- Prevent integer overflows from occurring on 32-bit when
converting milliseconds to nanoseconds in the runtime PM
framework and update comments that still refer to jiffies
in it (Vincent Guittot, Ladislav Michl).
- Fix the SCMI cpufreq driver to always use the same frequency
units for arch_set_freq_scale() and make the scale-invariant
load tracking acutally work with this driver (Quentin Perret).
- Fix freeing of dynamic OPPs in the SCPI and SCMI cpufreq drivers
broken during the 4.20 defelopment cycle (Viresh Kumar).
- Prevent the cpufreq core from attempting to return the current
frequency of offline CPUs (Sudeep Holla).
- Add devfreq suspend and resume hooks (missed previously) to the
PM core to make the recently added system suspend and resume
support in devfreq actually work (Lukasz Luba).
- Update MAINTAINERS entries for cpufreq and cpuidle, mostly to add
references to new/current documentation to them (Rafael Wysocki).
- Fix a recently broken reference to cpuidle documentation (Otto
Sabart).
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Merge tag 'pm-5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These fix fallout after starting to use hrtimers in the runtime PM
framework, fix a few cpufreq issues, fix a recently broken reference
to cpuidle documentation, update MAINTAINERS entries for cpufreq and
cpuidle and make the recently added system suspend and resume support
in devfreq actually work.
Specifics:
- Prevent integer overflows from occurring on 32-bit when converting
milliseconds to nanoseconds in the runtime PM framework and update
comments that still refer to jiffies in it (Vincent Guittot,
Ladislav Michl).
- Fix the SCMI cpufreq driver to always use the same frequency units
for arch_set_freq_scale() and make the scale-invariant load
tracking acutally work with this driver (Quentin Perret).
- Fix freeing of dynamic OPPs in the SCPI and SCMI cpufreq drivers
broken during the 4.20 defelopment cycle (Viresh Kumar).
- Prevent the cpufreq core from attempting to return the current
frequency of offline CPUs (Sudeep Holla).
- Add devfreq suspend and resume hooks (missed previously) to the PM
core to make the recently added system suspend and resume support
in devfreq actually work (Lukasz Luba).
- Update MAINTAINERS entries for cpufreq and cpuidle, mostly to add
references to new/current documentation to them (Rafael Wysocki).
- Fix a recently broken reference to cpuidle documentation (Otto
Sabart)"
* tag 'pm-5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM-runtime: Fix autosuspend_delay on 32bits arch
PM-runtime: Fix 'jiffies' in comments after switch to hrtimers
cpufreq: scmi: Fix frequency invariance in slow path
doc: trace: fix reference to cpuidle documentation file
cpufreq: check if policy is inactive early in __cpufreq_get()
cpufreq: scpi/scmi: Fix freeing of dynamic OPPs
cpuidle / Documentation: Update cpuidle MAINTAINERS entry
cpufreq / Documentation: Update cpufreq MAINTAINERS entry
PM: sleep: call devfreq suspend/resume
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Merge tag 'drm-fixes-2019-01-11' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Not a huge amount for rc2, assume the usual quiet period, and rc3 will
be most of it.
amdgpu:
- Powerplay fixes
- Virtual display pinning fixes
- Golden register updates for Vega
- Pitch and gem size validation fixes
- SR-IOV init error fix
- Pagetables in system RAM disable for some Raven system
- DP-MST resume fixes
tc358767 bridge:
- fix to work with displayport connector"
* tag 'drm-fixes-2019-01-11' of git://anongit.freedesktop.org/drm/drm: (26 commits)
drm/amdgpu: disable system memory page tables for now
drm/amdgpu: set WRITE_BURST_LENGTH to 64B to workaround SDMA1 hang
drm/amdgpu: fix CPDMA hang in PRT mode for VEGA20
drm/bridge: tc358767: use DP connector if no panel set
drm/bridge: tc358767: fix output H/V syncs
drm/bridge: tc358767: reject modes which require too much BW
drm/bridge: tc358767: fix initial DP0/1_SRCCTRL value
drm/bridge: tc358767: fix single lane configuration
drm/bridge: tc358767: add defines for DP1_SRCCTRL & PHY_2LANE
drm/bridge: tc358767: add bus flags
drm/dp_mst: Add __must_check to drm_dp_mst_topology_mgr_resume()
drm/amdgpu: Don't fail resume process if resuming atomic state fails
drm/amdgpu: Don't ignore rc from drm_dp_mst_topology_mgr_resume()
drm/amdgpu: validate user GEM object size
drm/amdgpu: validate user pitch alignment
drm/amd/powerplay: drop the unnecessary uclk hard min setting
drm/amd/powerplay: avoid possible buffer overflow
drm/amd/powerplay: create pp_od_clk_voltage device file under OD support
drm/amd/powerplay: update OD support flag for SKU with no OD capabilities
drm/amdgpu: make gfx9 enter into rlc safe mode when set MGCG
...
