This patch fixes a regresion introduced by commit 0998d063 (device-core: Ensure
drvdata = NULL when no driver is bound).
Suspend oopses in generic_ide_suspend() because dev_get_drvdata()
returns NULL (dev->p->driver_data == NULL) and this function is not
prepared for this.
Fix is based on Alan Stern's suggestion.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pablo Neira Ayuso discovered that avahi and
potentially NetworkManager accept spoofed Netlink messages because of a
kernel bug. The kernel passes all-zero SCM_CREDENTIALS ancillary data
to the receiver if the sender did not provide such data, instead of not
including any such data at all or including the correct data from the
peer (as it is the case with AF_UNIX).
This bug was introduced in commit 16e5726269
(af_unix: dont send SCM_CREDENTIALS by default)
This patch forces passing credentials for netlink, as
before the regression.
Another fix would be to not add SCM_CREDENTIALS in
netlink messages if not provided by the sender, but it
might break some programs.
With help from Florian Weimer & Petr Matousek
This issue is designated as CVE-2012-3520
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Petr Matousek <pmatouse@redhat.com>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Christian Casteyde reported a kmemcheck 32-bit read from uninitialized
memory in __ip_select_ident().
It turns out that __ip_make_skb() called ip_select_ident() before
properly initializing iph->daddr.
This is a bug uncovered by commit 1d861aa4b3 (inet: Minimize use of
cached route inetpeer.)
Addresses https://bugzilla.kernel.org/show_bug.cgi?id=46131
Reported-by: Christian Casteyde <casteyde.christian@free.fr>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since 0e73441992 ("ipv4: Use inet_csk_route_child_sock() in DCCP and
TCP."), inet_csk_route_child_sock() is called instead of
inet_csk_route_req().
However, after creating the child-sock in tcp/dccp_v4_syn_recv_sock(),
ireq->opt is set to NULL, before calling inet_csk_route_child_sock().
Thus, inside inet_csk_route_child_sock() opt is always NULL and the
SRR-options are not respected anymore.
Packets sent by the server won't have the correct destination-IP.
This patch fixes it by accessing newinet->inet_opt instead of ireq->opt
inside inet_csk_route_child_sock().
Reported-by: Luca Boccassi <luca.boccassi@gmail.com>
Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
This was originally for helping fabrics to determine overflow/underflow
status, and has been superceeded by SCF_OVERFLOW_BIT + SCF_UNDERFLOW_BIT.
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Pull audit-tree fixes from Miklos Szeredi:
"The audit subsystem maintainers (Al and Eric) are not responding to
repeated resends. Eric did ack them a while ago, but no response
since then. So I'm sending these directly to you."
* 'audit-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
audit: clean up refcounting in audit-tree
audit: fix refcounting in audit-tree
audit: don't free_chunk() after fsnotify_add_mark()
If the device is not started, we can't read its
SRAM and attempting to do so will cause issues.
Protect the debugfs read.
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
iwl_dbgfs_fh_reg_read() can cause crashes and/or
BUG_ON in slub because the ifdefs are wrong, the
code in iwl_dump_fh() should use DEBUGFS, not
DEBUG to protect the buffer writing code.
Also, while at it, clean up the arguments to the
function, some code and make it generally safer.
Cc: stable@vger.kernel.org
Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The result of one call to a function is tested, and then at the second call
to the same function, the previous result, and not the current result, is
tested again.
Also changed &bssid to bssid, at the suggestion of Stanislav Yakovlev.
The semantic match that finds the first problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression ret;
identifier f;
statement S1,S2;
@@
*ret = f(...);
if (\(ret != 0\|ret < 0\|ret == NULL\)) S1
... when any
*f(...);
if (\(ret != 0\|ret < 0\|ret == NULL\)) S2
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch reduces the per rate target power eeprom reads for
AR5K_EEPROM_MODE_11A from 10 to 8, as there are only 8 valid
power curve entries on the eeprom. The former 10 reads lead to
equal max power limits per rate and this causes an increasing
distortion for all rates above 24 MBit and leads to a needless
poor performance in 802.11a mode.
