In an initial commit, 'SYNC_STATUS' register is referred to get
clock configuration, however this is wrong, according to my local
note at hand for reverse-engineering about packet dump. It should
be 'CLOCK_CONFIG' register. Actually, ff400_dump_clock_config()
is correctly programmed.
This commit fixes the bug.
Cc: <stable@vger.kernel.org> # v4.12+
Fixes: 76fdb3a9e1 ('ALSA: fireface: add support for Fireface 400')
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Users reported a mute LED regression on Lenovo X1 Carbon, the root
cause is we applied the fixup of ALC285_FIXUP_LENOVO_HEADPHONE_NOISE
to this machine, then the machine can't apply the fixup of
ALC269_FIXUP_THINKPAD_ACPI anymore. To fix it, we chain two fixup
together.
Fixes: c4cfcf6f42 ("ALSA: hda/realtek - fix the pop noise on headphone for lenovo laptops")
Cc: <stable@vger.kernel.org>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
rx_ppp and tx_ppp can be set between 0 and 255, so don't clamp to 1.
Fixes: 6e8814ceb7 ("net/mlx4_en: Fix mixed PFC and Global pause user control requests")
Signed-off-by: Tarick Bedeir <tarick@google.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Multiple people reported a bug I introduced in asm-generic/unistd.h
in 4.20, this is the obvious bugfix to get glibc and others to
correctly build again on new architectures that no longer provide
the old fstatat64() family of system calls.
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Merge tag 'asm-generic-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic fix from Arnd Bergmann:
"Multiple people reported a bug I introduced in asm-generic/unistd.h in
4.20, this is the obvious bugfix to get glibc and others to correctly
build again on new architectures that no longer provide the old
fstatat64() family of system calls"
* tag 'asm-generic-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
asm-generic: unistd.h: fixup broken macro include.
- Introduce protected-clock DT binding to fix breakage on qcom sdm845-mtp
boards where the qspi clks introduced this merge window cause the
firmware on those boards to take down the system if we try to read
the clk registers
- Fix a couple off-by-one errors found by Dan Carpenter
- Handle failure in zynq fixed factor clk driver to avoid using
uninitialized data
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"A few clk driver fixes this time:
- Introduce protected-clock DT binding to fix breakage on qcom
sdm845-mtp boards where the qspi clks introduced this merge window
cause the firmware on those boards to take down the system if we
try to read the clk registers
- Fix a couple off-by-one errors found by Dan Carpenter
- Handle failure in zynq fixed factor clk driver to avoid using
uninitialized data"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: zynqmp: Off by one in zynqmp_is_valid_clock()
clk: mmp: Off by one in mmp_clk_add()
clk: mvebu: Off by one bugs in cp110_of_clk_get()
arm64: dts: qcom: sdm845-mtp: Mark protected gcc clocks
clk: qcom: Support 'protected-clocks' property
dt-bindings: clk: Introduce 'protected-clocks' property
clk: zynqmp: handle fixed factor param query error
- Fix broken project quota inode counts
- Fix incorrect PAGE_MASK/PAGE_SIZE usage
- Fix incorrect return value in btree verifier
- Fix WARN_ON remap flags false positive
- Fix splice read overflows
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Merge tag 'xfs-4.20-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong:
"Here are hopefully the last set of fixes for 4.20.
There's a fix for a longstanding statfs reporting problem with project
quotas, a correction for page cache invalidation behaviors when
fallocating near EOF, and a fix for a broken metadata verifier return
code.
Finally, the most important fix is to the pipe splicing code (aka the
generic copy_file_range fallback) to avoid pointless short directio
reads by only asking the filesystem for as much data as there are
available pages in the pipe buffer. Our previous fix (simulated short
directio reads because the number of pages didn't match the length of
the read requested) caused subtle problems on overlayfs, so that part
is reverted.
Anyhow, this series passes fstests -g all on xfs and overlay+xfs, and
has passed 17 billion fsx operations problem-free since I started
testing
Summary:
- Fix broken project quota inode counts
- Fix incorrect PAGE_MASK/PAGE_SIZE usage
- Fix incorrect return value in btree verifier
- Fix WARN_ON remap flags false positive
- Fix splice read overflows"
* tag 'xfs-4.20-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
iomap: partially revert 4721a60109 (simulated directio short read on EFAULT)
splice: don't read more than available pipe space
vfs: allow some remap flags to be passed to vfs_clone_file_range
xfs: fix inverted return from xfs_btree_sblock_verify_crc
xfs: fix PAGE_MASK usage in xfs_free_file_space
fs/xfs: fix f_ffree value for statfs when project quota is set
This reverts commit 89c83fb539.
