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Pull x86 platform driver revert from Matthew Garrett:
"This clearly shouldn't have been merged. No excuse on my part"
* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86:
Revert "platform/x86/toshiba-apci.c possible bad if test?"
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Pull KVM fixes from Paolo Bonzini:
"Reverting a 3.16 patch, fixing two bugs in device assignment (one has
a CVE), and fixing some problems introduced during the merge window
(the CMA bug came in via Andrew, the x86 ones via yours truly)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
virt/kvm/assigned-dev.c: Set 'dev->irq_source_id' to '-1' after free it
Revert "KVM: x86: Increase the number of fixed MTRR regs to 10"
KVM: x86: do not check CS.DPL against RPL during task switch
KVM: x86: Avoid emulating instructions on #UD mistakenly
PC, KVM, CMA: Fix regression caused by wrong get_order() use
kvm: iommu: fix the third parameter of kvm_iommu_put_pages (CVE-2014-3601)
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"These are the two bug fixes I mentioned in the final merge window
pull. One is a reversed logic check in the device busy tests which
can cause a nasty hang and another crash seen in the new SCSI pool
support if the use count ever goes to zero"
[ The device busy test already got merged from a patch earlier, so is
now duplicated. ]
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
[SCSI] save command pool address of Scsi_Host
[SCSI] fix qemu boot hang problem
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Recently the LE passive scanning and auto-connections feature was
introduced. It uses the hci_connect_le() API which returns a hci_conn
along with a reference count to that object. All previous users would
tie this returned reference to some existing object, such as an L2CAP
channel, and there'd be no leaked references this way. For
auto-connections however the reference was returned but not stored
anywhere, leaving established connections with one higher reference
count than they should have.
Instead of playing special tricks with hci_conn_hold/drop this patch
associates the returned reference from hci_connect_le() with the object
that in practice does own this reference, i.e. the hci_conn_params
struct that caused us to initiate a connection in the first place. Once
the connection is established or fails to establish this reference is
removed appropriately.
One extra thing needed is to call hci_pend_le_actions_clear() before
calling hci_conn_hash_flush() so that the reference is cleared before
the hci_conn objects are fully removed.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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The variable $(PWD) is useless, and it may break the compilation.
For example, it breaks the kernel compilation when it's done with
buildroot :
/home/trem/Codes/armadeus/armadeus/buildroot/output/host/usr/bin/ccache
/home/trem/Codes/armadeus/armadeus/buildroot/output/host/usr/bin/arm-buildroot-linux-uclibcgnueabi-gcc
-Wp,-MD,drivers/usb/gadget/legacy/.hid.o.d -nostdinc -isystem
/home/trem/Codes/armadeus/armadeus/buildroot/output/host/usr/lib/gcc/arm-buildroot-linux-uclibcgnueabi/4.7.3/include
-I./arch/arm/include -Iarch/arm/include/generated -Iinclude
-I./arch/arm/include/uapi -Iarch/arm/include/generated/uapi
-I./include/uapi -Iinclude/generated/uapi -include
./include/linux/kconfig.h -D__KERNEL__ -mlittle-endian -Wall -Wundef
-Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common
-Werror-implicit-function-declaration -Wno-format-security
-fno-dwarf2-cfi-asm -mabi=aapcs-linux -mno-thumb-interwork -mfpu=vfp
-funwind-tables -marm -D__LINUX_ARM_ARCH__=5 -march=armv5te
-mtune=arm9tdmi -msoft-float -Uarm -fno-delete-null-pointer-checks -O2
--param=allow-store-data-races=0 -Wframe-larger-than=1024
-fno-stack-protector -Wno-unused-but-set-variable -fomit-frame-pointer
-fno-var-tracking-assignments -g -Wdeclaration-after-statement
-Wno-pointer-sign -fno-strict-overflow -fconserve-stack
-Werror=implicit-int -Werror=strict-prototypes -DCC_HAVE_ASM_GOTO
-I/home/trem/Codes/armadeus/armadeus/buildroot/drivers/usb/gadget/
-I/home/trem/Codes/armadeus/armadeus/buildroot/drivers/usb/gadget/udc/
-I/home/trem/Codes/armadeus/armadeus/buildroot/drivers/usb/gadget/function/
-DMODULE -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(hid)"
-D"KBUILD_MODNAME=KBUILD_STR(g_hid)" -c -o
drivers/usb/gadget/legacy/hid.o drivers/usb/gadget/legacy/hid.c
drivers/usb/gadget/epautoconf.c:23:26: erreur fatale: gadget_chips.h :
Aucun fichier ou dossier de ce type
This compilation line include :
..../buildroot/driver/usb/gadget
but the real path is :
..../buildroot/output/build/linux-3.17-rc1/driver/usb/gadget
Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Signed-off-by: Addy Ke <addy.ke@rock-chips.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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The SPI host controller is the same as used in Baytrail, only the ACPI ID
is different so add this new ID to the list.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
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This reverts commit bdc3ae7221213963f438faeaa69c8b4a2195f491.