Signed-off-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Pull m68knommu arch fixes from Greg Ungerer:
"This contains 2 fixes. One fixes compilation of ColdFire clk code,
the other makes sure we use the generic atomic64 support on all m68k
targets."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68k: select CONFIG_GENERIC_ATOMIC64 for all m68k CPU types
m68knommu: select CONFIG_HAVE_CLK for ColdFire CPU types
- Fixed Nomadik errorpath
- Fixed documentation spelling errors
- Forward-declare struct device in a header file
- Remove some extraneous code lines when getting pinctrl states
- Correct the i.MX51 configure register number
- Fix the Nomadik keypad function group list
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Merge tag 'pinctrl-fixes-v3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
- Fixed Nomadik errorpath
- Fixed documentation spelling errors
- Forward-declare struct device in a header file
- Remove some extraneous code lines when getting pinctrl states
- Correct the i.MX51 configure register number
- Fix the Nomadik keypad function group list
* tag 'pinctrl-fixes-v3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl/nomadik: add kp_b_2 keyboard function group list
pinctrl: imx51: fix .conf_reg of MX51_PAD_SD2_CMD__CSPI_MOSI
trivial: pinctrl core: remove extraneous code lines
pinctrl: header: trivial: declare struct device
Documentation/pinctrl.txt: Fix some misspelled macros
pinctrl/nomadik: fix null in irqdomain errorpath
This update became slightly bigger than usual for rc3, but most of the
commits are small and trivial. A large chunk is found for HD-audio
ca0132 codec, which is mostly a clean up of the specific code, to make
SPDIF working properly, and also in the new ASoC Arizona driver.
One important fix is for usb-audio Oops fix since 3.5. We still see
some EHCI related bandwidth problem, but usb-audio should be more
stabilized now.
Other than that, a Kconfig fix is spread over files, and various
HD-audio and ASoC fixes as usual, in addition to Julia's error path
fixes.
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Merge tag 'sound-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"This update became slightly bigger than usual for rc3, but most of the
commits are small and trivial. A large chunk is found for HD-audio
ca0132 codec, which is mostly a clean up of the specific code, to make
SPDIF working properly, and also in the new ASoC Arizona driver.
One important fix is for usb-audio Oops fix since 3.5. We still see
some EHCI related bandwidth problem, but usb-audio should be more
stabilized now.
Other than that, a Kconfig fix is spread over files, and various
HD-audio and ASoC fixes as usual, in addition to Julia's error path
fixes."
* tag 'sound-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (42 commits)
ALSA: snd-als100: fix suspend/resume
ALSA: hda - Fix leftover codec->power_transition
ALSA: hda - don't create dysfunctional mixer controls for ca0132
ALSA: sound/ppc/snd_ps3.c: fix error return code
ALSA: sound/pci/rme9652/hdspm.c: fix error return code
ALSA: sound/pci/sis7019.c: fix error return code
ALSA: sound/pci/ctxfi/ctatc.c: fix error return code
ALSA: sound/atmel/ac97c.c: fix error return code
ALSA: sound/atmel/abdac.c: fix error return code
ALSA: fix pcm.h kernel-doc warning and notation
sound: oss/sb_audio: prevent divide by zero bug
ASoC: wm9712: Fix inverted capture volume
ASoC: wm9712: Fix microphone source selection
ASoC: wm5102: Remove DRC2
ALSA: hda - Don't send invalid volume knob command on IDT 92hd75bxx
ALSA: usb-audio: Fix scheduling-while-atomic bug in PCM capture stream
ALSA: lx6464es: Add a missing error check
ALSA: hda - Fix 'Beep Playback Switch' with no underlying mute switch
ASoC: jack: Always notify full jack status
ASoC: wm5110: Add missing input PGA routes
...
It seems commit 4a9d4b024a ("switch fput to task_work_add") re-
introduced the problem addressed in 944be0b224 ("close_files(): add
scheduling point")
If a server process with a lot of files (say 2 million tcp sockets) is
killed, we can spend a lot of time in task_work_run() and trigger a soft
lockup.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
So we've had a fair few reports of fbcon handover breakage between
efi/vesafb and i915 surface recently, so I dedicated a couple of
days to finding the problem.
Essentially the last thing we saw was the conflicting framebuffer
message and that was all.
So after much tracing with direct netconsole writes (printks
under console_lock not so useful), I think I found the race.
Thread A (driver load) Thread B (timer thread)
unbind_con_driver -> |
bind_con_driver -> |
vc->vc_sw->con_deinit -> |
fbcon_deinit -> |
console_lock() |
| |
| fbcon_flashcursor timer fires
| console_lock() <- blocked for A
|
|
fbcon_del_cursor_timer ->
del_timer_sync
(BOOM)
Of course because all of this is under the console lock,
we never see anything, also since we also just unbound the active
console guess what we never see anything.
