a9ecdc0fdc ("of/irq: Fix lookup to use 'interrupts-extended' property
first") updated the description to say that:
- Both 'interrupts' and 'interrupts-extended' may be present
- Software should prefer 'interrupts-extended'
- Software that doesn't comprehend 'interrupts-extended' may use
'interrupts'
But there is still a paragraph at the end that prohibits having both and
says 'interrupts' should be preferred.
Remove the contradictory text.
Fixes: a9ecdc0fdc ("of/irq: Fix lookup to use 'interrupts-extended' property first")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: stable@vger.kernel.org # v3.13+
Acked-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
When building with the Gold linker, the .bss and .brk areas of vmlinux
are shown as consecutive instead of having the same file offset. Allow
for either state, as long as things add up correctly.
Fixes: e6023367d7 ("x86, kaslr: Prevent .bss from overlaping initrd")
Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Junjie Mao <eternal.n08@gmail.com>
Link: http://lkml.kernel.org/r/20141118001604.GA25045@www.outflux.net
Cc: stable@vger.kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
When setting up permissions on kernel memory at boot, the end of the
PMD that was split from bss remained executable. It should be NX like
the rest. This performs a PMD alignment instead of a PAGE alignment to
get the correct span of memory.
Before:
---[ High Kernel Mapping ]---
...
0xffffffff8202d000-0xffffffff82200000 1868K RW GLB NX pte
0xffffffff82200000-0xffffffff82c00000 10M RW PSE GLB NX pmd
0xffffffff82c00000-0xffffffff82df5000 2004K RW GLB NX pte
0xffffffff82df5000-0xffffffff82e00000 44K RW GLB x pte
0xffffffff82e00000-0xffffffffc0000000 978M pmd
After:
---[ High Kernel Mapping ]---
...
0xffffffff8202d000-0xffffffff82200000 1868K RW GLB NX pte
0xffffffff82200000-0xffffffff82e00000 12M RW PSE GLB NX pmd
0xffffffff82e00000-0xffffffffc0000000 978M pmd
[ tglx: Changed it to roundup(_brk_end, PMD_SIZE) and added a comment.
We really should unmap the reminder along with the holes
caused by init,initdata etc. but thats a different issue ]
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Toshi Kani <toshi.kani@hp.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Wang Nan <wangnan0@huawei.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/20141114194737.GA3091@www.outflux.net
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
In the situation when we apply early microcode but do *not* apply late
microcode, we fail to update the BSP's microcode on resume because we
haven't initialized the uci->mc microcode pointer. So, in order to
alleviate that, we go and dig out the stashed microcode patch during
early boot. It is basically the same thing that is done on the APs early
during boot so do that too here.
Tested-by: alex.schnaidt@gmail.com
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=88001
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: <stable@vger.kernel.org> # v3.9
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/20141118094657.GA6635@pd.tnic
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Add sandisk to the list of vendors. This prefix should be used
also for companies absorbed by Sandisk, like M-Systems.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Rob Herring <robh@kernel.org>
The variable err was of the type u32. It was being compared with < 0, and being
an unsigned variable the comparison would have been always false.
Moreover, err was getting the return value from set_reset_mode() and
xcan_set_bittiming(), and both are returning int.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
these variable were only assigned some values, but then never
reused again.
so they are safe to be removed.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
It seems struct esd_usb2 dev is not deallocated on disconnect. The patch adds
the missing deallocation.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Matthias Fuchs <matthias.fuchs@esd.eu>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The CAN device drivers can use can_is_canfd_skb() to check if the frame to send
is on CAN FD mode or normal CAN mode.
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This patch fixes a typo in CAN's dev.c:
CIA -> CiA
which stands for CAN in Automation.
Signed-off-by: Roman Fietze <roman.fietze@telemotive.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The microphone mute led on the Latitude E5550 can't work. We need to
apply DELL_WMI_MIC_MUTE_LED quirk to this machine.
The machine uses alc293 codec and already applied the quirk
ALC293_FIXUP_DELL1_MIC_NO_PRESENCE through pin_fixup_tbl[].
Here we just let DELL_WMI_MIC_MUTE_LED be chained to
ALC269_FIXUP_HEADSET_MODE, then the machine will have these
quirks ALC293_FIXUP_DELL1_MIC_NO_PRESENCE-->
ALC269_FIXUP_HEADSET_MODE-->ALC255_FIXUP_DELL_WMI_MIC_MUTE_LED.