This should have been done as part of 2f0799a0ff ("mm, thp: restore
node-local hugepage allocations"). The movement of the thp allocation
policy from alloc_pages_vma() to alloc_hugepage_direct_gfpmask() was
intended to only set __GFP_THISNODE for mempolicies that are not
MPOL_BIND whereas the revert could set this regardless of mempolicy.
While the check for MPOL_BIND between alloc_hugepage_direct_gfpmask()
and alloc_pages_vma() was racy, that has since been removed since the
revert. What is left is the possibility to use __GFP_THISNODE in
policy_node() when it is unexpected because the special handling for
hugepages in alloc_pages_vma() was removed as part of the consolidation.
Secondly, prior to 89c83fb539, alloc_pages_vma() implemented a somewhat
different policy for hugepage allocations, which were allocated through
alloc_hugepage_vma(). For hugepage allocations, if the allocating
process's node is in the set of allowed nodes, allocate with
__GFP_THISNODE for that node (for MPOL_PREFERRED, use that node with
__GFP_THISNODE instead). This was changed for shmem_alloc_hugepage() to
allow fallback to other nodes in 89c83fb539 as it did for new_page() in
mm/mempolicy.c which is functionally different behavior and removes the
requirement to only allocate hugepages locally.
So this commit does a full revert of 89c83fb539 instead of the partial
revert that was done in 2f0799a0ff. The result is the same thp
allocation policy for 4.20 that was in 4.19.
Fixes: 89c83fb539 ("mm, thp: consolidate THP gfp handling into alloc_hugepage_direct_gfpmask")
Fixes: 2f0799a0ff ("mm, thp: restore node-local hugepage allocations")
Signed-off-by: David Rientjes <rientjes@google.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This reverts commit 624ca9c33c.
This commit is completely bogus. The STACR register has two formats, old
and new, depending on the version of the IP block used. There's a pair of
device-tree properties that can be used to specify the format used:
has-inverted-stacr-oc
has-new-stacr-staopc
What this commit did was to change the bit definition used with the old
parts to match the new parts. This of course breaks the driver on all
the old ones.
Instead, the author should have set the appropriate properties in the
device-tree for the variant used on his board.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stefano Brivio says:
====================
Fix slab out-of-bounds on insufficient headroom for IPv6 packets
Patch 1/2 fixes a slab out-of-bounds occurring with short SCTP packets over
IPv4 over L2TP over IPv6 on a configuration with relatively low HEADER_MAX.
Patch 2/2 makes sure we avoid writing before the allocated buffer in
neigh_hh_output() in case the headroom is enough for the unaligned hardware
header size, but not enough for the aligned one, and that we warn if we hit
this condition.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
While skb_push() makes the kernel panic if the skb headroom is less than
the unaligned hardware header size, it will proceed normally in case we
copy more than that because of alignment, and we'll silently corrupt
adjacent slabs.
In the case fixed by the previous patch,
"ipv6: Check available headroom in ip6_xmit() even without options", we
end up in neigh_hh_output() with 14 bytes headroom, 14 bytes hardware
header and write 16 bytes, starting 2 bytes before the allocated buffer.
Always check we're not writing before skb->head and, if the headroom is
not enough, warn and drop the packet.
v2:
- instead of panicking with BUG_ON(), WARN_ON_ONCE() and drop the packet
(Eric Dumazet)
- if we avoid the panic, though, we need to explicitly check the headroom
before the memcpy(), otherwise we'll have corrupted slabs on a running
kernel, after we warn
- use __skb_push() instead of skb_push(), as the headroom check is
already implemented here explicitly (Eric Dumazet)
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Even if we send an IPv6 packet without options, MAX_HEADER might not be
enough to account for the additional headroom required by alignment of
hardware headers.
On a configuration without HYPERV_NET, WLAN, AX25, and with IPV6_TUNNEL,
sending short SCTP packets over IPv4 over L2TP over IPv6, we start with
100 bytes of allocated headroom in sctp_packet_transmit(), end up with 54
bytes after l2tp_xmit_skb(), and 14 bytes in ip6_finish_output2().
Those would be enough to append our 14 bytes header, but we're going to
align that to 16 bytes, and write 2 bytes out of the allocated slab in
neigh_hh_output().
