skb)))
- goto drop;
tunnel->dev->stats.multicast++;
skb->pkt_type = PACKET_BROADCAST;
}
nf_reset(skb);
secpath_reset(skb);
skb_clear_hash_if_not_l4(skb);
+ skb_dst_drop(skb);
skb->vlan_tci = 0;
skb_set_queue_mapping(skb, 0);
skb->pkt_type = PACKET_HOST;
{
__be32 dest, src;
__u16 destp, srcp;
- long delta = tw->tw_ttd - jiffies;
+ s32 delta = tw->tw_ttd - inet_tw_time_stamp();
dest = tw->tw_daddr;
src = tw->tw_rcv_saddr;
static struct hlist_head inet6_addr_lst[IN6_ADDR_HSIZE];
static DEFINE_SPINLOCK(addrconf_hash_lock);
-static void addrconf_verify(unsigned long);
+static void addrconf_verify(void);
+static void addrconf_verify_rtnl(void);
+static void addrconf_verify_work(struct work_struct *);
-static DEFINE_TIMER(addr_chk_timer, addrconf_verify, 0, 0);
-static DEFINE_SPINLOCK(addrconf_verify_lock);
+static struct workqueue_struct *addrconf_wq;
+static DECLARE_DELAYED_WORK(addr_chk_work, addrconf_verify_work);
static void addrconf_join_anycast(struct inet6_ifaddr *ifp);
static void addrconf_leave_anycast(struct inet6_ifaddr *ifp);
u32 flags, u32 noflags);
static void addrconf_dad_start(struct inet6_ifaddr *ifp);
-static void addrconf_dad_timer(unsigned long data);
+static void addrconf_dad_work(struct work_struct *w);
static void addrconf_dad_completed(struct inet6_ifaddr *ifp);
static void addrconf_dad_run(struct inet6_dev *idev);
static void addrconf_rs_timer(unsigned long data);
__in6_dev_put(idev);
}
-static void addrconf_del_dad_timer(struct inet6_ifaddr *ifp)
+static void addrconf_del_dad_work(struct inet6_ifaddr *ifp)
{
- if (del_timer(&ifp->dad_timer))
+ if (cancel_delayed_work(&ifp->dad_work))
__in6_ifa_put(ifp);
}
mod_timer(&idev->rs_timer, jiffies + when);
}
-static void addrconf_mod_dad_timer(struct inet6_ifaddr *ifp,
- unsigned long when)
+static void addrconf_mod_dad_work(struct inet6_ifaddr *ifp,
+ unsigned long delay)
{
- if (!timer_pending(&ifp->dad_timer))
+ if (!delayed_work_pending(&ifp->dad_work))
in6_ifa_hold(ifp);
- mod_timer(&ifp->dad_timer, jiffies + when);
+ mod_delayed_work(addrconf_wq, &ifp->dad_work, delay);
}
static int snmp6_alloc_dev(struct inet6_dev *idev)
in6_dev_put(ifp->idev);
- if (del_timer(&ifp->dad_timer))
- pr_notice("Timer is still running, when freeing ifa=%p\n", ifp);
+ if (cancel_delayed_work(&ifp->dad_work))
+ pr_notice("delayed DAD work was pending while freeing ifa=%p\n",
+ ifp);
if (ifp->state != INET6_IFADDR_STATE_DEAD) {
pr_warn("Freeing alive inet6 address %p\n", ifp);
spin_lock_init(&ifa->lock);
spin_lock_init(&ifa->state_lock);
- setup_timer(&ifa->dad_timer, addrconf_dad_timer,
- (unsigned long)ifa);
+ INIT_DELAYED_WORK(&ifa->dad_work, addrconf_dad_work);
INIT_HLIST_NODE(&ifa->addr_lst);
ifa->scope = scope;
ifa->prefix_len = pfxlen;
enum cleanup_prefix_rt_t action = CLEANUP_PREFIX_RT_NOP;
