unimore/kernel-hacking-2024-linux-steffo
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Linux 3.18

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Merge tag 'v3.18' into drm-next

Linux 3.18

Backmerge Linus tree into -next as we had conflicts in i915/radeon/nouveau,
and everyone was solving them individually.

* tag 'v3.18': (57 commits)
  Linux 3.18
  watchdog: s3c2410_wdt: Fix the mask bit offset for Exynos7
  uapi: fix to export linux/vm_sockets.h
  i2c: cadence: Set the hardware time-out register to maximum value
  i2c: davinci: generate STP always when NACK is received
  ahci: disable MSI on SAMSUNG 0xa800 SSD
  context_tracking: Restore previous state in schedule_user
  slab: fix nodeid bounds check for non-contiguous node IDs
  lib/genalloc.c: export devm_gen_pool_create() for modules
  mm: fix anon_vma_clone() error treatment
  mm: fix swapoff hang after page migration and fork
  fat: fix oops on corrupted vfat fs
  ipc/sem.c: fully initialize sem_array before making it visible
  drivers/input/evdev.c: don't kfree() a vmalloc address
  cxgb4: Fill in supported link mode for SFP modules
  xen-netfront: Remove BUGs on paged skb data which crosses a page boundary
  mm/vmpressure.c: fix race in vmpressure_work_fn()
  mm: frontswap: invalidate expired data on a dup-store failure
  mm: do not overwrite reserved pages counter at show_mem()
  drm/radeon: kernel panic in drm_calc_vbltimestamp_from_scanoutpos with 3.18.0-rc6
  ...

Conflicts:
	drivers/gpu/drm/i915/intel_display.c
	drivers/gpu/drm/nouveau/nouveau_drm.c
	drivers/gpu/drm/radeon/radeon_cs.c
This commit is contained in:
Dave Airlie 2014-12-08 10:33:52 +10:00
commit 8c86394470
60 changed files with 356 additions and 268 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

38
MAINTAINERS
View file

@ -1838,7 +1838,7 @@ F: include/net/ax25.h
F: net/ax25/
AZ6007 DVB DRIVER
M: Mauro Carvalho Chehab <m.chehab@samsung.com>
M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-media@vger.kernel.org
W: http://linuxtv.org
T: git git://linuxtv.org/media_tree.git
@ -2208,7 +2208,7 @@ F: Documentation/filesystems/btrfs.txt
F: fs/btrfs/
BTTV VIDEO4LINUX DRIVER
M: Mauro Carvalho Chehab <m.chehab@samsung.com>
M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-media@vger.kernel.org
W: http://linuxtv.org
T: git git://linuxtv.org/media_tree.git
@ -2729,7 +2729,7 @@ F: drivers/media/common/cx2341x*
F: include/media/cx2341x*
CX88 VIDEO4LINUX DRIVER
M: Mauro Carvalho Chehab <m.chehab@samsung.com>
M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-media@vger.kernel.org
W: http://linuxtv.org
T: git git://linuxtv.org/media_tree.git
@ -3419,7 +3419,7 @@ F: fs/ecryptfs/
EDAC-CORE
M: Doug Thompson <dougthompson@xmission.com>
M: Borislav Petkov <bp@alien8.de>
M: Mauro Carvalho Chehab <m.chehab@samsung.com>
M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-edac@vger.kernel.org
W: bluesmoke.sourceforge.net
S: Supported
@ -3468,7 +3468,7 @@ S: Maintained
F: drivers/edac/e7xxx_edac.c
EDAC-GHES
M: Mauro Carvalho Chehab <m.chehab@samsung.com>
M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-edac@vger.kernel.org
W: bluesmoke.sourceforge.net
S: Maintained
@ -3496,21 +3496,21 @@ S: Maintained
F: drivers/edac/i5000_edac.c
EDAC-I5400
M: Mauro Carvalho Chehab <m.chehab@samsung.com>
M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-edac@vger.kernel.org
W: bluesmoke.sourceforge.net
S: Maintained
F: drivers/edac/i5400_edac.c
EDAC-I7300
M: Mauro Carvalho Chehab <m.chehab@samsung.com>
M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-edac@vger.kernel.org
W: bluesmoke.sourceforge.net
S: Maintained
F: drivers/edac/i7300_edac.c
EDAC-I7CORE
M: Mauro Carvalho Chehab <m.chehab@samsung.com>
M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-edac@vger.kernel.org
W: bluesmoke.sourceforge.net
S: Maintained
@ -3553,7 +3553,7 @@ S: Maintained
F: drivers/edac/r82600_edac.c
EDAC-SBRIDGE
M: Mauro Carvalho Chehab <m.chehab@samsung.com>
M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-edac@vger.kernel.org
W: bluesmoke.sourceforge.net
S: Maintained
@ -3613,7 +3613,7 @@ S: Maintained
F: drivers/net/ethernet/ibm/ehea/
EM28XX VIDEO4LINUX DRIVER
M: Mauro Carvalho Chehab <m.chehab@samsung.com>
M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-media@vger.kernel.org
W: http://linuxtv.org
T: git git://linuxtv.org/media_tree.git
@ -5979,7 +5979,7 @@ S: Maintained
F: drivers/media/radio/radio-maxiradio*
MEDIA INPUT INFRASTRUCTURE (V4L/DVB)
M: Mauro Carvalho Chehab <m.chehab@samsung.com>
M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
P: LinuxTV.org Project
L: linux-media@vger.kernel.org
W: http://linuxtv.org
@ -8030,7 +8030,7 @@ S: Odd Fixes
F: drivers/media/i2c/saa6588*
SAA7134 VIDEO4LINUX DRIVER
M: Mauro Carvalho Chehab <m.chehab@samsung.com>
M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-media@vger.kernel.org
W: http://linuxtv.org
T: git git://linuxtv.org/media_tree.git
@ -8488,7 +8488,7 @@ S: Maintained
F: drivers/media/radio/si4713/radio-usb-si4713.c
SIANO DVB DRIVER
M: Mauro Carvalho Chehab <m.chehab@samsung.com>
M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-media@vger.kernel.org
W: http://linuxtv.org
T: git git://linuxtv.org/media_tree.git
@ -8699,7 +8699,9 @@ S: Maintained
F: drivers/leds/leds-net48xx.c
SOFTLOGIC 6x10 MPEG CODEC
M: Ismael Luceno <ismael.luceno@corp.bluecherry.net>
M: Bluecherry Maintainers <maintainers@bluecherrydvr.com>
M: Andrey Utkin <andrey.utkin@corp.bluecherry.net>
M: Andrey Utkin <andrey.krieger.utkin@gmail.com>
L: linux-media@vger.kernel.org
S: Supported
F: drivers/media/pci/solo6x10/
@ -9173,7 +9175,7 @@ S: Maintained
F: drivers/media/i2c/tda9840*
TEA5761 TUNER DRIVER
M: Mauro Carvalho Chehab <m.chehab@samsung.com>
M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-media@vger.kernel.org
W: http://linuxtv.org
T: git git://linuxtv.org/media_tree.git
@ -9181,7 +9183,7 @@ S: Odd fixes
F: drivers/media/tuners/tea5761.*
TEA5767 TUNER DRIVER
M: Mauro Carvalho Chehab <m.chehab@samsung.com>
M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-media@vger.kernel.org
W: http://linuxtv.org
T: git git://linuxtv.org/media_tree.git
@ -9493,7 +9495,7 @@ F: include/linux/shmem_fs.h
F: mm/shmem.c
TM6000 VIDEO4LINUX DRIVER
M: Mauro Carvalho Chehab <m.chehab@samsung.com>
M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-media@vger.kernel.org
W: http://linuxtv.org
T: git git://linuxtv.org/media_tree.git
@ -10314,7 +10316,7 @@ S: Maintained
F: arch/x86/kernel/cpu/mcheck/*
XC2028/3028 TUNER DRIVER
M: Mauro Carvalho Chehab <m.chehab@samsung.com>
M: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
L: linux-media@vger.kernel.org
W: http://linuxtv.org
T: git git://linuxtv.org/media_tree.git

2
Makefile
View file

@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 18
SUBLEVEL = 0
EXTRAVERSION = -rc7
EXTRAVERSION =
NAME = Diseased Newt
# *DOCUMENTATION*

8
arch/s390/kernel/nmi.c
View file

@ -54,12 +54,8 @@ void s390_handle_mcck(void)
*/
local_irq_save(flags);
local_mcck_disable();
/*
* Ummm... Does this make sense at all? Copying the percpu struct
* and then zapping it one statement later?
*/
memcpy(&mcck, this_cpu_ptr(&cpu_mcck), sizeof(mcck));
memset(&mcck, 0, sizeof(struct mcck_struct));
mcck = *this_cpu_ptr(&cpu_mcck);
memset(this_cpu_ptr(&cpu_mcck), 0, sizeof(mcck));
clear_cpu_flag(CIF_MCCK_PENDING);
local_mcck_enable();
local_irq_restore(flags);

