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When fixing the initialization race, we neglected to account for
the fact that debugfs is initialized in wiphy_register(), and
some debugfs things went missing (or rather were rerooted to the
global debugfs root).
Fix this by adding debugfs entries only after wiphy_register().
This requires some changes in the rate control code since it
currently adds debugfs at alloc time, which can no longer be
done after the reordering.
Reported-by: Jouni Malinen <j@w1.fi>
Reported-by: kernel test robot <rong.a.chen@intel.com>
Reported-by: Hauke Mehrtens <hauke@hauke-m.de>
Reported-by: Felix Fietkau <nbd@nbd.name>
Cc: stable@vger.kernel.org
Fixes: 52e04b4ce5d0 ("mac80211: fix race in ieee80211_register_hw()")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Link: https://lore.kernel.org/r/20200423111344.0e00d3346f12.Iadc76a03a55093d94391fc672e996a458702875d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The commit 3c6fd1f07ed0 ("ALSA: hda: Add driver blacklist") added a
new blacklist for the devices that are known to have empty codecs, and
one of the entries was ASUS ROG Zenith II (PCI SSID 1043:874f).
However, it turned out that the very same PCI SSID is used for the
previous model that does have the valid HD-audio codecs and the change
broke the sound on it.
Since the empty codec problem appear on the certain AMD platform (PCI
ID 1022:1487), this patch changes the blacklist matching to both PCI
ID and SSID using pci_match_id(). Also, the entry that was removed by
the previous fix for ASUS ROG Zenigh II is re-added.
Link: https://lore.kernel.org/r/20200424061222.19792-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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0day reports over and over on an powerpc randconfig with clang:
lib/mpi/generic_mpih-mul1.c:37:13: error: invalid use of a cast in a
inline asm context requiring an l-value: remove the cast or build with
-fheinous-gnu-extensions
Remove the superfluous casts, which have been done previously for x86
and arm32 in commit dea632cadd12 ("lib/mpi: fix build with clang") and
commit 7b7c1df2883d ("lib/mpi/longlong.h: fix building with 32-bit
x86").
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://github.com/ClangBuiltLinux/linux/issues/991
Link: https://lore.kernel.org/r/20200413195041.24064-1-natechancellor@gmail.com
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git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
A few resources-related fixes (tidss, dp_mst, scheduler), probe fixes and
DT bindings adjustments.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20200423103224.7hvyr3v7dmuny2bz@gilmour.lan
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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- Tigerlake Workaround - disabling media recompression (Matt)
- Fix RPS interrupts for right GPU frequency (Chris)
- HDCP fix prime check (Oliver)
- Tigerlake Thunderbolt power well fix (Matt)
- Tigerlake DP link training fixes (Jose)
- Documentation sphinx build fix (Jani)
- Fix enable_dpcd_backlight modparam (Lyude)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200423190246.GA1710303@intel.com
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git://people.freedesktop.org/~agd5f/linux into drm-fixes
amd-drm-fixes-5.7-2020-04-22:
amdgpu:
- Fix resume issue on renoir
- Thermal fix for older CI dGPUs
- Fix some fallout from dropping drm load/unload callbacks
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200422224647.617724-1-alexander.deucher@amd.com
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Add build/cross-build dependency check script kselftest_deps.sh
This script does the following:
Usage: ./kselftest_deps.sh -[p] <compiler> [test_name]
kselftest_deps.sh [-p] gcc
kselftest_deps.sh [-p] gcc vm
kselftest_deps.sh [-p] aarch64-linux-gnu-gcc
kselftest_deps.sh [-p] aarch64-linux-gnu-gcc vm
- Should be run in selftests directory in the kernel repo.
- Checks if Kselftests can be built/cross-built on a system.
- Parses all test/sub-test Makefile to find library dependencies.
- Runs compile test on a trivial C file with LDLIBS specified
in the test Makefiles to identify missing library dependencies.
- Prints suggested target list for a system filtering out tests
failed the build dependency check from the TARGETS in Selftests
the main Makefile when optional -p is specified.
- Prints pass/fail dependency check for each tests/sub-test.
- Prints pass/fail targets and libraries.
- Default: runs dependency checks on all tests.
- Optional test name can be specified to check dependencies for it.
To make LDLIBS parsing easier
- change gpio and memfd Makefiles to use the same temporary variable used
to find and add libraries to LDLIBS.
- simlify LDLIBS append logic in intel_pstate/Makefile.
Results from run on x86_64 system (trimmed detailed pass/fail list):
========================================================
Kselftest Dependency Check for [./kselftest_deps.sh gcc ] results...