unsigned long expires;
+ ASSERT_RTNL();
+
spin_lock_bh(&ifp->state_lock);
state = ifp->state;
ifp->state = INET6_IFADDR_STATE_DEAD;
write_unlock_bh(&ifp->idev->lock);
- addrconf_del_dad_timer(ifp);
+ addrconf_del_dad_work(ifp);
ipv6_ifa_notify(RTM_DELADDR, ifp);
{
if (ifp->flags&IFA_F_PERMANENT) {
spin_lock_bh(&ifp->lock);
- addrconf_del_dad_timer(ifp);
+ addrconf_del_dad_work(ifp);
ifp->flags |= IFA_F_TENTATIVE;
if (dad_failed)
ifp->flags |= IFA_F_DADFAILED;
spin_unlock_bh(&ifp->lock);
}
ipv6_del_addr(ifp);
- } else
+ } else {
ipv6_del_addr(ifp);
+ }
}
static int addrconf_dad_end(struct inet6_ifaddr *ifp)
{
int err = -ENOENT;
- spin_lock(&ifp->state_lock);
+ spin_lock_bh(&ifp->state_lock);
if (ifp->state == INET6_IFADDR_STATE_DAD) {
ifp->state = INET6_IFADDR_STATE_POSTDAD;
err = 0;
}
- spin_unlock(&ifp->state_lock);
+ spin_unlock_bh(&ifp->state_lock);
return err;
}
}
}
- addrconf_dad_stop(ifp, 1);
+ spin_lock_bh(&ifp->state_lock);
+ /* transition from _POSTDAD to _ERRDAD */
+ ifp->state = INET6_IFADDR_STATE_ERRDAD;
+ spin_unlock_bh(&ifp->state_lock);
+
+ addrconf_mod_dad_work(ifp, 0);
}
/* Join to solicited addr multicast group. */
{
struct in6_addr maddr;
+ ASSERT_RTNL();
+
if (dev->flags&(IFF_LOOPBACK|IFF_NOARP))
return;
{
struct in6_addr maddr;
+ ASSERT_RTNL();
+
if (idev->dev->flags&(IFF_LOOPBACK|IFF_NOARP))
return;
static void addrconf_join_anycast(struct inet6_ifaddr *ifp)
{
struct in6_addr addr;
+
+ ASSERT_RTNL();
+
if (ifp->prefix_len >= 127) /* RFC 6164 */
return;
ipv6_addr_prefix(&addr, &ifp->addr, ifp->prefix_len);
static void addrconf_leave_anycast(struct inet6_ifaddr *ifp)
{
struct in6_addr addr;
+
+ ASSERT_RTNL();
+
if (ifp->prefix_len >= 127) /* RFC 6164 */
return;
ipv6_addr_prefix(&addr, &ifp->addr, ifp->prefix_len);
return;
}
- ifp->flags |= IFA_F_MANAGETEMPADDR;
update_lft = 0;
create = 1;
+ spin_lock_bh(&ifp->lock);
+ ifp->flags |= IFA_F_MANAGETEMPADDR;
ifp->cstamp = jiffies;
ifp->tokenized = tokenized;
+ spin_unlock_bh(&ifp->lock);
addrconf_dad_start(ifp);
}
create, now);
in6_ifa_put(ifp);
- addrconf_verify(0);
+ addrconf_verify();
}
}
inet6_prefix_notify(RTM_NEWPREFIX, in6_dev, pinfo);
manage_tempaddrs(idev, ifp, valid_lft, prefered_lft,
true, jiffies);
in6_ifa_put(ifp);
- addrconf_verify(0);
+ addrconf_verify_rtnl();
return 0;
}
hlist_for_each_entry_rcu(ifa, h, addr_lst) {
if (ifa->idev == idev) {
hlist_del_init_rcu(&ifa->addr_lst);
- addrconf_del_dad_timer(ifa);
+ addrconf_del_dad_work(ifa);
goto restart;
}
}
while (!list_empty(&idev->addr_list)) {
ifa = list_first_entry(&idev->addr_list,
struct inet6_ifaddr, if_list);
- addrconf_del_dad_timer(ifa);
+ addrconf_del_dad_work(ifa);
list_del(&ifa->if_list);
rand_num = prandom_u32() % (idev->cnf.rtr_solicit_delay ? : 1);
ifp->dad_probes = idev->cnf.dad_transmits;