2
arch/x86/boot/compressed/Makefile
View file

@ -76,7 +76,7 @@ suffix-$(CONFIG_KERNEL_XZ) := xz
suffix-$(CONFIG_KERNEL_LZO) := lzo
suffix-$(CONFIG_KERNEL_LZ4) := lz4
RUN_SIZE = $(shell objdump -h vmlinux | \
RUN_SIZE = $(shell $(OBJDUMP) -h vmlinux | \
perl $(srctree)/arch/x86/tools/calc_run_size.pl)
quiet_cmd_mkpiggy = MKPIGGY $@
cmd_mkpiggy = $(obj)/mkpiggy $< $(RUN_SIZE) > $@ || ( rm -f $@ ; false )

2
arch/x86/kernel/cpu/microcode/core.c
View file

@ -465,6 +465,7 @@ static void mc_bp_resume(void)
if (uci->valid && uci->mc)
microcode_ops->apply_microcode(cpu);
#ifdef CONFIG_X86_64
else if (!uci->mc)
/*
* We might resume and not have applied late microcode but still
@ -473,6 +474,7 @@ static void mc_bp_resume(void)
* applying patches early on the APs.
*/
load_ucode_ap();
#endif
}
static struct syscore_ops mc_syscore_ops = {

13
block/bio-integrity.c
View file

@ -216,9 +216,10 @@ static int bio_integrity_process(struct bio *bio,
{
struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev);
struct blk_integrity_iter iter;
struct bio_vec *bv;
struct bvec_iter bviter;
struct bio_vec bv;
struct bio_integrity_payload *bip = bio_integrity(bio);
unsigned int i, ret = 0;
unsigned int ret = 0;
void *prot_buf = page_address(bip->bip_vec->bv_page) +
bip->bip_vec->bv_offset;
@ -227,11 +228,11 @@ static int bio_integrity_process(struct bio *bio,
iter.seed = bip_get_seed(bip);
iter.prot_buf = prot_buf;
bio_for_each_segment_all(bv, bio, i) {
void *kaddr = kmap_atomic(bv->bv_page);
bio_for_each_segment(bv, bio, bviter) {
void *kaddr = kmap_atomic(bv.bv_page);
iter.data_buf = kaddr + bv->bv_offset;
iter.data_size = bv->bv_len;
iter.data_buf = kaddr + bv.bv_offset;
iter.data_size = bv.bv_len;
ret = proc_fn(&iter);
if (ret) {

3
drivers/acpi/video.c
View file

@ -1164,7 +1164,8 @@ static bool acpi_video_device_in_dod(struct acpi_video_device *device)
return true;
for (i = 0; i < video->attached_count; i++) {
if (video->attached_array[i].bind_info == device)
if ((video->attached_array[i].value.int_val & 0xfff) ==
(device->device_id & 0xfff))
return true;
}

4
drivers/ata/ahci.c
View file

@ -321,6 +321,9 @@ static const struct pci_device_id ahci_pci_tbl[] = {
{ PCI_VDEVICE(INTEL, 0x8c87), board_ahci }, /* 9 Series RAID */
{ PCI_VDEVICE(INTEL, 0x8c8e), board_ahci }, /* 9 Series RAID */
{ PCI_VDEVICE(INTEL, 0x8c8f), board_ahci }, /* 9 Series RAID */
{ PCI_VDEVICE(INTEL, 0x9d03), board_ahci }, /* Sunrise Point-LP AHCI */
{ PCI_VDEVICE(INTEL, 0x9d05), board_ahci }, /* Sunrise Point-LP RAID */
{ PCI_VDEVICE(INTEL, 0x9d07), board_ahci }, /* Sunrise Point-LP RAID */
{ PCI_VDEVICE(INTEL, 0xa103), board_ahci }, /* Sunrise Point-H AHCI */
{ PCI_VDEVICE(INTEL, 0xa103), board_ahci }, /* Sunrise Point-H RAID */
{ PCI_VDEVICE(INTEL, 0xa105), board_ahci }, /* Sunrise Point-H RAID */
@ -492,6 +495,7 @@ static const struct pci_device_id ahci_pci_tbl[] = {
* enabled. https://bugzilla.kernel.org/show_bug.cgi?id=60731
*/
{ PCI_VDEVICE(SAMSUNG, 0x1600), board_ahci_nomsi },
{ PCI_VDEVICE(SAMSUNG, 0xa800), board_ahci_nomsi },
/* Enmotus */
{ PCI_DEVICE(0x1c44, 0x8000), board_ahci },

2
drivers/ata/sata_fsl.c
View file

@ -1488,7 +1488,7 @@ static int sata_fsl_probe(struct platform_device *ofdev)
host_priv->csr_base = csr_base;
irq = irq_of_parse_and_map(ofdev->dev.of_node, 0);
if (irq < 0) {
if (!irq) {
dev_err(&ofdev->dev, "invalid irq from platform\n");
goto error_exit_with_cleanup;
}

3
drivers/gpu/drm/i915/intel_display.c
View file

@ -4565,7 +4565,6 @@ static void ironlake_crtc_disable(struct drm_crtc *crtc)
ironlake_fdi_disable(crtc);
ironlake_disable_pch_transcoder(dev_priv, pipe);
intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, true);
if (HAS_PCH_CPT(dev)) {
/* disable TRANS_DP_CTL */
@ -4636,8 +4635,6 @@ static void haswell_crtc_disable(struct drm_crtc *crtc)
if (intel_crtc->config.has_pch_encoder) {
lpt_disable_pch_transcoder(dev_priv);
intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A,
true);
intel_ddi_fdi_disable(crtc);
}

22
drivers/gpu/drm/i915/intel_lvds.c
View file

@ -899,6 +899,17 @@ void intel_lvds_init(struct drm_device *dev)
int pipe;
u8 pin;
/*
* Unlock registers and just leave them unlocked. Do this before
* checking quirk lists to avoid bogus WARNINGs.
*/
if (HAS_PCH_SPLIT(dev)) {
I915_WRITE(PCH_PP_CONTROL,
I915_READ(PCH_PP_CONTROL) | PANEL_UNLOCK_REGS);
} else {
I915_WRITE(PP_CONTROL,
I915_READ(PP_CONTROL) | PANEL_UNLOCK_REGS);
}
if (!intel_lvds_supported(dev))
return;
@ -1097,17 +1108,6 @@ void intel_lvds_init(struct drm_device *dev)
lvds_encoder->a3_power = I915_READ(lvds_encoder->reg) &
LVDS_A3_POWER_MASK;
/*
* Unlock registers and just
* leave them unlocked
*/
if (HAS_PCH_SPLIT(dev)) {
I915_WRITE(PCH_PP_CONTROL,
I915_READ(PCH_PP_CONTROL) | PANEL_UNLOCK_REGS);
} else {
I915_WRITE(PP_CONTROL,
I915_READ(PP_CONTROL) | PANEL_UNLOCK_REGS);
}
lvds_connector->lid_notifier.notifier_call = intel_lid_notify;
if (acpi_lid_notifier_register(&lvds_connector->lid_notifier)) {
DRM_DEBUG_KMS("lid notifier registration failed\n");

1
drivers/gpu/drm/nouveau/core/engine/device/nvc0.c
View file

@ -218,7 +218,6 @@ nvc0_identify(struct nouveau_device *device)
device->oclass[NVDEV_ENGINE_BSP ] = &nvc0_bsp_oclass;
device->oclass[NVDEV_ENGINE_PPP ] = &nvc0_ppp_oclass;
device->oclass[NVDEV_ENGINE_COPY0 ] = &nvc0_copy0_oclass;
device->oclass[NVDEV_ENGINE_COPY1 ] = &nvc0_copy1_oclass;
device->oclass[NVDEV_ENGINE_DISP ] = nva3_disp_oclass;
device->oclass[NVDEV_ENGINE_PERFMON] = &nvc0_perfmon_oclass;
break;

2
drivers/gpu/drm/nouveau/core/engine/fifo/nv04.c
View file

@ -551,8 +551,8 @@ nv04_fifo_intr(struct nouveau_subdev *subdev)
}
if (status & 0x40000000) {
nouveau_fifo_uevent(&priv->base);
nv_wr32(priv, 0x002100, 0x40000000);
nouveau_fifo_uevent(&priv->base);
status &= ~0x40000000;
}
}

