Some devices have an optimization in place to enable the firmware to
be retaineed during a system reboot, so after reboot the device can skip
requesting and loading the firmware. This can save up to 1s in load
time. The mt7601u 802.11 device happens to be such a device.
When these devices retain the firmware on a reboot and then suspend
they can miss looking for the firmware on resume. To help with this we
need a way to cache the firmware when such an optimization has taken
place.
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When the sysctl knob is used ignore the fallback mechanism we pr_info_once()
to ensure its noted the knob was used. The print incorrectly states its a
debugfs knob, its a sysctl knob, so correct this typo.
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
After some other include file changes, fixes:
drivers/base/firmware_loader/fallback.c: In function 'map_fw_priv_pages':
drivers/base/firmware_loader/fallback.c:232:2: error: implicit declaration of function 'vunmap'; did you mean 'kunmap'? [-Werror=implicit-function-declaration]
vunmap(fw_priv->data);
^~~~~~
kunmap
drivers/base/firmware_loader/fallback.c:233:18: error: implicit declaration of function 'vmap'; did you mean 'kmap'? [-Werror=implicit-function-declaration]
fw_priv->data = vmap(fw_priv->pages, fw_priv->nr_pages, 0,
^~~~
kmap
drivers/base/firmware_loader/fallback.c:233:16: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
fw_priv->data = vmap(fw_priv->pages, fw_priv->nr_pages, 0,
^
drivers/base/firmware_loader/fallback.c: In function 'firmware_loading_store':
drivers/base/firmware_loader/fallback.c:274:4: error: implicit declaration of function 'vfree'; did you mean 'kvfree'? [-Werror=implicit-function-declaration]
vfree(fw_priv->pages);
^~~~~
kvfree
drivers/base/firmware_loader/fallback.c: In function 'fw_realloc_pages':
drivers/base/firmware_loader/fallback.c:405:15: error: implicit declaration of function 'vmalloc'; did you mean 'kvmalloc'? [-Werror=implicit-function-declaration]
new_pages = vmalloc(new_array_size * sizeof(void *));
^~~~~~~
kvmalloc
drivers/base/firmware_loader/fallback.c:405:13: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
new_pages = vmalloc(new_array_size * sizeof(void *));
^
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
request_firmware_into_buf() explicitly disables the firmware cache,
meanwhile the firmware cache cannot be used when request_firmware_nowait()
is used without the uevent. Enforce a sanity check for this to avoid future
issues undocumented behaviours should misuses of the firmware cache
happen later.
One of the reasons we want to enforce this is the firmware cache is
used for helping with suspend/resume, and if incompatible calls use it
they can stall suspend.
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Users of the custom firmware fallback interface is are not supposed to
use the firmware cache interface, this can happen if for instance the
one of the APIs which use the firmware cache is used first with one
firmware file and then the request_firmware_nowait(uevent=false) API
is used with the same file.
We'll soon become strict about this on the firmware interface to reject
such calls later, so correct the test scripts to avoid such uses as well.
We address this on the tests scripts by simply using unique names when
testing the custom fallback interface.
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add a helper to check if the firmware cache is already setup for a device.
This will be used later.
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Currently fw_add_devm_name() returns 1 if the firmware cache
was already set. This makes it complicated for us to check for
correctness. It is actually non-fatal if the firmware cache
is already setup, so just return 0, and simplify the checkers.
fw_add_devm_name() adds device's name onto the devres for the
device so that prior to suspend we cache the firmware onto memory,
so that on resume the firmware is reliably available. We never
were checking for success for this call though, meaning in some
really rare cases we my have never setup the firmware cache for
a device, which could in turn make resume fail.
This is all theoretical, no known issues have been reported.
This small issue has been present way since the addition of the
devres firmware cache names on v3.7.
Fixes: f531f05ae9 ("firmware loader: store firmware name into devres list")
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reflects much clearer what is being done.
While at it, kdoc'ify it.
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Since we now have knobs to twiddle what used to be set on kernel
configurations we can build one base kernel configuration and modify
behaviour to mimic such kernel configurations to test them.