========================================================
Checked tests defining LDLIBS dependencies
--------------------------------------------------------
Total tests with Dependencies:
55 Pass: 53 Fail: 2
--------------------------------------------------------
Targets passed build dependency check on system:
bpf capabilities filesystems futex gpio intel_pstate membarrier memfd
mqueue net powerpc ptp rseq rtc safesetid timens timers vDSO vm
--------------------------------------------------------
FAIL: netfilter/Makefile dependency check: -lmnl
FAIL: gpio/Makefile dependency check: -lmount
--------------------------------------------------------
Targets failed build dependency check on system:
gpio netfilter
--------------------------------------------------------
Missing libraries system
-lmnl -lmount
--------------------------------------------------------
========================================================
Results from run on x86_64 system with aarch64-linux-gnu-gcc:
(trimmed detailed pass/fail list):
========================================================
Kselftest Dependency Check for [./kselftest_deps.sh aarch64-linux-gnu-gcc ]
results...
========================================================
Checked tests defining LDLIBS dependencies
--------------------------------------------------------
Total tests with Dependencies:
55 Pass: 41 Fail: 14
--------------------------------------------------------
Targets failed build dependency check on system:
bpf capabilities filesystems futex gpio intel_pstate membarrier memfd
mqueue net powerpc ptp rseq rtc timens timers vDSO vm
--------------------------------------------------------
--------------------------------------------------------
Targets failed build dependency check on system:
bpf capabilities gpio memfd mqueue net netfilter safesetid vm
--------------------------------------------------------
Missing libraries system
-lcap -lcap-ng -lelf -lfuse -lmnl -lmount -lnuma -lpopt -lz
--------------------------------------------------------
========================================================
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Without CONFIG_DYNAMIC_FTRACE, some tests get failure because required
filter files(set_ftrace_filter/available_filter_functions/stack_trace_filter)
are missing. So implement check_filter_file() and make all related tests
check required filter files by it.
BTW: set_ftrace_filter and available_filter_functions are introduced together
so just check either of them.
Signed-off-by: Xiao Yang <yangx.jy@cn.fujitsu.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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The change to track net_device_stats per ring to better support SMP
missed updating the rx_dropped member.
The ndo_get_stats method is also needed to combine the results for
ethtool statistics (-S) before filling in the ethtool structure.
Fixes: 37a30b435b92 ("net: bcmgenet: Track per TX/RX rings statistics")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Evidently, at some point in the pre-githistorious past,
drivers/net/ethernet/sgi/meth.h somehow contained some code from the
"snull" driver from the Linux Device Drivers book. A comment crediting
that source, asserting copyright ownership by the LDD authors, and imposing
the LDD2 license terms was duly added to the file.
Any code that may have been derived from snull is long gone, and the
distribution terms are not GPL-compatible. Since the copyright claim is
not based in fact (if it ever was), simply remove it and the distribution
terms as well.
Reported-by: Jan Kiszka <jan.kiszka@siemens.com>
Acked-by: Alessandro Rubini <rubini@gnudd.com>
CC: Ralf Baechle <ralf@linux-mips.org>
CC: Kate Stewart <kstewart@linuxfoundation.org>
CC: "Fendt, Oliver" <oliver.fendt@siemens.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Clear the link partner advertisement, speed, duplex and pause when
the link goes down, as other phylib drivers do. This avoids the
stale link partner, speed and duplex settings being reported via
ethtool.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Soft lock should be taken in place of hard lock.
Signed-off-by: Rohit Maheshwari <rohitm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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x25_lapb_receive_frame() invokes x25_get_neigh(), which returns a
reference of the specified x25_neigh object to "nb" with increased
refcnt.
When x25_lapb_receive_frame() returns, local variable "nb" becomes
invalid, so the refcount should be decreased to keep refcount balanced.
The reference counting issue happens in one path of
x25_lapb_receive_frame(). When pskb_may_pull() returns false, the
function forgets to decrease the refcnt increased by x25_get_neigh(),
causing a refcnt leak.
Fix this issue by calling x25_neigh_put() when pskb_may_pull() returns
false.
Fixes: cb101ed2c3c7 ("x25: Handle undersized/fragmented skbs")
Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Normal there should be checked for nla_put_in6_addr like other
usage in net.
Detected by CoverityScan, CID# 1461639
Fixes: 01cacb00b35c ("mptcp: add netlink-based PM")
Signed-off-by: Bo YU <tsu.yubo@gmail.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The function ixp4xx_eth_probe() does not perform sufficient error
checking after executing devm_ioremap_resource(), which can result
in crashes if a critical error path is encountered.
Fixes: f458ac479777 ("ARM/net: ixp4xx: Pass ethernet physical base as resource")
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add missing newline, as otherwise flushing of the final summary message
to the console log can be delayed.
Fixes: e2219db280e3 ("kunit: add debugfs /sys/kernel/debug/kunit/<suite>/results display")
Signed-off-by: Marco Elver <elver@google.com>
Tested-by: David Gow <davidgow@google.com>
Reviewed-by: Alan Maguire <alan.maguire@oracle.com>
Acked-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull SIGCHLD fix from Eric Biederman:
"Christof Meerwald reported that do_notify_parent has not been
successfully populating si_pid and si_uid for multi-threaded
processes.
