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Currently, multi_v7_defconfig + CONFIG_FUNCTION_TRACER fails to build
with clang:
arm-linux-gnueabi-ld: kernel/softirq.o: in function `_local_bh_enable':
softirq.c:(.text+0x504): undefined reference to `mcount'
arm-linux-gnueabi-ld: kernel/softirq.o: in function `__local_bh_enable_ip':
softirq.c:(.text+0x58c): undefined reference to `mcount'
arm-linux-gnueabi-ld: kernel/softirq.o: in function `do_softirq':
softirq.c:(.text+0x6c8): undefined reference to `mcount'
arm-linux-gnueabi-ld: kernel/softirq.o: in function `irq_enter':
softirq.c:(.text+0x75c): undefined reference to `mcount'
arm-linux-gnueabi-ld: kernel/softirq.o: in function `irq_exit':
softirq.c:(.text+0x840): undefined reference to `mcount'
arm-linux-gnueabi-ld: kernel/softirq.o:softirq.c:(.text+0xa50): more undefined references to `mcount' follow
clang can emit a working mcount symbol, __gnu_mcount_nc, when
'-meabi gnu' is passed to it. Until r369147 in LLVM, this was
broken and caused the kernel not to boot with '-pg' because the
calling convention was not correct. Always build with '-meabi gnu'
when using clang but ensure that '-pg' (which is added with
CONFIG_FUNCTION_TRACER and its prereq CONFIG_HAVE_FUNCTION_TRACER)
cannot be added with it unless this is fixed (which means using
clang 10.0.0 and newer).
Link: https://github.com/ClangBuiltLinux/linux/issues/35
Link: https://bugs.llvm.org/show_bug.cgi?id=33845
Link: https://github.com/llvm/llvm-project/commit/16fa8b09702378bacfa3d07081afe6b353b99e60
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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adjust_lowmem_bounds() checks every memblocks in order to find the boundary
between lowmem and highmem. However some memblocks could be marked as NOMAP
so they are not used by kernel, which should be skipped while calculating
the boundary.
Signed-off-by: Chester Lin <clin@suse.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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address
The calculation of memblock_limit in adjust_lowmem_bounds() assumes that
bank 0 starts from a PMD-aligned address. However, the beginning of the
first bank may be NOMAP memory and the start of usable memory
will be not aligned to PMD boundary. In such case the memblock_limit will
be set to the end of the NOMAP region, which will prevent any memblock
allocations.
Mark the region between the end of the NOMAP area and the next PMD-aligned
address as NOMAP as well, so that the usable memory will start at
PMD-aligned address.
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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The Armada 38x and other integrated SoCs use a reduced pin count so the
width of the SDRAM interface is smaller than the Armada XP SoCs. This
means that the definition of "full" and "half" width is reduced from
64/32 to 32/16.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Add support for the ECC functionality as found in the DDR RAM and L2
cache controllers on the MV78230/MV78x60 SoCs. This driver has been
tested on the MV78460 (on a custom board with a DDR3 ECC DIMM).
[cp use SPDX license]
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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We already have wrappers for x8 and x16, so add the missing x32 one.
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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The aurora cache on the Marvell Armada-XP SoC supports ECC protection
for the L2 data arrays. Add a "marvell,ecc-enable" device tree property
which can be used to enable this.
[jlu@pengutronix.de: use aurora specific define AURORA_ACR_ECC_EN]
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Add documentation for the marvell,ecc-enable properties which can be
used to enable ECC on the Marvell aurora cache.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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The aurora cache on the Marvell Armada-XP SoC supports the same tag
parity features as the other l2x0 cache implementations.
[jlu@pengutronix.de: use aurora specific define AURORA_ACR_PARITY_EN]
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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These defines will be used by subsequent patches to add support for the
parity check and error correction functionality in the Aurora L2 cache
controller.
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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The macro name is too generic, so add a AURORA_ prefix.
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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This include file will be used by the AURORA EDAC code.
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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The stackframe setup when compiled with clang is different.
Since the stack unwinder expects the gcc stackframe setup it
fails to print backtraces. This patch adds support for the
clang stackframe setup.