Provided you build a kernel with:
CONFIG_TEST_FIRMWARE=y
CONFIG_FW_LOADER=y
CONFIG_FW_LOADER_USER_HELPER=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
We should now be able test all possible kernel configurations
when FW_LOADER=y. Note that when FW_LOADER=m we just don't provide
the built-in functionality of the built-in firmware.
If you're on an old kernel and either don't have /proc/config.gz
(CONFIG_IKCONFIG_PROC) or haven't enabled CONFIG_FW_LOADER_USER_HELPER
we cannot run these dynamic tests, so just run both scripts just
as we used to before making blunt assumptions about your setup
and requirements exactly as we did before.
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This expands our library with as many things we could find which
both scripts we use share.
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
You currently need four different kernel builds to test the firmware
API fully. By adding a proc knob to force disable the fallback mechanism
completely we are able to reduce the amount of kernels you need built
to test the firmware API down to two.
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Currently one requires to test four kernel configurations to test the
firmware API completely:
0)
CONFIG_FW_LOADER=y
1)
o CONFIG_FW_LOADER=y
o CONFIG_FW_LOADER_USER_HELPER=y
2)
o CONFIG_FW_LOADER=y
o CONFIG_FW_LOADER_USER_HELPER=y
o CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
3) When CONFIG_FW_LOADER=m the built-in stuff is disabled, we have
no current tests for this.
We can reduce the requirements to three kernel configurations by making
fw_config.force_sysfs_fallback a proc knob we flip on off. For kernels that
disable CONFIG_IKCONFIG_PROC this can also enable one to inspect if
CONFIG_FW_LOADER_USER_HELPER_FALLBACK was enabled at build time by checking
the proc value at boot time.
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This will make it much easier to manage as we manage to
keep trimming componnents down into their own files to more
easily manage and maintain this codebase.
Suggested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The firmware fallback code is optional. Split that code out to help
distinguish the fallback functionlity from othere core firmware loader
features. This should make it easier to maintain and review code
changes.
The reason for keeping the configuration onto a table which is built-in
if you enable firmware loading is so that we can later enable the kernel
after subsequent patches to tweak this configuration, even if the
firmware loader is modular.
This introduces no functional changes.
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The timeout is a fallback construct, so we can just stuff the
timeout configuration under struct firmware_fallback_config.
While at it, add a few helpers which vets the use of getting or
setting the timeout as an int. The main use of the timeout is
to set a timeout for completion, and that is used as an unsigned
long. There a few cases however where it makes sense to get or
set the timeout as an int, the helpers annotate these use cases
have been properly vetted for.
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We only use the timeout for the firmware fallback mechanism
except for trying to set the timeout during the cache setup
for resume/suspend. For those cases, setting the timeout should
be a no-op, so just reflect this in code by adding helpers for it.
This change introduces no functional changes.
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
All CONFIG_FW_LOADER_USER_HELPER_FALLBACK really is, is just a bool,
initailized at build time. Define it as such. This simplifies the
logic even further, removing now all explicit #ifdefs around the code.
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit 3c47d19ff4 ("drivers: base: add coredump driver ops") added
a new callback in struct device_driver, but not a kerneldoc description
so here it is.
Fixes: 3c47d19ff4 ("drivers: base: add coredump driver ops")
Signed-off-by: Arend van Spriel <aspriel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There is no need to split string literals. Moreover, it would be simpler
to grep for an actual code line, when debugging, by using almost any
part of the string literal in question.
While here, replace printk(LEVEL) by pr_lvl() macros.
No functional change intended.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
if device_register() returned an error! Always use put_device()
to give up the reference initialized.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
if device_register() returned an error! Always use put_device()
to give up the reference initialized.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
if device_register() returned an error! Always use put_device()
to give up the reference initialized.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Never directly free @dev after calling device_register(), even
if it returned an error! Always use put_device() to give up the
reference initialized.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit 452562abb5 ("base: arch_topology: fix section
mismatch build warnings"). It causes the notifier call hangs in some
use-cases.
In some cases with using maxcpus, some of cpus are booted first and
then the remaining cpus are booted. As an example, some users who want
to realize fast boot up often use the following procedure.