This is the one-liner fix. Strictly speaking a one-liner plus
comment"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
signal: Avoid corrupting si_pid and si_uid in do_notify_parent
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In the absence of MC1, the size calculation function
cudbg_mem_region_size() was returing wrong MC size and
resulted in adapter crash. This patch adds new argument
to cudbg_mem_region_size() which will have actual size
and returns error to caller in the absence of MC1.
Fixes: a1c69520f785 ("cxgb4: collect MC memory dump")
Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>"
Signed-off-by: David S. Miller <davem@davemloft.net>
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Sabrina Dubroca says:
====================
net: vxlan/geneve: use the correct nlattr array for extack
The ->validate callbacks for vxlan and geneve have a couple of typos
in extack, where the nlattr array for IFLA_* attributes is used
instead of the link-specific one.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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IFLA_GENEVE_* attributes are in the data array, which is correctly
used when fetching the value, but not when setting the extended
ack. Because IFLA_GENEVE_MAX < IFLA_MAX, we avoid out of bounds
array accesses, but we don't provide a pointer to the invalid
attribute to userspace.
Fixes: a025fb5f49ad ("geneve: Allow configuration of DF behaviour")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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IFLA_VXLAN_* attributes are in the data array, which is correctly
used when fetching the value, but not when setting the extended
ack. Because IFLA_VXLAN_MAX < IFLA_MAX, we avoid out of bounds
array accesses, but we don't provide a pointer to the invalid
attribute to userspace.
Fixes: 653ef6a3e4af ("vxlan: change vxlan_[config_]validate() to use netlink_ext_ack for error reporting")
Fixes: b4d3069783bc ("vxlan: Allow configuration of DF behaviour")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The mlxsw_sp_acl_rulei_create() function is supposed to return an error
pointer from mlxsw_afa_block_create(). The problem is that these
functions both return NULL instead of error pointers. Half the callers
expect NULL and half expect error pointers so it could lead to a NULL
dereference on failure.
This patch changes both of them to return error pointers and changes all
the callers which checked for NULL to check for IS_ERR() instead.
Fixes: 4cda7d8d7098 ("mlxsw: core: Introduce flexible actions support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The MV_V2_PORT_CTRL_SWRST bit in MV_V2_PORT_CTRL is reserved on 88E2110.
Setting SWRST on 88E2110 breaks packets transfer after interface down/up
cycle.
Fixes: 8f48c2ac85ed ("net: marvell10g: soft-reset the PHY when coming out of low power")
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use follow_pfn() to get the PFN of a PFNMAP VMA instead of assuming that
vma->vm_pgoff holds the base PFN of the VMA. This fixes a bug where
attempting to do VFIO_IOMMU_MAP_DMA on an arbitrary PFNMAP'd region of
memory calculates garbage for the PFN.
Hilariously, this only got detected because the first "PFN" calculated
by vaddr_get_pfn() is PFN 0 (vma->vm_pgoff==0), and iommu_iova_to_phys()
uses PA==0 as an error, which triggers a WARN in vfio_unmap_unpin()
because the translation "failed". PFN 0 is now unconditionally reserved
on x86 in order to mitigate L1TF, which causes is_invalid_reserved_pfn()
to return true and in turns results in vaddr_get_pfn() returning success
for PFN 0. Eventually the bogus calculation runs into PFNs that aren't
reserved and leads to failure in vfio_pin_map_dma(). The subsequent
call to vfio_remove_dma() attempts to unmap PFN 0 and WARNs.
WARNING: CPU: 8 PID: 5130 at drivers/vfio/vfio_iommu_type1.c:750 vfio_unmap_unpin+0x2e1/0x310 [vfio_iommu_type1]
Modules linked in: vfio_pci vfio_virqfd vfio_iommu_type1 vfio ...
CPU: 8 PID: 5130 Comm: sgx Tainted: G W 5.6.0-rc5-705d787c7fee-vfio+ #3
Hardware name: Intel Corporation Mehlow UP Server Platform/Moss Beach Server, BIOS CNLSE2R1.D00.X119.B49.1803010910 03/01/2018
RIP: 0010:vfio_unmap_unpin+0x2e1/0x310 [vfio_iommu_type1]
Code: <0f> 0b 49 81 c5 00 10 00 00 e9 c5 fe ff ff bb 00 10 00 00 e9 3d fe
RSP: 0018:ffffbeb5039ebda8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff9a55cbf8d480 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff9a52b771c200
RBP: 0000000000000000 R08: 0000000000000040 R09: 00000000fffffff2
R10: 0000000000000001 R11: ffff9a51fa896000 R12: 0000000184010000
R13: 0000000184000000 R14: 0000000000010000 R15: ffff9a55cb66ea08
FS: 00007f15d3830b40(0000) GS:ffff9a55d5600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000561cf39429e0 CR3: 000000084f75f005 CR4: 00000000003626e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
vfio_remove_dma+0x17/0x70 [vfio_iommu_type1]
vfio_iommu_type1_ioctl+0x9e3/0xa7b [vfio_iommu_type1]
ksys_ioctl+0x92/0xb0
__x64_sys_ioctl+0x16/0x20
do_syscall_64+0x4c/0x180
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f15d04c75d7
Code: <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 81 48 2d 00 f7 d8 64 89 01 48
Fixes: 73fa0d10d077 ("vfio: Type1 IOMMU implementation")
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
- Workaround Apex TPU class code issue that prevents resource
assignment (Bjorn Helgaas)
- Update MAINTAINERS to add Rob Herring for native PCI controller
drivers (Lorenzo Pieralisi)
* tag 'pci-v5.7-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
MAINTAINERS: Add Rob Herring and remove Andy Murray as PCI reviewers
PCI: Move Apex Edge TPU class quirk to fix BAR assignment
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'count' is how much you want written, not the final position.