Link: https://github.com/ClangBuiltLinux/linux/issues/35
Cc: clang-built-linux@googlegroups.com
Suggested-by: Tri Vo <trong@google.com>
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Translation faults arising from cache maintenance instructions are
rather unhelpfully reported with an FSR value where the WnR field is set
to 1, indicating that the faulting access was a write. Since cache
maintenance instructions on 32-bit ARM do not require any particular
permissions, this can cause our private 'cacheflush' system call to fail
spuriously if a translation fault is generated due to page aging when
targetting a read-only VMA.
In this situation, we will return -EFAULT to userspace, although this is
unfortunately suppressed by the popular '__builtin___clear_cache()'
intrinsic provided by GCC, which returns void.
Although it's tempting to write this off as a userspace issue, we can
actually do a little bit better on CPUs that support LPAE, even if the
short-descriptor format is in use. On these CPUs, cache maintenance
faults additionally set the CM field in the FSR, which we can use to
suppress the write permission checks in the page fault handler and
succeed in performing cache maintenance to read-only areas even in the
presence of a translation fault.
Reported-by: Orion Hodson <oth@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Since commit ad67b74d2469d9b8 ("printk: hash addresses printed with
%p"), an obfuscated kernel pointer is printed at every boot if
debugging is enabled:
vdso: 1 text pages at base (____ptrval____)
Remove the print completely, as it's useless without the address.
Based on commit 0f1bf7e39822476b ("arm64/vdso: don't leak kernel
addresses").
Fixes: ad67b74d2469d9b8 ("printk: hash addresses printed with %p")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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When you run "make clean" for arm, it never visits mach-* or plat-*
directories because machine-y and plat-y are just empty.
When cleaning, all machine, plat directories are accumulated to
machine-, plat-, respectively. So, let's pass them to core- to
clean up those directories.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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This open-coded nop as mov r0, r0 is a development history
artifact.
First commit b11fe38883d1
("ARM: 6663/1: make Thumb2 kernel entry point more similar
to the ARM one") moved the code around so that the nops
would come before the conditional thumb instructions, as it
turned out that some boot loaders were patching the initial
nop instructions in the kernel. At this point it is clear
that all mov r0,r0 are open-coded nops.
Then commit 81a0bc39ea19 ("ARM: add UEFI stub support")
moved things around and defined __nop for EFI support and
missed this open-coded nop.
commit 06a4b6d009a1
("ARM: 8677/1: boot/compressed: fix decompressor header
layout for v7-M") makes all invocations of __nop be wide,
but that is fine, because this is what we want: the
mov r0,r0 is inside ifndef CONFIG_THUMB2_KERNEL.
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Acked-by: Roy Franz <rfranz@marvell.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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This was unclear to me until Russell explained the obvious
that 8 nops are added to offset an a.out image. Reading
git history reveals that thumb kernels first removed the
nops and then kept 7 of them (the last instruction being
a switch to thumb mode) as it turns out that some boot
loaders were using this as a "patch area". Also the magic
numbers after the initial nops and the jump of course
need to stay in the same offset for kernel file
detection.
Make the code easier to understand with a comment.
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Acked-by: Roy Franz <rfranz@marvell.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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To use Fastfpe, a user is supposed to enable CONFIG_FPE_FASTFPE
and put downstream source files into arch/arm/fastfpe/.
It is not working for O= build because $(wildcard arch/arm/fastfpe)
checks if it exists in $(objtree), not in $(srctree).
Add the $(srctree)/ prefix to fix it.
While I was here, I slightly refactored the code.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Clang produces references to __aeabi_uidivmod and __aeabi_idivmod for
arm-linux-gnueabi and arm-linux-gnueabihf targets incorrectly when AEABI
is not selected (such as when OABI_COMPAT is selected).
While this means that OABI userspaces wont be able to upgraded to
kernels built with Clang, it means that boards that don't enable AEABI
like s3c2410_defconfig will stop failing to link in KernelCI when built
with Clang.
Link: https://github.com/ClangBuiltLinux/linux/issues/482
Link: https://groups.google.com/forum/#!msg/clang-built-linux/yydsAAux5hk/GxjqJSW-AQAJ
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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There is error from cppcheck tool.