1) Define all CPUs on device tree (CA57x4 + CA53x4)
2) Add "maxcpus=4" in bootargs
3) Kernel boot up with CA57x4
4) After kernel boot up, CA53x4 is booted from user
When kernel init was finished, CPUFREQ_POLICY_NOTIFIER was not still
unregisterd. This means that "__init init_cpu_capacity_callback()"
will be called after kernel init sequence. To avoid this problem,
it needs to remove __init{,data} annotations by reverting this commit.
Also, this commit was needed to fix kernel compile issue below.
However, this issue was also fixed by another patch: commit 82d8ba717c
("arch_topology: Fix section miss match warning due to
free_raw_capacity()") in v4.15 as well.
Whereas commit 452562abb5 added all the missing __init annotations,
commit 82d8ba717c removed it from free_raw_capacity().
WARNING: vmlinux.o(.text+0x548f24): Section mismatch in reference
from the function init_cpu_capacity_callback() to the variable
.init.text:$x
The function init_cpu_capacity_callback() references
the variable __init $x.
This is often because init_cpu_capacity_callback lacks a __init
annotation or the annotation of $x is wrong.
Fixes: 82d8ba717c ("arch_topology: Fix section miss match warning due to free_raw_capacity()")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Gaku Inami <gaku.inami.xh@renesas.com>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The firmware loader code has grown quite a bit over the years.
The practice of stuffing everything we need into one file makes
the code hard to follow.
In order to split the firmware loader code into different components
we must pick a module name and a first object target file. We must
keep the firmware_class name to remain compatible with scripts which
have been relying on the sysfs loader path for years, so the old module
name stays. We can however rename the C file without affecting the
module name.
The firmware_class used to represent the idea that the code was a simple
sysfs firmware loader, provided by the struct class firmware_class.
The sysfs firmware loader used to be the default, today its only the
fallback mechanism.
This only renames the target code then to make emphasis of what the code
does these days. With this change new features can also use a new object
files.
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Now that we have a kconfig checker just use that instead of relying
on testing a sysfs directory being present, since our requirements
are spelled out.
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When a kernel is not built with:
CONFIG_HAS_FW_LOADER_USER_HELPER_FALLBACK=y
We don't currently enable testing fw_fallback.sh. For kernels that
still enable the fallback mechanism, its possible to use the async
request firmware API call request_firmware_nowait() using the custom
interface to use the fallback mechanism, so we should be able to test
this but we currently cannot.
We can enable testing without CONFIG_HAS_FW_LOADER_USER_HELPER_FALLBACK=y
by relying on /proc/config.gz (CONFIG_IKCONFIG_PROC), if present. If you
don't have this we'll have no option but to rely on old heuristics for now.
We stuff the new kconfig_has() helper into our shared library as we'll
later expando on its use elsewhere.
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We'll expland on this later, for now just add basic module checker.
While at it, move this all to use /bin/bash as we'll have much more
flexibility with it.
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull x86/pti updates from Thomas Gleixner:
"Yet another pile of melted spectrum related updates:
- Drop native vsyscall support finally as it causes more trouble than
benefit.
- Make microcode loading more robust. There were a few issues
especially related to late loading which are now surfacing because
late loading of the IB* microcodes addressing spectre issues has
become more widely used.
- Simplify and robustify the syscall handling in the entry code
- Prevent kprobes on the entry trampoline code which lead to kernel
crashes when the probe hits before CR3 is updated
- Don't check microcode versions when running on hypervisors as they
are considered as lying anyway.