Moreover, it can legitimately be less than the current position...
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"A few smaller fixes for v5.7-rc3: The majority are fixes for bugs I
found after restarting my randconfig build testing that had been
dormant for a while.
On the Nokia N950/N9 phone, a DT fix is required to address a boot
regression.
For the bcm283x (Raspberry Pi), two DT fixes address minor issues"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
soc: imx8: select SOC_BUS
soc: tegra: fix tegra_pmc_get_suspend_mode definition
soc: fsl: dpio: avoid stack usage warning
soc: fsl: dpio: fix incorrect pointer conversions
ARM: imx: provide v7_cpu_resume() only on ARM_CPU_SUSPEND=y
ARM: dts: bcm283x: Disable dsi0 node
firmware: xilinx: make firmware_debugfs_root static
drivers: soc: xilinx: fix firmware driver Kconfig dependency
ARM: dts: bcm283x: Add cells encoding format to firmware bus
ARM: dts: OMAP3: disable RNG on N950/N9
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Pull nfsd fixes from Chuck Lever:
"The first set of 5.7-rc fixes for NFS server issues.
These were all unresolved at the time the 5.7 window opened, and
needed some additional time to ensure they were correctly addressed.
They are ready now.
At the moment I know of one more urgent issue regarding the NFS
server. A fix has been tested and is under review. I expect to send
one more pull request, containing this fix (which now consists of 3
patches).
Fixes:
- Address several use-after-free and memory leak bugs
- Prevent a backchannel livelock"
* tag 'nfsd-5.7-rc-1' of git://git.linux-nfs.org/projects/cel/cel-2.6:
svcrdma: Fix leak of svc_rdma_recv_ctxt objects
svcrdma: Fix trace point use-after-free race
SUNRPC: Fix backchannel RPC soft lockups
SUNRPC/cache: Fix unsafe traverse caused double-free in cache_purge
nfsd: memory corruption in nfsd4_lock()
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git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat
Pull exfat fixes from Namjae Jeon:
- several bug fixes(broken mount discard option, remount failure,
memory leak)
- add missing MODULE_ALIAS_FS for automatically loading exfat module.
- set s_time_gran and truncate atime with exfat timestamp granularity.
* tag 'for-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
exfat: truncate atimes to 2s granularity
exfat: properly set s_time_gran
exfat: remove 'bps' mount-option
exfat: Unify access to the boot sector
exfat: add missing MODULE_ALIAS_FS()
exfat: Fix discard support
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git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc
Pull remoteproc fixes from Bjorn Andersson:
"This fixes a regression in the probe error path of the Qualcomm modem
remoteproc driver and a mix up of phy_addr_t and dma_addr_t in the
Mediatek SCP control driver"
* tag 'rproc-v5.7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc:
remoteproc: mtk_scp: use dma_addr_t for DMA API
remoteproc: qcom_q6v5_mss: fix q6v5_probe() error paths
remoteproc: qcom_q6v5_mss: fix a bug in q6v5_probe()
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git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
Pull audit fix from Paul Moore:
"One small audit patch fix, fixing a missing length check on input from
userspace, nothing crazy"
* tag 'audit-pr-20200422' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
audit: check the length of userspace generated audit records
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Fix bullet list formatting to eliminate doc warnings:
Documentation/arm64/amu.rst:26: WARNING: Unexpected indentation.
Documentation/arm64/amu.rst:60: WARNING: Unexpected indentation.
Documentation/arm64/amu.rst:81: WARNING: Unexpected indentation.
Documentation/arm64/amu.rst:108: WARNING: Unexpected indentation.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Ionela Voinescu <ionela.voinescu@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Fixed a warning message spelling issue.
Signed-off-by: John Oldman <john.oldman@polehill.co.uk>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Move all zoned mode related code from null_blk_main.c to
null_blk_zoned.c, avoiding an ugly #ifdef in the process.
Rename null_zone_init() into null_init_zoned_dev(), null_zone_exit()
into null_free_zoned_dev() and add the new function
null_register_zoned_dev() to finalize the zoned dev setup before
add_disk().