4
drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
View file

@ -740,6 +740,8 @@ nvc0_fifo_intr_engine_unit(struct nvc0_fifo_priv *priv, int engn)
u32 inte = nv_rd32(priv, 0x002628);
u32 unkn;
nv_wr32(priv, 0x0025a8 + (engn * 0x04), intr);
for (unkn = 0; unkn < 8; unkn++) {
u32 ints = (intr >> (unkn * 0x04)) & inte;
if (ints & 0x1) {
@ -751,8 +753,6 @@ nvc0_fifo_intr_engine_unit(struct nvc0_fifo_priv *priv, int engn)
nv_mask(priv, 0x002628, ints, 0);
}
}
nv_wr32(priv, 0x0025a8 + (engn * 0x04), intr);
}
static void

2
drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c
View file

@ -982,8 +982,8 @@ nve0_fifo_intr(struct nouveau_subdev *subdev)
}
if (stat & 0x80000000) {
nve0_fifo_intr_engine(priv);
nv_wr32(priv, 0x002100, 0x80000000);
nve0_fifo_intr_engine(priv);
stat &= ~0x80000000;
}

2
drivers/gpu/drm/nouveau/nouveau_drm.c
View file

@ -664,7 +664,6 @@ nouveau_pmops_suspend(struct device *dev)
pci_save_state(pdev);
pci_disable_device(pdev);
pci_ignore_hotplug(pdev);
pci_set_power_state(pdev, PCI_D3hot);
return 0;
}
@ -732,6 +731,7 @@ nouveau_pmops_runtime_suspend(struct device *dev)
ret = nouveau_do_suspend(drm_dev, true);
pci_save_state(pdev);
pci_disable_device(pdev);
pci_ignore_hotplug(pdev);
pci_set_power_state(pdev, PCI_D3cold);
drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
return ret;

92
drivers/gpu/drm/nouveau/nouveau_fence.c
View file

@ -52,20 +52,24 @@ nouveau_fctx(struct nouveau_fence *fence)
return container_of(fence->base.lock, struct nouveau_fence_chan, lock);
}
static void
static int
nouveau_fence_signal(struct nouveau_fence *fence)
{
int drop = 0;
fence_signal_locked(&fence->base);
list_del(&fence->head);
rcu_assign_pointer(fence->channel, NULL);
if (test_bit(FENCE_FLAG_USER_BITS, &fence->base.flags)) {
struct nouveau_fence_chan *fctx = nouveau_fctx(fence);
if (!--fctx->notify_ref)
nvif_notify_put(&fctx->notify);
drop = 1;
}
fence_put(&fence->base);
return drop;
}
static struct nouveau_fence *
@ -88,16 +92,23 @@ nouveau_fence_context_del(struct nouveau_fence_chan *fctx)
{
struct nouveau_fence *fence;
nvif_notify_fini(&fctx->notify);
spin_lock_irq(&fctx->lock);
while (!list_empty(&fctx->pending)) {
fence = list_entry(fctx->pending.next, typeof(*fence), head);
nouveau_fence_signal(fence);
fence->channel = NULL;
if (nouveau_fence_signal(fence))
nvif_notify_put(&fctx->notify);
}
spin_unlock_irq(&fctx->lock);
nvif_notify_fini(&fctx->notify);
fctx->dead = 1;
/*
* Ensure that all accesses to fence->channel complete before freeing
* the channel.
*/
synchronize_rcu();
}
static void
@ -112,21 +123,23 @@ nouveau_fence_context_free(struct nouveau_fence_chan *fctx)
kref_put(&fctx->fence_ref, nouveau_fence_context_put);
}
static void
static int
nouveau_fence_update(struct nouveau_channel *chan, struct nouveau_fence_chan *fctx)
{
struct nouveau_fence *fence;
int drop = 0;
u32 seq = fctx->read(chan);
while (!list_empty(&fctx->pending)) {
fence = list_entry(fctx->pending.next, typeof(*fence), head);
if ((int)(seq - fence->base.seqno) < 0)
return;
break;
nouveau_fence_signal(fence);
drop |= nouveau_fence_signal(fence);
}
return drop;
}
static int
@ -135,18 +148,21 @@ nouveau_fence_wait_uevent_handler(struct nvif_notify *notify)
struct nouveau_fence_chan *fctx =
container_of(notify, typeof(*fctx), notify);
unsigned long flags;
int ret = NVIF_NOTIFY_KEEP;
spin_lock_irqsave(&fctx->lock, flags);
if (!list_empty(&fctx->pending)) {
struct nouveau_fence *fence;
struct nouveau_channel *chan;
fence = list_entry(fctx->pending.next, typeof(*fence), head);
nouveau_fence_update(fence->channel, fctx);
chan = rcu_dereference_protected(fence->channel, lockdep_is_held(&fctx->lock));
if (nouveau_fence_update(fence->channel, fctx))
ret = NVIF_NOTIFY_DROP;
}
spin_unlock_irqrestore(&fctx->lock, flags);
/* Always return keep here. NVIF refcount is handled with nouveau_fence_update */
return NVIF_NOTIFY_KEEP;
return ret;
}
void
@ -262,7 +278,10 @@ nouveau_fence_emit(struct nouveau_fence *fence, struct nouveau_channel *chan)
if (!ret) {
fence_get(&fence->base);
spin_lock_irq(&fctx->lock);
nouveau_fence_update(chan, fctx);
if (nouveau_fence_update(chan, fctx))
nvif_notify_put(&fctx->notify);
list_add_tail(&fence->head, &fctx->pending);
spin_unlock_irq(&fctx->lock);
}
@ -276,13 +295,16 @@ nouveau_fence_done(struct nouveau_fence *fence)
if (fence->base.ops == &nouveau_fence_ops_legacy ||
fence->base.ops == &nouveau_fence_ops_uevent) {
struct nouveau_fence_chan *fctx = nouveau_fctx(fence);
struct nouveau_channel *chan;
unsigned long flags;
if (test_bit(FENCE_FLAG_SIGNALED_BIT, &fence->base.flags))
return true;
spin_lock_irqsave(&fctx->lock, flags);
nouveau_fence_update(fence->channel, fctx);
chan = rcu_dereference_protected(fence->channel, lockdep_is_held(&fctx->lock));
if (chan && nouveau_fence_update(chan, fctx))
nvif_notify_put(&fctx->notify);
spin_unlock_irqrestore(&fctx->lock, flags);
}
return fence_is_signaled(&fence->base);
@ -387,12 +409,18 @@ nouveau_fence_sync(struct nouveau_bo *nvbo, struct nouveau_channel *chan, bool e
if (fence && (!exclusive || !fobj || !fobj->shared_count)) {
struct nouveau_channel *prev = NULL;
bool must_wait = true;
f = nouveau_local_fence(fence, chan->drm);
if (f)
prev = f->channel;
if (f) {
rcu_read_lock();
prev = rcu_dereference(f->channel);
if (prev && (prev == chan || fctx->sync(f, prev, chan) == 0))
must_wait = false;
rcu_read_unlock();
}
if (!prev || (prev != chan && (ret = fctx->sync(f, prev, chan))))
if (must_wait)
ret = fence_wait(fence, intr);
return ret;
@ -403,19 +431,22 @@ nouveau_fence_sync(struct nouveau_bo *nvbo, struct nouveau_channel *chan, bool e
for (i = 0; i < fobj->shared_count && !ret; ++i) {
struct nouveau_channel *prev = NULL;
bool must_wait = true;
fence = rcu_dereference_protected(fobj->shared[i],
reservation_object_held(resv));
f = nouveau_local_fence(fence, chan->drm);
if (f)
prev = f->channel;
if (f) {
rcu_read_lock();
prev = rcu_dereference(f->channel);
if (prev && (prev == chan || fctx->sync(f, prev, chan) == 0))
must_wait = false;
rcu_read_unlock();
}
if (!prev || (prev != chan && (ret = fctx->sync(f, prev, chan))))
if (must_wait)
ret = fence_wait(fence, intr);
if (ret)
break;
}
return ret;
@ -463,7 +494,7 @@ static const char *nouveau_fence_get_timeline_name(struct fence *f)
struct nouveau_fence *fence = from_fence(f);
struct nouveau_fence_chan *fctx = nouveau_fctx(fence);
return fence->channel ? fctx->name : "dead channel";
return !fctx->dead ? fctx->name : "dead channel";
}
/*
@ -476,9 +507,16 @@ static bool nouveau_fence_is_signaled(struct fence *f)
{
struct nouveau_fence *fence = from_fence(f);
struct nouveau_fence_chan *fctx = nouveau_fctx(fence);
struct nouveau_channel *chan = fence->channel;
struct nouveau_channel *chan;
bool ret = false;
return (int)(fctx->read(chan) - fence->base.seqno) >= 0;
rcu_read_lock();
chan = rcu_dereference(fence->channel);
if (chan)
ret = (int)(fctx->read(chan) - fence->base.seqno) >= 0;
rcu_read_unlock();
return ret;
}
static bool nouveau_fence_no_signaling(struct fence *f)