- Fix the 32bit objtool build and a coment typo"
* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/kprobes: Fix kernel crash when probing .entry_trampoline code
x86/pti: Fix a comment typo
x86/microcode: Synchronize late microcode loading
x86/microcode: Request microcode on the BSP
x86/microcode/intel: Look into the patch cache first
x86/microcode: Do not upload microcode if CPUs are offline
x86/microcode/intel: Writeback and invalidate caches before updating microcode
x86/microcode/intel: Check microcode revision before updating sibling threads
x86/microcode: Get rid of struct apply_microcode_ctx
x86/spectre_v2: Don't check microcode versions when running under hypervisors
x86/vsyscall/64: Drop "native" vsyscalls
x86/entry/64/compat: Save one instruction in entry_INT80_compat()
x86/entry: Do not special-case clone(2) in compat entry
x86/syscalls: Use COMPAT_SYSCALL_DEFINEx() macros for x86-only compat syscalls
x86/syscalls: Use proper syscall definition for sys_ioperm()
x86/entry: Remove stale syscall prototype
x86/syscalls/32: Simplify $entry == $compat entries
objtool: Fix 32-bit build
Pull timer fix from Thomas Gleixner:
"Just a single fix which adds a missing Kconfig dependency to avoid
unmet dependency warnings"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource/atmel-st: Add 'depends on HAS_IOMEM' to fix unmet dependency
Pull RAS fixes from Thomas Gleixner:
"Two small fixes for RAS/MCE:
- Serialize sysfs changes to avoid concurrent modificaiton of
underlying data
- Add microcode revision to Machine Check records. This should have
been there forever, but now with the broken microcode versions in
the wild it has become important"
* 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/MCE: Serialize sysfs changes
x86/MCE: Save microcode revision in machine check records
Pull perf updates from Thomas Gleixner:
"Another set of perf updates:
- Fix a Skylake Uncore event format declaration
- Prevent perf pipe mode from crahsing which was caused by a missing
buffer allocation
- Make the perf top popup message which tells the user that it uses
fallback mode on older kernels a debug message.
- Make perf context rescheduling work correcctly
- Robustify the jump error drawing in perf browser mode so it does
not try to create references to NULL initialized offset entries
- Make trigger_on() robust so it does not enable the trigger before
everything is set up correctly to handle it
- Make perf auxtrace respect the --no-itrace option so it does not
try to queue AUX data for decoding.
- Prevent having different number of field separators in CVS output
lines when a counter is not supported.
- Make the perf kallsyms man page usage behave like it does for all
other perf commands.
- Synchronize the kernel headers"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/core: Fix ctx_event_type in ctx_resched()
perf tools: Fix trigger class trigger_on()
perf auxtrace: Prevent decoding when --no-itrace
perf stat: Fix CVS output format for non-supported counters
tools headers: Sync x86's cpufeatures.h
tools headers: Sync copy of kvm UAPI headers
perf record: Fix crash in pipe mode
perf annotate browser: Be more robust when drawing jump arrows
perf top: Fix annoying fallback message on older kernels
perf kallsyms: Fix the usage on the man page
perf/x86/intel/uncore: Fix Skylake UPI event format
Pull locking fix from Thomas Gleixner:
"rt_mutex_futex_unlock() grew a new irq-off call site, but the function
assumes that its always called from irq enabled context.
Use (un)lock_irqsafe() to handle the new call site correctly"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
rtmutex: Make rt_mutex_futex_unlock() safe for irq-off callsites
Two small fixes are for this cycle:
- fix max_chunk_size for rcar-dmac for R-Car Gen3
- fix clock resource of mv_xor_v2
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=RhQT
-----END PGP SIGNATURE-----
Merge tag 'dmaengine-fix-4.16-rc5' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fixes from Vinod Koul:
"Two small fixes are for this cycle:
- fix max_chunk_size for rcar-dmac for R-Car Gen3
- fix clock resource of mv_xor_v2"
* tag 'dmaengine-fix-4.16-rc5' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: mv_xor_v2: Fix clock resource by adding a register clock
dmaengine: rcar-dmac: fix max_chunk_size for R-Car Gen3
Renesas driver, and fixes wakeup from external stuff.
-----BEGIN PGP SIGNATURE-----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=8lyD
-----END PGP SIGNATURE-----
Merge tag 'gpio-v4.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fix from Linus Walleij:
"This is a single GPIO fix for the v4.16 series affecting the Renesas
driver, and fixes wakeup from external stuff"
* tag 'gpio-v4.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: rcar: Use wakeup_path i.s.o. explicit clock handling
On the CP110 components which are present on the Armada 7K/8K SoC we need
to explicitly enable the clock for the registers. However it is not
needed for the AP8xx component, that's why this clock is optional.
With this patch both clock have now a name, but in order to be backward
compatible, the name of the first clock is not used. It allows to still
use this clock with a device tree using the old binding.
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=1Ukr
-----END PGP SIGNATURE-----
Merge tag 'for-linus-20180309' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- a xen-blkfront fix from Bhavesh with a multiqueue fix when
detaching/re-attaching
- a few important NVMe fixes, including a revert for a sysfs fix that
caused some user space confusion
- two bcache fixes by way of Michael Lyle
- a loop regression fix, fixing an issue with lost writes on DAX.