KASan says:
[ 264.967848] ==================================================================
[ 264.967861] BUG: KASAN: slab-out-of-bounds in ip6_finish_output2+0x1aec/0x1c70
[ 264.967866] Write of size 16 at addr 000000006af1c7fe by task netperf/6201
[ 264.967870]
[ 264.967876] CPU: 0 PID: 6201 Comm: netperf Not tainted 4.20.0-rc4+ #1
[ 264.967881] Hardware name: IBM 2827 H43 400 (z/VM 6.4.0)
[ 264.967887] Call Trace:
[ 264.967896] ([<00000000001347d6>] show_stack+0x56/0xa0)
[ 264.967903] [<00000000017e379c>] dump_stack+0x23c/0x290
[ 264.967912] [<00000000007bc594>] print_address_description+0xf4/0x290
[ 264.967919] [<00000000007bc8fc>] kasan_report+0x13c/0x240
[ 264.967927] [<000000000162f5e4>] ip6_finish_output2+0x1aec/0x1c70
[ 264.967935] [<000000000163f890>] ip6_finish_output+0x430/0x7f0
[ 264.967943] [<000000000163fe44>] ip6_output+0x1f4/0x580
[ 264.967953] [<000000000163882a>] ip6_xmit+0xfea/0x1ce8
[ 264.967963] [<00000000017396e2>] inet6_csk_xmit+0x282/0x3f8
[ 264.968033] [<000003ff805fb0ba>] l2tp_xmit_skb+0xe02/0x13e0 [l2tp_core]
[ 264.968037] [<000003ff80631192>] l2tp_eth_dev_xmit+0xda/0x150 [l2tp_eth]
[ 264.968041] [<0000000001220020>] dev_hard_start_xmit+0x268/0x928
[ 264.968069] [<0000000001330e8e>] sch_direct_xmit+0x7ae/0x1350
[ 264.968071] [<000000000122359c>] __dev_queue_xmit+0x2b7c/0x3478
[ 264.968075] [<00000000013d2862>] ip_finish_output2+0xce2/0x11a0
[ 264.968078] [<00000000013d9b14>] ip_finish_output+0x56c/0x8c8
[ 264.968081] [<00000000013ddd1e>] ip_output+0x226/0x4c0
[ 264.968083] [<00000000013dbd6c>] __ip_queue_xmit+0x894/0x1938
[ 264.968100] [<000003ff80bc3a5c>] sctp_packet_transmit+0x29d4/0x3648 [sctp]
[ 264.968116] [<000003ff80b7bf68>] sctp_outq_flush_ctrl.constprop.5+0x8d0/0xe50 [sctp]
[ 264.968131] [<000003ff80b7c716>] sctp_outq_flush+0x22e/0x7d8 [sctp]
[ 264.968146] [<000003ff80b35c68>] sctp_cmd_interpreter.isra.16+0x530/0x6800 [sctp]
[ 264.968161] [<000003ff80b3410a>] sctp_do_sm+0x222/0x648 [sctp]
[ 264.968177] [<000003ff80bbddac>] sctp_primitive_ASSOCIATE+0xbc/0xf8 [sctp]
[ 264.968192] [<000003ff80b93328>] __sctp_connect+0x830/0xc20 [sctp]
[ 264.968208] [<000003ff80bb11ce>] sctp_inet_connect+0x2e6/0x378 [sctp]
[ 264.968212] [<0000000001197942>] __sys_connect+0x21a/0x450
[ 264.968215] [<000000000119aff8>] sys_socketcall+0x3d0/0xb08
[ 264.968218] [<000000000184ea7a>] system_call+0x2a2/0x2c0
[...]
Just like ip_finish_output2() does for IPv4, check that we have enough
headroom in ip6_xmit(), and reallocate it if we don't.
This issue is older than git history.
Reported-by: Jianlin Shi <jishi@redhat.com>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
tcp_tso_should_defer() can return true in three different cases :
1) We are cwnd-limited
2) We are rwnd-limited
3) We are application limited.
Neal pointed out that my recent fix went too far, since
it assumed that if we were not in 1) case, we must be rwnd-limited
Fix this by properly populating the is_cwnd_limited and
is_rwnd_limited booleans.
After this change, we can finally move the silly check for FIN
flag only for the application-limited case.
The same move for EOR bit will be handled in net-next,
since commit 1c09f7d073 ("tcp: do not try to defer skbs
with eor mark (MSG_EOR)") is scheduled for linux-4.21
Tested by running 200 concurrent netperf -t TCP_RR -- -r 60000,100
and checking none of them was rwnd_limited in the chrono_stat
output from "ss -ti" command.