Try to get reference for ldisc during tty_reopen().
If ldisc present, we don't need to do tty_ldisc_reinit() and lock the
write side for line discipline semaphore.
Effectively, it optimizes fast-path for tty_reopen(), but more
importantly it won't interrupt ongoing IO on the tty as no ldisc change
is needed.
Fixes user-visible issue when tty_reopen() interrupted login process for
user with a long password, observed and reported by Lukas.
Fixes: c96cf923a9 ("tty: Don't block on IO when ldisc change is pending")
Fixes: 83d817f410 ("tty: Hold tty_ldisc_lock() during tty_reopen()")
Cc: Jiri Slaby <jslaby@suse.com>
Reported-by: Lukas F. Hartmann <lukas@mntmn.com>
Tested-by: Lukas F. Hartmann <lukas@mntmn.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch aims to address writeback code problems related to error
paths. In particular it respects EINTR and related error codes and
stores and returns the first error occurred during writeback.
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Acked-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Currently we account for credits in the thread initiating a request
and waiting for a response. The demultiplex thread receives the response,
wakes up the thread and the latter collects credits from the response
buffer and add them to the server structure on the client. This approach
is not accurate, because it may race with reconnect events in the
demultiplex thread which resets the number of credits.
Fix this by moving credit processing to new mid callbacks that collect
credits granted by the server from the response in the demultiplex thread.
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
If a request is cancelled, we can't assume that the server returns
1 credit back. Instead we need to wait for a response and process
the number of credits granted by the server.
Create a separate mid callback for cancelled request, parse the number
of credits in a response buffer and add them to the client's credits.
If the didn't get a response (no response buffer available) assume
0 credits granted. The latter most probably happens together with
session reconnect, so the client's credits are adjusted anyway.
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
If maxBuf is small but non-zero, it could result in a zero sized lock
element array which we would then try and access OOB.
Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
CC: Stable <stable@vger.kernel.org>
The code tries to allocate a contiguous buffer with a size supplied by
the server (maxBuf). This could fail if memory is fragmented since it
results in high order allocations for commonly used server
implementations. It is also wasteful since there are probably
few locks in the usual case. Limit the buffer to be no larger than a
page to avoid memory allocation failures due to fragmentation.
Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This addresses some compile warnings that you can
see depending on configuration settings.
Signed-off-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Currently we hide EINTR code returned from sock_sendmsg()
and return 0 instead. This makes a caller think that we
successfully completed the network operation which is not
true. Fix this by properly returning EINTR to callers.
Cc: <stable@vger.kernel.org>
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:
struct foo {
int stuff;
void *entry[];
};
instance = devm_kzalloc(dev, sizeof(struct foo) + sizeof(void *) * count, GFP_KERNEL);
Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:
instance = devm_kzalloc(dev, struct_size(instance, entry, count), GFP_KERNEL);
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
In kexec_file_load, kaslr-seed property of the current dtb will be deleted
any way before setting a new value if possible. It doesn't matter whether
it exists in the current dtb.
So "ret" should be reset to 0 here.
Fixes: commit 884143f60c ("arm64: kexec_file: add kaslr support")
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
When executed for a PCI_ROOT_COMPLEX type, iort_match_node_callback()
expects the opaque pointer argument to be a PCI bus device. At the
moment rc_dma_get_range() passes the PCI endpoint instead of the bus,
and we've been lucky to have pci_domain_nr(ptr) return 0 instead of
crashing. Pass the bus device to iort_scan_node().
Fixes: 5ac65e8c89 ("ACPI/IORT: Support address size limit for root complexes")
Reported-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Cc: stable@vger.kernel.org
Cc: Will Deacon <will.deacon@arm.com>
Cc: Hanjun Guo <hanjun.guo@linaro.org>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This reverts commit e6d093719e.
Turns out it is not needed at all, a fix for clang was made and accepted
upstream in that project that makes this change unnecessary. So revert
it.
Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
i915 fixes for v5.0-rc2:
- Disable PSR for Apple panels
- Broxton ERR_PTR error state fix
- Kabylake VECS workaround fix
- Unwind failure on pinning the gen7 ppgtt
- GVT workload request allocation fix
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87pnt35z8h.fsf@intel.com
- Fix fb-helper to work correctly with SDL 1.2 bugs.
- Fix lockdep warning in the atomic ioctl and setproperty.
From first pull request:
- Fixes for the tc358767 bridge to work correctly with
tc358867 using a DP connector.
- Make resume work on amdgpu when a DP-MST display is unplugged.
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Merge tag 'drm-misc-fixes-2019-01-10-1' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Second pull request, drm-misc-fixes for v5.0-rc2:
- Fix fb-helper to work correctly with SDL 1.2 bugs.
- Fix lockdep warning in the atomic ioctl and setproperty.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/2cf24f5c-2b1f-befa-8d08-058661146b61@linux.intel.com
* acpi-pci:
ACPI: Fix build failure when CONFIG_NLS is set to 'n'
* acpi-power:
ACPI: power: Skip duplicate power resource references in _PRx
* acpi-misc:
ACPI: NUMA: Use correct type for printing addresses on i386-PAE
perf trace:
Ravi Bangoria:
- Rework PowerPC syscall table generation, now using a .tbl file just like
x86_64 and S/390, also silencing a tools build warning about headers out of
sync with the kernel sources.
tools include uapi:
Arnaldo Carvalho de Melo:
- Sync linux/if_link.h copy with the kernel sources, silencing a build warning.
perf top:
Arnaldo Carvalho de Melo:
- Add 'arch_cpu_idle' to the list of kernel idle symbols, noticed on a Orange
Pi Zero ARM board, just like with other symbols in other arches.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo-5.0-20190110' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/core fixes and improvements from Arnaldo Carvalho de Melo:
perf trace:
Ravi Bangoria:
- Rework PowerPC syscall table generation, now using a .tbl file just like
x86_64 and S/390, also silencing a tools build warning about headers out of
sync with the kernel sources.
tools include uapi:
Arnaldo Carvalho de Melo:
- Sync linux/if_link.h copy with the kernel sources, silencing a build warning.
perf top:
Arnaldo Carvalho de Melo:
- Add 'arch_cpu_idle' to the list of kernel idle symbols, noticed on a Orange
Pi Zero ARM board, just like with other symbols in other arches.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
When a fan is controlled via linear fallback without cstate, we
shouldn't stop polling. Otherwise it won't be adjusted again and
keeps running at an initial crazy pace.
Fixes: 800efb4c28 ("drm/nouveau/drm/therm/fan: add a fallback if no fan control is specified in the vbios")
Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=1103356
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107447
Reported-by: Thomas Blume <thomas.blume@suse.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Martin Peres <martin.peres@free.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Tegra194 supports maximum 64K Bytes transfer per packet.
Tegra186 and prior supports maximum 4K Bytes transfer per packet.
This patch fixes this payload difference between Tegra194 and prior
Tegra chipsets using separate i2c_adapter_quirks.
Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
If adapter->retries is set to a minus value from user space via ioctl,
it will make __i2c_transfer and __i2c_smbus_xfer skip the calling to
adapter->algo->master_xfer and adapter->algo->smbus_xfer that is
registered by the underlying bus drivers, and return value 0 to all the
callers. The bus driver will never be accessed anymore by all users,
besides, the users may still get successful return value without any
error or information log print out.
If adapter->timeout is set to minus value from user space via ioctl,
it will make the retrying loop in __i2c_transfer and __i2c_smbus_xfer
always break after the the first try, due to the time_after always
returns true.
Signed-off-by: Yi Zeng <yizeng@asrmicro.com>
[wsa: minor grammar updates to commit message]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
Since commit e6f6d63ed1 ("drm/msm: add headless gpu device for imx5")
the DRM_MSM symbol can be selected by SOC_IMX5 causing the following
error when building imx_v6_v7_defconfig:
In file included from ../drivers/gpu/drm/msm/adreno/a5xx_gpu.c:17:0:
../include/linux/qcom_scm.h: In function 'qcom_scm_set_cold_boot_addr':
../include/linux/qcom_scm.h:73:10: error: 'ENODEV' undeclared (first use in this function)
return -ENODEV;
Include the <linux/err.h> header file to fix this problem.