* tag 'for-linus-20180309' of git://git.kernel.dk/linux-block:
loop: Fix lost writes caused by missing flag
nvme_fc: rework sqsize handling
nvme-fabrics: Ignore nr_io_queues option for discovery controllers
xen-blkfront: move negotiate_mq to cover all cases of new VBDs
Revert "nvme: create 'slaves' and 'holders' entries for hidden controllers"
bcache: don't attach backing with duplicate UUID
bcache: fix crashes in duplicate cache device register
nvme: pci: pass max vectors as num_possible_cpus() to pci_alloc_irq_vectors
nvme-pci: Fix EEH failure on ppc
- Fix DM's passthrough ioctl support to be race free against an
underlying device being removed.
- Fix corner-case of DM raid resync reporting if/when the raid becomes
degraded during resync; otherwise automated raid repair will fail.
- A few DM multipath fixes to make non-SCSI optimizations, that were
introduced during the 4.16 merge, useful for all non-SCSI devices,
rather than narrowly define this non-SCSI mode in terms of "nvme".
This allows the removal of "queue_mode nvme" that really didn't need
to be introduced. Instead DM core will internalize whether
nvme-specific IO submission optimizations are doable and DM multipath
will only do SCSI-specific device handler operations if SCSI is in
use.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJaou84AAoJEMUj8QotnQNaYucH/RTlx1kJ4S7dHqUVFQdYZoZM
ngpBGQZrvcjGwiTqpFb5lbvS4eXL5tAJrmIlcP/vD5woP57kK6uaxWbhZTDKlARK
UppM2FwA166szfYLMopA4yPj7o2+aBBF6y6Q9s5kP9UbsNIdBbPGBzz3JhThSu5q
FB6YWhMuEpBwQT2Y5nrz/X5mBVnzjPnvCDeYh3HLihnPeYYZiupR9EVCJ7vRVc+S
S8+oX6Yl9Jc6GWKQriQW+EEQN/9E6YMH4tTPvd8S5hT6uzznePx8myv60qXM894J
f+O9gcna3rF41XIYleUEXbES0kwXZzISeJNo5NokTRIKEmn8fJU+tuvqAGTh/yQ=
=1Ki0
-----END PGP SIGNATURE-----
Merge tag 'for-4.16/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- Fix an uninitialized variable false warning in dm bufio
- Fix DM's passthrough ioctl support to be race free against an
underlying device being removed.
- Fix corner-case of DM raid resync reporting if/when the raid becomes
degraded during resync; otherwise automated raid repair will fail.
- A few DM multipath fixes to make non-SCSI optimizations, that were
introduced during the 4.16 merge, useful for all non-SCSI devices,
rather than narrowly define this non-SCSI mode in terms of "nvme".
This allows the removal of "queue_mode nvme" that really didn't need
to be introduced. Instead DM core will internalize whether
nvme-specific IO submission optimizations are doable and DM multipath
will only do SCSI-specific device handler operations if SCSI is in
use.
* tag 'for-4.16/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm table: allow upgrade from bio-based to specialized bio-based variant
dm mpath: remove unnecessary NVMe branching in favor of scsi_dh checks
dm table: fix "nvme" test
dm raid: fix incorrect sync_ratio when degraded
dm: use blkdev_get rather than bdgrab when issuing pass-through ioctl
dm bufio: avoid false-positive Wmaybe-uninitialized warning
- Various driver bug fixes in mlx5, mlx4, bnxt_re and qedr, ranging
from bugs under load to bad error case handling
- There in one largish patch fixing the locking in bnxt_re to avoid
a machine hard lock situation
- A few core bugs on error paths
- A patch to reduce stack usage in the new CQ API
- One mlx5 regression introduced in this merge window
- There were new syzkaller scripts written for the RDMA subsystem
and we are fixing issues found by the bot
- One of the commits (aa0de36a40 “RDMA/mlx5: Fix integer overflow
while resizing CQ”) is missing part of the commit log message and
one of the SOB lines. The original patch was from Leon Romanovsky,
and a cut-n-paste separator in the commit message confused patchworks
which then put the end of message separator in the wrong place in
the downloaded patch, and I didn’t notice in time. The patch made
it into the official branch, and the only way to fix it in-place
was to rebase. Given the pain that a rebase causes, and the fact
that the patch has relevant tags for stable and syzkaller, a revert
of the munged patch and a reapplication of the original patch with
the log message intact was done.