Fixes: 41727549de ("tcp: Do not underestimate rwnd_limited")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Suggested-by: Neal Cardwell <ncardwell@google.com>
Reviewed-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A couple of last-minute fixes.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull vhost/virtio fixes from Michael Tsirkin:
"A couple of last-minute fixes"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vhost/vsock: fix use-after-free in network stack callers
virtio/s390: fix race in ccw_io_helper()
virtio/s390: avoid race on vcdev->config
vhost/vsock: fix reset orphans race with close timeout
Pull crypto fixes from Herbert Xu:
- Disable the new crypto stats interface as it's still being changed
- Fix potential uses-after-free in cbc/cfb/pcbc.
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: user - Disable statistics interface
crypto: do not free algorithm before using
struct bioctx includes the ref refcount_t to track the number of I/O
fragments used to process a target BIO as well as ensure that the zone
of the BIO is kept in the active state throughout the lifetime of the
BIO. However, since decrementing of this reference count is done in the
target .end_io method, the function bio_endio() must be called multiple
times for read and write target BIOs, which causes problems with the
value of the __bi_remaining struct bio field for chained BIOs (e.g. the
clone BIO passed by dm core is large and splits into fragments by the
block layer), resulting in incorrect values and inconsistencies with the
BIO_CHAIN flag setting. This is turn triggers the BUG_ON() call:
BUG_ON(atomic_read(&bio->__bi_remaining) <= 0);
in bio_remaining_done() called from bio_endio().
Fix this ensuring that bio_endio() is called only once for any target
BIO by always using internal clone BIOs for processing any read or
write target BIO. This allows reference counting using the target BIO
context counter to trigger the target BIO completion bio_endio() call
once all data, metadata and other zone work triggered by the BIO
complete.
Overall, this simplifies the code too as the target .end_io becomes
unnecessary and differences between read and write BIO issuing and
completion processing disappear.
Fixes: 3b1a94c88b ("dm zoned: drive-managed zoned block device target")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Otherwise the incoming bios, of various types, won't be shaped based on
the DM device's advertised limits.
Depends-on: af67c31fba ("blk: remove bio_set arg from blk_queue_split()")
Fixes: 744889b7cb ("block: don't deal with discard limit in blkdev_issue_discard()")
Cc: stable@vger.kernel.org
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Otherwise dm_bitset_cursor_begin() return -ENODATA. Other calls to
dm_bitset_cursor_begin() have similar negative checks.
Fixes inability to create a cache in passthrough mode (even though doing
so makes no sense).
Fixes: 0d963b6e65 ("dm cache metadata: fix metadata2 format's blocks_are_clean_separate_dirty")
Cc: stable@vger.kernel.org
Reported-by: David Teigland <teigland@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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Merge tag 'pci-v4.20-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
"Revert ASPM change that caused a regression"
* tag 'pci-v4.20-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
Revert "PCI/ASPM: Do not initialize link state when aspm_disabled is set"
In 'seg6_output', stack variable 'struct flowi6 fl6' was missing
initialization.
Fixes: 6c8702c60b ("ipv6: sr: add support for SRH encapsulation and injection with lwtunnels")
Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'for-linus-20181207' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Let's try this again...
We're finally happy with the DM livelock issue, and it's also passed
overnight testing and the corruption regression test. The end result
is much nicer now too, which is great.