- addrconf_mod_dad_timer(ifp, rand_num);
+ addrconf_mod_dad_work(ifp, rand_num);
}
-static void addrconf_dad_start(struct inet6_ifaddr *ifp)
+static void addrconf_dad_begin(struct inet6_ifaddr *ifp)
{
struct inet6_dev *idev = ifp->idev;
struct net_device *dev = idev->dev;
read_unlock_bh(&idev->lock);
}
-static void addrconf_dad_timer(unsigned long data)
+static void addrconf_dad_start(struct inet6_ifaddr *ifp)
{
- struct inet6_ifaddr *ifp = (struct inet6_ifaddr *) data;
+ bool begin_dad = false;
+
+ spin_lock_bh(&ifp->state_lock);
+ if (ifp->state != INET6_IFADDR_STATE_DEAD) {
+ ifp->state = INET6_IFADDR_STATE_PREDAD;
+ begin_dad = true;
+ }
+ spin_unlock_bh(&ifp->state_lock);
+
+ if (begin_dad)
+ addrconf_mod_dad_work(ifp, 0);
+}
+
+static void addrconf_dad_work(struct work_struct *w)
+{
+ struct inet6_ifaddr *ifp = container_of(to_delayed_work(w),
+ struct inet6_ifaddr,
+ dad_work);
struct inet6_dev *idev = ifp->idev;
struct in6_addr mcaddr;
+ enum {
+ DAD_PROCESS,
+ DAD_BEGIN,
+ DAD_ABORT,
+ } action = DAD_PROCESS;
+
+ rtnl_lock();
+
+ spin_lock_bh(&ifp->state_lock);
+ if (ifp->state == INET6_IFADDR_STATE_PREDAD) {
+ action = DAD_BEGIN;
+ ifp->state = INET6_IFADDR_STATE_DAD;
+ } else if (ifp->state == INET6_IFADDR_STATE_ERRDAD) {
+ action = DAD_ABORT;
+ ifp->state = INET6_IFADDR_STATE_POSTDAD;
+ }
+ spin_unlock_bh(&ifp->state_lock);
+
+ if (action == DAD_BEGIN) {
+ addrconf_dad_begin(ifp);
+ goto out;
+ } else if (action == DAD_ABORT) {
+ addrconf_dad_stop(ifp, 1);
+ goto out;
+ }
+
if (!ifp->dad_probes && addrconf_dad_end(ifp))
goto out;
- write_lock(&idev->lock);
+ write_lock_bh(&idev->lock);
if (idev->dead || !(idev->if_flags & IF_READY)) {
- write_unlock(&idev->lock);
+ write_unlock_bh(&idev->lock);
goto out;
}
spin_lock(&ifp->lock);
if (ifp->state == INET6_IFADDR_STATE_DEAD) {
spin_unlock(&ifp->lock);
- write_unlock(&idev->lock);
+ write_unlock_bh(&idev->lock);
goto out;
}
ifp->flags &= ~(IFA_F_TENTATIVE|IFA_F_OPTIMISTIC|IFA_F_DADFAILED);
spin_unlock(&ifp->lock);
- write_unlock(&idev->lock);
+ write_unlock_bh(&idev->lock);
addrconf_dad_completed(ifp);
}
ifp->dad_probes--;
- addrconf_mod_dad_timer(ifp,
- NEIGH_VAR(ifp->idev->nd_parms, RETRANS_TIME));
+ addrconf_mod_dad_work(ifp,
+ NEIGH_VAR(ifp->idev->nd_parms, RETRANS_TIME));
spin_unlock(&ifp->lock);
- write_unlock(&idev->lock);
+ write_unlock_bh(&idev->lock);
/* send a neighbour solicitation for our addr */
addrconf_addr_solict_mult(&ifp->addr, &mcaddr);
ndisc_send_ns(ifp->idev->dev, NULL, &ifp->addr, &mcaddr, &in6addr_any);
out:
in6_ifa_put(ifp);
+ rtnl_unlock();
}
/* ifp->idev must be at least read locked */
struct in6_addr lladdr;
bool send_rs, send_mld;
- addrconf_del_dad_timer(ifp);
+ addrconf_del_dad_work(ifp);
/*
* Configure the address for reception. Now it is valid.