Hopefully this fixes the problem for anyone seeing vesafb->kms
driver handoff.
Signed-off-by: David Airlie <airlied@redhat.com>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: stable@vger.kernel.org
Tested-by: Josh Boyer <jwboyer@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
. Add missing object files needed to use the python binding, cherry-picked
from perf/core, got a report it affects Linus's too, fix it.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fix from Arnaldo Carvalho de Melo:
* Add missing object files needed to use the python binding, cherry-picked
from perf/core, got a report it affects Linus's tree too, fix it.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This reverts commit d1c7871ddb.
ttm_bo_init() destroys the BO on failure. So this patch makes
the retry path work with freed memory. This ends up causing
kernel panics when this path is hit.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
On s390x-linux-gcc, __SIZE_TYPE__ expands to "long unsigned int" for both
32-bit s390 and 64-bit s390x, as
gcc-4.6.3-nolibc/s390x-linux/lib/gcc/s390x-linux/4.6.3/plugin/include/config/s390/linux.h
has
#define SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "long unsigned int")
To match this, __kernel_size_t is always set to "long unsigned int".
But while __kernel_ssize_t is "long" on 64-bit s390x, it is "int" on 32-bit
s390, causing compiler warnings like:
fs/quota/quota_tree.c:372:4: warning: format '%zd' expects argument of type 'signed size_t', but argument 4 has type 'ssize_t' [-Wformat]
To fix this, __kernel_ssize_t should be "long", irrespective of word size.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Commit "d51f17e UBIFS: simplify reply code a bit" introduces a bug with the
following symptoms:
UBIFS error (pid 1): replay_log_leb: first CS node at LEB 3:0 has wrong commit number 0 expected 1
The issue is that we start replaying the log from UBIFS_LOG_LNUM instead
of c->lhead_lnum. This patch fixes that.
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
This patch fixes a regression introduced by
"4994297 UBIFS: make ubifs_lpt_init clean-up in case of failure" which
I've hit while running the 'integck -p' test. When remount the file-system
from R/O mode to R/W mode and 'lpt_init_wr()' fails, we free _all_ LPT
resources by calling 'ubifs_lpt_free(c, 0)', even those needed for R/O
mode. This leads to subsequent crashes, e.g., if we try to unmount
the file-system.
Cc: stable@vger.kernel.org [v3.5+]
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
As Reported by Randy:
> drivers/built-in.o: In function `fops_open':
> saa7164-encoder.c:(.text+0x68ed6f): undefined reference to `video_devdata'
> drivers/built-in.o: In function `fill_queryctrl.clone.4':
> saa7164-encoder.c:(.text+0x68f657): undefined reference to `v4l2_ctrl_query_fill'
> saa7164-encoder.c:(.text+0x68f6a9): undefined reference to `v4l2_ctrl_query_fill'
> saa7164-encoder.c:(.text+0x68f6e0): undefined reference to `v4l2_ctrl_query_fill'
> saa7164-encoder.c:(.text+0x68f71a): undefined reference to `v4l2_ctrl_query_fill'
> saa7164-encoder.c:(.text+0x68f73a): undefined reference to `v4l2_ctrl_query_fill'
> drivers/built-in.o:saa7164-encoder.c:(.text+0x68f757): more undefined references to `v4l2_ctrl_query_fill' follow
> drivers/built-in.o: In function `saa7164_encoder_register':
> (.text+0x68fff7): undefined reference to `video_device_alloc'
> drivers/built-in.o: In function `saa7164_encoder_register':
> (.text+0x690073): undefined reference to `video_device_release'
> drivers/built-in.o: In function `saa7164_encoder_register':
> (.text+0x6900a1): undefined reference to `__video_register_device'
> drivers/built-in.o: In function `saa7164_encoder_unregister':
> (.text+0x690243): undefined reference to `video_unregister_device'
> drivers/built-in.o: In function `saa7164_encoder_unregister':
> (.text+0x690269): undefined reference to `video_device_release'