Outside of that fix, there's a pull request for NVMe with two small
fixes, and a regression fix for BFQ from this merge window. The BFQ
fix looks bigger than it is, it's 90% comment updates"
* tag 'for-linus-20181207' of git://git.kernel.dk/linux-block:
blk-mq: punt failed direct issue to dispatch list
nvmet-rdma: fix response use after free
nvme: validate controller state before rescheduling keep alive
block, bfq: fix decrement of num_active_groups
Pull i2c fixes from Wolfram Sang:
"A set of driver bugfixes for the I2C subsystem"
* 'i2c/for-current-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: uniphier-f: fix violation of tLOW requirement for Fast-mode
i2c: uniphier: fix violation of tLOW requirement for Fast-mode
i2c: uniphier-f: fill TX-FIFO only in IRQ handler for repeated START
i2c: uniphier-f: fix timeout error after reading 8 bytes
i2c: scmi: Fix probe error on devices with an empty SMB0001 ACPI device node
i2c: axxia: properly handle master timeout
i2c: rcar: check bus state before reinitializing
i2c: nvidia-gpu: limit reads also for combined messages
i2c: nvidia-gpu: adhere to I2C fault codes
dmaengine fixes for v4.20-rc6
- Fixing imx-sdma handling of channel terminations, this involves
reverting two commits and implement async termination
- Fix cppi dma channel deletion from pending list on stop
- Fix FIFO size for dw controller in Intel Merrifield
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Merge tag 'dmaengine-fix-4.20-rc6' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fixes from Vinod Koul:
"Another pull request for dmaengine. We got bunch of fixes early this
week and all are tagged to stable. Hope this is last fix for this
cycle:
- Fix imx-sdma handling of channel terminations, this involves
reverting two commits and implement async termination
- Fix cppi dma channel deletion from pending list on stop
- Fix FIFO size for dw controller in Intel Merrifield"
* tag 'dmaengine-fix-4.20-rc6' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: dw: Fix FIFO size for Intel Merrifield
dmaengine: cppi41: delete channel from pending list when stop channel
dmaengine: imx-sdma: use GFP_NOWAIT for dma descriptor allocations
dmaengine: imx-sdma: implement channel termination via worker
Revert "dmaengine: imx-sdma: alloclate bd memory from dma pool"
Revert "dmaengine: imx-sdma: Use GFP_NOWAIT for dma allocations"
GNU linker's -z common-page-size's default value is based on the target
architecture. arch/x86/entry/vdso/Makefile sets it to the architecture
default, which is implicit and redundant. Drop it.
Fixes: 2aae950b21 ("x86_64: Add vDSO for x86-64 with gettimeofday/clock_gettime/getcpu")
Reported-by: Dmitry Golovin <dima@golovin.in>
Reported-by: Bill Wendling <morbo@google.com>
Suggested-by: Dmitry Golovin <dima@golovin.in>
Suggested-by: Rui Ueyama <ruiu@google.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Andy Lutomirski <luto@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Fangrui Song <maskray@google.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20181206191231.192355-1-ndesaulniers@google.com
Link: https://bugs.llvm.org/show_bug.cgi?id=38774
Link: https://github.com/ClangBuiltLinux/linux/issues/31
Some new variants require updated firmware.
V2: add MODULE_FIRMWARE for new firmwares
Reviewed-by: Huang Rui <ray.huang@amd.com> (v1)
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Since commit 3b8c9f1cdf ("arm64: IPI each CPU after invalidating the
I-cache for kernel mappings"), a call to flush_icache_range() will use
an IPI to cross-call other online CPUs so that any stale instructions
are flushed from their pipelines. This triggers a WARN during the
hibernation resume path, where flush_icache_range() is called with
interrupts disabled and is therefore prone to deadlock:
| Disabling non-boot CPUs ...
| CPU1: shutdown
| psci: CPU1 killed.
| CPU2: shutdown
| psci: CPU2 killed.
| CPU3: shutdown
| psci: CPU3 killed.
| WARNING: CPU: 0 PID: 1 at ../kernel/smp.c:416 smp_call_function_many+0xd4/0x350
| Modules linked in:
| CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.20.0-rc4 #1
Since all secondary CPUs have been taken offline prior to invalidating
the I-cache, there's actually no need for an IPI and we can simply call
__flush_icache_range() instead.
Cc: <stable@vger.kernel.org>
Fixes: 3b8c9f1cdf ("arm64: IPI each CPU after invalidating the I-cache for kernel mappings")
Reported-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Tested-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Tested-by: James Morse <james.morse@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Pull NVMe fixes from Christoph.
* 'nvme-4.20' of git://git.infradead.org/nvme:
nvmet-rdma: fix response use after free
nvme: validate controller state before rescheduling keep alive
After the direct dispatch corruption fix, we permanently disallow direct
dispatch of non read/write requests. This works fine off the normal IO
path, as they will be retried like any other failed direct dispatch
request. But for the blk_insert_cloned_request() that only DM uses to
bypass the bottom level scheduler, we always first attempt direct
dispatch. For some types of requests, that's now a permanent failure,
and no amount of retrying will make that succeed. This results in a
livelock.
Instead of making special cases for what we can direct issue, and now
having to deal with DM solving the livelock while still retaining a BUSY
condition feedback loop, always just add a request that has been through
->queue_rq() to the hardware queue dispatch list. These are safe to use
as no merging can take place there. Additionally, if requests do have
prepped data from drivers, we aren't dependent on them not sharing space
in the request structure to safely add them to the IO scheduler lists.