"Shifting signed 32-bit value by 31 bits is undefined behaviour errors"
This error is false positive.
change to use BIT() macro for improvement.
Signed-off-by: Phong Tran <tranmanphong@gmail.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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This commit removes the open-coded CPU-offline notification with new
common code. In particular, this change avoids calling scheduler code
using RCU from an offline CPU that RCU is ignoring. This is a minimal
change. A more intrusive change might invoke the cpu_check_up_prepare()
and cpu_set_state_online() functions at CPU-online time, which would
allow onlining throw an error if the CPU did not go offline properly.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: linux-arm-kernel@lists.infradead.org
Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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clang warns:
arch/arm/mach-iop13xx/pci.c:292:7: warning: logical not is only applied
to the left hand side of this comparison [-Wlogical-not-parentheses]
if (!iop13xx_atux_pci_status(1) == 0)
^ ~~
arch/arm/mach-iop13xx/pci.c:439:7: warning: logical not is only applied
to the left hand side of this comparison [-Wlogical-not-parentheses]
if (!iop13xx_atue_pci_status(1) == 0)
^ ~~
!func() == 0 is equivalent to func(), which clears up this warning and
makes the code more readable.
Link: https://github.com/ClangBuiltLinux/linux/issues/543
Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull MTD fix from Richard Weinberger:
"A single fix for MTD to correctly set the spi-nor WP pin"
* tag 'fixes-for-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
mtd: spi-nor: Fix the disabling of write protection at init
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"Two fixes that popped up during testing:
- fix for sysfs-related code that adds/removes block groups, warnings
appear during several fstests in connection with sysfs updates in
5.3, the fix essentially replaces a workaround with scope NOFS and
applies to 5.2-based branch too
- add sanity check of trim range"
* tag 'for-5.3-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: trim: Check the range passed into to prevent overflow
Btrfs: fix sysfs warning and missing raid sysfs directories
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"A set of fixes for x86:
- Fix the inconsistent error handling in the umwait init code
- Rework the boot param zeroing so gcc9 stops complaining about out
of bound memset. The resulting source code is actually more sane to
read than the smart solution we had
- Maintainers update so Tony gets involved when Intel models are
added
- Some more fallthrough fixes"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot: Save fields explicitly, zero out everything else
MAINTAINERS, x86/CPU: Tony Luck will maintain asm/intel-family.h
x86/fpu/math-emu: Address fallthrough warnings
x86/apic/32: Fix yet another implicit fallthrough warning
x86/umwait: Fix error handling in umwait_init()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fix from Thomas Gleixner:
"A single fix for a EFI mixed mode regression caused by recent rework
which did not take the firmware bitwidth into account"
* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi-stub: Fix get_efi_config_table on mixed-mode setups
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
Pull SPDX fixes from Greg KH:
"Here are four small SPDX fixes for 5.3-rc5.
A few style fixes for some SPDX comments, added an SPDX tag for one
file, and fix up some GPL boilerplate for another file.
All of these have been in linux-next for a few weeks with no reported
issues (they are comment changes only, so that's to be expected...)"
* tag 'spdx-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
i2c: stm32: Use the correct style for SPDX License Identifier
intel_th: Use the correct style for SPDX License Identifier
coccinelle: api/atomic_as_refcounter: add SPDX License Identifier
kernel/configs: Replace GPL boilerplate code with SPDX identifier
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small char and misc driver fixes for 5.3-rc5.
These are two different subsystems needing some fixes, the habanalabs
driver which is has some more big endian fixes for problems found. The
other are some small soundwire fixes, including some Kconfig
dependencies needed to resolve reported build errors.
All of these have been in linux-next this week with no reported
issues"
* tag 'char-misc-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
misc: xilinx-sdfec: fix dependency and build error
habanalabs: fix device IRQ unmasking for BE host
habanalabs: fix endianness handling for internal QMAN submission
habanalabs: fix completion queue handling when host is BE
habanalabs: fix endianness handling for packets from user
habanalabs: fix DRAM usage accounting on context tear down
habanalabs: Avoid double free in error flow
soundwire: fix regmap dependencies and align with other serial links
soundwire: cadence_master: fix definitions for INTSTAT0/1
soundwire: cadence_master: fix register definition for SLAVE_STATE
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/IIO fixes from Greg KH:
"Here are four small staging and iio driver fixes for 5.3-rc5
Two are for the dt3000 comedi driver for some reported problems found
in that codebase, and two are some small iio fixes.