> drivers/built-in.o: In function `fops_open':
> saa7164-vbi.c:(.text+0x69125f): undefined reference to `video_devdata'
> drivers/built-in.o: In function `fill_queryctrl.clone.4':
> saa7164-vbi.c:(.text+0x6919b4): undefined reference to `v4l2_ctrl_query_fill'
> saa7164-vbi.c:(.text+0x6919ee): undefined reference to `v4l2_ctrl_query_fill'
> saa7164-vbi.c:(.text+0x691a23): undefined reference to `v4l2_ctrl_query_fill'
> saa7164-vbi.c:(.text+0x691a47): undefined reference to `v4l2_ctrl_query_fill'
> saa7164-vbi.c:(.text+0x691a6a): undefined reference to `v4l2_ctrl_query_fill'
> drivers/built-in.o:saa7164-vbi.c:(.text+0x691a87): more undefined references to `v4l2_ctrl_query_fill' follow
> drivers/built-in.o: In function `saa7164_vbi_register':
> (.text+0x69220e): undefined reference to `video_device_alloc'
> drivers/built-in.o: In function `saa7164_vbi_register':
> (.text+0x69228a): undefined reference to `video_device_release'
> drivers/built-in.o: In function `saa7164_vbi_register':
> (.text+0x6922bb): undefined reference to `__video_register_device'
> drivers/built-in.o: In function `saa7164_vbi_unregister':
> (.text+0x6923de): undefined reference to `video_unregister_device'
> drivers/built-in.o: In function `saa7164_vbi_unregister':
> (.text+0x6923f9): undefined reference to `video_device_release'
> drivers/built-in.o:(.rodata+0xb1054): undefined reference to `video_ioctl2'
> drivers/built-in.o:(.rodata+0xb17d4): undefined reference to `video_ioctl2'
That's due to the lack of an explicit Kconfig dependency for the V4L2 core.
Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
As reported by Randy:
> flexcop-pci.c:(.text+0x19af63): undefined reference to `flexcop_device_exit'
> flexcop-pci.c:(.text+0x19af77): undefined reference to `flexcop_device_kfree'
> flexcop-pci.c:(.text+0x19b10f): undefined reference to `flexcop_pass_dmx_packets'
> flexcop-pci.c:(.text+0x19b182): undefined reference to `flexcop_pass_dmx_data'
> flexcop-pci.c:(.text+0x19b1ae): undefined reference to `flexcop_pass_dmx_data'
> flexcop-pci.c:(.text+0x19b1f8): undefined reference to `flexcop_device_kmalloc'
> flexcop-pci.c:(.text+0x19b256): undefined reference to `flexcop_i2c_request'
> flexcop-pci.c:(.text+0x19b261): undefined reference to `flexcop_eeprom_check_mac_addr'
> flexcop-pci.c:(.text+0x19b2c6): undefined reference to `flexcop_device_initialize'
> flexcop-pci.c:(.text+0x19b332): undefined reference to `flexcop_sram_set_dest'
> flexcop-pci.c:(.text+0x19b348): undefined reference to `flexcop_sram_set_dest'
> flexcop-pci.c:(.text+0x19b3f8): undefined reference to `flexcop_device_exit'
> flexcop-pci.c:(.text+0x19b408): undefined reference to `flexcop_device_kfree'
> flexcop-pci.c:(.text+0x19b4a2): undefined reference to `flexcop_pid_feed_control'
> flexcop-pci.c:(.text+0x19b4d7): undefined reference to `flexcop_pid_feed_control'
>
> since it is possible to enable DVB_B2C2_FLEXCOP_PCI
> when CONFIG_I2C is not enabled, but then DVB_B2C2_FLEXCOP
> is not enabled because I2C is not enabled.
Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
A trivial fix so that vino can find the saa7191.h header.
[mchehab@redhat.com: Fix merge conflict]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch fixes below build error:
CC [M] drivers/gpio/gpio-bt8xx.o
drivers/gpio/gpio-bt8xx.c:53:40: fatal error: ../media/video/bt8xx/bt848.h: No such file or directory
compilation terminated.
make[2]: *** [drivers/gpio/gpio-bt8xx.o] Error 1
make[1]: *** [drivers/gpio] Error 2
make: *** [drivers] Error 2
drivers/media/video/bt8xx/bt848.h is moved to drivers/media/pci/bt8xx/bt848.h
by commit 68de959f77
"[media] bt8xx: move analog TV part to be together with DTV one".
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Instead of having 3 options to allow customizing the media
sub-drivers (tuners, I2C drivers, frontends), merge all of
them into just one.
That simplifies the life for users, as they can just keep
this untouched.