BugLink: https://bugs.launchpad.net/bugs/1381856
Reported-and-tested-by: Po-Hsu Lin <po-hsu.lin@canonical.com>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
We have one more Dell machine needs DELL_WMI_MIC_MUTE_LED quirk, but
the machine uses alc293 instead of alc255. So if
DELL_WMI_MIC_MUTE_LED still chain ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
the machine can't use this quirk.
To change this situation, let the DELL_WMI_MIC_MUTE_LED to be a
standalone quirk, and let other quirks chain it.
After this change, this quirk can be chained to any existing quirks,
and as a result, it is possible that this quirk is applied to
a non-Dell machine or a Dell machine without mic mute led on it, but
it is still safe since alc_fixup_dell_wmi() will return an error in
these situations.
And remove the quirk for machine with subsystem id 0x6010 and 0x601f,
these two machines will fall back to the quirk
ALC255_FIXUP_DELL1_MIC_NO_PRESENCE-->ALC255_FIXUP_HEADSET_MODE-->
ALC255_FIXUP_DELL_WMI_MIC_MUTE_LED through pin_fixup_tbl[].
BugLink: https://bugs.launchpad.net/bugs/1381856
Reported-and-tested-by: Po-Hsu Lin <po-hsu.lin@canonical.com>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The commit 543c043cba ("powerpc/fsl_msi: change the irq handler from
chained to normal") changes the msi cascade handler from chained to
normal. Since cascade handler must run in hard interrupt context, this
will cause kernel panic if we force threading of all the interrupt
handler via kernel command parameter 'threadirqs'. So mark the irq
handler IRQF_NO_THREAD explicitly.
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
As well as the usual driver fixes there's a few other things here:
One is a fix for a race in DPCM which is unfortuantely a rather large
diffstat, this is the result of growing usage of the mainline code and
hence more detailed testing so I'm relatively happy.
The other is a fix for non-DT machine driver matching following some of
the componentization work which is much more focused.
Both have had a while to cook in -next.
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Merge tag 'asoc-v3.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v3.18
As well as the usual driver fixes there's a few other things here:
One is a fix for a race in DPCM which is unfortuantely a rather large
diffstat, this is the result of growing usage of the mainline code and
hence more detailed testing so I'm relatively happy.
The other is a fix for non-DT machine driver matching following some of
the componentization work which is much more focused.
Both have had a while to cook in -next.
Return value of irq_of_parse_and_map() is unsigned int, with 0
indicating failure, so testing for negative result never works.
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Cc: stable@vger.kernel.org # v3.17
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Kill the submitted URB in brcmf_usb_dl_cmd if the request timed out. This
assures the URB is never submitted twice. It also prevents a possible
use-after-free of the URB transfer buffer if a timeout occurs.
Signed-off-by: Mathy Vanhoef <vanhoefm@gmail.com>
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The commit that went into 3.17:
ath9k: Summarize hw state per channel context
Group and set hw state (opmode, primary_sta, beacon conf) per
channel context instead of whole list of vifs. This would allow
each channel context to run in different mode (STA/AP).
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
broke multi-vif configuration due to not properly calculating
the bssid mask.
The test case that caught this was:
create wlan0 and sta0-4 (6 total), not sure how much that matters.
associate all 6 (works fine)
disconnect 5 of them, leaving sta0 up
Start trying to bring up the other 5 one at a time. It will
fail, with iw events looking like this (in these logs, several
sta are trying to come up, but symptom is the same with just one)
The patch causing the regression made quite a few changes, but
the part I think caused this particular problem was not
recalculating the bssid mask when adding and removing interfaces.
Re-adding those calls fixes my test case. Fix bad comment
as well.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
We should not free any buffers associated with writing out coefficients
to the DSP until all the async writes have completed. This patch updates
the out of memory path when allocating a new buffer to include a call to
regmap_async_complete.
Reported-by: JS Park <aitdark.park@samsung.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Specified in section 5.2.5.6.1 of the USB Audio Class 2.0 definition.
Solves the following error for C-Media 6632A (Asus Xonar U7):
[ 8219.676164] cannot get ctl value: req = 0x81, wValue = 0x0, wIndex = 0x1400, type = 3
Signed-off-by: Johan Rastén <johan@oljud.se>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Ebtables on the OUTPUT chain (NF_BR_LOCAL_OUT) would not work as expected
for both locally generated IGMP and MLD queries. The IP header specific
filter options are off by 14 Bytes for netfilter (actual output on
interfaces is fine).