-----BEGIN PGP SIGNATURE-----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=ZvN0
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Doug Ledford:
- Various driver bug fixes in mlx5, mlx4, bnxt_re and qedr, ranging
from bugs under load to bad error case handling
- There in one largish patch fixing the locking in bnxt_re to avoid a
machine hard lock situation
- A few core bugs on error paths
- A patch to reduce stack usage in the new CQ API
- One mlx5 regression introduced in this merge window
- There were new syzkaller scripts written for the RDMA subsystem and
we are fixing issues found by the bot
- One of the commits (aa0de36a40 “RDMA/mlx5: Fix integer overflow
while resizing CQ”) is missing part of the commit log message and one
of the SOB lines. The original patch was from Leon Romanovsky, and a
cut-n-paste separator in the commit message confused patchworks which
then put the end of message separator in the wrong place in the
downloaded patch, and I didn’t notice in time. The patch made it into
the official branch, and the only way to fix it in-place was to
rebase. Given the pain that a rebase causes, and the fact that the
patch has relevant tags for stable and syzkaller, a revert of the
munged patch and a reapplication of the original patch with the log
message intact was done.
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (25 commits)
RDMA/mlx5: Fix integer overflow while resizing CQ
Revert "RDMA/mlx5: Fix integer overflow while resizing CQ"
RDMA/ucma: Check that user doesn't overflow QP state
RDMA/mlx5: Fix integer overflow while resizing CQ
RDMA/ucma: Limit possible option size
IB/core: Fix possible crash to access NULL netdev
RDMA/bnxt_re: Avoid Hard lockup during error CQE processing
RDMA/core: Reduce poll batch for direct cq polling
IB/mlx5: Fix an error code in __mlx5_ib_modify_qp()
IB/mlx5: When not in dual port RoCE mode, use provided port as native
IB/mlx4: Include GID type when deleting GIDs from HW table under RoCE
IB/mlx4: Fix corruption of RoCEv2 IPv4 GIDs
RDMA/qedr: Fix iWARP write and send with immediate
RDMA/qedr: Fix kernel panic when running fio over NFSoRDMA
RDMA/qedr: Fix iWARP connect with port mapper
RDMA/qedr: Fix ipv6 destination address resolution
IB/core : Add null pointer check in addr_resolve
RDMA/bnxt_re: Fix the ib_reg failure cleanup
RDMA/bnxt_re: Fix incorrect DB offset calculation
RDMA/bnxt_re: Unconditionly fence non wire memory operations
...
Correct a module loading race condition between the DELL_SMBIOS backend
modules and the first user by converting them to bool features of the
DELL_SMBIOS driver. Fixup the resulting Kconfig dependency issue with
DCDBAS.