4
drivers/gpu/drm/nouveau/nouveau_fence.h
View file

@ -14,7 +14,7 @@ struct nouveau_fence {
bool sysmem;
struct nouveau_channel *channel;
struct nouveau_channel __rcu *channel;
unsigned long timeout;
};
@ -47,7 +47,7 @@ struct nouveau_fence_chan {
char name[32];
struct nvif_notify notify;
int notify_ref;
int notify_ref, dead;
};
struct nouveau_fence_priv {

1
drivers/gpu/drm/radeon/radeon_cs.c
View file

@ -241,7 +241,6 @@ static int radeon_cs_sync_rings(struct radeon_cs_parser *p)
resv = reloc->robj->tbo.resv;
r = radeon_sync_resv(p->rdev, &p->ib.sync, resv,
reloc->tv.shared);
if (r)
return r;
}

2
drivers/gpu/drm/radeon/radeon_kms.c
View file

@ -800,6 +800,8 @@ int radeon_get_vblank_timestamp_kms(struct drm_device *dev, int crtc,
/* Get associated drm_crtc: */
drmcrtc = &rdev->mode_info.crtcs[crtc]->base;
if (!drmcrtc)
return -EINVAL;
/* Helper routine in DRM core does all the work: */
return drm_calc_vbltimestamp_from_scanoutpos(dev, crtc, max_error,

7
drivers/gpu/drm/radeon/radeon_object.c
View file

@ -233,6 +233,13 @@ int radeon_bo_create(struct radeon_device *rdev,
if (!(rdev->flags & RADEON_IS_PCIE))
bo->flags &= ~(RADEON_GEM_GTT_WC | RADEON_GEM_GTT_UC);
#ifdef CONFIG_X86_32
/* XXX: Write-combined CPU mappings of GTT seem broken on 32-bit
* See https://bugs.freedesktop.org/show_bug.cgi?id=84627
*/
bo->flags &= ~RADEON_GEM_GTT_WC;
#endif
radeon_ttm_placement_from_domain(bo, domain);
/* Kernel allocation are uninterruptible */
down_read(&rdev->pm.mclk_lock);

11
drivers/i2c/busses/i2c-cadence.c
View file

@ -111,6 +111,8 @@
#define CDNS_I2C_DIVA_MAX 4
#define CDNS_I2C_DIVB_MAX 64
#define CDNS_I2C_TIMEOUT_MAX 0xFF
#define cdns_i2c_readreg(offset) readl_relaxed(id->membase + offset)
#define cdns_i2c_writereg(val, offset) writel_relaxed(val, id->membase + offset)
@ -852,6 +854,15 @@ static int cdns_i2c_probe(struct platform_device *pdev)
goto err_clk_dis;
}
/*
* Cadence I2C controller has a bug wherein it generates
* invalid read transaction after HW timeout in master receiver mode.
* HW timeout is not used by this driver and the interrupt is disabled.
* But the feature itself cannot be disabled. Hence maximum value
* is written to this register to reduce the chances of error.
*/
cdns_i2c_writereg(CDNS_I2C_TIMEOUT_MAX, CDNS_I2C_TIME_OUT_OFFSET);
dev_info(&pdev->dev, "%u kHz mmio %08lx irq %d\n",
id->i2c_clk / 1000, (unsigned long)r_mem->start, id->irq);

2
drivers/i2c/busses/i2c-davinci.c
View file

@ -407,11 +407,9 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop)
if (dev->cmd_err & DAVINCI_I2C_STR_NACK) {
if (msg->flags & I2C_M_IGNORE_NAK)
return msg->len;
if (stop) {
w = davinci_i2c_read_reg(dev, DAVINCI_I2C_MDR_REG);
w |= DAVINCI_I2C_MDR_STP;
davinci_i2c_write_reg(dev, DAVINCI_I2C_MDR_REG, w);
}
return -EREMOTEIO;
}
return -EIO;

2
drivers/i2c/busses/i2c-designware-core.c
View file

@ -359,7 +359,7 @@ int i2c_dw_init(struct dw_i2c_dev *dev)
}
/* Configure Tx/Rx FIFO threshold levels */
dw_writel(dev, dev->tx_fifo_depth - 1, DW_IC_TX_TL);
dw_writel(dev, dev->tx_fifo_depth / 2, DW_IC_TX_TL);
dw_writel(dev, 0, DW_IC_RX_TL);
/* configure the i2c master */

10
drivers/i2c/busses/i2c-omap.c
View file

@ -922,14 +922,12 @@ omap_i2c_isr_thread(int this_irq, void *dev_id)
if (stat & OMAP_I2C_STAT_NACK) {
err |= OMAP_I2C_STAT_NACK;
omap_i2c_ack_stat(dev, OMAP_I2C_STAT_NACK);
break;
}
if (stat & OMAP_I2C_STAT_AL) {
dev_err(dev->dev, "Arbitration lost\n");
err |= OMAP_I2C_STAT_AL;
omap_i2c_ack_stat(dev, OMAP_I2C_STAT_AL);
break;
}
/*
@ -954,11 +952,13 @@ omap_i2c_isr_thread(int this_irq, void *dev_id)
if (dev->fifo_size)
num_bytes = dev->buf_len;
omap_i2c_receive_data(dev, num_bytes, true);
if (dev->errata & I2C_OMAP_ERRATA_I207)
if (dev->errata & I2C_OMAP_ERRATA_I207) {
i2c_omap_errata_i207(dev, stat);
num_bytes = (omap_i2c_read_reg(dev,
OMAP_I2C_BUFSTAT_REG) >> 8) & 0x3F;
}
omap_i2c_receive_data(dev, num_bytes, true);
omap_i2c_ack_stat(dev, OMAP_I2C_STAT_RDR);
continue;
}

2
drivers/input/evdev.c
View file

@ -421,7 +421,7 @@ static int evdev_open(struct inode *inode, struct file *file)
err_free_client:
evdev_detach_client(evdev, client);
kfree(client);
kvfree(client);
return error;
}

2
drivers/media/i2c/smiapp/smiapp-core.c
View file

@ -2190,7 +2190,7 @@ static int smiapp_set_selection(struct v4l2_subdev *subdev,
ret = smiapp_set_compose(subdev, fh, sel);
break;
default:
BUG();
ret = -EINVAL;
}
mutex_unlock(&sensor->mutex);

6
drivers/media/pci/cx23885/cx23885-core.c
View file

@ -1078,7 +1078,7 @@ static __le32 *cx23885_risc_field(__le32 *rp, struct scatterlist *sglist,
for (line = 0; line < lines; line++) {
while (offset && offset >= sg_dma_len(sg)) {
offset -= sg_dma_len(sg);
sg++;
sg = sg_next(sg);
}
if (lpi && line > 0 && !(line % lpi))
@ -1101,14 +1101,14 @@ static __le32 *cx23885_risc_field(__le32 *rp, struct scatterlist *sglist,
*(rp++) = cpu_to_le32(0); /* bits 63-32 */
todo -= (sg_dma_len(sg)-offset);
offset = 0;
sg++;
sg = sg_next(sg);
while (todo > sg_dma_len(sg)) {
*(rp++) = cpu_to_le32(RISC_WRITE|
sg_dma_len(sg));
*(rp++) = cpu_to_le32(sg_dma_address(sg));
*(rp++) = cpu_to_le32(0); /* bits 63-32 */
todo -= sg_dma_len(sg);
sg++;
sg = sg_next(sg);
}
*(rp++) = cpu_to_le32(RISC_WRITE|RISC_EOL|todo);
*(rp++) = cpu_to_le32(sg_dma_address(sg));

10
drivers/media/pci/solo6x10/solo6x10-core.c
View file

@ -105,11 +105,8 @@ static irqreturn_t solo_isr(int irq, void *data)
if (!status)
return IRQ_NONE;
if (status & ~solo_dev->irq_mask) {
solo_reg_write(solo_dev, SOLO_IRQ_STAT,
status & ~solo_dev->irq_mask);
status &= solo_dev->irq_mask;
}
/* Acknowledge all interrupts immediately */
solo_reg_write(solo_dev, SOLO_IRQ_STAT, status);
if (status & SOLO_IRQ_PCI_ERR)
solo_p2m_error_isr(solo_dev);
@ -132,9 +129,6 @@ static irqreturn_t solo_isr(int irq, void *data)
if (status & SOLO_IRQ_G723)
solo_g723_isr(solo_dev);
/* Clear all interrupts handled */
solo_reg_write(solo_dev, SOLO_IRQ_STAT, status);
return IRQ_HANDLED;
}