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
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This patch is to enable the USB gadget device for Intel Quark X1000
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@intel.com>
Signed-off-by: Bing Niu <bing.niu@intel.com>
Signed-off-by: Alvin (Weike) Chen <alvin.chen@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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The config symbol 'CONFIG_DEBUG_FS' should be protected by a 'ifdef' instead
of a plain 'if'.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Signed-off-by: Hans Wennborg <hans@hanshq.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Signed-off-by: Hans Wennborg <hans@hanshq.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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commit 257462dbf3ed ("pwm-backlight: switch to gpiod interface")
introduced a regression leading to acquiring a bogus GPIO-0 when
configured from DT without an 'enable-gpios' property.
The driver will happily accept the 0 initialized 'enable_gpio' member
of the struct platform_pwm_backlight_data as valid gpio number, and
request this GPIO as enable pin. In case of multiple driver instances,
the second will fail to register with the error message:
pwm-backlight backlight1.23: failed to request GPIO#0: -16
Fix this by setting enable_gpio in the pdata struct to -EINVAL.
Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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When running a 32-bit userspace on a 64-bit kernel (eg. i386
application on x86_64 kernel or 32-bit arm userspace on arm64
kernel) some of the perf ioctls must be treated with special
care, as they have a pointer size encoded in the command.
For example, PERF_EVENT_IOC_ID in 32-bit world will be encoded
as 0x80042407, but 64-bit kernel will expect 0x80082407. In
result the ioctl will fail returning -ENOTTY.
This patch solves the problem by adding code fixing up the
size as compat_ioctl file operation.
Reported-by: Drew Richardson <drew.richardson@arm.com>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1402671812-9078-1-git-send-email-pawel.moll@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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kbd_res is used only when CONFIG_PCI is defined; condition its declaration as
well. This fixes the following compilation warning:
drivers/input/serio/i8042-sparcio.h:20:25: warning: ‘kbd_res’ defined but not used [-Wunused-variable]
Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Fix a build failure introduced with commit 30670539b86
(spi: au1550: Fix bug in deallocation of memory)
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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The journal blocks of external journal device should not
be counted as overhead.
Signed-off-by: Chin-Tsung Cheng <chintzung@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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Increase max i2c bus frequency beyond the default for faster
data transfers. According to the manual, these faster speeds are
only available when the board is wired up the right way. In this case,
the vendor kernel has run at this speed for a long time.
sda-delay is needed for talking to RTC on PMIC, otherwise the i2c
controller never sees an ACK. Strangely the other PMIC i2c slave (the
main one) works fine even without this delay. I Chose value 100 to
match the vendor kernel.
Signed-off-by: Daniel Drake <drake@endlessm.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Tested-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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The ODROID kernel shows that the PMIC interrupt line is hooked up
to pin GPX3-2.
This is needed for the max77686-irq driver to create the PMIC IRQ
domain, which is needed by max77686-rtc.
Signed-off-by: Daniel Drake <drake@endlessm.com>
Tested-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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For some reason, the audit patches didn't make it out of -next this
merge window, so revert our temporary hack and let the audit guys deal
with fixing up -next.
This reverts commit 2a8f45b040bcb9b2ad2845f061499d1b6f41cc7b.
Signed-off-by: Will Deacon <will.deacon@arm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes
Merge "ARM: imx: fixes for 3.17" from Shawn Guo:
The i.MX fixes for 3.17:
- A correction on imx6dl gpu axi clock setting
- Fix a compilation error which comes after ARMv6K SMP build is allowed
- Fix a typo with pinctrl_esdhc1 in vf610-twr dts
- Correct i.MX6SX pad setting for UART in dts
- Fix i.MX53 VPU clock settings in dts
- Fix a suspend/resume failure seen on Cubox-i board, which is caused
by TLB missing of IOMUXC base address during suspend
- ARCH_HAS_OPP has been removed by commit 78c5e0bb145d (PM / OPP:
Remove ARCH_HAS_OPP), so we need to kill it for IMX
- A small fix on enet reset pin of edmqmx6 board
* tag 'imx-fixes-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: imx6sx: fix the pad setting for uart CTS_B
ARM: dts: i.MX53: fix apparent bug in VPU clks
ARM: imx: correct gpu2d_axi and gpu3d_axi clock setting
ARM: dts: imx6: edmqmx6: change enet reset pin
ARM: dts: vf610-twr: Fix pinctrl_esdhc1 pin definitions.