* Periodic address status verification
*/
-static void addrconf_verify(unsigned long foo)
+static void addrconf_verify_rtnl(void)
{
unsigned long now, next, next_sec, next_sched;
struct inet6_ifaddr *ifp;
int i;
+ ASSERT_RTNL();
+
rcu_read_lock_bh();
- spin_lock(&addrconf_verify_lock);
now = jiffies;
next = round_jiffies_up(now + ADDR_CHECK_FREQUENCY);
- del_timer(&addr_chk_timer);
+ cancel_delayed_work(&addr_chk_work);
for (i = 0; i < IN6_ADDR_HSIZE; i++) {
restart:
- hlist_for_each_entry_rcu_bh(ifp,
- &inet6_addr_lst[i], addr_lst) {
+ hlist_for_each_entry_rcu_bh(ifp, &inet6_addr_lst[i], addr_lst) {
unsigned long age;
/* When setting preferred_lft to a value not zero or
ADBG(KERN_DEBUG "now = %lu, schedule = %lu, rounded schedule = %lu => %lu\n",
now, next, next_sec, next_sched);
-
- addr_chk_timer.expires = next_sched;
- add_timer(&addr_chk_timer);
- spin_unlock(&addrconf_verify_lock);
+ mod_delayed_work(addrconf_wq, &addr_chk_work, next_sched - now);
rcu_read_unlock_bh();
}
+static void addrconf_verify_work(struct work_struct *w)
+{
+ rtnl_lock();
+ addrconf_verify_rtnl();
+ rtnl_unlock();
+}
+
+static void addrconf_verify(void)
+{
+ mod_delayed_work(addrconf_wq, &addr_chk_work, 0);
+}
+
static struct in6_addr *extract_addr(struct nlattr *addr, struct nlattr *local,
struct in6_addr **peer_pfx)
{
bool was_managetempaddr;
bool had_prefixroute;
+ ASSERT_RTNL();
+
if (!valid_lft || (prefered_lft > valid_lft))
return -EINVAL;
!was_managetempaddr, jiffies);
}
- addrconf_verify(0);
+ addrconf_verify_rtnl();
return 0;
}
bool update_rs = false;
struct in6_addr ll_addr;
+ ASSERT_RTNL();
+
if (token == NULL)
return -EINVAL;
if (ipv6_addr_any(token))
}
write_unlock_bh(&idev->lock);
- addrconf_verify(0);
+ addrconf_verify_rtnl();
return 0;
}
{
struct net *net = dev_net(ifp->idev->dev);
+ if (event)
+ ASSERT_RTNL();
+
inet6_ifa_notify(event ? : RTM_NEWADDR, ifp);
switch (event) {
if (err < 0)
goto out_addrlabel;
+ addrconf_wq = create_workqueue("ipv6_addrconf");
+ if (!addrconf_wq) {
+ err = -ENOMEM;
+ goto out_nowq;
+ }
+
/* The addrconf netdev notifier requires that loopback_dev
* has it's ipv6 private information allocated and setup
* before it can bring up and give link-local addresses
register_netdevice_notifier(&ipv6_dev_notf);
- addrconf_verify(0);
+ addrconf_verify();
rtnl_af_register(&inet6_ops);
rtnl_af_unregister(&inet6_ops);
unregister_netdevice_notifier(&ipv6_dev_notf);
errlo:
+ destroy_workqueue(addrconf_wq);
+out_nowq:
unregister_pernet_subsys(&addrconf_ops);
out_addrlabel:
ipv6_addr_label_cleanup();
for (i = 0; i < IN6_ADDR_HSIZE; i++)
WARN_ON(!hlist_empty(&inet6_addr_lst[i]));
spin_unlock_bh(&addrconf_hash_lock);
-
- del_timer(&addr_chk_timer);
+ cancel_delayed_work(&addr_chk_work);
rtnl_unlock();
+
+ destroy_workqueue(addrconf_wq);
}
skb = nfnetlink_alloc_skb(net, size, queue->peer_portid,
