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The fixes for this round are in drivers:
- jz4780 transfer fix for acking descriptors early
- fsl-qdma: clean registers on error
- dw-axi-dmac: null pointer dereference fix
- mediatek-cqdma: fix sleeping in atomic context
- tegra210-adma: fix bunch os issues like crashing in driver
probe, channel FIFO configuration etc.
- sprd: Fixes for possible crash on descriptor status, block
length overflow. For 2-stage transfer fix incorrect start,
configuration and interrupt handling.
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Merge tag 'dmaengine-fix-5.2-rc4' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fixes from Vinod Koul:
- jz4780 transfer fix for acking descriptors early
- fsl-qdma: clean registers on error
- dw-axi-dmac: null pointer dereference fix
- mediatek-cqdma: fix sleeping in atomic context
- tegra210-adma: fix bunch os issues like crashing in driver probe,
channel FIFO configuration etc.
- sprd: Fixes for possible crash on descriptor status, block length
overflow. For 2-stage transfer fix incorrect start, configuration and
interrupt handling.
* tag 'dmaengine-fix-5.2-rc4' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: sprd: Add interrupt support for 2-stage transfer
dmaengine: sprd: Fix the right place to configure 2-stage transfer
dmaengine: sprd: Fix block length overflow
dmaengine: sprd: Fix the incorrect start for 2-stage destination channels
dmaengine: sprd: Add validation of current descriptor in irq handler
dmaengine: sprd: Fix the possible crash when getting descriptor status
dmaengine: tegra210-adma: Fix spelling
dmaengine: tegra210-adma: Fix channel FIFO configuration
dmaengine: tegra210-adma: Fix crash during probe
dmaengine: mediatek-cqdma: sleeping in atomic context
dmaengine: dw-axi-dmac: fix null dereference when pointer first is null
dmaengine: fsl-qdma: Add improvement
dmaengine: jz4780: Fix transfers being ACKed too soon
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Merge tag 'for-linus-20190608' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- Allow symlink from the bfq.weight cgroup parameter to the general
weight (Angelo)
- Damien is new skd maintainer (Bart)
- NVMe pull request from Sagi, with a few small fixes.
- Ensure we set DMA segment size properly, dma-debug is now tripping on
these (Christoph)
- Remove useless debugfs_create() return check (Greg)
- Remove redundant unlikely() check on IS_ERR() (Kefeng)
- Fixup request freeing on exit (Ming)
* tag 'for-linus-20190608' of git://git.kernel.dk/linux-block:
block, bfq: add weight symlink to the bfq.weight cgroup parameter
cgroup: let a symlink too be created with a cftype file
block: free sched's request pool in blk_cleanup_queue
nvme-rdma: use dynamic dma mapping per command
nvme: Fix u32 overflow in the number of namespace list calculation
mmc: also set max_segment_size in the device
mtip32xx: also set max_segment_size in the device
rsxx: don't call dma_set_max_seg_size
nvme-pci: don't limit DMA segement size
block: Drop unlikely before IS_ERR(_OR_NULL)
block: aoe: no need to check return value of debugfs_create functions
nvmet: fix data_len to 0 for bdev-backed write_zeroes
MAINTAINERS: Hand over skd maintainership
nvme-tcp: fix queue mapping when queue count is limited
nvme-rdma: fix queue mapping when queue count is limited
Two bug fixes, both for fairly serious problems; the UFS one looks
like it could be used to exfiltrate data from the kernel, although
probably only a privileged user has access to the command management
interface and the missing unlock in smartpqi is long standing and
probably a little used error path.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Two bug fixes, both for fairly serious problems; the UFS one looks
like it could be used to exfiltrate data from the kernel, although
probably only a privileged user has access to the command management
interface and the missing unlock in smartpqi is long standing and
probably a little used error path"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: smartpqi: unlock on error in pqi_submit_raid_request_synchronous()
scsi: ufs: Check that space was properly alloced in copy_query_response
This Kselftest second fixes update for Linux 5.2-rc4 consists of a single
fix for vm test build failure regression when it is built by itself.
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Merge tag 'linux-kselftest-5.2-rc4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fix from Shuah Khan:
"This consists of a single fix for a vm test build failure regression
when it is built by itself"
* tag 'linux-kselftest-5.2-rc4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests: vm: Fix test build failure when built by itself
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Merge tag 'drm-fixes-2019-06-07-1' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"A small bit more lively this week but not majorly so. I'm away in
Japan next week for family holiday, so I'll be pretty disconnected,
I've asked Daniel to do fixes for the week while I'm out.
