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In __netpoll_rx(), it dereferences ->npinfo without rcu_dereference_bh(),
this patch fixes it by using the 'npinfo' passed from netpoll_rx()
where it is already dereferenced with rcu_dereference_bh().
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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With the previous patch applied, __netpoll_cleanup() is non-block now,
so we don't need to release the spin_lock before calling it.
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Like the previous patch, slave_disable_netpoll() and __netpoll_cleanup()
may be called with read_lock() held too, so we should make them
non-block, by moving the cleanup and kfree() to call_rcu_bh() callbacks.
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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slave_enable_netpoll() and __netpoll_setup() may be called
with read_lock() held, so should use GFP_ATOMIC to allocate
memory. Eric suggested to pass gfp flags to __netpoll_setup().
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 patches from Martin Schwidefsky:
"Included are bug fixes and a patch to enable system call filtering
with BPF."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/compat: fix mmap compat system calls
s390/compat: fix compat wrappers for process_vm system calls
s390: do not clobber personality flags in sys_32_personality()
s390/seccomp: add support for system call filtering using BPF
s390/sclp_sdias: Add missing break and "fall through"
s390/mm: remove MAX_PHYSADDR_BITS define
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Pull drm fixes from Dave Airlie:
"Radeon and intel fixes mostly, one fix to the mgag200 driver to not
hang on certain server variants."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (32 commits)
drm/radeon: fix typo in function header comment
drm/radeon/kms: implement timestamp userspace query (v2)
drm/radeon/kms: add MSAA texture support for r600-evergreen
drm/radeon/kms: reorder code in r600_check_texture_resource
drm/radeon: fence virtual address and free it once idle v4
drm/radeon: fix some missing parens in asic macros
drm/radeon: add some new SI pci ids
drm/radeon: fix ordering in pll picking on dce4+
drm/radeon: do not reenable crtc after moving vram start address
drm/radeon: fix bank tiling parameters on cayman
drm/radeon: fix bank tiling parameters on evergreen
drm/radeon: fix bank tiling parameters on SI
drm/radeon: properly handle crtc powergating
drm/radeon: properly handle SS overrides on TN (v2)
drm/radeon/dce4+: set a more reasonable cursor watermark
drm/radeon: fix handling for ddc type 5 on combios
drm/mgag200: fix G200ER pll picking algorithm
drm/edid: Fix potential memory leak in edid_load()
drm/udl: Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(.. [1]
drm/radeon/kms: allow "invalid" DB formats as a means to disable DB
...
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Commit 7212157267 ("GPIO: gpio-pxa: fix devicetree functions") added an
"xlate" function pointer to the irq_domain_ops, but this function is nor
declared or defined anywhere when CONFIG_OF is disabled, causing the
build error:
drivers/gpio/gpio-pxa.c:532:11: error: 'irq_domain_xlate_twocell' undeclared here (not in a function)
Extending the DT-only code section to cover the irq_domain_ops and the
pxa_gpio_dt_ids solves this problem and makes it clearer which code is
actually used without DT.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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into drm-fixes
Alex Deucher writes:
This is the current set of radeon fixes for 3.6. Nothing too major.
Highlights:
- various display fixes
- some SI fixes
- new SI pci ids
- major VM fix
- CS checker support for MSAA
I've tested on a number of cards across generations and noticed no problems.
* 'drm-fixes-3.6' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: fix typo in function header comment
drm/radeon/kms: implement timestamp userspace query (v2)
drm/radeon/kms: add MSAA texture support for r600-evergreen
drm/radeon/kms: reorder code in r600_check_texture_resource
drm/radeon: fence virtual address and free it once idle v4
drm/radeon: fix some missing parens in asic macros
drm/radeon: add some new SI pci ids
drm/radeon: fix ordering in pll picking on dce4+
drm/radeon: do not reenable crtc after moving vram start address
drm/radeon: fix bank tiling parameters on cayman
drm/radeon: fix bank tiling parameters on evergreen
drm/radeon: fix bank tiling parameters on SI
drm/radeon: properly handle crtc powergating
drm/radeon: properly handle SS overrides on TN (v2)
drm/radeon/dce4+: set a more reasonable cursor watermark
drm/radeon: fix handling for ddc type 5 on combios
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Signed-off-by: Dmitrii Cherkasov <DCherkasov@luxsoft.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Returns a snapshot of the GPU clock counter. Needed
for certain OpenGL extensions.
v2: agd5f
- address Jerome's comments
- add function documentation
Signed-off-by: Marek Olšák <maraeo@gmail.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Most of the checking seems to be in place already. As you can see,
log2(number of samples) resides in LAST_LEVEL.