GFP_ATOMIC);
- if (!skb)
+ if (!skb) {
+ skb_tx_error(entskb);
return NULL;
+ }
nlh = nlmsg_put(skb, 0, 0,
NFNL_SUBSYS_QUEUE << 8 | NFQNL_MSG_PACKET,
sizeof(struct nfgenmsg), 0);
if (!nlh) {
+ skb_tx_error(entskb);
kfree_skb(skb);
return NULL;
}
nla->nla_type = NFQA_PAYLOAD;
nla->nla_len = nla_attr_size(data_len);
- skb_zerocopy(skb, entskb, data_len, hlen);
+ if (skb_zerocopy(skb, entskb, data_len, hlen))
+ goto nla_put_failure;
}
nlh->nlmsg_len = skb->len;
return skb;
nla_put_failure:
+ skb_tx_error(entskb);
kfree_skb(skb);
net_err_ratelimited("nf_queue: error creating packet message\n");
return NULL;
}
nla->nla_len = nla_attr_size(skb->len);
- skb_zerocopy(user_skb, skb, skb->len, hlen);
+ err = skb_zerocopy(user_skb, skb, skb->len, hlen);
+ if (err)
+ goto out;
/* Pad OVS_PACKET_ATTR_PACKET if linear copy was performed */
if (!(dp->user_features & OVS_DP_F_UNALIGNED)) {
err = genlmsg_unicast(ovs_dp_get_net(dp), user_skb, upcall_info->portid);
out:
+ if (err)
+ skb_tx_error(skb);
kfree_skb(nskb);
return err;
}
void ovs_flow_stats_get(struct sw_flow *flow, struct ovs_flow_stats *ovs_stats,
unsigned long *used, __be16 *tcp_flags)
{
- int cpu, cur_cpu;
+ int cpu;
*used = 0;
*tcp_flags = 0;
memset(ovs_stats, 0, sizeof(*ovs_stats));
+ local_bh_disable();
if (!flow->stats.is_percpu) {
stats_read(flow->stats.stat, ovs_stats, used, tcp_flags);
} else {
- cur_cpu = get_cpu();
for_each_possible_cpu(cpu) {
struct flow_stats *stats;
- if (cpu == cur_cpu)
- local_bh_disable();
-
stats = per_cpu_ptr(flow->stats.cpu_stats, cpu);
stats_read(stats, ovs_stats, used, tcp_flags);
-
- if (cpu == cur_cpu)
- local_bh_enable();
}
- put_cpu();
}
+ local_bh_enable();
}
static void stats_reset(struct flow_stats *stats)
void ovs_flow_stats_clear(struct sw_flow *flow)
{
- int cpu, cur_cpu;
+ int cpu;
+ local_bh_disable();
if (!flow->stats.is_percpu) {
stats_reset(flow->stats.stat);
} else {
- cur_cpu = get_cpu();
-
for_each_possible_cpu(cpu) {
-
- if (cpu == cur_cpu)
- local_bh_disable();
-
stats_reset(per_cpu_ptr(flow->stats.cpu_stats, cpu));
-
- if (cpu == cur_cpu)
- local_bh_enable();
}
- put_cpu();
}
+ local_bh_enable();
}
static int check_header(struct sk_buff *skb, int len)
goto out;
err = mutex_lock_interruptible(&u->readlock);
- if (err) {
- err = sock_intr_errno(sock_rcvtimeo(sk, noblock));
+ if (unlikely(err)) {
+ /* recvmsg() in non blocking mode is supposed to return -EAGAIN
+ * sk_rcvtimeo is not honored by mutex_lock_interruptible()
+ */
+ err = noblock ? -EAGAIN : -ERESTARTSYS;
goto out;
}
struct unix_sock *u = unix_sk(sk);
DECLARE_SOCKADDR(struct sockaddr_un *, sunaddr, msg->msg_name);
int copied = 0;
+ int noblock = flags & MSG_DONTWAIT;
int check_creds = 0;
int target;
int err = 0;
goto out;
target = sock_rcvlowat(sk, flags&MSG_WAITALL, size);
- timeo = sock_rcvtimeo(sk, flags&MSG_DONTWAIT);