The following is an automated git shortlog grouped by driver:
- Resolve dependency error on DCDBAS
- Allow for SMBIOS backend defaults
- Link all dell-smbios-* modules together
- Rename dell-smbios source to dell-smbios-base
- Correct some style warnings
-----BEGIN PGP SIGNATURE-----
iQEcBAABAgAGBQJaot3AAAoJEKbMaAwKp364dmgIAIfHTsJK43WBdhiA8t+ZR2eI
vW6gWOmTR0srhybgBFh+yNd0ljH4Ogb/JUrFuF6cemtpWxTJC+KS0gZWbHFw/5w5
OsovY0/8AVtC7IFVe0HH3w3fZwsGGq4H/LU1K580cRF/YYzMVXnr2ASkIqn/EUzS
voeAuL23JYvq+ByAqqKmA3tN7/+YpMrt5MPkJHk/MGnGxspTapcMvEK/fkYSlDWa
MpWuKWqfFMM02sV37zyNQYaU64+5/FtGL/2OwsuMD6OgCism+FS/gPhR1JYLtPbd
GKJoSfWqn2cMnLTA+1V9ya0zvGAwK4AdIoe4Cjg49pITXZneNfw+NzoQUe12Yg4=
=FAX7
-----END PGP SIGNATURE-----
Merge tag 'platform-drivers-x86-v4.16-6' of git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform driver fixes from Darren Hart:
"Correct a module loading race condition between the DELL_SMBIOS
backend modules and the first user by converting them to bool features
of the DELL_SMBIOS driver. Fixup the resulting Kconfig dependency
issue with DCDBAS"
* tag 'platform-drivers-x86-v4.16-6' of git://git.infradead.org/linux-platform-drivers-x86:
platform/x86: dell-smbios: Resolve dependency error on DCDBAS
platform/x86: Allow for SMBIOS backend defaults
platform/x86: dell-smbios: Link all dell-smbios-* modules together
platform/x86: dell-smbios: Rename dell-smbios source to dell-smbios-base
platform/x86: dell-smbios: Correct some style warnings
PPC:
- Fix guest time accounting in the host
- Fix large-page backing for radix guests on POWER9
- Fix HPT guests on POWER9 backed by 2M or 1G pages
- Compile fixes for some configs and gcc versions
s390:
- Fix random memory corruption when running as guest2 (e.g. KVM in
LPAR) and starting guest3 (e.g. nested KVM) with many CPUs
- Export forgotten io interrupt delivery statistics counter
-----BEGIN PGP SIGNATURE-----
iQEcBAABCAAGBQJaoupNAAoJEED/6hsPKofoT2gH/1P6cNF3Gz3T7fetuan5Tyhw
o5zduUxkM2AmTxzim9GPsKc5nsnPMnDraHCpQ9O2WW6VHvRZ6pwgtbtEtF2cx2Hv
70o5gQzap/odA8eoV98xRbZ+aZHrZgs/z2Ql5eXk32BIs57TOQZVQ/mW+BA4Ixos
8lOLYXuNY0lSL7Cp0MBY76ed8100ZTp7sfFByg3AmWDy7qhYOk9C3wPYNqPNfkuB
eqZ9XPKV3vJuqc2xSJvsW4DjBcqZTxqDbw+EOA3MuUMH/JRkt7OuPgQHl/G5BqAW
JcLb8ENfXNbamiakvarVenvnAJKJTLs8s9K8Z8ADXolY6NlGysGcrJo5dnGWN5A=
=UxpG
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Radim Krčmář:
"PPC:
- Fix guest time accounting in the host
- Fix large-page backing for radix guests on POWER9
- Fix HPT guests on POWER9 backed by 2M or 1G pages
- Compile fixes for some configs and gcc versions
s390:
- Fix random memory corruption when running as guest2 (e.g. KVM in
LPAR) and starting guest3 (e.g. nested KVM) with many CPUs
- Export forgotten io interrupt delivery statistics counter"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: s390: fix memory overwrites when not using SCA entries
KVM: PPC: Book3S HV: Fix guest time accounting with VIRT_CPU_ACCOUNTING_GEN
KVM: PPC: Book3S HV: Fix VRMA initialization with 2MB or 1GB memory backing
KVM: PPC: Book3S HV: Fix handling of large pages in radix page fault handler
KVM: s390: provide io interrupt kvm_stat
KVM: PPC: Book3S: Fix compile error that occurs with some gcc versions
KVM: PPC: Fix compile error that occurs when CONFIG_ALTIVEC=n
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iQEcBAABAgAGBQJaotGdAAoJELDendYovxMvzPoIAJ/wdIyikhIl4gFRY3dNJUfk
iPfqmzc5y6zqVMYOHXy4aM1WsNqSJjzHQPNQQ/EgPC6EwvqnbRKTA1Z+06t8idtx
RsjmQaiXUo+Rdo0QnuFUEZYwrec74GasujsnLy/CJcJOK6bULyoCETDluU6cXUJ1
VcETKTselFPb19Hah6SNOkKn00J6ZYLddpF9RcYEpbln7cAzWKTvd0B/kNW24ToM
OkH4m0qO0OzNHxLO31ZG2H/C8VukscQO7PTdcECenjkXnyztfkoLzCJswd7hGIDE
JmQJgWKALZfPtwqFztC1bu7Y0N+aOxChggaXxKPlytmfs083EGFZ8H5SYZnhugs=
=mXIM
-----END PGP SIGNATURE-----
Merge tag 'for-linus-4.16a-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fix from Juergen Gross:
"Just one fix for the correct error handling after a failed
device_register()"
* tag 'for-linus-4.16a-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: xenbus: use put_device() instead of kfree()
- The SMCCC firmware interface for the spectre variant 2 mitigation has
been updated to allow the discovery of whether the CPU needs the
workaround. This pull request relaxes the kernel check on the return
value from firmware.