2
drivers/media/rc/ir-rc6-decoder.c
View file

@ -259,8 +259,8 @@ static int ir_rc6_decode(struct rc_dev *dev, struct ir_raw_event ev)
case 32:
if ((scancode & RC6_6A_LCC_MASK) == RC6_6A_MCE_CC) {
protocol = RC_TYPE_RC6_MCE;
scancode &= ~RC6_6A_MCE_TOGGLE_MASK;
toggle = !!(scancode & RC6_6A_MCE_TOGGLE_MASK);
scancode &= ~RC6_6A_MCE_TOGGLE_MASK;
} else {
protocol = RC_BIT_RC6_6A_32;
toggle = 0;

2
drivers/media/usb/s2255/s2255drv.c
View file

@ -632,7 +632,7 @@ static void s2255_fillbuff(struct s2255_vc *vc,
break;
case V4L2_PIX_FMT_JPEG:
case V4L2_PIX_FMT_MJPEG:
buf->vb.v4l2_buf.length = jpgsize;
vb2_set_plane_payload(&buf->vb, 0, jpgsize);
memcpy(vbuf, tmpbuf, jpgsize);
break;
case V4L2_PIX_FMT_YUV422P:

7
drivers/net/bonding/bond_netlink.c
View file

@ -225,7 +225,12 @@ static int bond_changelink(struct net_device *bond_dev,
bond_option_arp_ip_targets_clear(bond);
nla_for_each_nested(attr, data[IFLA_BOND_ARP_IP_TARGET], rem) {
__be32 target = nla_get_be32(attr);
__be32 target;
if (nla_len(attr) < sizeof(target))
return -EINVAL;
target = nla_get_be32(attr);
bond_opt_initval(&newval, (__force u64)target);
err = __bond_opt_set(bond, BOND_OPT_ARP_TARGETS,

8
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
View file

@ -2442,9 +2442,13 @@ static unsigned int from_fw_linkcaps(unsigned int type, unsigned int caps)
SUPPORTED_10000baseKR_Full | SUPPORTED_1000baseKX_Full |
SUPPORTED_10000baseKX4_Full;
else if (type == FW_PORT_TYPE_FIBER_XFI ||
type == FW_PORT_TYPE_FIBER_XAUI || type == FW_PORT_TYPE_SFP)
type == FW_PORT_TYPE_FIBER_XAUI || type == FW_PORT_TYPE_SFP) {
v |= SUPPORTED_FIBRE;
else if (type == FW_PORT_TYPE_BP40_BA)
if (caps & FW_PORT_CAP_SPEED_1G)
v |= SUPPORTED_1000baseT_Full;
if (caps & FW_PORT_CAP_SPEED_10G)
v |= SUPPORTED_10000baseT_Full;
} else if (type == FW_PORT_TYPE_BP40_BA)
v |= SUPPORTED_40000baseSR4_Full;
if (caps & FW_PORT_CAP_ANEG)

96
drivers/net/ethernet/renesas/sh_eth.c
View file

@ -917,21 +917,13 @@ static int sh_eth_reset(struct net_device *ndev)
return ret;
}
#if defined(CONFIG_CPU_SH4) || defined(CONFIG_ARCH_SHMOBILE)
static void sh_eth_set_receive_align(struct sk_buff *skb)
{
int reserve;
uintptr_t reserve = (uintptr_t)skb->data & (SH_ETH_RX_ALIGN - 1);
reserve = SH4_SKB_RX_ALIGN - ((u32)skb->data & (SH4_SKB_RX_ALIGN - 1));
if (reserve)
skb_reserve(skb, reserve);
skb_reserve(skb, SH_ETH_RX_ALIGN - reserve);
}
#else
static void sh_eth_set_receive_align(struct sk_buff *skb)
{
skb_reserve(skb, SH2_SH3_SKB_RX_ALIGN);
}
#endif
/* CPU <-> EDMAC endian convert */
@ -1119,6 +1111,7 @@ static void sh_eth_ring_format(struct net_device *ndev)
struct sh_eth_txdesc *txdesc = NULL;
int rx_ringsize = sizeof(*rxdesc) * mdp->num_rx_ring;
int tx_ringsize = sizeof(*txdesc) * mdp->num_tx_ring;
int skbuff_size = mdp->rx_buf_sz + SH_ETH_RX_ALIGN - 1;
mdp->cur_rx = 0;
mdp->cur_tx = 0;
@ -1131,21 +1124,21 @@ static void sh_eth_ring_format(struct net_device *ndev)
for (i = 0; i < mdp->num_rx_ring; i++) {
/* skb */
mdp->rx_skbuff[i] = NULL;
skb = netdev_alloc_skb(ndev, mdp->rx_buf_sz);
skb = netdev_alloc_skb(ndev, skbuff_size);
mdp->rx_skbuff[i] = skb;
if (skb == NULL)
break;
dma_map_single(&ndev->dev, skb->data, mdp->rx_buf_sz,
DMA_FROM_DEVICE);
sh_eth_set_receive_align(skb);
/* RX descriptor */
rxdesc = &mdp->rx_ring[i];
/* The size of the buffer is a multiple of 16 bytes. */
rxdesc->buffer_length = ALIGN(mdp->rx_buf_sz, 16);
dma_map_single(&ndev->dev, skb->data, rxdesc->buffer_length,
DMA_FROM_DEVICE);
rxdesc->addr = virt_to_phys(PTR_ALIGN(skb->data, 4));
rxdesc->status = cpu_to_edmac(mdp, RD_RACT | RD_RFP);
/* The size of the buffer is 16 byte boundary. */
rxdesc->buffer_length = ALIGN(mdp->rx_buf_sz, 16);
/* Rx descriptor address set */
if (i == 0) {
sh_eth_write(ndev, mdp->rx_desc_dma, RDLAR);
@ -1397,6 +1390,7 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota)
struct sk_buff *skb;
u16 pkt_len = 0;
u32 desc_status;
int skbuff_size = mdp->rx_buf_sz + SH_ETH_RX_ALIGN - 1;
rxdesc = &mdp->rx_ring[entry];
while (!(rxdesc->status & cpu_to_edmac(mdp, RD_RACT))) {
@ -1448,7 +1442,7 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota)
if (mdp->cd->rpadir)
skb_reserve(skb, NET_IP_ALIGN);
dma_sync_single_for_cpu(&ndev->dev, rxdesc->addr,
mdp->rx_buf_sz,
ALIGN(mdp->rx_buf_sz, 16),
DMA_FROM_DEVICE);
skb_put(skb, pkt_len);
skb->protocol = eth_type_trans(skb, ndev);
@ -1468,13 +1462,13 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota)
rxdesc->buffer_length = ALIGN(mdp->rx_buf_sz, 16);
if (mdp->rx_skbuff[entry] == NULL) {
skb = netdev_alloc_skb(ndev, mdp->rx_buf_sz);
skb = netdev_alloc_skb(ndev, skbuff_size);
mdp->rx_skbuff[entry] = skb;
if (skb == NULL)
break; /* Better luck next round. */
dma_map_single(&ndev->dev, skb->data, mdp->rx_buf_sz,
DMA_FROM_DEVICE);
sh_eth_set_receive_align(skb);
dma_map_single(&ndev->dev, skb->data,
rxdesc->buffer_length, DMA_FROM_DEVICE);
skb_checksum_none_assert(skb);
rxdesc->addr = virt_to_phys(PTR_ALIGN(skb->data, 4));
@ -2042,6 +2036,8 @@ static int sh_eth_open(struct net_device *ndev)
if (ret)
goto out_free_irq;
mdp->is_opened = 1;
return ret;
out_free_irq:
@ -2131,6 +2127,36 @@ static int sh_eth_start_xmit(struct sk_buff *skb, struct net_device *ndev)
return NETDEV_TX_OK;
}
static struct net_device_stats *sh_eth_get_stats(struct net_device *ndev)
{
struct sh_eth_private *mdp = netdev_priv(ndev);
if (sh_eth_is_rz_fast_ether(mdp))
return &ndev->stats;
if (!mdp->is_opened)
return &ndev->stats;
ndev->stats.tx_dropped += sh_eth_read(ndev, TROCR);
sh_eth_write(ndev, 0, TROCR); /* (write clear) */
ndev->stats.collisions += sh_eth_read(ndev, CDCR);
sh_eth_write(ndev, 0, CDCR); /* (write clear) */
ndev->stats.tx_carrier_errors += sh_eth_read(ndev, LCCR);
sh_eth_write(ndev, 0, LCCR); /* (write clear) */
if (sh_eth_is_gether(mdp)) {
ndev->stats.tx_carrier_errors += sh_eth_read(ndev, CERCR);
sh_eth_write(ndev, 0, CERCR); /* (write clear) */
ndev->stats.tx_carrier_errors += sh_eth_read(ndev, CEECR);
sh_eth_write(ndev, 0, CEECR); /* (write clear) */
} else {
ndev->stats.tx_carrier_errors += sh_eth_read(ndev, CNDCR);
sh_eth_write(ndev, 0, CNDCR); /* (write clear) */
}
return &ndev->stats;
}
/* device close function */
static int sh_eth_close(struct net_device *ndev)
{
@ -2145,6 +2171,7 @@ static int sh_eth_close(struct net_device *ndev)
sh_eth_write(ndev, 0, EDTRR);
sh_eth_write(ndev, 0, EDRRR);
sh_eth_get_stats(ndev);
/* PHY Disconnect */
if (mdp->phydev) {
phy_stop(mdp->phydev);
@ -2163,38 +2190,11 @@ static int sh_eth_close(struct net_device *ndev)
pm_runtime_put_sync(&mdp->pdev->dev);
mdp->is_opened = 0;
return 0;
}
static struct net_device_stats *sh_eth_get_stats(struct net_device *ndev)
{
struct sh_eth_private *mdp = netdev_priv(ndev);
if (sh_eth_is_rz_fast_ether(mdp))
return &ndev->stats;
pm_runtime_get_sync(&mdp->pdev->dev);
ndev->stats.tx_dropped += sh_eth_read(ndev, TROCR);
sh_eth_write(ndev, 0, TROCR); /* (write clear) */
ndev->stats.collisions += sh_eth_read(ndev, CDCR);
sh_eth_write(ndev, 0, CDCR); /* (write clear) */
ndev->stats.tx_carrier_errors += sh_eth_read(ndev, LCCR);
sh_eth_write(ndev, 0, LCCR); /* (write clear) */
if (sh_eth_is_gether(mdp)) {
ndev->stats.tx_carrier_errors += sh_eth_read(ndev, CERCR);
sh_eth_write(ndev, 0, CERCR); /* (write clear) */
ndev->stats.tx_carrier_errors += sh_eth_read(ndev, CEECR);
sh_eth_write(ndev, 0, CEECR); /* (write clear) */
} else {
ndev->stats.tx_carrier_errors += sh_eth_read(ndev, CNDCR);
sh_eth_write(ndev, 0, CNDCR); /* (write clear) */
}
pm_runtime_put_sync(&mdp->pdev->dev);
return &ndev->stats;
}
/* ioctl to device function */
static int sh_eth_do_ioctl(struct net_device *ndev, struct ifreq *rq, int cmd)
{