+ timeo = sock_rcvtimeo(sk, noblock);
/* Lock the socket to prevent queue disordering
* while sleeps in memcpy_tomsg
}
err = mutex_lock_interruptible(&u->readlock);
- if (err) {
- err = sock_intr_errno(timeo);
+ if (unlikely(err)) {
+ /* recvmsg() in non blocking mode is supposed to return -EAGAIN
+ * sk_rcvtimeo is not honored by mutex_lock_interruptible()
+ */
+ err = noblock ? -EAGAIN : -ERESTARTSYS;
goto out;
}
static int alc5632_probe(struct snd_soc_codec *codec)
{
struct alc5632_priv *alc5632 = snd_soc_codec_get_drvdata(codec);
- int ret;
/* power on device */
alc5632_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
return -EINVAL;
}
- return ret;
+ return 0;
}
/* power down chip */
};
MODULE_DEVICE_TABLE(i2c, alc5632_i2c_table);
+static const struct of_device_id alc5632_of_match[] = {
+ { .compatible = "realtek,alc5632", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, alc5632_of_match);
+
/* i2c codec control layer */
static struct i2c_driver alc5632_i2c_driver = {
.driver = {
.name = "alc5632",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(alc5632_of_match),
},
.probe = alc5632_i2c_probe,
.remove = alc5632_i2c_remove,
}
dev_info(&i2c_client->dev, "Cirrus Logic CS42L52, Revision: %02X\n",
- reg & 0xFF);
+ reg & CS42L52_CHIP_REV_MASK);
/* Set Platform Data */
if (cs42l52->pdata.mica_diff_cfg)
#define CS42L52_CHIP_REV_A0 0x00
#define CS42L52_CHIP_REV_A1 0x01
#define CS42L52_CHIP_REV_B0 0x02
-#define CS42L52_CHIP_REV_MASK 0x03
+#define CS42L52_CHIP_REV_MASK 0x07
#define CS42L52_PWRCTL1 0x02
#define CS42L52_PWRCTL1_PDN_ALL 0x9F
}
dev_info(&i2c->dev, "Revision: %d.%d\n",
- (reg & DA732X_ID_MAJOR_MASK), (reg & DA732X_ID_MINOR_MASK));
+ (reg & DA732X_ID_MAJOR_MASK) >> 4,
+ (reg & DA732X_ID_MINOR_MASK));
ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_da732x,
da732x_dai, ARRAY_SIZE(da732x_dai));
};
MODULE_DEVICE_TABLE(i2c, max98090_i2c_id);
+static const struct of_device_id max98090_of_match[] = {
+ { .compatible = "maxim,max98090", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, max98090_of_match);
+
static struct i2c_driver max98090_i2c_driver = {
.driver = {
.name = "max98090",
.owner = THIS_MODULE,
.pm = &max98090_pm,
+ .of_match_table = of_match_ptr(max98090_of_match),
},
.probe = max98090_i2c_probe,
.remove = max98090_i2c_remove,
mcasp_clr_bits(mcasp, DAVINCI_MCASP_ACLKXCTL_REG, ACLKXPOL);
mcasp_clr_bits(mcasp, DAVINCI_MCASP_TXFMCTL_REG, FSXPOL);
- mcasp_set_bits(mcasp, DAVINCI_MCASP_ACLKRCTL_REG, ACLKRPOL);
+ mcasp_clr_bits(mcasp, DAVINCI_MCASP_ACLKRCTL_REG, ACLKRPOL);
mcasp_clr_bits(mcasp, DAVINCI_MCASP_RXFMCTL_REG, FSRPOL);
break;
mcasp_set_bits(mcasp, DAVINCI_MCASP_ACLKXCTL_REG, ACLKXPOL);
mcasp_set_bits(mcasp, DAVINCI_MCASP_TXFMCTL_REG, FSXPOL);
- mcasp_clr_bits(mcasp, DAVINCI_MCASP_ACLKRCTL_REG, ACLKRPOL);