All of these have been in linux-next this week with no reported
issues"
* tag 'staging-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: comedi: dt3000: Fix rounding up of timer divisor
staging: comedi: dt3000: Fix signed integer overflow 'divider * base'
iio: adc: max9611: Fix temperature reading in probe
iio: frequency: adf4371: Fix output frequency setting
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are number of small USB fixes for 5.3-rc5.
Syzbot has been on a tear recently now that it has some good USB
debugging hooks integrated, so there's a number of fixes in here found
by those tools for some _very_ old bugs. Also a handful of gadget
driver fixes for reported issues, some hopefully-final dma fixes for
host controller drivers, and some new USB serial gadget driver ids.
All of these have been in linux-next this week with no reported issues
(the usb-serial ones were in linux-next in its own branch, but merged
into mine on Friday)"
* tag 'usb-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: add a hcd_uses_dma helper
usb: don't create dma pools for HCDs with a localmem_pool
usb: chipidea: imx: fix EPROBE_DEFER support during driver probe
usb: host: fotg2: restart hcd after port reset
USB: CDC: fix sanity checks in CDC union parser
usb: cdc-acm: make sure a refcount is taken early enough
USB: serial: option: add the BroadMobi BM818 card
USB: serial: option: Add Motorola modem UARTs
USB: core: Fix races in character device registration and deregistraion
usb: gadget: mass_storage: Fix races between fsg_disable and fsg_set_alt
usb: gadget: composite: Clear "suspended" on reset/disconnect
usb: gadget: udc: renesas_usb3: Fix sysfs interface of "role"
USB: serial: option: add D-Link DWM-222 device ID
USB: serial: option: Add support for ZTE MF871A
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Pull block fixes from Jens Axboe:
"A collection of fixes that should go into this series. This contains:
- Revert of the REQ_NOWAIT_INLINE and associated dio changes. There
were still corner cases there, and even though I had a solution for
it, it's too involved for this stage. (me)
- Set of NVMe fixes (via Sagi)
- io_uring fix for fixed buffers (Anthony)
- io_uring defer issue fix (Jackie)
- Regression fix for queue sync at exit time (zhengbin)
- xen blk-back memory leak fix (Wenwen)"
* tag 'for-linus-2019-08-17' of git://git.kernel.dk/linux-block:
io_uring: fix an issue when IOSQE_IO_LINK is inserted into defer list
block: remove REQ_NOWAIT_INLINE
io_uring: fix manual setup of iov_iter for fixed buffers
xen/blkback: fix memory leaks
blk-mq: move cancel of requeue_work to the front of blk_exit_queue
nvme-pci: Fix async probe remove race
nvme: fix controller removal race with scan work
nvme-rdma: fix possible use-after-free in connect error flow
nvme: fix a possible deadlock when passthru commands sent to a multipath device
nvme-core: Fix extra device_put() call on error path
nvmet-file: fix nvmet_file_flush() always returning an error
nvmet-loop: Flush nvme_delete_wq when removing the port
nvmet: Fix use-after-free bug when a port is removed
nvme-multipath: revalidate nvme_ns_head gendisk in nvme_validate_ns
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git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull Hyper-V fixes from Sasha Levin:
- A few fixes for the userspace hyper-v tools from Adrian Vladu.
- A fix for the hyper-v MAINTAINERs entry from Lan Tianyu.
- Fix for SPDX license identifier in the userspace tools from Nishad
Kamdar.
* tag 'hyperv-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
MAINTAINERS: Fix Hyperv vIOMMU driver file name
tools: hv: Use the correct style for SPDX License Identifier
tools: hv: fix typos in toolchain
tools: hv: fix KVP and VSS daemons exit code
tools: hv: fixed Python pep8/flake8 warnings for lsvmbus
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The Hyperv vIOMMU file name should be "hyperv-iommu.c" rather
than "hyperv_iommu.c". This patch is to fix it.