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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For write operations issued to a null_blk device with zoned mode
enabled, the state and write pointer position of the zone targeted by
the command should be checked before badblocks and memory backing
are handled as the write may be first failed due to, for instance, a
sector position not aligned with the zone write pointer. This order of
checking for errors reflects more accuratly the behavior of physical
zoned devices.
Furthermore, the write pointer position of the target zone should be
incremented only and only if no errors are reported by badblocks and
memory backing handling.
To fix this, introduce the small helper function null_process_cmd()
which execute null_handle_badblocks() and null_handle_memory_backed()
and use this function in null_zone_write() to correctly handle write
requests to zoned null devices depending on the type and state of the
write target zone. Also call this function in null_handle_zoned() to
process read requests to zoned null devices.
null_process_cmd() is called directly from null_handle_cmd() for
regular null devices, resulting in no functional change for these type
of devices. To have symmetric names, the function null_handle_zoned()
is renamed to null_process_zoned_cmd().
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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btrfs_recover_relocation() invokes btrfs_join_transaction(), which joins
a btrfs_trans_handle object into transactions and returns a reference of
it with increased refcount to "trans".
When btrfs_recover_relocation() returns, "trans" becomes invalid, so the
refcount should be decreased to keep refcount balanced.
The reference counting issue happens in one exception handling path of
btrfs_recover_relocation(). When read_fs_root() failed, the refcnt
increased by btrfs_join_transaction() is not decreased, causing a refcnt
leak.
Fix this issue by calling btrfs_end_transaction() on this error path
when read_fs_root() failed.
Fixes: 79787eaab461 ("btrfs: replace many BUG_ONs with proper error handling")
CC: stable@vger.kernel.org # 4.4+
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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btrfs_remove_block_group() invokes btrfs_lookup_block_group(), which
returns a local reference of the block group that contains the given
bytenr to "block_group" with increased refcount.
When btrfs_remove_block_group() returns, "block_group" becomes invalid,
so the refcount should be decreased to keep refcount balanced.
The reference counting issue happens in several exception handling paths
of btrfs_remove_block_group(). When those error scenarios occur such as
btrfs_alloc_path() returns NULL, the function forgets to decrease its
refcnt increased by btrfs_lookup_block_group() and will cause a refcnt
leak.
Fix this issue by jumping to "out_put_group" label and calling
btrfs_put_block_group() when those error scenarios occur.
CC: stable@vger.kernel.org # 4.4+
Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Dave reported a problem where we were panicing with generic/475 with
misc-5.7. This is because we were doing IO after we had stopped all of
the worker threads, because we do the log tree cleanup on roots at drop
time. Cleaning up the log tree will always need to do reads if we
happened to have evicted the blocks from memory.
Because of this simply add a helper to btrfs_cleanup_transaction() that
will go through and drop all of the log roots. This gets run before we
do the close_ctree() work, and thus we are allowed to do any reads that
we would need. I ran this through many iterations of generic/475 with
constrained memory and I did not see the issue.
general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6b6b: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC PTI
CPU: 2 PID: 12359 Comm: umount Tainted: G W 5.6.0-rc7-btrfs-next-58 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
RIP: 0010:btrfs_queue_work+0x33/0x1c0 [btrfs]
RSP: 0018:ffff9cfb015937d8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8eb5e339ed80 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffff8eb5eb33b770 RDI: ffff8eb5e37a0460
RBP: ffff8eb5eb33b770 R08: 000000000000020c R09: ffffffff9fc09ac0
R10: 0000000000000007 R11: 0000000000000000 R12: 6b6b6b6b6b6b6b6b
R13: ffff9cfb00229040 R14: 0000000000000008 R15: ffff8eb5d3868000
FS: 00007f167ea022c0(0000) GS:ffff8eb5fae00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f167e5e0cb1 CR3: 0000000138c18004 CR4: 00000000003606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
btrfs_end_bio+0x81/0x130 [btrfs]
__split_and_process_bio+0xaf/0x4e0 [dm_mod]
? percpu_counter_add_batch+0xa3/0x120
dm_process_bio+0x98/0x290 [dm_mod]
? generic_make_request+0xfb/0x410
dm_make_request+0x4d/0x120 [dm_mod]
? generic_make_request+0xfb/0x410
generic_make_request+0x12a/0x410
? submit_bio+0x38/0x160
submit_bio+0x38/0x160
? percpu_counter_add_batch+0xa3/0x120
btrfs_map_bio+0x289/0x570 [btrfs]
? kmem_cache_alloc+0x24d/0x300
btree_submit_bio_hook+0x79/0xc0 [btrfs]
submit_one_bio+0x31/0x50 [btrfs]
read_extent_buffer_pages+0x2fe/0x450 [btrfs]
btree_read_extent_buffer_pages+0x7e/0x170 [btrfs]
walk_down_log_tree+0x343/0x690 [btrfs]
? walk_log_tree+0x3d/0x380 [btrfs]
walk_log_tree+0xf7/0x380 [btrfs]
? plist_requeue+0xf0/0xf0
? delete_node+0x4b/0x230
free_log_tree+0x4c/0x130 [btrfs]
? wait_log_commit+0x140/0x140 [btrfs]
btrfs_free_log+0x17/0x30 [btrfs]
btrfs_drop_and_free_fs_root+0xb0/0xd0 [btrfs]
btrfs_free_fs_roots+0x10c/0x190 [btrfs]
? do_raw_spin_unlock+0x49/0xc0
? _raw_spin_unlock+0x29/0x40
? release_extent_buffer+0x121/0x170 [btrfs]
close_ctree+0x289/0x2e6 [btrfs]
generic_shutdown_super+0x6c/0x110
kill_anon_super+0xe/0x30
btrfs_kill_super+0x12/0x20 [btrfs]
deactivate_locked_super+0x3a/0x70
Reported-by: David Sterba <dsterba@suse.com>
Fixes: 8c38938c7bb096 ("btrfs: move the root freeing stuff into btrfs_put_root")
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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When cleaning pinned extents right before deleting an unused block group,
we check if there's still a previous transaction running and if so we
increment its reference count before using it for cleaning pinned ranges
in its pinned extents iotree. However we ended up never decrementing the
reference count after using the transaction, resulting in a memory leak.