+ mcasp_set_bits(mcasp, DAVINCI_MCASP_ACLKRCTL_REG, ACLKRPOL);
mcasp_set_bits(mcasp, DAVINCI_MCASP_RXFMCTL_REG, FSRPOL);
break;
mcasp_clr_bits(mcasp, DAVINCI_MCASP_ACLKXCTL_REG, ACLKXPOL);
mcasp_set_bits(mcasp, DAVINCI_MCASP_TXFMCTL_REG, FSXPOL);
- mcasp_set_bits(mcasp, DAVINCI_MCASP_ACLKRCTL_REG, ACLKRPOL);
+ mcasp_clr_bits(mcasp, DAVINCI_MCASP_ACLKRCTL_REG, ACLKRPOL);
mcasp_set_bits(mcasp, DAVINCI_MCASP_RXFMCTL_REG, FSRPOL);
break;
#include "fsl_sai.h"
+#define FSL_SAI_FLAGS (FSL_SAI_CSR_SEIE |\
+ FSL_SAI_CSR_FEIE)
+
+static irqreturn_t fsl_sai_isr(int irq, void *devid)
+{
+ struct fsl_sai *sai = (struct fsl_sai *)devid;
+ struct device *dev = &sai->pdev->dev;
+ u32 xcsr, mask;
+
+ /* Only handle those what we enabled */
+ mask = (FSL_SAI_FLAGS >> FSL_SAI_CSR_xIE_SHIFT) << FSL_SAI_CSR_xF_SHIFT;
+
+ /* Tx IRQ */
+ regmap_read(sai->regmap, FSL_SAI_TCSR, &xcsr);
+ xcsr &= mask;
+
+ if (xcsr & FSL_SAI_CSR_WSF)
+ dev_dbg(dev, "isr: Start of Tx word detected\n");
+
+ if (xcsr & FSL_SAI_CSR_SEF)
+ dev_warn(dev, "isr: Tx Frame sync error detected\n");
+
+ if (xcsr & FSL_SAI_CSR_FEF) {
+ dev_warn(dev, "isr: Transmit underrun detected\n");
+ /* FIFO reset for safety */
+ xcsr |= FSL_SAI_CSR_FR;
+ }
+
+ if (xcsr & FSL_SAI_CSR_FWF)
+ dev_dbg(dev, "isr: Enabled transmit FIFO is empty\n");
+
+ if (xcsr & FSL_SAI_CSR_FRF)
+ dev_dbg(dev, "isr: Transmit FIFO watermark has been reached\n");
+
+ regmap_update_bits(sai->regmap, FSL_SAI_TCSR,
+ FSL_SAI_CSR_xF_W_MASK | FSL_SAI_CSR_FR, xcsr);
+
+ /* Rx IRQ */
+ regmap_read(sai->regmap, FSL_SAI_RCSR, &xcsr);
+ xcsr &= mask;
+
+ if (xcsr & FSL_SAI_CSR_WSF)
+ dev_dbg(dev, "isr: Start of Rx word detected\n");
+
+ if (xcsr & FSL_SAI_CSR_SEF)
+ dev_warn(dev, "isr: Rx Frame sync error detected\n");
+
+ if (xcsr & FSL_SAI_CSR_FEF) {
+ dev_warn(dev, "isr: Receive overflow detected\n");
+ /* FIFO reset for safety */
+ xcsr |= FSL_SAI_CSR_FR;
+ }
+
+ if (xcsr & FSL_SAI_CSR_FWF)
+ dev_dbg(dev, "isr: Enabled receive FIFO is full\n");
+
+ if (xcsr & FSL_SAI_CSR_FRF)
+ dev_dbg(dev, "isr: Receive FIFO watermark has been reached\n");
+
+ regmap_update_bits(sai->regmap, FSL_SAI_RCSR,
+ FSL_SAI_CSR_xF_W_MASK | FSL_SAI_CSR_FR, xcsr);
+
+ return IRQ_HANDLED;
+}
+
static int fsl_sai_set_dai_sysclk_tr(struct snd_soc_dai *cpu_dai,
int clk_id, unsigned int freq, int fsl_dir)
{
* that is, together with the last bit of the previous
* data word.
*/
- val_cr2 &= ~FSL_SAI_CR2_BCP;
+ val_cr2 |= FSL_SAI_CR2_BCP;
val_cr4 |= FSL_SAI_CR4_FSE | FSL_SAI_CR4_FSP;
break;
case SND_SOC_DAIFMT_LEFT_J:
* Frame high, one word length for frame sync,
* frame sync asserts with the first bit of the frame.
*/
- val_cr2 &= ~FSL_SAI_CR2_BCP;
+ val_cr2 |= FSL_SAI_CR2_BCP;
val_cr4 &= ~(FSL_SAI_CR4_FSE | FSL_SAI_CR4_FSP);
break;
case SND_SOC_DAIFMT_DSP_A:
* that is, together with the last bit of the previous
* data word.