This is required for MSAA support (namely for depth-stencil resolve and
blitting between MSAA resources).
Signed-off-by: Marek Olšák <maraeo@gmail.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Signed-off-by: Marek Olšák <maraeo@gmail.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Virtual address need to be fenced to know when we can safely remove it.
This patch also properly clear the pagetable. Previously it was
serouisly broken.
Kernel 3.5/3.4 need a similar patch but adapted for difference in mutex locking.
v2: For to update pagetable when unbinding bo (don't bailout if
bo_va->valid is true).
v3: Add kernel 3.5/3.4 comment.
v4: Fix compilation warnings.
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
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Better safe than sorry.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
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Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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No functional change, but re-order the cases so they
evaluate properly due to the way the DCE macros work.
Noticed by kallisti5 on IRC.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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It seems we can not update the crtc scanout address. After disabling
crtc, update to base address do not take effect after crtc being
reenable leading to at least frame being scanout from the old crtc
base address. Disabling crtc display request lead to same behavior.
So after changing the vram address if we don't keep crtc disabled
we will have the GPU trying to read some random system memory address
with some iommu this will broke the crtc engine and will lead to
broken display and iommu error message.
So to avoid this, disable crtc. For flicker less boot we will need
to avoid moving the vram start address.
This patch should also fix :
https://bugs.freedesktop.org/show_bug.cgi?id=42373
Cc: <stable@vger.kernel.org>
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
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Handle the 16 bank case.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Handle the 16 bank case.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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The sixteen bank case wasn't handled here, leading to GPU
crashes because of userspace miscalculation.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Need to make sure the crtc is gated on before modesetting.
Explicitly gate the crtc on in prepare() and set a flag
so that the dpms functions don't gate it off during
mode set.
Noticed by sylware on IRC.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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The IntegratedSystemInfo table changed versions
on TN. Update the SS override lookup to handle it.
v2: fix copy-paste typo.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Set a more reasonable default cursor watermark. The
recommended default value is 4. This should reduce
urgency requests to the MC form the display hw.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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When ddc type is 5, need to look up the i2c channel
in the i2c table.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
Pull leds fixes/revert from Bryan Wu.
* 'fixes-for-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
leds: renesas: fix error handling
Revert "leds: use led_set_brightness in led_trigger_event"
leds: lp8788: Fix updating scale configuration bits
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bfe4c041 "leds: convert Renesas TPU LED driver to devm_kzalloc() and
cleanup error exit path" introduced a possible case in which r_tpu_probe
calls iounmap on a wild pointer. This changes the one case that was
missed in the same way as the other error paths.
Without this patch, building kota2_defconfig results in:
drivers/leds/leds-renesas-tpu.c: In function 'r_tpu_probe':
drivers/leds/leds-renesas-tpu.c:246:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
drivers/leds/leds-renesas-tpu.c:308:17: warning: 'p' may be used uninitialized in this function [-Wuninitialized]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Magnus Damm <damm@opensource.se>
Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
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This reverts commit a0193cbee0809d65362a0767b2d50306b145b2f5.
The problem with the original commit was that it caused a warning with
the MMC trigger calling del_timer_sync from hard-irq context.
Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com>
Reported-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
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Pull networking changes from David Miller:
"Most importantly this should cure the ipv4-mapped ipv6 socket TCP
crashes some people were seeing, otherwise:
1) Fix e1000e autonegotiation handling regression, from Tushar Dave.
2) Fix TX data corruption race on e1000e down, also from Tushar Dave.
3) Fix bfin_sir IRDA driver build, from Sonic Zhang.
4) AF_PACKET mmap() tests a flag in the TX ring shared between
userspace and the kernel for an internal consistency check. It
really shouldn't do this to validate the kernel's own behavior
because the user can corrupt it to be any value at all. From
Daniel Borkmann.
5) Fix TCP metrics leak on netns dismantle, from Eric Dumazet.
6) Orphan the anonymous TCP socket from the SKB in
ip_send_unicast_reply() so that the rest of the stack needn't see
it. Otherwise we get selinux problems of all sorts, from Eric
Dumazet.