Life for developers is also simpler, as there's now just
one Kconfig item to remember, for the ancillary sub-drivers
providing supports for chips that could change from one
board design to another.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
- get rid of ridden V4L2_COMMON symbol
This symbol is not needed anymore; it can be folded with V4L2
one, simplifying the Kconfig a little bit;
- Comment why some Kconfig items are needed;
- Remove if test for MEDIA_CAMERA_SUPPORT, replacing it by
depends on.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Vivi is not that important to appear at the main menu, so move it
to its own submenu. Also, the mem2mem test device driver is
similar to vivi. So, put both at the same menu.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
That helps to better organize the soc_camera items.
While here, cleanup Makefiles, removing uneeded include dirs.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
make[4]: *** No rule to make target `drivers/media/platform/sh_mobile_csi2.c',
needed by `drivers/media/platform/sh_mobile_csi2.o'. Stop.
Reported-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch fixes:
https://bugzilla.redhat.com/show_bug.cgi?id=843640
If mmap_region()->uprobe_mmap() fails, unmap_and_free_vma path
does unmap_region() but does not remove the soon-to-be-freed vma
from rb tree. Actually there are more problems but this is how
William noticed this bug.
Perhaps we could do do_munmap() + return in this case, but in
fact it is simply wrong to abort if uprobe_mmap() fails. Until
at least we move the !UPROBE_COPY_INSN code from
install_breakpoint() to uprobe_register().
For example, uprobe_mmap()->install_breakpoint() can fail if the
probed insn is not supported (remember, uprobe_register()
succeeds if nobody mmaps inode/offset), mmap() should not fail
in this case.
dup_mmap()->uprobe_mmap() is wrong too by the same reason,
fork() can race with uprobe_register() and fail for no reason if
it wins the race and does install_breakpoint() first.
And, if nothing else, both mmap_region() and dup_mmap() return
success if uprobe_mmap() fails. Change them to ignore the error
code from uprobe_mmap().
Reported-and-tested-by: William Cohen <wcohen@redhat.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: <stable@vger.kernel.org> # v3.5
Cc: Anton Arapov <anton@redhat.com>
Cc: William Cohen <wcohen@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/20120819171042.GB26957@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
snd_card_als100_probe() does not set pcm field in struct snd_sb.
As a result, PCM is not suspended and applications don't know that they need
to resume the playback.
Tested with Labway A381-F20 card (ALS120).
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Pull PCI fixes from Bjorn Helgaas:
"Here are two patches from Rafael Wysocki.
One fixes an EHCI-related hibernation crash on ASUS boxes. We fixed a
similar suspend issue in v3.6-rc1, and this applies the same fix to
the hibernate path.
The other fixes D3/D3cold/D4 messages related to the D3cold support we
merged in v3.6-rc1."
(Removed redundant top non-fast-forward merge commit from pulled branch)
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: EHCI: Fix crash during hibernation on ASUS computers
PCI / PM: Fix D3/D3cold/D4 messages printed by acpi_pci_set_power_state()
The rpc server tries to ensure that there will be room to send a reply
before it receives a request.
It does this by tracking, in xpt_reserved, an upper bound on the total
size of the replies that is has already committed to for the socket.
Currently it is adding in the estimate for a new reply *before* it
checks whether there is space available. If it finds that there is not
space, it then subtracts the estimate back out.
This may lead the subsequent svc_xprt_enqueue to decide that there is
space after all.
The results is a svc_recv() that will repeatedly return -EAGAIN, causing
server threads to loop without doing any actual work.
Cc: stable@vger.kernel.org
Reported-by: Michael Tokarev <mjt@tls.msk.ru>
Tested-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
svc_tcp_sendto sets XPT_CLOSE if we fail to transmit the entire reply.
However, the XPT_CLOSE won't be acted on immediately. Meanwhile other
threads could send further replies before the socket is really shut
down. This can manifest as data corruption: for example, if a truncated
read reply is followed by another rpc reply, that second reply will look
to the client like further read data.
Symptoms were data corruption preceded by svc_tcp_sendto logging
something like
kernel: rpc-srv/tcp: nfsd: sent only 963696 when sending 1048708 bytes - shutting down socket
Cc: stable@vger.kernel.org
Reported-by: Malahal Naineni <malahal@us.ibm.com>
Tested-by: Malahal Naineni <malahal@us.ibm.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Examination of svc_tcp_clear_pages shows that it assumes sk_tcplen is
consistent with sk_pages[] (in particular, sk_pages[n] can't be NULL if
sk_tcplen would lead us to expect n pages of data).
svc_tcp_restore_pages zeroes out sk_pages[] while leaving sk_tcplen.