Reported-by: kernelci.org bot <bot@kernelci.org>
Fixes: e6f6d63ed1 ("drm/msm: add headless gpu device for imx5")
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Pull NVMe fixes from Christoph.
* 'nvme-5.0' of git://git.infradead.org/nvme:
nvme: don't initlialize ctrl->cntlid twice
nvme: introduce NVME_QUIRK_IGNORE_DEV_SUBNQN
nvme: pad fake subsys NQN vid and ssvid with zeros
nvme-multipath: zero out ANA log buffer
nvme-fabrics: unset write/poll queues for discovery controllers
nvme-tcp: don't ask if controller is fabrics
nvme-tcp: remove dead code
nvme-pci: fix out of bounds access in nvme_cqe_pending
nvme-pci: rerun irq setup on IO queue init errors
nvme-pci: use the same attributes when freeing host_mem_desc_bufs.
nvme-pci: fix the wrong setting of nr_maps
- Powerplay fixes
- Virtual display pinning fixes
- Golden register updates for vega
- Pitch and gem size validation fixes
- Fix for error case in sr-iov init
- Disable page tables in system memory on RV due to issues with IOMMU
reported on some platforms
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190109204336.3315-1-alexander.deucher@amd.com
This tag contains a handful of updates that slipped through the cracks
during the merge window due to the holidays. The fixes are mostly
independent, with the exception of one larger audit-related branch.
There's more information about the audit branch in that merge, the rest
are:
* The BSS has been moved, which shrinks flat images.
* A fix to test-bpf so it compiles on RV64I-based systems.
* A fix to respect the kernel commandline when there is no device tree.
* A fix to prevent CPUs from trying to put themselves to sleep when
bringing down the system.
* Support for MODULE_SECTIONS on RV32I-based systems.
* [new in v2] The addition of an SBI earlycon driver. This is
definately a new feature, but I'd like to include it now because I
dropped this patch when submitting the merge window PR that removed our
EARLY_PRINTK support.
As usual, I've tested this by booting a Fedora-based image on a recent
QEMU (this time just whatever I had lying around).
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Merge tag 'riscv-for-linus-4.21-rc2-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux
Pull RISC-V updates from Palmer Dabbelt:
"This tag contains a handful of updates that slipped through the cracks
during the merge window due to the holidays. The fixes are mostly
independent, with the exception of one larger audit-related branch.
Core RISC-V updates:
- The BSS has been moved, which shrinks flat images.
- A fix to test-bpf so it compiles on RV64I-based systems.
- A fix to respect the kernel commandline when there is no device
tree.
- A fix to prevent CPUs from trying to put themselves to sleep when
bringing down the system.
- Support for MODULE_SECTIONS on RV32I-based systems.
- [new in v2] The addition of an SBI earlycon driver. This is
definately a new feature, but I'd like to include it now because I
dropped this patch when submitting the merge window PR that removed
our EARLY_PRINTK support.
RISC-V audit updates:
- The addition of NR_syscalls into unistd.h, which is necessary for
CONFIG_FTRACE_SYSCALLS.
- The definition of CREATE_TRACE_POINTS so __tracepoint_sys_{enter,exit}
get defined.
- A fix for trace_sys_exit() so we can enable HAVE_SYSCALL_TRACEPOINTS
As usual, I've tested this by booting a Fedora-based image on a recent
QEMU (this time just whatever I had lying around).
* tag 'riscv-for-linus-4.21-rc2-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux:
tty/serial: Add RISC-V SBI earlycon support
riscv: add HAVE_SYSCALL_TRACEPOINTS to Kconfig
riscv: fix trace_sys_exit hook
riscv: define CREATE_TRACE_POINTS in ptrace.c
riscv: define NR_syscalls in unistd.h
riscv: audit: add audit hook in do_syscall_trace_enter/exit()
riscv: add audit support
RISC-V: Support MODULE_SECTIONS mechanism on RV32
MAINTAINERS: SiFive drivers: add myself as a SiFive driver maintainer
MAINTAINERS: SiFive drivers: change the git tree to a SiFive git tree
riscv: don't stop itself in smp_send_stop
arch: riscv: support kernel command line forcing when no DTB passed
tools uapi: fix RISC-V 64-bit support
RISC-V: Make BSS section as the last section in vmlinux.lds.S
- Fixes for the tc358767 bridge to work correctly with
tc358867 using a DP connector.