This is the best way to fix this since the socket is just a place
holder for sending packets in a context where we have no real
socket at all.
7) Fix TUN detach crashes, from Stanislav Kinsbursky.
8) dev_set_alias() leaks memory on krealloc() failure, from Alexey
Khoroshilov.
9) FIB trie must use call_rcu() not call_rcu_bh(), because this code
is not universally invoked from software interrupts. From Eric
Dumazet.
10) PPTP looks up ipv4 routes with the wrong network namespace, fix
from Gao Feng."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (33 commits)
bnx2x: Fix compiler warnings
af_packet: remove BUG statement in tpacket_destruct_skb
macvtap: rcu_dereference outside read-lock section
codel: refine one condition to avoid a nul rec_inv_sqrt
ixgbe: add missing braces
ipv4: fix ip_send_skb()
net: tcp: ipv6_mapped needs sk_rx_dst_set method
ipv4: tcp: unicast_sock should not land outside of TCP stack
bnx2x: Fix recovery flow cleanup during probe
bnx2x: fix unload previous driver flow when flr-capable
tun: don't zeroize sock->file on detach
igb: Fix register defines for all non-82575 hardware
e1000e: fix panic while dumping packets on Tx hang with IOMMU
igb: fix panic while dumping packets on Tx hang with IOMMU
tcp: must free metrics at net dismantle
net/stmmac: mark probe function as __devinit
lpc_eth: remove obsolete ifdefs
net/core: Fix potential memory leak in dev_set_alias()
cdc-phonet: Don't leak in usbpn_open
batman-adv: Fix mem leak in the batadv_tt_local_event() function
...
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git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull tcm_vhost level target fabric driver from Nicholas Bellinger:
"Here is the PULL request for the initial merge of tcm_vhost based on
RFC-v5 code with MST's ACK appended to the initial merge commit."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
tcm_vhost: Initial merge for vhost level target fabric driver
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Fix the following compiler warnings:
- drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c:2908:3: warning: comparison
of distinct pointer types lacks a cast [enabled by default]
- drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c:1709:7: warning: comparison
of distinct pointer types lacks a cast [enabled by default]
Signed-off-by: Joren Van Onder <joren.vanonder@gmail.com>
Acked-By: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Here's a quote of the comment about the BUG macro from asm-generic/bug.h:
Don't use BUG() or BUG_ON() unless there's really no way out; one
example might be detecting data structure corruption in the middle
of an operation that can't be backed out of. If the (sub)system
can somehow continue operating, perhaps with reduced functionality,
it's probably not BUG-worthy.
If you're tempted to BUG(), think again: is completely giving up
really the *only* solution? There are usually better options, where
users don't need to reboot ASAP and can mostly shut down cleanly.
In our case, the status flag of a ring buffer slot is managed from both sides,
the kernel space and the user space. This means that even though the kernel
side might work as expected, the user space screws up and changes this flag
right between the send(2) is triggered when the flag is changed to
TP_STATUS_SENDING and a given skb is destructed after some time. Then, this
will hit the BUG macro. As David suggested, the best solution is to simply
remove this statement since it cannot be used for kernel side internal
consistency checks. I've tested it and the system still behaves /stable/ in
this case, so in accordance with the above comment, we should rather remove it.
Signed-off-by: Daniel Borkmann <daniel.borkmann@tik.ee.ethz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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rcu_dereference occurs in update section. Replacement by
rcu_dereference_protected in order to prevent lockdep
complaint.
Found by Linux Driver Verification project (linuxtesting.org)
Signed-off-by: Denis Efremov <yefremov.denis@gmail.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull gpio fixes from Linus Walleij:
- Fix a resource leak in the SCH driver
- Fix the register address calculation in the MSIC driver
- Fix the PXA driver's devicetree functions
- Delete redundant shadow variable leftovers in the MXC driver
- Specify the GPIO base for the device tree probe in the MXC driver
- Add a modalias for the i.MX driver
- Fix off-by-one bug in the Samsung driver
- Fix erroneous errorpath in the Langwell driver
* tag 'gpio-fixes-v3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
drivers/gpio/gpio-langwell.c: fix error return code
gpio: samsung: Fix off-by-one bug in gpio addresses
ARM: dts: imx: add alias for gpio
gpio/mxc: specify gpio base for device tree probe
gpio/mxc: remove redundant shadow variables initialization
GPIO: gpio-pxa: fix devicetree functions
gpio: msic: Fix calculating register address in msic_gpio_to_oreg()
gpio-sch: Fix leak of resource
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull a security subsystem fix from James Morris
"This fixes an issue in the Yama LSM"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
Yama: higher restrictions should block PTRACE_TRACEME
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael J. Wysocki:
- Fix for two recent regressions in the generic PM domains framework.