NF_HOOK() expects the skb->data to point to the IP header, not the
ethernet one (while dev_queue_xmit() does not). Luckily there is an
br_dev_queue_push_xmit() helper function already - let's just use that.
Introduced by eb1d164143
("bridge: Add core IGMP snooping support")
Ebtables example:
$ ebtables -I OUTPUT -p IPv6 -o eth1 --logical-out br0 \
--log --log-level 6 --log-ip6 --log-prefix="~EBT: " -j DROP
before (broken):
~EBT: IN= OUT=eth1 MAC source = 02:04:64:a4:39:c2 \
MAC dest = 33:33:00:00:00:01 proto = 0x86dd IPv6 \
SRC=64a4:39c2:86dd:6000:0000:0020:0001:fe80 IPv6 \
DST=0000:0000:0000:0004:64ff:fea4:39c2:ff02, \
IPv6 priority=0x3, Next Header=2
after (working):
~EBT: IN= OUT=eth1 MAC source = 02:04:64:a4:39:c2 \
MAC dest = 33:33:00:00:00:01 proto = 0x86dd IPv6 \
SRC=fe80:0000:0000:0000:0004:64ff:fea4:39c2 IPv6 \
DST=ff02:0000:0000:0000:0000:0000:0000:0001, \
IPv6 priority=0x0, Next Header=0
Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Make sure the netlink group exists, otherwise you can trigger an out
of bound array memory access from the netlink_bind() path. This splat
can only be triggered only by superuser.
[ 180.203600] UBSan: Undefined behaviour in ../net/netfilter/nfnetlink.c:467:28
[ 180.204249] index 9 is out of range for type 'int [9]'
[ 180.204697] CPU: 0 PID: 1771 Comm: trinity-main Not tainted 3.18.0-rc4-mm1+ #122
[ 180.205365] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.7.5-0-ge51488c-20140602_164612-nilsson.home.kraxel.org
+04/01/2014
[ 180.206498] 0000000000000018 0000000000000000 0000000000000009 ffff88007bdf7da8
[ 180.207220] ffffffff82b0ef5f 0000000000000092 ffffffff845ae2e0 ffff88007bdf7db8
[ 180.207887] ffffffff8199e489 ffff88007bdf7e18 ffffffff8199ea22 0000003900000000
[ 180.208639] Call Trace:
[ 180.208857] dump_stack (lib/dump_stack.c:52)
[ 180.209370] ubsan_epilogue (lib/ubsan.c:174)
[ 180.209849] __ubsan_handle_out_of_bounds (lib/ubsan.c:400)
[ 180.210512] nfnetlink_bind (net/netfilter/nfnetlink.c:467)
[ 180.210986] netlink_bind (net/netlink/af_netlink.c:1483)
[ 180.211495] SYSC_bind (net/socket.c:1541)
Moreover, define the missing nf_tables and nf_acct multicast groups too.
Reported-by: Andrey Ryabinin <a.ryabinin@samsung.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
It's magic, but it seems to work.
This fixes a regression introduced in
commit 1bb9e632a0
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue Jul 8 10:02:43 2014 +0200
drm/i915: Only unbind vgacon, not other console drivers
My best guess is that the vga fbdev driver falls over if we rip out
parts of vgacon. Hooray.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=82439
Cc: stable@vger.kernel.org (v3.16+)
Reported-and-tested-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This reverts the regressing
commit 6547fbdbff
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Fri Dec 14 23:38:29 2012 +0100
drm/i915: Implement WaSetupGtModeTdRowDispatch
that causes GPU hangs immediately on boot.
Reported-by: Leo Wolf <jclw@ymail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79996
Cc: stable@vger.kernel.org (v3.8+)
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
[Jani: amended the commit message slightly.]
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
The datasheet for PL330 says that the data buffer value in the CRD
register is 10bits wide. However, the value stored is "minus one",
which the driver corrects for. Maximum value that the data buffer
depth can have is 1024 lines, which requires 11 bits for storage.
While making updates I found printing the peripheral ID as a hex
value to be more useful as the datasheet shows the values that way.