5
drivers/net/ethernet/renesas/sh_eth.h
View file

@ -162,9 +162,9 @@ enum {
/* Driver's parameters */
#if defined(CONFIG_CPU_SH4) || defined(CONFIG_ARCH_SHMOBILE)
#define SH4_SKB_RX_ALIGN 32
#define SH_ETH_RX_ALIGN 32
#else
#define SH2_SH3_SKB_RX_ALIGN 2
#define SH_ETH_RX_ALIGN 2
#endif
/* Register's bits
@ -522,6 +522,7 @@ struct sh_eth_private {
unsigned no_ether_link:1;
unsigned ether_link_active_low:1;
unsigned is_opened:1;
};
static inline void sh_eth_soft_swap(char *src, int len)

14
drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
View file

@ -265,13 +265,6 @@ static int stmmac_pltfr_probe(struct platform_device *pdev)
plat_dat = dev_get_platdata(&pdev->dev);
/* Set default value for multicast hash bins */
plat_dat->multicast_filter_bins = HASH_TABLE_SIZE;
/* Set default value for unicast filter entries */
plat_dat->unicast_filter_entries = 1;
if (pdev->dev.of_node) {
if (!plat_dat)
plat_dat = devm_kzalloc(&pdev->dev,
sizeof(struct plat_stmmacenet_data),
@ -281,6 +274,13 @@ static int stmmac_pltfr_probe(struct platform_device *pdev)
return -ENOMEM;
}
/* Set default value for multicast hash bins */
plat_dat->multicast_filter_bins = HASH_TABLE_SIZE;
/* Set default value for unicast filter entries */
plat_dat->unicast_filter_entries = 1;
if (pdev->dev.of_node) {
ret = stmmac_probe_config_dt(pdev, plat_dat, &mac);
if (ret) {
pr_err("%s: main dt probe failed", __func__);

5
drivers/net/xen-netfront.c
View file

@ -496,9 +496,6 @@ static void xennet_make_frags(struct sk_buff *skb, struct netfront_queue *queue,
len = skb_frag_size(frag);
offset = frag->page_offset;
/* Data must not cross a page boundary. */
BUG_ON(len + offset > PAGE_SIZE<<compound_order(page));
/* Skip unused frames from start of page */
page += offset >> PAGE_SHIFT;
offset &= ~PAGE_MASK;
@ -506,8 +503,6 @@ static void xennet_make_frags(struct sk_buff *skb, struct netfront_queue *queue,
while (len > 0) {
unsigned long bytes;
BUG_ON(offset >= PAGE_SIZE);
bytes = PAGE_SIZE - offset;
if (bytes > len)
bytes = len;

2
drivers/of/fdt.c
View file

@ -964,8 +964,6 @@ void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size)
int __init __weak early_init_dt_reserve_memory_arch(phys_addr_t base,
phys_addr_t size, bool nomap)
{
if (memblock_is_region_reserved(base, size))
return -EBUSY;
if (nomap)
return memblock_remove(base, size);
return memblock_reserve(base, size);

28
drivers/pci/host/pci-tegra.c
View file

@ -276,6 +276,7 @@ struct tegra_pcie {
struct resource all;
struct resource io;
struct resource pio;
struct resource mem;
struct resource prefetch;
struct resource busn;
@ -658,7 +659,6 @@ static int tegra_pcie_setup(int nr, struct pci_sys_data *sys)
{
struct tegra_pcie *pcie = sys_to_pcie(sys);
int err;
phys_addr_t io_start;
err = devm_request_resource(pcie->dev, &pcie->all, &pcie->mem);
if (err < 0)
@ -668,14 +668,12 @@ static int tegra_pcie_setup(int nr, struct pci_sys_data *sys)
if (err)
return err;
io_start = pci_pio_to_address(pcie->io.start);
pci_add_resource_offset(&sys->resources, &pcie->mem, sys->mem_offset);
pci_add_resource_offset(&sys->resources, &pcie->prefetch,
sys->mem_offset);
pci_add_resource(&sys->resources, &pcie->busn);
pci_ioremap_io(nr * SZ_64K, io_start);
pci_ioremap_io(pcie->pio.start, pcie->io.start);
return 1;
}
@ -786,7 +784,6 @@ static irqreturn_t tegra_pcie_isr(int irq, void *arg)
static void tegra_pcie_setup_translations(struct tegra_pcie *pcie)
{
u32 fpci_bar, size, axi_address;
phys_addr_t io_start = pci_pio_to_address(pcie->io.start);
/* Bar 0: type 1 extended configuration space */
fpci_bar = 0xfe100000;
@ -799,7 +796,7 @@ static void tegra_pcie_setup_translations(struct tegra_pcie *pcie)
/* Bar 1: downstream IO bar */
fpci_bar = 0xfdfc0000;
size = resource_size(&pcie->io);
axi_address = io_start;
axi_address = pcie->io.start;
afi_writel(pcie, axi_address, AFI_AXI_BAR1_START);
afi_writel(pcie, size >> 12, AFI_AXI_BAR1_SZ);
afi_writel(pcie, fpci_bar, AFI_FPCI_BAR1);
@ -1690,8 +1687,23 @@ static int tegra_pcie_parse_dt(struct tegra_pcie *pcie)
switch (res.flags & IORESOURCE_TYPE_BITS) {
case IORESOURCE_IO:
memcpy(&pcie->io, &res, sizeof(res));
pcie->io.name = np->full_name;
memcpy(&pcie->pio, &res, sizeof(res));
pcie->pio.name = np->full_name;
/*
* The Tegra PCIe host bridge uses this to program the
* mapping of the I/O space to the physical address,
* so we override the .start and .end fields here that
* of_pci_range_to_resource() converted to I/O space.
* We also set the IORESOURCE_MEM type to clarify that
* the resource is in the physical memory space.
*/
pcie->io.start = range.cpu_addr;
pcie->io.end = range.cpu_addr + range.size - 1;
pcie->io.flags = IORESOURCE_MEM;
pcie->io.name = "I/O";
memcpy(&res, &pcie->io, sizeof(res));
break;
case IORESOURCE_MEM:

2
drivers/watchdog/s3c2410_wdt.c
View file

@ -161,7 +161,7 @@ static const struct s3c2410_wdt_variant drv_data_exynos5420 = {
static const struct s3c2410_wdt_variant drv_data_exynos7 = {
.disable_reg = EXYNOS5_WDT_DISABLE_REG_OFFSET,
.mask_reset_reg = EXYNOS5_WDT_MASK_RESET_REG_OFFSET,
.mask_bit = 0,
.mask_bit = 23,
.rst_stat_reg = EXYNOS5_RST_STAT_REG_OFFSET,
.rst_stat_bit = 23, /* A57 WDTRESET */
.quirks = QUIRK_HAS_PMU_CONFIG | QUIRK_HAS_RST_STAT,