Fix it by decrementing the reference count.
Fixes: fe119a6eeb6705 ("btrfs: switch to per-transaction pinned extents")
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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https://github.com/Broadcom/stblinux into arm/fixes
This pull request contains Broadcom ARM-based SoCs Device Tree fixes for
5.7, please pull the following:
- Nicolas provides a fix for 55c7c0621078 ("ARM: dts: bcm283x: Fix vc4's
firmware bus DMA limitations") which missed adding proper
#address-cells and #size-cells properties and he also disables the DSI
node which should have been disabled by default but was not.
* tag 'arm-soc/for-5.7/devicetree-fixes' of https://github.com/Broadcom/stblinux:
ARM: dts: bcm283x: Disable dsi0 node
ARM: dts: bcm283x: Add cells encoding format to firmware bus
Link: https://lore.kernel.org/r/20200417171725.1084-1-f.fainelli@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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|
Currently, if tcs_cmd_gen is called with commit=false, then
tcs_cmd::wait is left uninitialized. Since the tcs_cmd structures passed
to this function aren't zero-initialized, then we're left with random
wait values. This results in waiting for completion for more commands
than is necessary, depending on what's on the stack at the time.
Removing the unnecessary if-condition fixes this, but add an explicit
memset of the tcs_cmd structure as well to ensure predictable behavior
if more tcs_cmd members are added in the future.
Fixes: 976daac4a1c5 ("interconnect: qcom: Consolidate interconnect RPMh support")
Signed-off-by: Mike Tipton <mdtipton@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200319231021.18108-1-mdtipton@codeaurora.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Link: https://lore.kernel.org/r/20200415130327.23059-2-georgi.djakov@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga into char-misc-linus
Moritz writes:
FPGA Manager fixes for 5.7-rc1
Here are two (late) fixes for 5.7-rc1 merge window.
Xu's change addresses an issue with a wrong return value.
Shubhrajyoti's change makes the Zynq FPGA driver return -EPROBE_DEFER on
All patches have been reviewed on the mailing list, and have been in the
last few linux-next releases (as part of my for-next branch) without issues.
Signed-off-by: Moritz Fischer <mdf@kernel.org>
* tag 'fpga-fixes-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga:
fpga: dfl: pci: fix return value of cci_pci_sriov_configure
fpga: zynq: Remove clk_get error message for probe defer
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If there is a lot(more then 16) of virtio-console devices
or virtio_console module is reloaded
- buffers 'vtermnos' and 'cons_ops' are overflowed.
In older kernels it overruns spinlock which leads to kernel freezing:
https://bugzilla.redhat.com/show_bug.cgi?id=1786239
To reproduce the issue, you can try simple script that
loads/unloads module. Something like this:
while [ 1 ]
do
modprobe virtio_console
sleep 2
modprobe -r virtio_console
sleep 2
done
Description of problem:
Guest get 'Call Trace' when loading module "virtio_console"
and unloading it frequently - clearly reproduced on kernel-4.18.0:
[ 81.498208] ------------[ cut here ]------------
[ 81.499263] pvqspinlock: lock 0xffffffff92080020 has corrupted value 0xc0774ca0!