- Make resume work on amdgpu when a DP-MST display is unplugged.
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Merge tag 'drm-misc-fixes-2019-01-10' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Pull request for drm-misc-fixes for v5.0-rc2:
- Fixes for the tc358767 bridge to work correctly with
tc358867 using a DP connector.
- Make resume work on amdgpu when a DP-MST display is unplugged.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1c47722d-c416-184d-4340-0dc6a614d685@linux.intel.com
In SMB3 protocol every part of the compound chain consumes credits
individually, so we need to call wait_for_free_credits() for each
of the PDUs in the chain. If an operation is interrupted, we must
ensure we return all credits taken from the server structure back.
Without this patch server can sometimes disconnect the session
due to credit mismatches, especially when first operation(s)
are large writes.
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
CC: Stable <stable@vger.kernel.org>
Currently we reset the number of total credits granted by the server
to 1 if the server didn't grant us anything int the response. This
violates the SMB3 protocol - we need to trust the server and use
the credit values from the response. Fix this by removing the
corresponding code.
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
CC: Stable <stable@vger.kernel.org>
Currently for MTU requests we allocate maximum possible credits
in advance and then adjust them according to the request size.
While we were adjusting the number of credits belonging to the
server, we were skipping adjustment of credits belonging to the
request. This patch fixes it by setting request credits to
CreditCharge field value of SMB2 packet header.
Also ask 1 credit more for async read and write operations to
increase parallelism and match the behavior of other operations.
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
CC: Stable <stable@vger.kernel.org>
The most recent "it" allocation is leaked on this error path. I
believe that small allocations always succeed in current kernels so
this doesn't really affect run time.
Fixes: 54be1f6c1c ("cifs: Add DFS cache routines")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This debug message was never shown because it was checking for NULL
returns but extract_hostname() returns error pointers.
Fixes: 93d5cb517d ("cifs: Add support for failover in cifs_reconnect()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Paulo Alcantara <palcantara@suse.de>
A side effect of commit c55191e96c ("arm64: mm: apply r/o permissions
of VM areas to its linear alias as well") is that the linear map is
created with page granularity, which means that transitioning the early
page table from global to non-global mappings when enabling kpti can
take a significant amount of time during boot.
Given that most CPU implementations do not require kpti, this mainly
impacts KASLR builds where kpti is forcefully enabled. However, in these
situations we know early on that non-global mappings are required and
can avoid the use of global mappings from the beginning. The only gotcha
is Cavium erratum #27456, which we must detect based on the MIDR value
of the boot CPU.
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reported-by: John Garry <john.garry@huawei.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
A collection of small fixes for USB-audio, HD-audio and cs46xx.
The USB-audio fixes are for out-of-bound accesses and a regression
in the recent cleanup, while HD-audio fixes are usual device-
specific quirks.
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Merge tag 'sound-5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small fixes for USB-audio, HD-audio and cs46xx.
The USB-audio fixes are for out-of-bound accesses and a regression in
the recent cleanup, while HD-audio fixes are usual device-specific
quirks"
* tag 'sound-5.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek - Disable headset Mic VREF for headset mode of ALC225
ALSA: hda/realtek - Add unplug function into unplug state of Headset Mode for ALC225
ALSA: usb-audio: fix CM6206 register definitions
ALSA: cs46xx: Potential NULL dereference in probe
ALSA: hda/realtek - Support Dell headset mode for New AIO platform
ALSA: usb-audio: Fix an out-of-bound read in create_composite_quirks
ALSA: usb-audio: Always check descriptor sizes in parser code
ALSA: usb-audio: Check mixer unit descriptors more strictly
ALSA: usb-audio: Avoid access before bLength check in build_audio_procunit()
- Fix a bug introduced when exposing MTD devs as NVMEM providers and
check for add_mtd_device() return code everywhere
raw NAND fixes:
- Fix a memory corruption in the QCOM driver
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Merge tag 'mtd/fixes-for-5.0-rc2' of git://git.infradead.org/linux-mtd
Pull mtd fixes from Boris Brezillon:
"Core MTD Fixes:
- Fix a bug introduced when exposing MTD devs as NVMEM providers and
check for add_mtd_device() return code everywhere
raw NAND fixes:
- Fix a memory corruption in the QCOM driver"
* tag 'mtd/fixes-for-5.0-rc2' of git://git.infradead.org/linux-mtd:
mtd: rawnand: qcom: fix memory corruption that causes panic
mtd: Check add_mtd_device() ret code
mtd: Fix the check on nvmem_register() ret code
[BUG]
Linux v5.0-rc1 will fail fstests/btrfs/163 with the following kernel
message:
BTRFS error (device dm-6): dev extent devid 1 physical offset 13631488 len 8388608 is beyond device boundary 0
BTRFS error (device dm-6): failed to verify dev extents against chunks: -117
BTRFS error (device dm-6): open_ctree failed
[CAUSE]
Commit cf90d884b3 ("btrfs: Introduce mount time chunk <-> dev extent
mapping check") introduced strict check on dev extents.