20
fs/fat/namei_vfat.c
View file

@ -736,7 +736,12 @@ static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry,
}
alias = d_find_alias(inode);
if (alias && !vfat_d_anon_disconn(alias)) {
/*
* Checking "alias->d_parent == dentry->d_parent" to make sure
* FS is not corrupted (especially double linked dir).
*/
if (alias && alias->d_parent == dentry->d_parent &&
!vfat_d_anon_disconn(alias)) {
/*
* This inode has non anonymous-DCACHE_DISCONNECTED
* dentry. This means, the user did ->lookup() by an
@ -755,12 +760,9 @@ static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry,
out:
mutex_unlock(&MSDOS_SB(sb)->s_lock);
dentry->d_time = dentry->d_parent->d_inode->i_version;
dentry = d_splice_alias(inode, dentry);
if (dentry)
dentry->d_time = dentry->d_parent->d_inode->i_version;
return dentry;
if (!inode)
dentry->d_time = dir->i_version;
return d_splice_alias(inode, dentry);
error:
mutex_unlock(&MSDOS_SB(sb)->s_lock);
return ERR_PTR(err);
@ -793,7 +795,6 @@ static int vfat_create(struct inode *dir, struct dentry *dentry, umode_t mode,
inode->i_mtime = inode->i_atime = inode->i_ctime = ts;
/* timestamp is already written, so mark_inode_dirty() is unneeded. */
dentry->d_time = dentry->d_parent->d_inode->i_version;
d_instantiate(dentry, inode);
out:
mutex_unlock(&MSDOS_SB(sb)->s_lock);
@ -824,6 +825,7 @@ static int vfat_rmdir(struct inode *dir, struct dentry *dentry)
clear_nlink(inode);
inode->i_mtime = inode->i_atime = CURRENT_TIME_SEC;
fat_detach(inode);
dentry->d_time = dir->i_version;
out:
mutex_unlock(&MSDOS_SB(sb)->s_lock);
@ -849,6 +851,7 @@ static int vfat_unlink(struct inode *dir, struct dentry *dentry)
clear_nlink(inode);
inode->i_mtime = inode->i_atime = CURRENT_TIME_SEC;
fat_detach(inode);
dentry->d_time = dir->i_version;
out:
mutex_unlock(&MSDOS_SB(sb)->s_lock);
@ -889,7 +892,6 @@ static int vfat_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
inode->i_mtime = inode->i_atime = inode->i_ctime = ts;
/* timestamp is already written, so mark_inode_dirty() is unneeded. */
dentry->d_time = dentry->d_parent->d_inode->i_version;
d_instantiate(dentry, inode);
mutex_unlock(&MSDOS_SB(sb)->s_lock);

3
fs/jbd2/journal.c
View file

@ -1853,14 +1853,13 @@ int jbd2_journal_set_features (journal_t *journal, unsigned long compat,
journal->j_chksum_driver = NULL;
return 0;
}
}
/* Precompute checksum seed for all metadata */
if (jbd2_journal_has_csum_v2or3(journal))
journal->j_csum_seed = jbd2_chksum(journal, ~0,
sb->s_uuid,
sizeof(sb->s_uuid));
}
}
/* If enabling v1 checksums, downgrade superblock */
if (COMPAT_FEATURE_ON(JBD2_FEATURE_COMPAT_CHECKSUM))

2
include/uapi/linux/Kbuild
View file

@ -427,7 +427,7 @@ header-y += virtio_net.h
header-y += virtio_pci.h
header-y += virtio_ring.h
header-y += virtio_rng.h
header=y += vm_sockets.h
header-y += vm_sockets.h
header-y += vt.h
header-y += wait.h
header-y += wanrouter.h

15
ipc/sem.c
View file

@ -507,13 +507,6 @@ static int newary(struct ipc_namespace *ns, struct ipc_params *params)
return retval;
}
id = ipc_addid(&sem_ids(ns), &sma->sem_perm, ns->sc_semmni);
if (id < 0) {
ipc_rcu_putref(sma, sem_rcu_free);
return id;
}
ns->used_sems += nsems;
sma->sem_base = (struct sem *) &sma[1];
for (i = 0; i < nsems; i++) {
@ -528,6 +521,14 @@ static int newary(struct ipc_namespace *ns, struct ipc_params *params)
INIT_LIST_HEAD(&sma->list_id);
sma->sem_nsems = nsems;
sma->sem_ctime = get_seconds();
id = ipc_addid(&sem_ids(ns), &sma->sem_perm, ns->sc_semmni);
if (id < 0) {
ipc_rcu_putref(sma, sem_rcu_free);
return id;
}
ns->used_sems += nsems;
sem_unlock(sma, -1);
rcu_read_unlock();

8
kernel/sched/core.c
View file

@ -2874,10 +2874,14 @@ asmlinkage __visible void __sched schedule_user(void)
* or we have been woken up remotely but the IPI has not yet arrived,
* we haven't yet exited the RCU idle mode. Do it here manually until
* we find a better solution.
*
* NB: There are buggy callers of this function. Ideally we
* should warn if prev_state != IN_USER, but that will trigger
* too frequently to make sense yet.
*/
user_exit();
enum ctx_state prev_state = exception_enter();
schedule();
user_enter();
exception_exit(prev_state);
}
#endif

1
lib/genalloc.c
View file

@ -598,6 +598,7 @@ struct gen_pool *devm_gen_pool_create(struct device *dev, int min_alloc_order,
return pool;
}
EXPORT_SYMBOL(devm_gen_pool_create);
/**
* dev_get_gen_pool - Obtain the gen_pool (if any) for a device

2
lib/show_mem.c
View file

@ -28,7 +28,7 @@ void show_mem(unsigned int filter)
continue;
total += zone->present_pages;
reserved = zone->present_pages - zone->managed_pages;
reserved += zone->present_pages - zone->managed_pages;
if (is_highmem_idx(zoneid))
highmem += zone->present_pages;

4
mm/frontswap.c
View file

@ -244,8 +244,10 @@ int __frontswap_store(struct page *page)
the (older) page from frontswap
*/
inc_frontswap_failed_stores();
if (dup)
if (dup) {
__frontswap_clear(sis, offset);
frontswap_ops->invalidate_page(type, offset);
}
}
if (frontswap_writethrough_enabled)
/* report failure so swap also writes to swap device */

4
mm/memory.c
View file

@ -816,6 +816,7 @@ copy_one_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm,
if (!pte_file(pte)) {
swp_entry_t entry = pte_to_swp_entry(pte);
if (likely(!non_swap_entry(entry))) {
if (swap_duplicate(entry) < 0)
return entry.val;
@ -827,9 +828,8 @@ copy_one_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm,
&src_mm->mmlist);
spin_unlock(&mmlist_lock);
}
if (likely(!non_swap_entry(entry)))
rss[MM_SWAPENTS]++;
else if (is_migration_entry(entry)) {
} else if (is_migration_entry(entry)) {
page = migration_entry_to_page(entry);
if (PageAnon(page))

10
mm/mmap.c
View file

@ -776,8 +776,11 @@ again: remove_next = 1 + (end > next->vm_end);
* shrinking vma had, to cover any anon pages imported.
*/
if (exporter && exporter->anon_vma && !importer->anon_vma) {
if (anon_vma_clone(importer, exporter))
return -ENOMEM;
int error;
error = anon_vma_clone(importer, exporter);
if (error)
return error;
importer->anon_vma = exporter->anon_vma;
}
}
@ -2469,7 +2472,8 @@ static int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
if (err)
goto out_free_vma;
if (anon_vma_clone(new, vma))
err = anon_vma_clone(new, vma);
if (err)
goto out_free_mpol;
if (new->vm_file)

6
mm/rmap.c
View file

@ -274,6 +274,7 @@ int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma)
{
struct anon_vma_chain *avc;
struct anon_vma *anon_vma;
int error;
/* Don't bother if the parent process has no anon_vma here. */
if (!pvma->anon_vma)
@ -283,8 +284,9 @@ int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma)
* First, attach the new VMA to the parent VMA's anon_vmas,
* so rmap can find non-COWed pages in child processes.
*/
if (anon_vma_clone(vma, pvma))
return -ENOMEM;
error = anon_vma_clone(vma, pvma);
if (error)
return error;
/* Then add our own anon_vma. */
anon_vma = anon_vma_alloc();

2
mm/slab.c
View file

@ -3076,7 +3076,7 @@ static void *____cache_alloc_node(struct kmem_cache *cachep, gfp_t flags,
void *obj;
int x;
VM_BUG_ON(nodeid > num_online_nodes());
VM_BUG_ON(nodeid < 0 || nodeid >= MAX_NUMNODES);
n = get_node(cachep, nodeid);
BUG_ON(!n);