The nouveau firmware changes are a bit large, but they address a big
problem where a whole set of boards don't load with the driver, and
the new firmware fixes that, so I think it's worth trying to land it
now.
core:
- Allow fb changes in async commits (drivers as well)
udmabuf:
- Unmap scatterlist when unmapping udmabuf
nouveau:
- firmware loading fixes for secboot firmware on new GPU revision.
komeda:
- oops, dma mapping and warning fixes
arm-hdlcd:
- clock fixes
- mode validation fix
i915:
- Add a missing Icelake workaround
- GVT - DMA map fault fix and enforcement fixes
amdgpu:
- DCE resume fix
- New raven variation updates"
* tag 'drm-fixes-2019-06-07-1' of git://anongit.freedesktop.org/drm/drm: (33 commits)
drm/nouveau/secboot/gp10[2467]: support newer FW to fix SEC2 failures on some boards
drm/nouveau/secboot: enable loading of versioned LS PMU/SEC2 ACR msgqueue FW
drm/nouveau/secboot: split out FW version-specific LS function pointers
drm/nouveau/secboot: pass max supported FW version to LS load funcs
drm/nouveau/core: support versioned firmware loading
drm/nouveau/core: pass subdev into nvkm_firmware_get, rather than device
drm/komeda: Potential error pointer dereference
drm/komeda: remove set but not used variable 'kcrtc'
drm/amd/amdgpu: add RLC firmware to support raven1 refresh
drm/amd/powerplay: add set_power_profile_mode for raven1_refresh
drm/amdgpu: fix ring test failure issue during s3 in vce 3.0 (V2)
udmabuf: actually unmap the scatterlist
drm/arm/hdlcd: Allow a bit of clock tolerance
drm/arm/hdlcd: Actually validate CRTC modes
drm/arm/mali-dp: Add a loop around the second set CVAL and try 5 times
drm/komeda: fixing of DMA mapping sg segment warning
drm: don't block fb changes for async plane updates
drm/vc4: fix fb references in async update
drm/msm: fix fb references in async update
drm/amd: fix fb references in async update
...
Fix a couple of inconsistencies and locking problems in pmbus driver.
Register with thermal subsystem only on systems supporting devicetree.
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Merge tag 'hwmon-for-v5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- Fix a couple of inconsistencies and locking problems in pmbus driver
- Register with thermal subsystem only on systems supporting devicetree
* tag 'hwmon-for-v5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (pmbus/core) Treat parameters as paged if on multiple pages
hwmon: (pmbus/core) mutex_lock write in pmbus_set_samples
hwmon: (core) add thermal sensors only if dev->of_node is present
The lockref cmpxchg loop is unbound as long as the spinlock is not
taken. Depending on the hardware implementation of compare-and-swap
a high number of loop retries might happen.
Add an upper bound to the loop to force the fallback to spinlocks
after some time. A retry value of 100 should not impact any hardware
that does not have this issue.
With the retry limit the performance of an open-close testcase
improved between 60-70% on ThunderX2.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Jan Glauber <jglauber@marvell.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Architectures that support memory tagging have a need to perform untagging
(stripping the tag) in various parts of the kernel. This patch adds an
untagged_addr() macro, which is defined as noop for architectures that do
not support memory tagging. The oncoming patch series will define it at
least for sparc64 and arm64.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Khalid Aziz <khalid.aziz@oracle.com>
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- fix section mismatch between memblock_reserve and mem_reserve. This
fixes tinyconfig xtensa builds.
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Merge tag 'xtensa-20190607' of git://github.com/jcmvbkbc/linux-xtensa
Pull xtensa fix from Max Filippov:
"Fix a section mismatch between memblock_reserve and mem_reserve.
This fixes tinyconfig xtensa builds"
* tag 'xtensa-20190607' of git://github.com/jcmvbkbc/linux-xtensa:
xtensa: Fix section mismatch between memblock_reserve and mem_reserve
Pull NVMe fixes from Sagi.
* 'nvme-5.2-rc-next' of git://git.infradead.org/nvme:
nvme-rdma: use dynamic dma mapping per command
nvme: Fix u32 overflow in the number of namespace list calculation
nvmet: fix data_len to 0 for bdev-backed write_zeroes
nvme-tcp: fix queue mapping when queue count is limited
nvme-rdma: fix queue mapping when queue count is limited
- fix kselftest-merge to find config fragments in deeper directories
- fix kconfig unit test, which was broken by SPDX tag addition
- add + prefix to buildtar to suppress jobserver unavailable warning
- fix checkstack.pl to recognize arch=arm64
- suppress noisy warning from cc-cross-prefix
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Merge tag 'kbuild-fixes-v5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild fixes from Masahiro Yamada:
- fix kselftest-merge to find config fragments in deeper directories
- fix kconfig unit test, which was broken by SPDX tag addition
- add + prefix to buildtar to suppress jobserver unavailable warning
- fix checkstack.pl to recognize arch=arm64
- suppress noisy warning from cc-cross-prefix
* tag 'kbuild-fixes-v5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: use more portable 'command -v' for cc-cross-prefix
scripts/checkstack.pl: Fix arm64 wrong or unknown architecture
kbuild: tar-pkg: enable communication with jobserver
kconfig: tests: fix recursive inclusion unit test
kbuild: teach kselftest-merge to find nested config files
- Fix a crash that occurs when a kernel with 'nosmt' in the command
line is used to resume the system from hibernation (as the "restore"
kernel), because memory mapping differences between the restore and
image kernels cause SMT siblings to be woken up from idle states
and subsequently they try to fetch instructions from incorrect
memory locations (Jiri Kosina).
- Cause the new Performance and Energy Bias Hint (EPB) code to be
built only if CONFIG_PM is set, because that code is not really
necessary otherwise (Rafael Wysocki).