This basically reverts ffe81d4532 and is based on a patch from Ming,
but with the list insert case covered as well.
Fixes: ffe81d4532 ("blk-mq: fix corruption with direct issue")
Cc: stable@vger.kernel.org
Suggested-by: Ming Lei <ming.lei@redhat.com>
Reported-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Ming Lei <ming.lei@redhat.com>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
nvmet_rdma_release_rsp() may free the response before using it at error
flow.
Fixes: 8407879 ("nvmet-rdma: fix possible bogus dereference under heavy load")
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Delete operations are seeing NULL pointer references in call_timer_fn.
Tracking these back, the timer appears to be the keep alive timer.
nvme_keep_alive_work() which is tied to the timer that is cancelled
by nvme_stop_keep_alive(), simply starts the keep alive io but doesn't
wait for it's completion. So nvme_stop_keep_alive() only stops a timer
when it's pending. When a keep alive is in flight, there is no timer
running and the nvme_stop_keep_alive() will have no affect on the keep
alive io. Thus, if the io completes successfully, the keep alive timer
will be rescheduled. In the failure case, delete is called, the
controller state is changed, the nvme_stop_keep_alive() is called while
the io is outstanding, and the delete path continues on. The keep
alive happens to successfully complete before the delete paths mark it
as aborted as part of the queue termination, so the timer is restarted.
The delete paths then tear down the controller, and later on the timer
code fires and the timer entry is now corrupt.
Fix by validating the controller state before rescheduling the keep
alive. Testing with the fix has confirmed the condition above was hit.
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Since commit '2d29c9f89fcd ("block, bfq: improve asymmetric scenarios
detection")', if there are process groups with I/O requests waiting for
completion, then BFQ tags the scenario as 'asymmetric'. This detection
is needed for preserving service guarantees (for details, see comments
on the computation * of the variable asymmetric_scenario in the
function bfq_better_to_idle).
Unfortunately, commit '2d29c9f89fcd ("block, bfq: improve asymmetric
scenarios detection")' contains an error exactly in the updating of
the number of groups with I/O requests waiting for completion: if a
group has more than one descendant process, then the above number of
groups, which is renamed from num_active_groups to a more appropriate
num_groups_with_pending_reqs by this commit, may happen to be wrongly
decremented multiple times, namely every time one of the descendant
processes gets all its pending I/O requests completed.
A correct, complete solution should work as follows. Consider a group
that is inactive, i.e., that has no descendant process with pending
I/O inside BFQ queues. Then suppose that num_groups_with_pending_reqs
is still accounting for this group, because the group still has some
descendant process with some I/O request still in
flight. num_groups_with_pending_reqs should be decremented when the
in-flight request of the last descendant process is finally completed
(assuming that nothing else has changed for the group in the meantime,
in terms of composition of the group and active/inactive state of
child groups and processes). To accomplish this, an additional
pending-request counter must be added to entities, and must be
updated correctly.
To avoid this additional field and operations, this commit resorts to
the following tradeoff between simplicity and accuracy: for an
inactive group that is still counted in num_groups_with_pending_reqs,
this commit decrements num_groups_with_pending_reqs when the first
descendant process of the group remains with no request waiting for
completion.
This simplified scheme provides a fix to the unbalanced decrements
introduced by 2d29c9f89f. Since this error was also caused by lack
of comments on this non-trivial issue, this commit also adds related
comments.
Fixes: 2d29c9f89f ("block, bfq: improve asymmetric scenarios detection")
Reported-by: Steven Barrett <steven@liquorix.net>
Tested-by: Steven Barrett <steven@liquorix.net>
Tested-by: Lucjan Lucjanov <lucjan.lucjanov@gmail.com>
Reviewed-by: Federico Motta <federico@willer.it>
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
ABS_RESERVED was added in d9ca1c990a and accidentally removed as part of
ffe0e7cf29 when the high-resolution scrolling code was removed.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
SNES RetroPort and RetroPad register only 4 gamepad buttons
when they should register all 8 buttons. This is described here:
https://ask.fedoraproject.org/en/question/128102
This is happening because of:
Commit 190d7f02ce ("HID: input: do not increment usages when
duplicate is found")
Here, I add the quirk HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE
(created for backward compatibility with the change in 190d7f02ce)
for the two products.
Tested with both RetroPort and RetroPad.
Cc: stable@vger.kernel.org # v4.18+
Signed-off-by: Nic Soudée <nsoudee@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Here's a fix for a broken activation retry loop in the sirf driver.