*/
- val_cr2 &= ~FSL_SAI_CR2_BCP;
+ val_cr2 |= FSL_SAI_CR2_BCP;
val_cr4 &= ~FSL_SAI_CR4_FSP;
val_cr4 |= FSL_SAI_CR4_FSE;
sai->is_dsp_mode = true;
* Frame high, one bit for frame sync,
* frame sync asserts with the first bit of the frame.
*/
- val_cr2 &= ~FSL_SAI_CR2_BCP;
+ val_cr2 |= FSL_SAI_CR2_BCP;
val_cr4 &= ~(FSL_SAI_CR4_FSE | FSL_SAI_CR4_FSP);
sai->is_dsp_mode = true;
break;
{
struct fsl_sai *sai = dev_get_drvdata(cpu_dai->dev);
- regmap_update_bits(sai->regmap, FSL_SAI_TCSR, 0xffffffff, 0x0);
- regmap_update_bits(sai->regmap, FSL_SAI_RCSR, 0xffffffff, 0x0);
+ regmap_update_bits(sai->regmap, FSL_SAI_TCSR, 0xffffffff, FSL_SAI_FLAGS);
+ regmap_update_bits(sai->regmap, FSL_SAI_RCSR, 0xffffffff, FSL_SAI_FLAGS);
regmap_update_bits(sai->regmap, FSL_SAI_TCR1, FSL_SAI_CR1_RFW_MASK,
FSL_SAI_MAXBURST_TX * 2);
regmap_update_bits(sai->regmap, FSL_SAI_RCR1, FSL_SAI_CR1_RFW_MASK,
struct fsl_sai *sai;
struct resource *res;
void __iomem *base;
- int ret;
+ int irq, ret;
sai = devm_kzalloc(&pdev->dev, sizeof(*sai), GFP_KERNEL);
if (!sai)
return -ENOMEM;
+ sai->pdev = pdev;
+
sai->big_endian_regs = of_property_read_bool(np, "big-endian-regs");
if (sai->big_endian_regs)
fsl_sai_regmap_config.val_format_endian = REGMAP_ENDIAN_BIG;
return PTR_ERR(sai->regmap);
}
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "no irq for node %s\n", np->full_name);
+ return irq;
+ }
+
+ ret = devm_request_irq(&pdev->dev, irq, fsl_sai_isr, 0, np->name, sai);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to claim irq %u\n", irq);
+ return ret;
+ }
+
sai->dma_params_rx.addr = res->start + FSL_SAI_RDR;
sai->dma_params_tx.addr = res->start + FSL_SAI_TDR;
sai->dma_params_rx.maxburst = FSL_SAI_MAXBURST_RX;
/* SAI Transmit/Recieve Control Register */
#define FSL_SAI_CSR_TERE BIT(31)
+#define FSL_SAI_CSR_FR BIT(25)
+#define FSL_SAI_CSR_xF_SHIFT 16
+#define FSL_SAI_CSR_xF_W_SHIFT 18
+#define FSL_SAI_CSR_xF_MASK (0x1f << FSL_SAI_CSR_xF_SHIFT)
+#define FSL_SAI_CSR_xF_W_MASK (0x7 << FSL_SAI_CSR_xF_W_SHIFT)
+#define FSL_SAI_CSR_WSF BIT(20)
+#define FSL_SAI_CSR_SEF BIT(19)
+#define FSL_SAI_CSR_FEF BIT(18)
#define FSL_SAI_CSR_FWF BIT(17)
+#define FSL_SAI_CSR_FRF BIT(16)
+#define FSL_SAI_CSR_xIE_SHIFT 8
+#define FSL_SAI_CSR_WSIE BIT(12)
+#define FSL_SAI_CSR_SEIE BIT(11)
+#define FSL_SAI_CSR_FEIE BIT(10)
+#define FSL_SAI_CSR_FWIE BIT(9)
#define FSL_SAI_CSR_FRIE BIT(8)
#define FSL_SAI_CSR_FRDE BIT(0)
#define FSL_SAI_MAXBURST_RX 6
struct fsl_sai {
+ struct platform_device *pdev;
struct regmap *regmap;
bool big_endian_regs;