Signed-off-by: Lan Tianyu <Tianyu.Lan@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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This patch corrects the SPDX License Identifier style
in the trace header file related to Microsoft Hyper-V
client drivers.
For C header files Documentation/process/license-rules.rst
mandates C-like comments (opposed to C source files where
C++ style should be used)
Changes made by using a script provided by Joe Perches here:
https://lkml.org/lkml/2019/2/7/46
Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Fix typos in the HyperV toolchain.
Signed-off-by: Adrian Vladu <avladu@cloudbasesolutions.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Sasha Levin <sashal@kernel.org>
Cc: Alessandro Pilotti <apilotti@cloudbasesolutions.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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HyperV KVP and VSS daemons should exit with 0 when the '--help'
or '-h' flags are used.
Signed-off-by: Adrian Vladu <avladu@cloudbasesolutions.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Sasha Levin <sashal@kernel.org>
Cc: Alessandro Pilotti <apilotti@cloudbasesolutions.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Fixed pep8/flake8 python style code for lsvmbus tool.
The TAB indentation was on purpose ignored (pep8 rule W191) to make
sure the code is complying with the Linux code guideline.
The following command doe not show any warnings now:
pep8 --ignore=W191 lsvmbus
flake8 --ignore=W191 lsvmbus
Signed-off-by: Adrian Vladu <avladu@cloudbasesolutions.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Sasha Levin <sashal@kernel.org>
Cc: Dexuan Cui <decui@microsoft.com>
Cc: Alessandro Pilotti <apilotti@cloudbasesolutions.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"I2C has one revert because of a regression, two fixes for tiny race
windows (which we were not able to trigger), a MAINTAINERS addition,
and a SPDX fix"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: stm32: Use the correct style for SPDX License Identifier
i2c: emev2: avoid race when unregistering slave client
i2c: rcar: avoid race when unregistering slave client
MAINTAINERS: i2c-imx: take over maintainership
Revert "i2c: imx: improve the error handling in i2c_imx_dma_request()"
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Paul Walmsley:
- Two patches to fix significant bugs in floating point register
context handling
- A minor fix in RISC-V flush_tlb_page(), to supply a valid end address
to flush_tlb_range()
- Two minor defconfig additions: to build the virtio hwrng driver by
default (for QEMU targets), and to partially synchronize the 32-bit
defconfig with the 64-bit defconfig
* tag 'riscv/for-v5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Make __fstate_clean() work correctly.
riscv: Correct the initialized flow of FP register
riscv: defconfig: Update the defconfig
riscv: rv32_defconfig: Update the defconfig
riscv: fix flush_tlb_range() end address for flush_tlb_page()
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https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus
Johan writes:
USB-serial fixes for 5.3-rc5
Here are some new modem device ids.
All have been in linux-next with no reported issues.
Signed-off-by: Johan Hovold <johan@kernel.org>
* tag 'usb-serial-5.3-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
USB: serial: option: add the BroadMobi BM818 card
USB: serial: option: Add Motorola modem UARTs
USB: serial: option: add D-Link DWM-222 device ID
USB: serial: option: Add support for ZTE MF871A
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Pull Xtensa fix from Max Filippov:
"Add missing isync into cpu_reset to make sure ITLB changes are
effective"
* tag 'xtensa-20190816' of git://github.com/jcmvbkbc/linux-xtensa:
xtensa: add missing isync to the cpu_reset TLB code
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Don't taint the kernel if CPUs have different sets of page sizes
supported (other than the one in use).
- Issue I-cache maintenance for module ftrace trampoline.
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: ftrace: Ensure module ftrace trampoline is coherent with I-side
arm64: cpufeature: Don't treat granule sizes as strict
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The initial support for dynamic ftrace trampolines in modules made use
of an indirect branch which loaded its target from the beginning of
a special section (e71a4e1bebaf7 ("arm64: ftrace: add support for far
branches to dynamic ftrace")). Since no instructions were being patched,
no cache maintenance was needed. However, later in be0f272bfc83 ("arm64:
ftrace: emit ftrace-mod.o contents through code") this code was reworked
to output the trampoline instructions directly into the PLT entry but,
unfortunately, the necessary cache maintenance was overlooked.