Included are also two MAINTAINERS updates.
All have been in linux-next with no reported issues.
Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'gnss-4.20-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/gnss into char-misc-linus
Johan writes:
GNSS fixes for 4.20-rc6
Here's a fix for a broken activation retry loop in the sirf driver.
Included are also two MAINTAINERS updates.
All have been in linux-next with no reported issues.
Signed-off-by: Johan Hovold <johan@kernel.org>
* tag 'gnss-4.20-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/gnss:
MAINTAINERS: exclude gnss from SIRFPRIMA2 regex matching
MAINTAINERS: add gnss scm tree
gnss: sirf: fix activation retry handling
Pin PH11 is used on various A83T board to detect a change in the OTG
port's ID pin, as in when an OTG host cable is plugged in.
The incorrect offset meant the gpiochip/irqchip was activating the wrong
pin for interrupts.
Fixes: 4730f33f0d ("pinctrl: sunxi: add allwinner A83T PIO controller support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Fix an off-by-one error in the memory resource range. This resource is
used to determine the address range of the memory to be hot-plugged as
ZONE_DEVICE memory. The current end address results in the kernel
attempting to map an additional memblock and the hypervisor may reject
the mapping resulting in the entire hot-plug failing.
Fixes: b5beae5e22 ("powerpc/pseries: Add driver for PAPR SCM regions")
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Making PAPR_SCM select LIBNVDIMM results in circular dependencies in
Kconfig when another symbol depends on it. Fix this by replacing the
select with a depends.
Fixes: b5beae5e22 ("powerpc/pseries: Add driver for PAPR SCM regions")
Reported-by: Alastair D'Silva <alastair@d-silva.org>
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Now that there are different variants of pt_regs for userspace and
kernel, the uapi for the BPF_PROG_TYPE_PERF_EVENT program type must be
changed by exporting the user_pt_regs structure instead of the pt_regs
structure that is in-kernel only.
Fixes: 002af9391b ("powerpc: Split user/kernel definitions of struct pt_regs")
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
If it plugged headphone or headset into the jack, then
do the reboot, it will have a chance to cause headphone no sound.
It just need to run the headphone mode procedure after boot time.
The issue will be fixed.
It also suitable for ALC234 ALC274 and ALC294.
Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
EBUSY is not handled by VFS, and will be passed to user-mode. This is not
correct as we need to wait for more credits.
This patch also fixes a bug where rsize or wsize is used uninitialized when
the call to server->ops->wait_mtu_credits() fails.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Long Li <longli@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Since this user-space API is still undergoing significant changes,
this patch disables it for the current merge window.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Merge tag 'drm-fixes-2018-12-07' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"There's a bit more in here than I'd like, and I'm hoping things calm
down when I'm out.
msm:
- a bunch of display fixes for the new DPU
- a couple of command submission fixes
omap:
- some DSI fixes
ast:
- driver unload crash fix
core:
- fix the lease uevent so userspace can distinguish it
amd:
- fix a bpc regression
- fix lru handling regression
- fixed firmware support for new GPUs
- power management fixes for vega20"
* tag 'drm-fixes-2018-12-07' of git://anongit.freedesktop.org/drm/drm: (37 commits)
drm/ast: Fix connector leak during driver unload
drm/amdgpu/vcn: Update vcn.cur_state during suspend
drm/amd/display: Fix overflow/truncation from strncpy.
drm/amd/powerplay: improve OD code robustness
drm/amdgpu: enlarge maximum waiting time of KIQ
drm/fb-helper: Fix typo in parameter description
drm/amd/powerplay: support SoftMin/Max setting for some specific DPM
drm/amd/powerplay: issue pre-display settings for display change event
drm/amd/powerplay: support new pptable upload on Vega20
drm/amdgpu/gmc8: always load MC firmware in the driver
drm/amdgpu/gmc8: update MC firmware for polaris
drm/amdgpu: update mc firmware image for polaris12 variants
drm/msm: Fix error return checking
drm/msm/dpu: Ignore alpha for XBGR8888 format
drm/msm: dpu: Fix "WARNING: invalid free of devm_ allocated data"
drm/msm/hdmi: Drop pointless static qualifier in msm_hdmi_bind()
drm/msm: Move fence put to where failure occurs
drm/msm: dpu: Don't set legacy plane->crtc pointer
drm/msm/gpu: Don't map command buffers with nr_relocs equal to 0
drm/msm/hdmi: Enable HPD after HDMI IRQ is set up
...