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
The MFIFO is shared by all channels so restrict each memcpy to it's fair
share. This is being over cautious, but without a global view of DMA
channel usage on a system it's not possible to come up with a more
optimum safe limit.
Signed-off-by: Jon Medhurst <tixy@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
The algorithm used for programming the DMA Controller doesn't take into
consideration the requirements of transfers that are not aligned to the
bus width. This failure may result in DMA transferring one too few MFIFO
entries (so too few bytes are copied) or the DMA trying to write one too
many MFIFO entries and hanging because this is never provided.
See "MFIFO Usage Overview" chapter in the the TRM for "CoreLink DMA
Controller DMA-330", Revision r1p1.
We work around these shortcomings by making sure we pick a burst size
and length which ensures no bursts straddle an MFIFO entry.
Signed-off-by: Jon Medhurst <tixy@linaro.org>
[squashed linker error "undefined reference to `__aeabi_uldivmod]
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Another small set of fixes:
- Some DT compatible typo fixes
- irq setup fix dealing with irq storms on orion
- i2c quirk generalization for mvebu
- A handful of smaller fixes for OMAP
- A couple of added file patterns for OMAP entries in MAINTAINERS
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Merge tag 'armsoc-for-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Another small set of fixes:
- some DT compatible typo fixes
- irq setup fix dealing with irq storms on orion
- i2c quirk generalization for mvebu
- a handful of smaller fixes for OMAP
- a couple of added file patterns for OMAP entries in MAINTAINERS"
* tag 'armsoc-for-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: at91/dt: Fix sama5d3x typos
pinctrl: dra: dt-bindings: Fix output pull up/down
MAINTAINERS: Update entry for omap related .dts files to cover new SoCs
MAINTAINERS: add more files under OMAP SUPPORT
ARM: dts: AM437x-SK-EVM: Fix DCDC3 voltage
ARM: dts: AM437x-GP-EVM: Fix DCDC3 voltage
ARM: dts: AM43x-EPOS-EVM: Fix DCDC3 voltage
ARM: dts: am335x-evm: Fix 5th NAND partition's name
ARM: orion: Fix for certain sequence of request_irq can cause irq storm
ARM: mvebu: armada xp: Generalize use of i2c quirk
Pull sparc fixes from David Miller:
1) Fix NULL oops in Schizo PCI controller error handler.
2) Fix race between xchg and other operations on 32-bit sparc, from
Andreas Larsson.
3) swab*() helpers need a dummy memory input operand to show data flow
on 64-bit sparc.
4) Fix RCU warnings due to missing irq_{enter,exit}() around
generic_smp_call_function*() calls.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Fix constraints on swab helpers.
sparc32: Implement xchg and atomic_xchg using ATOMIC_HASH locks
sparc64: Do irq_{enter,exit}() around generic_smp_call_function*().
sparc64: Fix crashes in schizo_pcierr_intr_other().
This fixes a regression introduced in 3.13.
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Merge tag 'md/3.18-fix' of git://neil.brown.name/md
Pull md bugfix from Neil Brown:
"One fix for md for 3.18.
This fixes a regression introduced in 3.13"
* tag 'md/3.18-fix' of git://neil.brown.name/md:
md: Always set RECOVERY_NEEDED when clearing RECOVERY_FROZEN
Some DT files had a typo with a missing "5" in sama5d3x first compatible string.