[ 81.501000] WARNING: CPU: 0 PID: 785 at kernel/locking/qspinlock_paravirt.h:500 __pv_queued_spin_unlock_slowpath+0xc0/0xd0
[ 81.503173] Modules linked in: virtio_console fuse xt_CHECKSUM ipt_MASQUERADE xt_conntrack ipt_REJECT nft_counter nf_nat_tftp nft_objref nf_conntrack_tftp tun bridge stp llc nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nf_tables_set nft_chain_nat_ipv6 nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 nft_chain_route_ipv6 nft_chain_nat_ipv4 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack nft_chain_route_ipv4 ip6_tables nft_compat ip_set nf_tables nfnetlink sunrpc bochs_drm drm_vram_helper ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm i2c_piix4 pcspkr crct10dif_pclmul crc32_pclmul joydev ghash_clmulni_intel ip_tables xfs libcrc32c sd_mod sg ata_generic ata_piix virtio_net libata crc32c_intel net_failover failover serio_raw virtio_scsi dm_mirror dm_region_hash dm_log dm_mod [last unloaded: virtio_console]
[ 81.517019] CPU: 0 PID: 785 Comm: kworker/0:2 Kdump: loaded Not tainted 4.18.0-167.el8.x86_64 #1
[ 81.518639] Hardware name: Red Hat KVM, BIOS 1.12.0-5.scrmod+el8.2.0+5159+d8aa4d83 04/01/2014
[ 81.520205] Workqueue: events control_work_handler [virtio_console]
[ 81.521354] RIP: 0010:__pv_queued_spin_unlock_slowpath+0xc0/0xd0
[ 81.522450] Code: 07 00 48 63 7a 10 e8 bf 64 f5 ff 66 90 c3 8b 05 e6 cf d6 01 85 c0 74 01 c3 8b 17 48 89 fe 48 c7 c7 38 4b 29 91 e8 3a 6c fa ff <0f> 0b c3 0f 0b 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 48
[ 81.525830] RSP: 0018:ffffb51a01ffbd70 EFLAGS: 00010282
[ 81.526798] RAX: 0000000000000000 RBX: 0000000000000010 RCX: 0000000000000000
[ 81.528110] RDX: ffff9e66f1826480 RSI: ffff9e66f1816a08 RDI: ffff9e66f1816a08
[ 81.529437] RBP: ffffffff9153ff10 R08: 000000000000026c R09: 0000000000000053
[ 81.530732] R10: 0000000000000000 R11: ffffb51a01ffbc18 R12: ffff9e66cd682200
[ 81.532133] R13: ffffffff9153ff10 R14: ffff9e6685569500 R15: ffff9e66cd682000
[ 81.533442] FS: 0000000000000000(0000) GS:ffff9e66f1800000(0000) knlGS:0000000000000000
[ 81.534914] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 81.535971] CR2: 00005624c55b14d0 CR3: 00000003a023c000 CR4: 00000000003406f0
[ 81.537283] Call Trace:
[ 81.537763] __raw_callee_save___pv_queued_spin_unlock_slowpath+0x11/0x20
[ 81.539011] .slowpath+0x9/0xe
[ 81.539585] hvc_alloc+0x25e/0x300
[ 81.540237] init_port_console+0x28/0x100 [virtio_console]
[ 81.541251] handle_control_message.constprop.27+0x1c4/0x310 [virtio_console]
[ 81.542546] control_work_handler+0x70/0x10c [virtio_console]
[ 81.543601] process_one_work+0x1a7/0x3b0
[ 81.544356] worker_thread+0x30/0x390
[ 81.545025] ? create_worker+0x1a0/0x1a0
[ 81.545749] kthread+0x112/0x130
[ 81.546358] ? kthread_flush_work_fn+0x10/0x10
[ 81.547183] ret_from_fork+0x22/0x40
[ 81.547842] ---[ end trace aa97649bd16c8655 ]---
[ 83.546539] general protection fault: 0000 [#1] SMP NOPTI
[ 83.547422] CPU: 5 PID: 3225 Comm: modprobe Kdump: loaded Tainted: G W --------- - - 4.18.0-167.el8.x86_64 #1
[ 83.549191] Hardware name: Red Hat KVM, BIOS 1.12.0-5.scrmod+el8.2.0+5159+d8aa4d83 04/01/2014
[ 83.550544] RIP: 0010:__pv_queued_spin_lock_slowpath+0x19a/0x2a0
[ 83.551504] Code: c4 c1 ea 12 41 be 01 00 00 00 4c 8d 6d 14 41 83 e4 03 8d 42 ff 49 c1 e4 05 48 98 49 81 c4 40 a5 02 00 4c 03 24 c5 60 48 34 91 <49> 89 2c 24 b8 00 80 00 00 eb 15 84 c0 75 0a 41 0f b6 54 24 14 84
[ 83.554449] RSP: 0018:ffffb51a0323fdb0 EFLAGS: 00010202
[ 83.555290] RAX: 000000000000301c RBX: ffffffff92080020 RCX: 0000000000000001
[ 83.556426] RDX: 000000000000301d RSI: 0000000000000000 RDI: 0000000000000000
[ 83.557556] RBP: ffff9e66f196a540 R08: 000000000000028a R09: ffff9e66d2757788
[ 83.558688] R10: 0000000000000000 R11: 0000000000000000 R12: 646e61725f770b07
[ 83.559821] R13: ffff9e66f196a554 R14: 0000000000000001 R15: 0000000000180000
[ 83.560958] FS: 00007fd5032e8740(0000) GS:ffff9e66f1940000(0000) knlGS:0000000000000000
[ 83.562233] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 83.563149] CR2: 00007fd5022b0da0 CR3: 000000038c334000 CR4: 00000000003406e0
Signed-off-by: Andrew Melnychenko <andrew@daynix.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200414191503.3471783-1-andrew@daynix.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
init_r_port can access pc104 array out of bounds. pc104 is a 2D array
defined to have 4 members. Each member has 8 submembers.