Highlights include:
Stable fixes:
- Fix a page leak when using RPCSEC_GSS/krb5p to encrypt data.
Bugfixes:
- Fix a regression that causes the RPC receive code to hang
- Fix call_connect_status() so that it handles tasks that got transmitted
while queued waiting for the socket lock.
- Fix a memory leak in call_encode()
- Fix several other connect races.
- Fix receive code error handling.
- Use the discard iterator rather than MSG_TRUNC for compatibility with
AF_UNIX/AF_LOCAL sockets.
- nfs: don't dirty kernel pages read by direct-io
- pnfs/Flexfiles fix to enforce per-mirror stateid only for NFSv4 data
servers
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Merge tag 'nfs-for-4.20-5' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
"This is mainly fallout from the updates to the SUNRPC code that is
being triggered from less common combinations of NFS mount options.
Highlights include:
Stable fixes:
- Fix a page leak when using RPCSEC_GSS/krb5p to encrypt data.
Bugfixes:
- Fix a regression that causes the RPC receive code to hang
- Fix call_connect_status() so that it handles tasks that got
transmitted while queued waiting for the socket lock.
- Fix a memory leak in call_encode()
- Fix several other connect races.
- Fix receive code error handling.
- Use the discard iterator rather than MSG_TRUNC for compatibility
with AF_UNIX/AF_LOCAL sockets.
- nfs: don't dirty kernel pages read by direct-io
- pnfs/Flexfiles fix to enforce per-mirror stateid only for NFSv4
data servers"
* tag 'nfs-for-4.20-5' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
SUNRPC: Don't force a redundant disconnection in xs_read_stream()
SUNRPC: Fix up socket polling
SUNRPC: Use the discard iterator rather than MSG_TRUNC
SUNRPC: Treat EFAULT as a truncated message in xs_read_stream_request()
SUNRPC: Fix up handling of the XDRBUF_SPARSE_PAGES flag
SUNRPC: Fix RPC receive hangs
SUNRPC: Fix a potential race in xprt_connect()
SUNRPC: Fix a memory leak in call_encode()
SUNRPC: Fix leak of krb5p encode pages
SUNRPC: call_connect_status() must handle tasks that got transmitted
nfs: don't dirty kernel pages read by direct-io
flexfiles: enforce per-mirror stateid only for v4 DSes
Pull ARM spectre fix from Russell King:
"Exynos folk noticed that CPU hotplug wasn't working with their kernel
configuration, and have tested this as fixing the problem"
* 'spectre' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: ensure that processor vtables is not lost after boot
Pull ARM fixes from Russell King:
"Some small fixes that have been accumulated:
- Chris Cole noticed that in a SMP environment, the DMA cache
coherence handling can produce undesirable results in a corner
case
- Propagate that fix for ARMv7M as well
- Fix a false positive with source fortification
- Fix an uninitialised return that Nathan Jones spotted"
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8816/1: dma-mapping: fix potential uninitialized return
ARM: 8815/1: V7M: align v7m_dma_inv_range() with v7 counterpart
ARM: 8814/1: mm: improve/fix ARM v7_dma_inv_range() unaligned address handling
ARM: 8806/1: kprobes: Fix false positive with FORTIFY_SOURCE
Currently, the clock duty is set as tLOW/tHIGH = 1/1. For Fast-mode,
tLOW is set to 1.25 us while the I2C spec requires tLOW >= 1.3 us.
tLOW/tHIGH = 5/4 would meet both Standard-mode and Fast-mode:
Standard-mode: tLOW = 5.56 us, tHIGH = 4.44 us
Fast-mode: tLOW = 1.39 us, tHIGH = 1.11 us
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Currently, the clock duty is set as tLOW/tHIGH = 1/1. For Fast-mode,
tLOW is set to 1.25 us while the I2C spec requires tLOW >= 1.3 us.
tLOW/tHIGH = 5/4 would meet both Standard-mode and Fast-mode:
Standard-mode: tLOW = 5.56 us, tHIGH = 4.44 us
Fast-mode: tLOW = 1.39 us, tHIGH = 1.11 us
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
- For a repeated START condition, this controller starts data transfer
immediately after the slave address is written to the TX-FIFO.
- Once the TX-FIFO empty interrupt is asserted, the controller makes
a pause even if additional data are written to the TX-FIFO.
Given those circumstances, the data after a repeated START may not be
transferred if the interrupt is asserted while the TX-FIFO is being
filled up. A more reliable way is to append TX data only in the
interrupt handler.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