ARM: imx: remove unnecessary ARCH_HAS_OPP select
ARM: imx: fix TLB missing of IOMUXC base address during suspend
ARM: imx6: fix SMP compilation again
Signed-off-by: Olof Johansson <olof@lixom.net>
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This enables the netfilter NAT engine in first place, otherwise
you cannot ever select the nf_tables nat expression if iptables
is not selected.
Reported-by: Matteo Croce <technoboy85@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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There's actually no good reason why we cannot use cgroup id 0,
so lets just remove this artificial barrier.
Reported-by: Alexey Perevalov <a.perevalov@samsung.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Tested-by: Alexey Perevalov <a.perevalov@samsung.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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If the pending buffers in the queue could not be pushed to the udc
endpoint we have to cancel the uvc_queue. Otherwise the gadget will get
stuck on this error. This patch calls uvc_queue_cancel if usb_ep_queue
failed.
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Now that we support 48-bit physical addressing, update MAX_PHYSMEM_BITS
accordingly.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@caviumnetworks.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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UEFI provides its own method for marking regions to reserve, via the
memory map which is also used to initialise memblock. So when using the
UEFI memory map, ignore any memreserve entries present in the DT.
Reported-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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The below patch improves the documentation for the gpio-property. Stephen
Warren has a good example here:
https://github.com/swarren/linux-tegra/commit/09789801
trackpad@4b {
compatible = "atmel,maxtouch";
reg = <0x4b>;
interrupt-parent = <&gpio>;
interrupts = <TEGRA_GPIO(W, 3) IRQ_TYPE_LEVEL_LOW>;
linux,gpio-keymap = <0 0 0 BTN_LEFT>;
};
This maps BTN_LEFT to the 4th bit of the T19 message.
Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Change the comment type (from /** to /*) to prevent DocBook from
complaining about missing description for nand_sdr_timings fields.
There is currently no need in documenting those fields because they are
fully described in the ONFI specification (which is pointed out in the
comment).
Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Currently when run on an APM platform the ARMv8 defconfig has no viable
options for rootfs other than ramdisk which is rather limiting. Since
we already have both SATA and the bits needed for NFS root enabled we just
need to enable the relevant drivers so do that, helping enable direct
testing of upstream.
If the configuration ends up becoming too big we can consider modularising
some of the drivers and asking people to use an initramfs but for now this
is not an issue.
Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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When booting via UEFI, the kernel Image is loaded at a 4 kB boundary and
the embedded EFI stub is executed in place. The EFI stub relocates the
Image to reside TEXT_OFFSET bytes above a 2 MB boundary, and jumps into
the kernel proper.
In AArch64, PC relative symbol references are emitted using adrp/add or
adrp/ldr pairs, where the offset into a 4 kB page is resolved using a
separate :lo12: relocation. This implicitly assumes that the code will
always be executed at the same relative offset with respect to a 4 kB
boundary, or the references will point to the wrong address.
This means we should link the kernel at a 4 kB aligned base address in
order to remain compatible with the base address the UEFI loader uses
when doing the initial load of Image. So update the code that generates
TEXT_OFFSET to choose a multiple of 4 kB.
At the same time, update the code so it chooses from the interval [0..2MB)
as the author originally intended.
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Missing semicolon in range check fix.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Vasily Averin says:
====================
cbq: incorrectly low bandwidth blocks limited traffic
v2: patch description changes
Fixes: f0f6ee1f70c4 ("cbq: incorrect processing of high limits")
Mainstream commit f0f6ee1f70c4 ("cbq: incorrect processing of high limits")
have side effect: if cbq bandwidth setting is less than real interface
throughput non-limited traffic can delay limited traffic for a very long time.
This happen because of q->now changes incorrectly in cbq_dequeue():
in described scenario L2T is much greater than real time delay,
and q->now gets an extra boost for each transmitted packet.
Accumulated boost prevents update q->now, and blocked class can wait
very long time until (q->now >= cl->undertime) will be true again.
More detailed problem description can be found here:
http://www.spinics.net/lists/netdev/msg292493.html
Following patches should fix the problem.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Now q->now_rt is identical to q->now and is not required anymore.