This is OK, since both functions are serialized by XPT_BUSY. However,
that means the inconsistency must be repaired before dropping XPT_BUSY.
Therefore we should be ensuring that svc_tcp_save_pages repairs the
problem before exiting svc_tcp_recv_record on error.
Symptoms were a BUG() in svc_tcp_clear_pages.
Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Commit d5497fc693 "nfsd4: move rq_flavor
into svc_cred" forgot to remove cl_flavor from the client, leaving two
places (cl_flavor and cl_cred.cr_flavor) for the flavor to be stored.
After that patch, the latter was the one that was updated, but the
former was the one that the callback used.
Symptoms were a long delay on utime(). This is because the utime()
generated a setattr which recalled a delegation, but the cb_recall was
ignored by the client because it had the wrong security flavor.
Cc: stable@vger.kernel.org
Tested-by: Jamie Heilman <jamie@audible.transient.net>
Reported-by: Jamie Heilman <jamie@audible.transient.net>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Use rcu_dereference_protected in order to prevent lockdep
complaint. Sequel of the patch 863555be
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Denis Efremov <yefremov.denis@gmail.com>
Acked-by: Mark D. Rustad <mark.d.rustad@intel.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Here TRANSPORT_IQN_LEN is 224, which is a multiple of 4.
Since vhost_tpgt is 2 bytes and abi_version is 4, the total size would
be 230. But gcc needs struct size be aligned to first field size, which
is 4 bytes, so it pads the structure by extra 2 bytes to the total of
232.
This padding is very undesirable in an ABI:
- it can not be initialized easily
- it can not be checked easily
- it can leak information between kernel and userspace
Simplest solution is probably just to make the padding
explicit.
(v2: Add check for zero'ed backend->reserved field for VHOST_SCSI_SET_ENDPOINT
and VHOST_SCSI_CLEAR_ENDPOINT ops as requested by MST)
Reported-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Here are 10 more USB patches for 3.6-rc3. They all fix reported
problems (build problems for one of them, and easily repeatable oopses
for the others.)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull more USB patches from Greg Kroah-Hartman:
"Here are 10 more USB patches for 3.6-rc3. They all fix reported
problems (build problems for one of them, and easily repeatable oopses
for the others.)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'usb-3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
gpu/mfd/usb: Fix USB randconfig problems
USB: CDC ACM: Fix NULL pointer dereference
USB: emi62: remove __devinit* from the struct usb_device_id table
USB: winbond: remove __devinit* from the struct usb_device_id table
USB: vt6656: remove __devinit* from the struct usb_device_id table
USB: rtl8187: remove __devinit* from the struct usb_device_id table
USB: p54usb: remove __devinit* from the struct usb_device_id table
USB: spca506: remove __devinit* from the struct usb_device_id table
USB: jl2005bcd: remove __devinit* from the struct usb_device_id table
USB: smsusb: remove __devinit* from the struct usb_device_id table
Here is one fix for the dmesg line corruption problem that the previous
set of patches caused.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull one more driver core fix from Greg Kroah-Hartman:
"Here is one fix for the dmesg line corruption problem that the
previous set of patches caused.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'driver-core-3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
dyndbg: fix for SOH in logging messages
Pull x86 platform driver update from Matthew Garrett:
"Some small updates for a few drivers, and some hardware enablement for
new Ideapads and the gmux hardware in the latest Macs.
This code won't run on older devices and has been well tested on new
ones, so low risk of regressions."
* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86:
ideapad: add Lenovo IdeaPad Z570 support (part 3)
ideapad: add Lenovo IdeaPad Z570 support (part 2)
ideapad: add Lenovo IdeaPad Z570 support (part 1)
classmate-laptop: always call input_sync() after input_report_switch()
thinkpad-acpi: recognize latest V-Series using DMI_BIOS_VENDOR
dell-laptop: Fixed typo in touchpad LED quirk
vga_switcheroo: Don't require handler init callback
vga_switcheroo: Remove assumptions about registration/unregistration ordering
apple-gmux: Add display mux support
apple-gmux: Fix kconfig dependencies
asus-wmi: record wlan status while controlled by userapp
apple_gmux: Fix ACPI video unregister
apple_gmux: Add support for newer hardware
gmux: Add generic write32 function