- Fix the commit allowing changing from global to non-global page table
entries which inadvertently disallowed other safe attribute changes.
- Fix sleeping in atomic during the arm_perf_teardown_cpu() code.
-----BEGIN PGP SIGNATURE-----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=jVvu
-----END PGP SIGNATURE-----
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- The SMCCC firmware interface for the spectre variant 2 mitigation has
been updated to allow the discovery of whether the CPU needs the
workaround. This pull request relaxes the kernel check on the return
value from firmware.
- Fix the commit allowing changing from global to non-global page table
entries which inadvertently disallowed other safe attribute changes.
- Fix sleeping in atomic during the arm_perf_teardown_cpu() code.
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Relax ARM_SMCCC_ARCH_WORKAROUND_1 discovery
arm_pmu: Use disable_irq_nosync when disabling SPI in CPU teardown hook
arm64: mm: fix thinko in non-global page table attribute check
our fault. This is a single fix cherry-picked from docs-next that restores
docs buildability for all supported Sphinx versions.
-----BEGIN PGP SIGNATURE-----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=SAyC
-----END PGP SIGNATURE-----
Merge tag 'docs-4.16-fix' of git://git.lwn.net/linux
Pull Documentation build fix from Jonathan Corbet:
"The Sphinx 1.7 release broke the build process for reasons that are
mostly our fault.
This is a single fix cherry-picked from docs-next that restores docs
buildability for all supported Sphinx versions"
* tag 'docs-4.16-fix' of git://git.lwn.net/linux:
Documentation/sphinx: Fix Directive import error
Merge misc fixes from Andrew Morton:
"8 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
lib/test_kmod.c: fix limit check on number of test devices created
selftests/vm/run_vmtests: adjust hugetlb size according to nr_cpus
mm/page_alloc: fix memmap_init_zone pageblock alignment
mm/memblock.c: hardcode the end_pfn being -1
mm/gup.c: teach get_user_pages_unlocked to handle FOLL_NOWAIT
lib/bug.c: exclude non-BUG/WARN exceptions from report_bug()
bug: use %pB in BUG and stack protector failure
hugetlb: fix surplus pages accounting
As reported by Dan the parentheses is in the wrong place, and since
unlikely() call returns either 0 or 1 it's never less than zero. The
second issue is that signed integer overflows like "INT_MAX + 1" are
undefined behavior.
Since num_test_devs represents the number of devices, we want to stop
prior to hitting the max, and not rely on the wrap arround at all. So
just cap at num_test_devs + 1, prior to assigning a new device.
Link: http://lkml.kernel.org/r/20180224030046.24238-1-mcgrof@kernel.org
Fixes: d9c6a72d6f ("kmod: add test driver to stress test the module loader")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix userfaultfd_hugetlb on hosts which have more than 64 cpus.
---------------------------
running userfaultfd_hugetlb
---------------------------
invalid MiB
Usage: <MiB> <bounces>
[FAIL]
Via userfaultfd.c we can know, hugetlb_size needs to meet hugetlb_size
>= nr_cpus * hugepage_size. hugepage_size is often 2M, so when host
cpus > 64, it requires more than 128M.
[zhijianx.li@intel.com: update changelog/comments and variable name]
Link: http://lkml.kernel.org/r/20180302024356.83359-1-zhijianx.li@intel.com
Link: http://lkml.kernel.org/r/20180303125027.81638-1-zhijianx.li@intel.com
Link: http://lkml.kernel.org/r/20180302024356.83359-1-zhijianx.li@intel.com
Signed-off-by: Li Zhijian <zhijianx.li@intel.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: SeongJae Park <sj38.park@gmail.com>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