Signed-off-by: Vasily Averin <vvs@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Mainstream commit f0f6ee1f70c4 ("cbq: incorrect processing of high limits")
have side effect: if cbq bandwidth setting is less than real interface
throughput non-limited traffic can delay limited traffic for a very long time.
This happen because of q->now changes incorrectly in cbq_dequeue():
in described scenario L2T is much greater than real time delay,
and q->now gets an extra boost for each transmitted packet.
Accumulated boost prevents update q->now, and blocked class can wait
very long time until (q->now >= cl->undertime) will be true again.
To fix the problem the patch updates q->now on each cbq_update() call.
L2T-related pre-modification q->now was moved to cbq_update().
My testing confirmed that it fixes the problem and did not discover
any side-effects
Fixes: f0f6ee1f70c4 ("cbq: incorrect processing of high limits")
Signed-off-by: Vasily Averin <vvs@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The latest kernel fails to boot qemu arm images when using scsi
for disk access. Boot gets stuck after the following messages.
brd: module loaded
sym53c8xx 0000:00:0c.0: enabling device (0100 -> 0103)
sym0: <895a> rev 0x0 at pci 0000:00:0c.0 irq 93
sym0: No NVRAM, ID 7, Fast-40, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi host0: sym-2.2.3
Bisect points to commit 71e75c97f97a ("scsi: convert device_busy to
atomic_t"). Code inspection shows the following suspicious change
in scsi_request_fn.
out_delay:
- if (sdev->device_busy == 0 && !scsi_device_blocked(sdev))
+ if (atomic_read(&sdev->device_busy) && !scsi_device_blocked(sdev))
blk_delay_queue(q, SCSI_QUEUE_DELAY);
}
'sdev->device_busy == 0' was replaced with 'atomic_read(&sdev->device_busy)',
meaning the logic was reversed. Changing this expression to
'!atomic_read(&sdev->device_busy)' fixes the problem.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Jens Axboe <axboe@fb.com>
Reviewed-by: Venkatesh Srinivas <venkateshs@google.com>
Reviewed-by: Webb Scales <webbnh@hp.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This patch drops the userspace accessable sysfs entry for the maximum
datagram size of a 6LoWPAN fragment packet.
A fragment should not have a datagram size value greater than 1280 byte.
Instead of make this value configurable, we accept 1280 datagram size
fragment packets only.
Signed-off-by: Martin Townsend <martin.townsend@xsilon.com>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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This patch changes the 1281 MTU to 1280. Others stack have only a 1280
byte array for uncompressed 6LoWPAN packets, this avoid that these
stacks have an overflow. Sending 1281 uncompressed 6LoWPAN packets isn't
also rfc complaint.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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If received frame contains the reserved destination address mode. The
frame should be dropped and free the skb.
Signed-off-by: Martin Townsend <martin.townsend@xsilon.com>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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This patch correct the return value of lowpan_alloc_frag if an error
occur. Errno numbers should always be negative.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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This patch fix a memory leak if received frame was not able to parse.
Signed-off-by: Martin Townsend <martin.townsend@xsilon.com>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Current dmas explanation of SRC/DRS is confusable.
This patch clarifies it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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This is the errorneous scenario.
1. write data
2. do checkpoint
3. produce some dirty node pages by the gc thread
4. write back dirty node pages
5. f2fs_put_super will skip the checkpoint, since dirty count for node pages is
zero.
This patch removes such the wrong condition check.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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During the recovery, if an error like EIO or ENOMEM, f2fs_bug_on should skip.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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This patch fixes not to skip xattr recovery and inline xattr/data recovery
order.
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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During the recovery, we should clear the inline_xattr flag if its xattr node
block is recovered.
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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If an inode are fsynced multiple times with fsync & dent marks, this inode will
set FI_INC_LINK at find_fsync_dnodes during the recovery.
But, in recover_inode, recover_dentry doesn't clear that flag when multiple hits
were occurred.
So this patch removes the flag for the further consistency.
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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If a new inode page is needed for recover_dentry, we should assing i_inline
as zero.
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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This patch adds a parentheses to make clear for condition check.
And also it changes the return type for better meanings.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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If mkwrite is called to an inode having inline_data, it can overwrite the data
index space as NEW_ADDR. (e.g., the first 4 bytes are coincidently zero)
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Fix typo and some grammatical errors.
The words "filesystem" and "readahead" are being used without the space treewide.
Signed-off-by: Park Ju Hyung <qkrwngud825@gmail.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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