- Add kerneldoc comments to documents some helper functions related
to system-wide suspend to avoid possible confusion regarding their
purpose (Rafael Wysocki).
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Merge tag 'pm-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix a crash during resume from hibernation introduced during the
4.19 cycle, cause the new Performance and Energy Bias Hint (EPB) code
to be built only if CONFIG_PM is set and add a few missing kerneldoc
comments.
Specifics:
- Fix a crash that occurs when a kernel with 'nosmt' in the command
line is used to resume the system from hibernation (as the
"restore" kernel), because memory mapping differences between the
restore and image kernels cause SMT siblings to be woken up from
idle states and subsequently they try to fetch instructions from
incorrect memory locations (Jiri Kosina).
- Cause the new Performance and Energy Bias Hint (EPB) code to be
built only if CONFIG_PM is set, because that code is not really
necessary otherwise (Rafael Wysocki).
- Add kerneldoc comments to documents some helper functions related
to system-wide suspend to avoid possible confusion regarding their
purpose (Rafael Wysocki)"
* tag 'pm-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
x86/power: Fix 'nosmt' vs hibernation triple fault during resume
PM: sleep: Add kerneldoc comments to some functions
x86: intel_epb: Do not build when CONFIG_PM is unset
get_desc() computes a pointer into the LDT while holding a lock that
protects the LDT from being freed, but then drops the lock and returns the
(now potentially dangling) pointer to its caller.
Fix it by giving the caller a copy of the LDT entry instead.
Fixes: 670f928ba0 ("x86/insn-eval: Add utility function to get segment descriptor")
Cc: stable@vger.kernel.org
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull networking fixes from David Miller:
1) Free AF_PACKET po->rollover properly, from Willem de Bruijn.
2) Read SFP eeprom in max 16 byte increments to avoid problems with
some SFP modules, from Russell King.
3) Fix UDP socket lookup wrt. VRF, from Tim Beale.
4) Handle route invalidation properly in s390 qeth driver, from Julian
Wiedmann.
5) Memory leak on unload in RDS, from Zhu Yanjun.
6) sctp_process_init leak, from Neil HOrman.
7) Fix fib_rules rule insertion semantic change that broke Android,
from Hangbin Liu.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (33 commits)
pktgen: do not sleep with the thread lock held.
net: mvpp2: Use strscpy to handle stat strings
net: rds: fix memory leak in rds_ib_flush_mr_pool
ipv6: fix EFAULT on sendto with icmpv6 and hdrincl
ipv6: use READ_ONCE() for inet->hdrincl as in ipv4
Revert "fib_rules: return 0 directly if an exactly same rule exists when NLM_F_EXCL not supplied"
net: aquantia: fix wol configuration not applied sometimes
ethtool: fix potential userspace buffer overflow
Fix memory leak in sctp_process_init
net: rds: fix memory leak when unload rds_rdma
ipv6: fix the check before getting the cookie in rt6_get_cookie
ipv4: not do cache for local delivery if bc_forwarding is enabled
s390/qeth: handle error when updating TX queue count
s390/qeth: fix VLAN attribute in bridge_hostnotify udev event
s390/qeth: check dst entry before use
s390/qeth: handle limited IPv4 broadcast in L3 TX path
net: fix indirect calls helpers for ptype list hooks.
net: ipvlan: Fix ipvlan device tso disabled while NETIF_F_IP_CSUM is set
udp: only choose unbound UDP socket for multicast when not in a VRF
net/tls: replace the sleeping lock around RX resync with a bit lock
...
The usual driver bug fixes and fixes for a couple of regressions introduced in
5.2:
- Fix a race on bootup with RDMA device renaming and srp. SRP also needs to
rename its internal sys files
- Fix a memory leak in hns
- Don't leak resources in efa on certain error unwinds
- Don't panic in certain error unwinds in ib_register_device
- Various small user visible bug fix patches for the hfi and efa drivers
- Fix the 32 bit compilation break
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
"Things are looking pretty quiet here in RDMA, not too many bug fixes
rolling in right now. The usual driver bug fixes and fixes for a
couple of regressions introduced in 5.2:
- Fix a race on bootup with RDMA device renaming and srp. SRP also
needs to rename its internal sys files
- Fix a memory leak in hns
- Don't leak resources in efa on certain error unwinds
- Don't panic in certain error unwinds in ib_register_device
- Various small user visible bug fix patches for the hfi and efa
drivers
- Fix the 32 bit compilation break"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/efa: Remove MAYEXEC flag check from mmap flow
mlx5: avoid 64-bit division
IB/hfi1: Validate page aligned for a given virtual address
IB/{qib, hfi1, rdmavt}: Correct ibv_devinfo max_mr value
IB/hfi1: Insure freeze_work work_struct is canceled on shutdown
IB/rdmavt: Fix alloc_qpn() WARN_ON()
RDMA/core: Fix panic when port_data isn't initialized
RDMA/uverbs: Pass udata on uverbs error unwind
RDMA/core: Clear out the udata before error unwind
RDMA/hns: Fix PD memory leak for internal allocation
RDMA/srp: Rename SRP sysfs name after IB device rename trigger
- Fix boot crash on platforms with SVE2 due to missing register encoding
- Fix architected timer accessors when CONFIG_OPTIMIZE_INLINING=y
- Move cpu_logical_map into smp.h for use by upcoming irqchip drivers
- Trivial typo fix in comment
- Disable some useless, noisy warnings from GCC 9
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Another round of mostly-benign fixes, the exception being a boot crash
on SVE2-capable CPUs (although I don't know where you'd find such a
thing, so maybe it's benign too).