* we can have more than 4 (PCI) boards, i.e. [board] can be OOB
* line is not modulo-ed by anything, so the first line on the second
board can be 4, on the 3rd 12 or alike (depending on previously
registered boards). It's zero only on the first line of the first
board. So even [line] can be OOB, quite soon (with the 2nd registered
board already).
This code is broken for ages, so just avoid the OOB accesses and don't
try to fix it as we would need to find out the correct line number. Use
the default: RS232, if we are out.
Generally, if anyone needs to set the interface types, a module parameter
is past the last thing that should be used for this purpose. The
parameters' description says it's for ISA cards anyway.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: stable <stable@vger.kernel.org>
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Link: https://lore.kernel.org/r/20200417105959.15201-2-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
This patch fixes below error reported by coccicheck
drivers/tty/serial/bcm63xx_uart.c:848:2-8: ERROR: missing clk_put;
clk_get on line 842 and execution via conditional on line 846
Fixes: ab4382d27412 ("tty: move drivers/serial/ to drivers/tty/serial/")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1587472306-105155-1-git-send-email-zou_wei@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
The code in vc_do_resize() bounds the memory allocation size to avoid
exceeding MAX_ORDER down the kzalloc() call chain and generating a
runtime warning triggerable from user space. However, not only is it
unwise to use a literal value here, but MAX_ORDER may also be
configurable based on CONFIG_FORCE_MAX_ZONEORDER.
Let's use KMALLOC_MAX_SIZE instead.
Note that prior commit bb1107f7c605 ("mm, slab: make sure that
KMALLOC_MAX_SIZE will fit into MAX_ORDER") the KMALLOC_MAX_SIZE value
could not be relied upon.
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Cc: <stable@vger.kernel.org> # v4.10+
Link: https://lore.kernel.org/r/nycvar.YSQ.7.76.2003281702410.2671@knanqh.ubzr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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|
commit 8ba92cf59335 ("arm64: dts: actions: s700: Add Clock Management Unit")
breaks the UART on Cubieboard7-lite (based on S700 SoC), This is due to the
fact that generic clk routine clk_disable_unused() disables the gate clks,
and that in turns disables OWL UART (but UART driver never enables it). To
prove this theory, Andre suggested to use "clk_ignore_unused" in kernel
commnd line and it worked (Kernel happily lands into RAMFS world :)).
This commit fix this up by adding clk_prepare_enable().
Fixes: 8ba92cf59335 ("arm64: dts: actions: s700: Add Clock Management Unit")
Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1587067917-1400-1-git-send-email-amittomer25@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
Even if the actual screen size is bounded in vc_do_resize(), the unicode
buffer is still a little more than twice the size of the glyph buffer
and may exceed MAX_ORDER down the kmalloc() path. This can be triggered
from user space.
Since there is no point having a physically contiguous buffer here,
let's avoid the above issue as well as reducing pressure on high order
allocations by using vmalloc() instead.
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Cc: <stable@vger.kernel.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://lore.kernel.org/r/nycvar.YSQ.7.76.2003282214210.2671@knanqh.ubzr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
Change a bunch of arguments of wrapper functions which pass signed
integer to an unsigned integer which might cause undefined behaviors
when sign integer overflow.
Signed-off-by: Changming Liu <liu.changm@northeastern.edu>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/BL0PR06MB45482D71EA822D75A0E60A2EE5D50@BL0PR06MB4548.namprd06.prod.outlook.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
Cyril Roelandt reports that his JMicron JMS566 USB-SATA bridge fails
to handle WRITE commands with the FUA bit set, even though it claims
to support FUA. (Oddly enough, a later version of the same bridge,
version 2.03 as opposed to 1.14, doesn't claim to support FUA. Also
oddly, the bridge _does_ support FUA when using the UAS transport
instead of the Bulk-Only transport -- but this device was blacklisted
for uas in commit bc3bdb12bbb3 ("usb-storage: Disable UAS on JMicron
SATA enclosure") for apparently unrelated reasons.)
This patch adds a usb-storage unusual_devs entry with the BROKEN_FUA
flag. This allows the bridge to work properly with usb-storage.
Reported-and-tested-by: Cyril Roelandt <tipecaml@gmail.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/Pine.LNX.4.44L0.2004221613110.11262-100000@iolanthe.rowland.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