- Revert of a commit that introduced a resume regression and is
conceptually incorrect in my opinion.
- Fix for a return value in pcc-cpufreq.c from Julia Lawall.
- RTC wakeup signaling fix from Neil Brown.
- Suppression of compiler warnings for CONFIG_PM_SLEEP unset in ACPI,
platform/x86 and TPM drivers.
* tag 'pm-for-3.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
tpm_tis / PM: Fix unused function warning for CONFIG_PM_SLEEP
platform / x86 / PM: Fix unused function warnings for CONFIG_PM_SLEEP
ACPI / PM: Fix unused function warnings for CONFIG_PM_SLEEP
Revert "NMI watchdog: fix for lockup detector breakage on resume"
PM: Make dev_pm_get_subsys_data() always return 0 on success
drivers/cpufreq/pcc-cpufreq.c: fix error return code
RTC: Avoid races between RTC alarm wakeup and suspend.
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm-soc bug fixes from Arnd Bergmann:
"These are a bunch of bug fixes that came in after the merge window and
one update for the MAINTAINERS file.
The largest part of the fixes are patches that address bugs found by
building all the ARM defconfig files. There are a lot more warnings
that we have patches for, but the others are either still under
discussion or are harmless and do not cause actual problems besides
making the build slightly noisy."
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (30 commits)
ARM: davinci: remove broken ntosd2_init_i2c
ARM: s3c24xx: enable CONFIG_BUG for tct_hammer
omap-rng: fix use of SIMPLE_DEV_PM_OPS
spi/s3c64xx: improve error handling
mtd/omap2: fix dmaengine_slave_config error handling
gpio: em: do not discard em_gio_irq_domain_cleanup
ARM: exynos: exynos_pm_add_dev_to_genpd may be unused
ARM: imx: gpmi-nand depends on mxs-dma
ARM: integrator: include <linux/export.h>
ARM: s3c24xx: use new PWM driver
ARM: sa1100: include linux/io.h in hackkit leds code
Input: eeti_ts: pass gpio value instead of IRQ
ARM: pxa: remove irq_to_gpio from ezx-pcap driver
ARM: tegra: more regulator fixes for Harmony
usb/ohci-omap: remove unused variable
mfd/asic3: fix asic3_mfd_probe return value
ARM: kirkwood: fix typo in Makefile.boot
i.MX27: Fix emma-prp and csi clocks.
ARM: integrator: use clk_prepare_enable() for timer
MAINTAINERS: update entry for Linus Walleij
...
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git://git.linaro.org/people/mszyprowski/linux-dma-mapping
Pull three dma-mapping fixes from Marek Szyprowski.
* 'fixes-for-linus-for-3.6-rc2' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
ARM: dma-mapping: fix incorrect freeing of atomic allocations
ARM: dma-mapping: fix atomic allocation alignment
ARM: mm: fix MMU mapping of CMA regions
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs merge fix from Chris Mason:
"This fixes a merge error in rc1. The calls to mnt_want_write should
have been removed."
* 'for-linus-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: remove mnt_want_write call in btrfs_mksubvol
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While tracking down a weird buffer overflow issue in a program that
looked to be sane, I started double checking the length returned by
syslog(SYSLOG_ACTION_READ_ALL, ...) to make sure it wasn't overflowing
the buffer.
Sure enough, it was. I saw this in strace:
11339 syslog(SYSLOG_ACTION_READ_ALL, "<5>[244017.708129] REISERFS (dev"..., 8192) = 8279
It turns out that the loops that calculate how much space the entries
will take when they're copied don't include the newlines and prefixes
that will be included in the final output since prev flags is passed as
zero.
This patch properly accounts for it and fixes the overflow.
CC: stable@kernel.org
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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One condition before codel_Newton_step() was not good if
we never left the dropping state for a flow. As a result
rec_inv_sqrt was 0, instead of the ~0 initial value.
codel control law was then set to a very aggressive mode, dropping
many packets before reaching 'target' and recovering from this problem.