We're in the process of resolving some big-endian ptrace breakage, so
I'll probably have some more for you next week.
Summary:
- Fix boot crash on platforms with SVE2 due to missing register
encoding
- Fix architected timer accessors when CONFIG_OPTIMIZE_INLINING=y
- Move cpu_logical_map into smp.h for use by upcoming irqchip drivers
- Trivial typo fix in comment
- Disable some useless, noisy warnings from GCC 9"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Silence gcc warnings about arch ABI drift
ARM64: trivial: s/TIF_SECOMP/TIF_SECCOMP/ comment typo fix
arm64: arch_timer: mark functions as __always_inline
arm64: smp: Moved cpu_logical_map[] to smp.h
arm64: cpufeature: Fix missing ZFR0 in __read_sysreg_by_encoding()
To print the pathname that will be used by shell in the current
environment, 'command -v' is a standardized way. [1]
'which' is also often used in scripts, but it is less portable.
When I worked on commit bd55f96fa9 ("kbuild: refactor cc-cross-prefix
implementation"), I was eager to use 'command -v' but it did not work.
(The reason is explained below.)
I kept 'which' as before but got rid of '> /dev/null 2>&1' as I
thought it was no longer needed. Sorry, I was wrong.
It works well on my Ubuntu machine, but Alexey Brodkin reports noisy
warnings on CentOS7 when 'which' fails to find the given command in
the PATH environment.
$ which foo
which: no foo in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin)
Given that behavior of 'which' depends on system (and it may not be
installed by default), I want to try 'command -v' once again.
The specification [1] clearly describes the behavior of 'command -v'
when the given command is not found:
Otherwise, no output shall be written and the exit status shall reflect
that the name was not found.
However, we need a little magic to use 'command -v' from Make.
$(shell ...) passes the argument to a subshell for execution, and
returns the standard output of the command.
Here is a trick. GNU Make may optimize this by executing the command
directly instead of forking a subshell, if no shell special characters
are found in the command and omitting the subshell will not change the
behavior.
In this case, no shell special character is used. So, Make will try
to run it directly. However, 'command' is a shell-builtin command,
then Make would fail to find it in the PATH environment:
$ make ARCH=m68k defconfig
make: command: Command not found
make: command: Command not found
make: command: Command not found
In fact, Make has a table of shell-builtin commands because it must
ask the shell to execute them.
Until recently, 'command' was missing in the table.
This issue was fixed by the following commit:
| commit 1af314465e5dfe3e8baa839a32a72e83c04f26ef
| Author: Paul Smith <psmith@gnu.org>
| Date: Sun Nov 12 18:10:28 2017 -0500
|
| * job.c: Add "command" as a known shell built-in.
|
| This is not a POSIX shell built-in but it's common in UNIX shells.
| Reported by Nick Bowler <nbowler@draconx.ca>.
Because the latest release is GNU Make 4.2.1 in 2016, this commit is
not included in any released versions. (But some distributions may
have back-ported it.)
We need to trick Make to spawn a subshell. There are various ways to
do so:
1) Use a shell special character '~' as dummy
$(shell : ~; command -v $(c)gcc)
2) Use a variable reference that always expands to the empty string
(suggested by David Laight)
$(shell command$${x:+} -v $(c)gcc)
3) Use redirect
$(shell command -v $(c)gcc 2>/dev/null)
I chose 3) to not confuse people. The stderr would not be polluted
anyway, but it will provide extra safety, and is easy to understand.
Tested on Make 3.81, 3.82, 4.0, 4.1, 4.2, 4.2.1
[1] http://pubs.opengroup.org/onlinepubs/9699919799/utilities/command.html
Fixes: bd55f96fa9 ("kbuild: refactor cc-cross-prefix implementation")
Cc: linux-stable <stable@vger.kernel.org> # 5.1
Reported-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Alexey Brodkin <abrodkin@synopsys.com>
Many userspace tools and services use the proportional-share policy of
the blkio/io cgroups controller. The CFQ I/O scheduler implemented
this policy for the legacy block layer. To modify the weight of a
group in case CFQ was in charge, the 'weight' parameter of the group
must be modified. On the other hand, the BFQ I/O scheduler implements
the same policy in blk-mq, but, with BFQ, the parameter to modify has
a different name: bfq.weight (forced choice until legacy block was
present, because two different policies cannot share a common parameter
in cgroups).
Due to CFQ legacy, most if not all userspace configurations still use
the parameter 'weight', and for the moment do not seem likely to be
changed. But, when CFQ went away with legacy block, such a parameter
ceased to exist.
So, a simple workaround has been proposed [1] to make all
configurations work: add a symlink, named weight, to bfq.weight. This
commit adds such a symlink.
[1] https://lkml.org/lkml/2019/4/8/555
Suggested-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Angelo Ruocco <angeloruocco90@gmail.com>
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit enables a cftype to have a symlink (of any name) that
points to the file associated with the cftype.