Signed-off-by: Peter Rosin <peda@axentia.se>
[nicolas.ferre@atmel.com: modify commit log]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
MAINTAINERS file to avoid missing PMIC and SoC related patches:
- Fix random hangs on am437x because of incorrect default
value for the DDR regulator
- Fix wrong partition name for NAND on am335x-evm
- Fix wrong pinctrl defines for dra7xx
- Update maintainers entries for PMICs and SoCs
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Merge tag 'omap-fixes-against-v3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Merge "omap fixes against v3.18-rc4" from Tony Lindgren:
Few omap fixes for hangs and wrong pinctrl defines, and update
MAINTAINERS file to avoid missing PMIC and SoC related patches:
- Fix random hangs on am437x because of incorrect default
value for the DDR regulator
- Fix wrong partition name for NAND on am335x-evm
- Fix wrong pinctrl defines for dra7xx
- Update maintainers entries for PMICs and SoCs
* tag 'omap-fixes-against-v3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
pinctrl: dra: dt-bindings: Fix output pull up/down
MAINTAINERS: Update entry for omap related .dts files to cover new SoCs
MAINTAINERS: add more files under OMAP SUPPORT
ARM: dts: AM437x-SK-EVM: Fix DCDC3 voltage
ARM: dts: AM437x-GP-EVM: Fix DCDC3 voltage
ARM: dts: AM43x-EPOS-EVM: Fix DCDC3 voltage
ARM: dts: am335x-evm: Fix 5th NAND partition's name
Signed-off-by: Olof Johansson <olof@lixom.net>
- Armada XP
- Generalize i2c quirk
- orion
- Fix irq storm caused by specific sequence of request_irq
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Merge tag 'mvebu-fixes-3.18' of git://git.infradead.org/linux-mvebu into fixes
Merge "mvebu fixes for v3.18" from Jason Cooper:
- Armada XP
- Generalize i2c quirk
- orion
- Fix irq storm caused by specific sequence of request_irq
* tag 'mvebu-fixes-3.18' of git://git.infradead.org/linux-mvebu:
ARM: orion: Fix for certain sequence of request_irq can cause irq storm
ARM: mvebu: armada xp: Generalize use of i2c quirk
md_check_recovery will skip any recovery and also clear
MD_RECOVERY_NEEDED if MD_RECOVERY_FROZEN is set.
So when we clear _FROZEN, we must set _NEEDED and ensure that
md_check_recovery gets run.
Otherwise we could miss out on something that is needed.
In particular, this can make it impossible to remove a
failed device from an array is the 'recovery-needed' processing
didn't happen.
Suitable for stable kernels since 3.13.
Cc: stable@vger.kernel.org (3.13+)
Reported-and-tested-by: Joe Lawrence <joe.lawrence@stratus.com>
Fixes: 30b8feb730
Signed-off-by: NeilBrown <neilb@suse.de>
It has been reported that generating an MLD listener report on
devices with large MTUs (e.g. 9000) and a high number of IPv6
addresses can trigger a skb_over_panic():
skbuff: skb_over_panic: text:ffffffff80612a5d len:3776 put:20
head:ffff88046d751000 data:ffff88046d751010 tail:0xed0 end:0xec0
dev:port1
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:100!
invalid opcode: 0000 [#1] SMP
Modules linked in: ixgbe(O)
CPU: 3 PID: 0 Comm: swapper/3 Tainted: G O 3.14.23+ #4
[...]
Call Trace:
<IRQ>
[<ffffffff80578226>] ? skb_put+0x3a/0x3b
[<ffffffff80612a5d>] ? add_grhead+0x45/0x8e
[<ffffffff80612e3a>] ? add_grec+0x394/0x3d4
[<ffffffff80613222>] ? mld_ifc_timer_expire+0x195/0x20d
[<ffffffff8061308d>] ? mld_dad_timer_expire+0x45/0x45
[<ffffffff80255b5d>] ? call_timer_fn.isra.29+0x12/0x68
[<ffffffff80255d16>] ? run_timer_softirq+0x163/0x182
[<ffffffff80250e6f>] ? __do_softirq+0xe0/0x21d
[<ffffffff8025112b>] ? irq_exit+0x4e/0xd3
[<ffffffff802214bb>] ? smp_apic_timer_interrupt+0x3b/0x46
[<ffffffff8063f10a>] ? apic_timer_interrupt+0x6a/0x70
mld_newpack() skb allocations are usually requested with dev->mtu
in size, since commit 72e09ad107 ("ipv6: avoid high order allocations")
we have changed the limit in order to be less likely to fail.
However, in MLD/IGMP code, we have some rather ugly AVAILABLE(skb)
macros, which determine if we may end up doing an skb_put() for
adding another record. To avoid possible fragmentation, we check
the skb's tailroom as skb->dev->mtu - skb->len, which is a wrong
assumption as the actual max allocation size can be much smaller.
The IGMP case doesn't have this issue as commit 57e1ab6ead
("igmp: refine skb allocations") stores the allocation size in
the cb[].
Set a reserved_tailroom to make it fit into the MTU and use
skb_availroom() helper instead. This also allows to get rid of
igmp_skb_size().
Reported-by: Wei Liu <lw1a2.jing@gmail.com>
Fixes: 72e09ad107 ("ipv6: avoid high order allocations")
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Cc: David L Stevens <david.stevens@oracle.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
We are reading the memory location, so we have to have a memory
constraint in there purely for the sake of showing the data flow
to the compiler.