10
mm/vmpressure.c
View file

@ -165,6 +165,7 @@ static void vmpressure_work_fn(struct work_struct *work)
unsigned long scanned;
unsigned long reclaimed;
spin_lock(&vmpr->sr_lock);
/*
* Several contexts might be calling vmpressure(), so it is
* possible that the work was rescheduled again before the old
@ -173,11 +174,12 @@ static void vmpressure_work_fn(struct work_struct *work)
* here. No need for any locks here since we don't care if
* vmpr->reclaimed is in sync.
*/
if (!vmpr->scanned)
return;
spin_lock(&vmpr->sr_lock);
scanned = vmpr->scanned;
if (!scanned) {
spin_unlock(&vmpr->sr_lock);
return;
}
reclaimed = vmpr->reclaimed;
vmpr->scanned = 0;
vmpr->reclaimed = 0;

1
net/core/rtnetlink.c
View file

@ -1498,6 +1498,7 @@ static int do_setlink(const struct sk_buff *skb,
goto errout;
}
if (!netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN)) {
put_net(net);
err = -EPERM;
goto errout;
}

1
security/keys/internal.h
View file

@ -117,6 +117,7 @@ struct keyring_search_context {
#define KEYRING_SEARCH_NO_UPDATE_TIME 0x0004 /* Don't update times */
#define KEYRING_SEARCH_NO_CHECK_PERM 0x0008 /* Don't check permissions */
#define KEYRING_SEARCH_DETECT_TOO_DEEP 0x0010 /* Give an error on excessive depth */
#define KEYRING_SEARCH_SKIP_EXPIRED 0x0020 /* Ignore expired keys (intention to replace) */
int (*iterator)(const void *object, void *iterator_data);

50
security/keys/keyctl.c
View file

@ -26,6 +26,8 @@
#include <asm/uaccess.h>
#include "internal.h"
#define KEY_MAX_DESC_SIZE 4096
static int key_get_type_from_user(char *type,
const char __user *_type,
unsigned len)
@ -78,7 +80,7 @@ SYSCALL_DEFINE5(add_key, const char __user *, _type,
description = NULL;
if (_description) {
description = strndup_user(_description, PAGE_SIZE);
description = strndup_user(_description, KEY_MAX_DESC_SIZE);
if (IS_ERR(description)) {
ret = PTR_ERR(description);
goto error;
@ -177,7 +179,7 @@ SYSCALL_DEFINE4(request_key, const char __user *, _type,
goto error;
/* pull the description into kernel space */
description = strndup_user(_description, PAGE_SIZE);
description = strndup_user(_description, KEY_MAX_DESC_SIZE);
if (IS_ERR(description)) {
ret = PTR_ERR(description);
goto error;
@ -287,7 +289,7 @@ long keyctl_join_session_keyring(const char __user *_name)
/* fetch the name from userspace */
name = NULL;
if (_name) {
name = strndup_user(_name, PAGE_SIZE);
name = strndup_user(_name, KEY_MAX_DESC_SIZE);
if (IS_ERR(name)) {
ret = PTR_ERR(name);
goto error;
@ -562,8 +564,9 @@ long keyctl_describe_key(key_serial_t keyid,
{
struct key *key, *instkey;
key_ref_t key_ref;
char *tmpbuf;
char *infobuf;
long ret;
int desclen, infolen;
key_ref = lookup_user_key(keyid, KEY_LOOKUP_PARTIAL, KEY_NEED_VIEW);
if (IS_ERR(key_ref)) {
@ -586,38 +589,31 @@ long keyctl_describe_key(key_serial_t keyid,
}
okay:
/* calculate how much description we're going to return */
ret = -ENOMEM;
tmpbuf = kmalloc(PAGE_SIZE, GFP_KERNEL);
if (!tmpbuf)
goto error2;
key = key_ref_to_ptr(key_ref);
desclen = strlen(key->description);
ret = snprintf(tmpbuf, PAGE_SIZE - 1,
"%s;%d;%d;%08x;%s",
/* calculate how much information we're going to return */
ret = -ENOMEM;
infobuf = kasprintf(GFP_KERNEL,
"%s;%d;%d;%08x;",
key->type->name,
from_kuid_munged(current_user_ns(), key->uid),
from_kgid_munged(current_user_ns(), key->gid),
key->perm,
key->description ?: "");
/* include a NUL char at the end of the data */
if (ret > PAGE_SIZE - 1)
ret = PAGE_SIZE - 1;
tmpbuf[ret] = 0;
ret++;
key->perm);
if (!infobuf)
goto error2;
infolen = strlen(infobuf);
ret = infolen + desclen + 1;
/* consider returning the data */
if (buffer && buflen > 0) {
if (buflen > ret)
buflen = ret;
if (copy_to_user(buffer, tmpbuf, buflen) != 0)
if (buffer && buflen >= ret) {
if (copy_to_user(buffer, infobuf, infolen) != 0 ||
copy_to_user(buffer + infolen, key->description,
desclen + 1) != 0)
ret = -EFAULT;
}
kfree(tmpbuf);
kfree(infobuf);
error2:
key_ref_put(key_ref);
error:
@ -649,7 +645,7 @@ long keyctl_keyring_search(key_serial_t ringid,
if (ret < 0)
goto error;
description = strndup_user(_description, PAGE_SIZE);
description = strndup_user(_description, KEY_MAX_DESC_SIZE);
if (IS_ERR(description)) {
ret = PTR_ERR(description);
goto error;

8
security/keys/keyring.c
View file

@ -546,6 +546,7 @@ static int keyring_search_iterator(const void *object, void *iterator_data)
}
if (key->expiry && ctx->now.tv_sec >= key->expiry) {
if (!(ctx->flags & KEYRING_SEARCH_SKIP_EXPIRED))
ctx->result = ERR_PTR(-EKEYEXPIRED);
kleave(" = %d [expire]", ctx->skipped_ret);
goto skipped;
@ -628,6 +629,10 @@ static bool search_nested_keyrings(struct key *keyring,
ctx->index_key.type->name,
ctx->index_key.description);
#define STATE_CHECKS (KEYRING_SEARCH_NO_STATE_CHECK | KEYRING_SEARCH_DO_STATE_CHECK)
BUG_ON((ctx->flags & STATE_CHECKS) == 0 ||
(ctx->flags & STATE_CHECKS) == STATE_CHECKS);
if (ctx->index_key.description)
ctx->index_key.desc_len = strlen(ctx->index_key.description);
@ -637,7 +642,6 @@ static bool search_nested_keyrings(struct key *keyring,
if (ctx->match_data.lookup_type == KEYRING_SEARCH_LOOKUP_ITERATE ||
keyring_compare_object(keyring, &ctx->index_key)) {
ctx->skipped_ret = 2;
ctx->flags |= KEYRING_SEARCH_DO_STATE_CHECK;
switch (ctx->iterator(keyring_key_to_ptr(keyring), ctx)) {
case 1:
goto found;
@ -649,8 +653,6 @@ static bool search_nested_keyrings(struct key *keyring,
}
ctx->skipped_ret = 0;
if (ctx->flags & KEYRING_SEARCH_NO_STATE_CHECK)
ctx->flags &= ~KEYRING_SEARCH_DO_STATE_CHECK;
/* Start processing a new keyring */
descend_to_keyring:

2
security/keys/request_key.c
View file

@ -516,6 +516,8 @@ struct key *request_key_and_link(struct key_type *type,
.match_data.cmp = key_default_cmp,
.match_data.raw_data = description,
.match_data.lookup_type = KEYRING_SEARCH_LOOKUP_DIRECT,
.flags = (KEYRING_SEARCH_DO_STATE_CHECK |
KEYRING_SEARCH_SKIP_EXPIRED),
};
struct key *key;
key_ref_t key_ref;

1
security/keys/request_key_auth.c
View file

@ -249,6 +249,7 @@ struct key *key_get_instantiation_authkey(key_serial_t target_id)
.match_data.cmp = key_default_cmp,
.match_data.raw_data = description,
.match_data.lookup_type = KEYRING_SEARCH_LOOKUP_DIRECT,
.flags = KEYRING_SEARCH_DO_STATE_CHECK,
};
struct key *authkey;
key_ref_t authkey_ref;

2
sound/pci/hda/patch_realtek.c
View file

@ -4790,6 +4790,8 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
SND_PCI_QUIRK(0x1028, 0x0638, "Dell Inspiron 5439", ALC290_FIXUP_MONO_SPEAKERS_HSJACK),
SND_PCI_QUIRK(0x1028, 0x064a, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x1028, 0x064b, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x1028, 0x06d9, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x1028, 0x06da, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x1028, 0x164a, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x1028, 0x164b, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x103c, 0x1586, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC2),