Signed-off-by: Angelo Ruocco <angeloruocco90@gmail.com>
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
" This is a bit more than I'd like to be pushing at this point in a
cycle, but it's a fairly important issue. There's been numerous
reports of more recent GP10[2467] boards failing to load, and I've
worked with NVIDIA FW engineers and tracked this down to the FW we've
been using not properly supporting the boards in question.
I've pushed an update to linux-firmware with the new FW version, which
unfortunately contains API changes vs the older firmware.
This series teaches the ACR subsystem inside nouveau enough to be able
to deal with supporting multiple incompatible FW revisions, and adds
support to the relevant chipsets for loading the newer FW revision, if
it's available."
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Ben Skeggs <skeggsb@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CACAvsv7pG+vur0Kn_TyU3ainnkvJVw07upnnaQNOToF+kzQtDQ@mail.gmail.com
Some newer boards with these chipsets aren't compatible with the prior
version of the SEC2 FW, and fail to load as a result.
This newer FW is actually the one we already use on >=GP108.
Unfortunately, there are interface differences in GP108's FW, making it
impossible to simply move files around in linux-firmware to solve this.
We need to be able to keep compatibility with all linux-firmware/kernel
combinations, which means supporting both firmwares.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
It's not enough to have per-falcon structures anymore, we have multiple
versions of some firmware now that have interface differences.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Will be passed to the FW loader function as an upper bound on the supported
FW version to attempt to load.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
We have a need for this now with updated SEC2 LS FW images that have an
incompatible interface from the previous version.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
In theory, IO scheduler belongs to request queue, and the request pool
of sched tags belongs to the request queue too.
However, the current tags allocation interfaces are re-used for both
driver tags and sched tags, and driver tags is definitely host wide,
and doesn't belong to any request queue, same with its request pool.
So we need tagset instance for freeing request of sched tags.
Meantime, blk_mq_free_tag_set() often follows blk_cleanup_queue() in case
of non-BLK_MQ_F_TAG_SHARED, this way requires that request pool of sched
tags to be freed before calling blk_mq_free_tag_set().
Commit 47cdee29ef ("block: move blk_exit_queue into __blk_release_queue")
moves blk_exit_queue into __blk_release_queue for simplying the fast
path in generic_make_request(), then causes oops during freeing requests
of sched tags in __blk_release_queue().
Fix the above issue by move freeing request pool of sched tags into
blk_cleanup_queue(), this way is safe becasue queue has been frozen and no any
in-queue requests at that time. Freeing sched tags has to be kept in queue's
release handler becasue there might be un-completed dispatch activity
which might refer to sched tags.
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Christoph Hellwig <hch@lst.de>
Fixes: 47cdee29ef ("block: move blk_exit_queue into __blk_release_queue")
Tested-by: Yi Zhang <yi.zhang@redhat.com>
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Pull parisc fixes from Helge Deller:
- Fix crashes when accessing PCI devices on some machines like C240 and
J5000. The crashes were triggered because we replaced cache flushes
by nops in the alternative coding where we shouldn't for some
machines.
- Dave fixed a race in the usage of the sr1 space register when used to
load the coherence index.
- Use the hardware lpa instruction to to load the physical address of
kernel virtual addresses in the iommu driver code.
- The kernel may fail to link when CONFIG_MLONGCALLS isn't set. Solve
that by rearranging functions in the final vmlinux executeable.
- Some defconfig cleanups and removal of compiler warnings.
* 'parisc-5.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Fix crash due alternative coding for NP iopdir_fdc bit
parisc: Use lpa instruction to load physical addresses in driver code
parisc: configs: Remove useless UEVENT_HELPER_PATH
parisc: Use implicit space register selection for loading the coherence index of I/O pdirs
parisc: Fix compiler warnings in float emulation code
parisc/slab: cleanup after /proc/slab_allocators removal
parisc: Allow building 64-bit kernel without -mlong-calls compiler option
parisc: Kconfig: remove ARCH_DISCARD_MEMBLOCK
Pull crypto fixes from Herbert Xu:
"This fixes a regression that breaks the jitterentropy RNG and a
potential memory leak in hmac"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: hmac - fix memory leak in hmac_init_tfm()
crypto: jitterentropy - change back to module_init()
- Fix some forgotten strings in a log debugging function
- Fix incorrect unit conversion in online fsck code
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Merge tag 'xfs-5.2-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong:
"Here are a couple more bug fixes for 5.2. Changes since last update:
- Fix some forgotten strings in a log debugging function
- Fix incorrect unit conversion in online fsck code"
* tag 'xfs-5.2-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: inode btree scrubber should calculate im_boffset correctly
xfs: fix broken log reservation debugging
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Merge tag 'gfs2-v5.2.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 fix from Andreas Gruenbacher:
"A revert for a patch that turned out to be broken"
* tag 'gfs2-v5.2.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
Revert "gfs2: Replace gl_revokes with a GLF flag"
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Merge tag 'ovl-fixes-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull overlayfs fixes from Miklos Szeredi:
"Here's one fix for a class of bugs triggered by syzcaller, and one
that makes xfstests fail less"
* tag 'ovl-fixes-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: doc: add non-standard corner cases
ovl: detect overlapping layers
ovl: support the FS_IOC_FS[SG]ETXATTR ioctls
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Merge tag 'fuse-fixes-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse fixes from Miklos Szeredi:
"This fixes a leaked inode lock in an error cleanup path and a data
consistency issue with copy_file_range().