Reported-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Added the USB VID/PID for the HP lt4112 LTE/HSPA+ Gobi 4G Modem (Huawei me906e)
Signed-off-by: Martin Hauke <mardnh@gmx.de>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pravin B Shelar says:
====================
Open vSwitch
Following fixes are accumulated in ovs-repo.
Three of them are related to protocol processing, one is
related to memory leak in case of error and one is to
fix race.
Patch "Validate IPv6 flow key and mask values" has conflicts
with net-next, Let me know if you want me to send the patch
for net-next.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Solves possible lockup issues that can be seen from firmware DCB agents calling
into the DCB app api.
DCB firmware event queues can be tied in with NAPI so that dcb events are
generated in softIRQ context. This can results in calls to dcb_*app()
functions which try to take the dcb_lock.
If the the event triggers while we also have the dcb_lock because lldpad or
some other agent happened to be issuing a get/set command we could see a cpu
lockup.
This code was not originally written with firmware agents in mind, hence
grabbing dcb_lock from softIRQ context was not considered.
Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In case of any failure ieee802154fake_probe() just calls unregister_netdev().
But it does not look safe to unregister netdevice before it was registered.
The patch implements straightforward resource deallocation in case of
failure in ieee802154fake_probe().
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is a set of six fixes and a MAINTAINER update. The fixes are two
multipath (one in Test Unit Ready handling for the path checkers and one in
the section of code that sends a start unit after failover; both of these were
perturbed by the scsi-mq update), a CD-ROM door locking fix that was likewise
introduced by scsi-mq and three driver fixes for a previous code update in
cxgb4i, megaraid_sas and bnx2fc.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of six fixes and a MAINTAINER update.
The fixes are two multipath (one in Test Unit Ready handling for the
path checkers and one in the section of code that sends a start unit
after failover; both of these were perturbed by the scsi-mq update), a
CD-ROM door locking fix that was likewise introduced by scsi-mq and
three driver fixes for a previous code update in cxgb4i, megaraid_sas
and bnx2fc"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
bnx2fc: fix tgt spinlock locking
megaraid_sas: fix bug in handling return value of pci_enable_msix_range()
cxgb4i: send abort_rpl correctly
cxgbi: add maintainer for cxgb3i/cxgb4i
scsi: TUR path is down after adapter gets reset with multipath
scsi: call device handler for failed TUR command
scsi: only re-lock door after EH on devices that were reset
Pablo Neira Ayuso says:
====================
Netfilter/IPVS fixes for net
The following patchset contains Netfilter updates for your net tree,
they are:
1) Fix missing initialization of the range structure (allocated in the
stack) in nft_masq_{ipv4, ipv6}_eval, from Daniel Borkmann.
2) Make sure the data we receive from userspace contains the req_version
structure, otherwise return an error incomplete on truncated input.
From Dan Carpenter.
3) Fix handling og skb->sk which may cause incorrect handling
of connections from a local process. Via Simon Horman, patch from
Calvin Owens.
4) Fix wrong netns in nft_compat when setting target and match params
structure.
5) Relax chain type validation in nft_compat that was recently included,
this broke the matches that need to be run from the route chain type.
Now iptables-test.py automated regression tests report success again
and we avoid the only possible problematic case, which is the use of
nat targets out of nat chain type.
6) Use match->table to validate the tablename, instead of the match->name.
Again patch for nft_compat.
7) Restore the synchronous release of objects from the commit and abort
path in nf_tables. This is causing two major problems: splats when using
nft_compat, given that matches and targets may sleep and call_rcu is
invoked from softirq context. Moreover Patrick reported possible event
notification reordering when rules refer to anonymous sets.
8) Fix race condition in between packets that are being confirmed by
conntrack and the ctnetlink flush operation. This happens since the
removal of the central spinlock. Thanks to Jesper D. Brouer to looking
into this.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The TX_IN_SEL offset for the CPSW_PORT/TX_IN_CTL register was
incorrect. This caused the Dual MAC mode to never get set when
it should. It also caused possible unintentional setting of a
bit in the CPSW_PORT/TX_BLKS_REM register.
The purpose of setting the Dual MAC mode for this register is to:
"... allow packets from both ethernet ports to be written into
the FIFO without one port starving the other port."
- AM335x ARM TRM
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bjorn Helgaas