Add a call to __flush_icache_range() after writing the new trampoline
instructions but before patching in the branch to the trampoline.
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: James Morse <james.morse@arm.com>
Cc: <stable@vger.kernel.org>
Fixes: be0f272bfc83 ("arm64: ftrace: emit ftrace-mod.o contents through code")
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These add a check to avoid recent suspend-to-idle power regression on
systems with NVMe drives where the PCIe ASPM policy is "performance"
(or when the kernel is built without ASPM support), fix an issue
related to frequency limits in the schedutil cpufreq governor and fix
a mistake related to the PM QoS usage in the cpufreq core introduced
recently.
Specifics:
- Disable NVMe power optimization related to suspend-to-idle added
recently on systems where PCIe ASPM is not able to put PCIe links
into low-power states to prevent excess power from being drawn by
the system while suspended (Rafael Wysocki).
- Make the schedutil governor handle frequency limits changes
properly in all cases (Viresh Kumar).
- Prevent the cpufreq core from treating positive values returned by
dev_pm_qos_update_request() as errors (Viresh Kumar)"
* tag 'pm-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
nvme-pci: Allow PCI bus-level PM to be used if ASPM is disabled
PCI/ASPM: Add pcie_aspm_enabled()
cpufreq: schedutil: Don't skip freq update when limits change
cpufreq: dev_pm_qos_update_request() can return 1 on success
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git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fixes from Vinod Koul:
"Fixes in dmaengine drivers for:
- dw-edma: endianess, _iomem type and stack usages
- ste_dma40: unneeded variable and null-pointer dereference
- tegra210-adma: unused function
- omap-dma: off-by-one fix"
* tag 'dmaengine-fix-5.3-rc5' of git://git.infradead.org/users/vkoul/slave-dma:
omap-dma/omap_vout_vrfb: fix off-by-one fi value
dmaengine: stm32-mdma: Fix a possible null-pointer dereference in stm32_mdma_irq_handler()
dmaengine: tegra210-adma: Fix unused function warnings
dmaengine: ste_dma40: fix unneeded variable warning
dmaengine: dw-edma: fix endianess confusion
dmaengine: dw-edma: fix __iomem type confusion
dmaengine: dw-edma: fix unnecessary stack usage
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"All small fixes targeted for stable:
- Two fixes for USB-audio with malformed descriptor, spotted by
fuzzers
- Two fixes Conexant HD-audio codec wrt power management
- Quirks for HD-audio AMD platform and HP laptop
- HD-audio memory leak fix"
* tag 'sound-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: usb-audio: Fix a stack buffer overflow bug in check_input_term
ALSA: usb-audio: Fix an OOB bug in parse_audio_mixer_unit
ALSA: hda - Add a generic reboot_notify
ALSA: hda - Let all conexant codec enter D3 when rebooting
ALSA: hda/realtek - Add quirk for HP Envy x360
ALSA: hda - Fix a memory leak bug
ALSA: hda - Apply workaround for another AMD chip 1022:1487
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Pull drm fixes from Dave Airlie:
"Nothing too crazy this week, one amdgpu fix to use vmalloc for a
struct that grew in size, and another MST fix for nouveau, and some
other misc fixes:
i915:
- single GVT use after free fix
scheduler:
- entity destruction race fix
amdgpu:
- struct allocation fix
- gfx9 soft recovery fix
nouveau:
- followup MST fix
ast:
- vga register race fix"
* tag 'drm-fixes-2019-08-16' of git://anongit.freedesktop.org/drm/drm:
drm/nouveau: Only recalculate PBN/VCPI on mode/connector changes
drm/ast: Fixed reboot test may cause system hanged
drm/scheduler: use job count instead of peek
drm/amd/display: use kvmalloc for dc_state (v2)
drm/amdgpu: fix gfx9 soft recovery
drm/i915: Use after free in error path in intel_vgpu_create_workload()
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* pm-cpufreq:
cpufreq: schedutil: Don't skip freq update when limits change
cpufreq: dev_pm_qos_update_request() can return 1 on success
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