It also adds a new flag for the WRITE request that allows userspace
filesystems to clear suid/sgid bits on the file if necessary"
* tag 'fuse-fixes-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: extract helper for range writeback
fuse: fix copy_file_range() in the writeback case
fuse: add FUSE_WRITE_KILL_PRIV
fuse: fallocate: fix return with locked inode
Stable bugfixes:
- SUNRPC: Fix regression in umount of a secure mount
- SUNRPC: Fix a use after free when a server rejects the RPCSEC_GSS credential
- NFSv4.1: Again fix a race where CB_NOTIFY_LOCK fails to wake a waiter
- NFSv4.1: Fix bug only first CB_NOTIFY_LOCK is handled
Other bugfixes:
- xprtrdma: Use struct_size() in kzalloc()
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Merge tag 'nfs-for-5.2-2' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client fixes from Anna Schumaker:
"These are mostly stable bugfixes found during testing, many during the
recent NFS bake-a-thon.
Stable bugfixes:
- SUNRPC: Fix regression in umount of a secure mount
- SUNRPC: Fix a use after free when a server rejects the RPCSEC_GSS credential
- NFSv4.1: Again fix a race where CB_NOTIFY_LOCK fails to wake a waiter
- NFSv4.1: Fix bug only first CB_NOTIFY_LOCK is handled
Other bugfixes:
- xprtrdma: Use struct_size() in kzalloc()"
* tag 'nfs-for-5.2-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFSv4.1: Fix bug only first CB_NOTIFY_LOCK is handled
NFSv4.1: Again fix a race where CB_NOTIFY_LOCK fails to wake a waiter
SUNRPC: Fix a use after free when a server rejects the RPCSEC_GSS credential
SUNRPC fix regression in umount of a secure mount
xprtrdma: Use struct_size() in kzalloc()
Currently, the process issuing a "start" command on the pktgen procfs
interface, acquires the pktgen thread lock and never release it, until
all pktgen threads are completed. The above can blocks indefinitely any
other pktgen command and any (even unrelated) netdevice removal - as
the pktgen netdev notifier acquires the same lock.
The issue is demonstrated by the following script, reported by Matteo:
ip -b - <<'EOF'
link add type dummy
link add type veth
link set dummy0 up
EOF
modprobe pktgen
echo reset >/proc/net/pktgen/pgctrl
{
echo rem_device_all
echo add_device dummy0
} >/proc/net/pktgen/kpktgend_0
echo count 0 >/proc/net/pktgen/dummy0
echo start >/proc/net/pktgen/pgctrl &
sleep 1
rmmod veth
Fix the above releasing the thread lock around the sleep call.
Additionally we must prevent racing with forcefull rmmod - as the
thread lock no more protects from them. Instead, acquire a self-reference
before waiting for any thread. As a side effect, running
rmmod pktgen
while some thread is running now fails with "module in use" error,
before this patch such command hanged indefinitely.
Note: the issue predates the commit reported in the fixes tag, but
this fix can't be applied before the mentioned commit.
v1 -> v2:
- no need to check for thread existence after flipping the lock,
pktgen threads are freed only at net exit time
-
Fixes: 6146e6a43b ("[PKTGEN]: Removes thread_{un,}lock() macros.")
Reported-and-tested-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
with fixes for adfs:
- factor out filename comparison, so we can be sure that adfs_compare()
(used for namei compare) and adfs_match() (used for lookup) have the
same behaviour.
- factor out filename lowering (which is not the same as tolower() which
will lower top-bit-set characters) to ensure that we have the same
behaviour when comparing filenames as when we hash them.
- factor out the object fixups, so we are applying all fixups to
directory objects in the same way, independent of the disk format.
- factor out the object name fixup (into the previously factored out
function) to ensure that filenames are appropriately translated -
for example, adfs allows '/' in filenames, which being the Unix path
separator, need to be translated to a different character, which is
normally '.' (DOS 8.3 filenames represent the . as a / on adfs, so
this is the expected reverse translation.)
- remove filename truncation; Al asked about this and apparently the
decision is to remove it. In any case, adfs's truncation was buggy,
so this rids us of that bug by removing the truncation feature.
- we now have only one location which adds the "filetype" suffix to the
filename, so there's no point that code being out of line.
- since we translate '/' into '.', an adfs filename of "/" or "//" would
end up being translated to "." and ".." which have special meanings.
In this case, change the first character to "^" to avoid these special
directory names being abused.
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Merge tag 'for-rc-adfs' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ADFS cleanups/fixes from Russell King:
"As a result of some of Al Viro's great work, here are a few cleanups
with fixes for adfs:
- factor out filename comparison, so we can be sure that
adfs_compare() (used for namei compare) and adfs_match() (used for
lookup) have the same behaviour.