To keep codel_vars_init() as efficient as possible, refine
the condition to make sure rec_inv_sqrt initial value is correct
Many thanks to Anton Mich for discovering the issue and suggesting
a fix.
Reported-by: Anton Mich <lp2s1h@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds missing braces around the 10gig link check to include the check for KR support.
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Reported-by: Sascha Wildner <saw@online.de>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:
====================
Here is a handful of fixes intended for 3.6.
Daniel Drake offers a cfg80211 fix to consume pending events before
taking a wireless device down. This prevents a resource leak.
Stanislaw Gruszka gives us a fix for a NULL pointer dereference in
rt61pci.
Johannes Berg provides an iwlwifi patch to disable "greenfield" mode.
Use of that mode was causing a rate scaling problem in for iwlwifi.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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ip_send_skb() can send orphaned skb, so we must pass the net pointer to
avoid possible NULL dereference in error path.
Bug added by commit 3a7c384ffd57 (ipv4: tcp: unicast_sock should not
land outside of TCP stack)
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
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According to a compiler warning, the tpm_tis_resume() function is not
used for CONFIG_PM_SLEEP unset, so add a #ifdef to prevent it from
being built in that case.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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According to compiler warnings, quite some suspend/resume functions
in platform x86 drivers are not used for CONFIG_PM_SLEEP unset, so
add #ifdefs to prevent them from being built in that case.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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According to compiler warnings, several suspend/resume functions
in ACPI drivers are not used for CONFIG_PM_SLEEP unset, so add
#ifdefs to prevent them from being built in that case.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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ntosd2_init_i2c walks the ntosd2_i2c_info array, which it expects to
be populated with at least one member. gcc correctly warns about
the out-of-bounds access here.
Since this can not possibly work, it's better to disable i2c
support entirely on this board.
Without this patch, building davinci_all_defconfig results in:
arch/arm/mach-davinci/board-neuros-osd2.c: In function 'davinci_ntosd2_init':
arch/arm/mach-davinci/board-neuros-osd2.c:187:20: warning: array subscript is above array bounds [-Warray-bounds]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Cc: Kevin Hilman <khilman@ti.com>
Cc: Andrey Porodko <panda@chelcom.ru>
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Disabling CONFIG_BUG creates an insane amount of build warnings, which
makes it useless to check for building defconfigs to see if new
warnings show up.
Without this patch, building tct_hammer_defconfig results in:
net/packet/af_packet.c: In function 'tpacket_rcv':
net/packet/af_packet.c:1889:30: warning: 'hdrlen' may be used uninitialized in this function [-Wuninitialized]
net/core/ethtool.c: In function 'ethtool_get_feature_mask':
net/core/ethtool.c:213:1: warning: control reaches end of non-void function [-Wreturn-type]
block/cfq-iosched.c: In function 'cfq_async_queue_prio':
block/cfq-iosched.c:2914:1: warning: control reaches end of non-void function [-Wreturn-type]
mm/bootmem.c: In function 'mark_bootmem':
mm/bootmem.c:352:1: warning: control reaches end of non-void function [-Wreturn-type]
net/core/dev.c: In function 'skb_warn_bad_offload':
net/core/dev.c:1904:33: warning: unused variable 'null_features' [-Wunused-variable]
drivers/mtd/chips/cfi_probe.c: In function 'cfi_chip_setup':
include/linux/mtd/cfi.h:489:3: warning: 'r.x[0]' may be used uninitialized in this function [-Wuninitialized]
include/linux/mtd/map.h:394:11: note: 'r.x[0]' was declared here
include/linux/mtd/cfi.h:489:3: warning: 'r.x[0]' may be used uninitialized in this function [-Wuninitialized]
(and many more)
The size of vmlinux increases by 1.78% because of this:
size obj-arm/vmlinux.nobug
text data bss dec hex filename
2108474 116916 55352 2280742 22cd26 obj-arm/vmlinux
size obj-arm/vmlinux.bug
text data bss dec hex filename
2150804 116916 53696 2321416 236c08 obj-arm/vmlinux
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
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The original code was misported from the X driver,
a) an int went to unsigned int, breaking the downward counting testm code
b) the port did the vco/computed clock bits completely wrong.
This fixes an infinite loop on modprobe on some Dell servers with the G200ER
chipset variant.
Found in internal testing.
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
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