- factor out filename lowering (which is not the same as tolower()
which will lower top-bit-set characters) to ensure that we have the
same behaviour when comparing filenames as when we hash them.
- factor out the object fixups, so we are applying all fixups to
directory objects in the same way, independent of the disk format.
- factor out the object name fixup (into the previously factored out
function) to ensure that filenames are appropriately translated -
for example, adfs allows '/' in filenames, which being the Unix
path separator, need to be translated to a different character,
which is normally '.' (DOS 8.3 filenames represent the . as a / on
adfs, so this is the expected reverse translation.)
- remove filename truncation; Al asked about this and apparently the
decision is to remove it. In any case, adfs's truncation was buggy,
so this rids us of that bug by removing the truncation feature.
- we now have only one location which adds the "filetype" suffix to
the filename, so there's no point that code being out of line.
- since we translate '/' into '.', an adfs filename of "/" or "//"
would end up being translated to "." and ".." which have special
meanings. In this case, change the first character to "^" to avoid
these special directory names being abused"
* tag 'for-rc-adfs' of git://git.armlinux.org.uk/~rmk/linux-arm:
fs/adfs: fix filename fixup handling for "/" and "//" names
fs/adfs: move append_filetype_suffix() into adfs_object_fixup()
fs/adfs: remove truncated filename hashing
fs/adfs: factor out filename fixup
fs/adfs: factor out object fixups
fs/adfs: factor out filename case lowering
fs/adfs: factor out filename comparison
Use a safe strscpy call to copy the ethtool stat strings into the
relevant buffers, instead of a memcpy that will be accessing
out-of-bound data.
Fixes: 118d6298f6 ("net: mvpp2: add ethtool GOP statistics")
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When the following tests last for several hours, the problem will occur.
Server:
rds-stress -r 1.1.1.16 -D 1M
Client:
rds-stress -r 1.1.1.14 -s 1.1.1.16 -D 1M -T 30
The following will occur.
"
Starting up....
tsks tx/s rx/s tx+rx K/s mbi K/s mbo K/s tx us/c rtt us cpu
%
1 0 0 0.00 0.00 0.00 0.00 0.00 -1.00
1 0 0 0.00 0.00 0.00 0.00 0.00 -1.00
1 0 0 0.00 0.00 0.00 0.00 0.00 -1.00
1 0 0 0.00 0.00 0.00 0.00 0.00 -1.00
"
>From vmcore, we can find that clean_list is NULL.
>From the source code, rds_mr_flushd calls rds_ib_mr_pool_flush_worker.
Then rds_ib_mr_pool_flush_worker calls
"
rds_ib_flush_mr_pool(pool, 0, NULL);
"
Then in function
"
int rds_ib_flush_mr_pool(struct rds_ib_mr_pool *pool,
int free_all, struct rds_ib_mr **ibmr_ret)
"
ibmr_ret is NULL.
In the source code,
"
...
list_to_llist_nodes(pool, &unmap_list, &clean_nodes, &clean_tail);
if (ibmr_ret)
*ibmr_ret = llist_entry(clean_nodes, struct rds_ib_mr, llnode);
/* more than one entry in llist nodes */
if (clean_nodes->next)
llist_add_batch(clean_nodes->next, clean_tail, &pool->clean_list);
...
"
When ibmr_ret is NULL, llist_entry is not executed. clean_nodes->next
instead of clean_nodes is added in clean_list.
So clean_nodes is discarded. It can not be used again.
The workqueue is executed periodically. So more and more clean_nodes are
discarded. Finally the clean_list is NULL.
Then this problem will occur.
Fixes: 1bc144b625 ("net, rds, Replace xlist in net/rds/xlist.h with llist")
Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Olivier Matz says:
====================
ipv6: fix EFAULT on sendto with icmpv6 and hdrincl
The following code returns EFAULT (Bad address):
s = socket(AF_INET6, SOCK_RAW, IPPROTO_ICMPV6);
setsockopt(s, SOL_IPV6, IPV6_HDRINCL, 1);
sendto(ipv6_icmp6_packet, addr); /* returns -1, errno = EFAULT */
The problem is fixed in the second patch. The first one aligns the
code to ipv4, to avoid a race condition in the second patch.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The following code returns EFAULT (Bad address):
s = socket(AF_INET6, SOCK_RAW, IPPROTO_ICMPV6);
setsockopt(s, SOL_IPV6, IPV6_HDRINCL, 1);
sendto(ipv6_icmp6_packet, addr); /* returns -1, errno = EFAULT */
The IPv4 equivalent code works. A workaround is to use IPPROTO_RAW
instead of IPPROTO_ICMPV6.
The failure happens because 2 bytes are eaten from the msghdr by
rawv6_probe_proto_opt() starting from commit 19e3c66b52 ("ipv6
equivalent of "ipv4: Avoid reading user iov twice after
raw_probe_proto_opt""), but at that time it was not a problem because
IPV6_HDRINCL was not yet introduced.
Only eat these 2 bytes if hdrincl == 0.
Fixes: 715f504b11 ("ipv6: add IPV6_HDRINCL option for raw sockets")
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As it was done in commit 8f659a03a0 ("net: ipv4: fix for a race
condition in raw_sendmsg") and commit 20b50d7997 ("net: ipv4: emulate
READ_ONCE() on ->hdrincl bit-field in raw_sendmsg()") for ipv4, copy the
value of inet->hdrincl in a local variable, to avoid introducing a race
condition in the next commit.
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 87fd125344 ("nvme-rdma: remove redundant reference between
ib_device and tagset") caused a kernel panic when disconnecting from an
inaccessible controller (disconnect during re-connection).
--
nvme nvme0: Removing ctrl: NQN "testnqn1"
nvme_rdma: nvme_rdma_exit_request: hctx 0 queue_idx 1
BUG: unable to handle kernel paging request at 0000000080000228
PGD 0 P4D 0
Oops: 0000 [#1] SMP PTI
...
Call Trace:
blk_mq_exit_hctx+0x5c/0xf0
blk_mq_exit_queue+0xd4/0x100
blk_cleanup_queue+0x9a/0xc0
nvme_rdma_destroy_io_queues+0x52/0x60 [nvme_rdma]
nvme_rdma_shutdown_ctrl+0x3e/0x80 [nvme_rdma]
nvme_do_delete_ctrl+0x53/0x80 [nvme_core]
nvme_sysfs_delete+0x45/0x60 [nvme_core]
kernfs_fop_write+0x105/0x180
vfs_write+0xad/0x1a0
ksys_write+0x5a/0xd0
do_syscall_64+0x55/0x110
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fa215417154
--
The reason for this crash is accessing an already freed ib_device for
performing dma_unmap during exit_request commands. The root cause for
that is that during re-connection all the queues are destroyed and
re-created (and the ib_device is reference counted by the queues and
freed as well) but the tagset stays alive and all the DMA mappings (that
we perform in init_request) kept in the request context. The original
commit fixed a different bug that was introduced during bonding (aka nic
teaming) tests that for some scenarios change the underlying ib_device
and caused memory leakage and possible segmentation fault. This commit
is a complementary commit that also changes the wrong DMA mappings that
were saved in the request context and making the request sqe dma
mappings dynamic with the command lifetime (i.e. mapped in .queue_rq and
unmapped in .complete). It also fixes the above crash of accessing freed
ib_device during destruction of the tagset.
Fixes: 87fd125344 ("nvme-rdma: remove redundant reference between ib_device and tagset")
Reported-by: Jim Harris <james.r.harris@intel.com>
Suggested-by: Sagi Grimberg <sagi@grimberg.me>
Tested-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
The Number of Namespaces (nn) field in the identify controller data structure is
defined as u32 and the maximum allowed value in NVMe specification is
0xFFFFFFFEUL. This change fixes the possible overflow of the DIV_ROUND_UP()
operation used in nvme_scan_ns_list() by casting the nn to u64.
Signed-off-by: Jaesoo Lee <jalee@purestorage.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Commit 73118ca8ba introduced a glock reference counting bug in
gfs2_trans_remove_revoke. Given that, replacing gl_revokes with a GLF flag is
no longer useful, so revert that commit.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Since GCC 9, the compiler warns about evolution of the
platform-specific ABI, in particular relating for the marshaling of
certain structures involving bitfields.
The kernel is a standalone binary, and of course nobody would be
so stupid as to expose structs containing bitfields as function
arguments in ABI. (Passing a pointer to such a struct, however
inadvisable, should be unaffected by this change. perf and various
drivers rely on that.)
So these warnings do more harm than good: turn them off.
We may miss warnings about future ABI drift, but that's too bad.
Future ABI breaks of this class will have to be debugged and fixed
the traditional way unless the compiler evolves finer-grained
diagnostics.
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
According to the found documentation, data cache flushes and sync
instructions are needed on the PCX-U+ (PA8200, e.g. C200/C240)
platforms, while PCX-W (PA8500, e.g. C360) platforms aparently don't
need those flushes when changing the IO PDIR data structures.
We have no documentation for PCX-W+ (PA8600) and PCX-W2 (PA8700) CPUs,
but Carlo Pisani reported that his C3600 machine (PA8600, PCX-W+) fails
when the fdc instructions were removed. His firmware didn't set the NIOP
bit, so one may assume it's a firmware bug since other C3750 machines
had the bit set.
Even if documentation (as mentioned above) states that PCX-W (PA8500,
e.g. J5000) does not need fdc flushes, Sven could show that an Adaptec
29320A PCI-X SCSI controller reliably failed on a dd command during the
first five minutes in his J5000 when fdc flushes were missing.
Going forward, we will now NOT replace the fdc and sync assembler
instructions by NOPS if:
a) the NP iopdir_fdc bit was set by firmware, or
b) we find a CPU up to and including a PCX-W+ (PA8600).
This fixes the HPMC crashes on a C240 and C36XX machines. For other
machines we rely on the firmware to set the bit when needed.
In case one finds HPMC issues, people could try to boot their machines
with the "no-alternatives" kernel option to turn off any alternative
patching.
Reported-by: Sven Schnelle <svens@stackframe.org>
Reported-by: Carlo Pisani <carlojpisani@gmail.com>
Tested-by: Sven Schnelle <svens@stackframe.org>
Fixes: 3847dab774 ("parisc: Add alternative coding infrastructure")
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # 5.0+