We use btrfs_find_device() with dev uuid and fs uuid set to NULL, and
only dependent on @devid to find the real device.
For seed devices, we call clone_fs_devices() in open_seed_devices() to
allow us search seed devices directly.
However clone_fs_devices() just populates devices with devid and dev
uuid, without populating other essential members, like disk_total_bytes.
This makes any device returned by btrfs_find_device(fs_info, devid,
NULL, NULL) is just a dummy, with 0 disk_total_bytes, and any dev
extents on the seed device will not pass the device boundary check.
[FIX]
This patch will try to verify the device returned by btrfs_find_device()
and if it's a dummy then re-search in seed devices.
Fixes: cf90d884b3 ("btrfs: Introduce mount time chunk <-> dev extent mapping check")
CC: stable@vger.kernel.org # 4.19+
Reported-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
devm_kzalloc(), devm_kstrdup() and devm_kasprintf() all can
fail internal allocation and return NULL. Using any of the assigned
objects without checking is not safe. As this is early in the boot
phase and these allocations really should not fail, any failure here
is probably an indication of a more serious issue so it makes little
sense to try and rollback the previous allocated resources or try to
continue; but rather the probe function is simply exited with -ENOMEM.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Fixes: 684284b64a ("ARM: integrator: add MMCI device to IM-PD1")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
We use syscall.tbl to generate system call table on powerpc.
The unistd.h copy is no longer required now. Remove it.
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: linuxppc-dev@lists.ozlabs.org
Link: http://lkml.kernel.org/r/20190110094936.3132-2-ravi.bangoria@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The DP_DPCD_QUIRK_NO_PSR comment is missing colon causing this
warning when generating kernel documentation.
./include/drm/drm_dp_helper.h:1374: warning: Incorrect use of kernel-doc format: * @DP_DPCD_QUIRK_NO_PSR
Fixes: 1035f4a65f ("drm/i915: Disable PSR in Apple panels")
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181205184850.13218-1-jose.souza@intel.com
(cherry picked from commit ed17b55530)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
commit 4a15c75c42 ("drm/i915: Introduce per-engine workarounds")
refactored the workaround code to have functions per-engine, but didn't
call any of them from logical_xcs_ring_init. Since we do have a non-RCS
workaround for KBL (WaKBLVECSSemaphoreWaitPoll) we do need to call
intel_engine_init_workarounds for non-RCS engines.
Note that whitelist is still RCS-only.
v2: move the call to logical_ring_init (Chris)
Fixes: 4a15c75c42 ("drm/i915: Introduce per-engine workarounds")
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190110013232.8972-2-daniele.ceraolospurio@intel.com
(cherry picked from commit a60acb223f)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
If we fail to pin the ggtt vma slot for the ppgtt page tables, we need
to unwind the locals before reporting the error. Or else on subsequent
attempts to bind the page tables into the ggtt, we will already believe
that the vma has been pinned and continue on blithely. If something else
should happen to be at that location, choas ensues.
Fixes: a2bbf71483 ("drm/i915/gtt: Only keep gen6 page directories pinned while active")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Matthew Auld <matthew.william.auld@gmail.com>
Cc: <stable@vger.kernel.org> # v4.19+
Reviewed-by: Matthew Auld <matthew.william.auld@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181222030623.21710-1-chris@chris-wilson.co.uk
(cherry picked from commit d4de753526)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Although commit fb6f0b64e4 ("drm/i915: Prevent machine hang from
Broxton's vtd w/a and error capture") applied cleanly after a 24 month
hiatus, the code had moved on with new methods for peeking and fetching
the captured gpu info. Make sure we catch all uses of the stashed error
state and avoid dereferencing the error pointer.
v2: Move error pointer determination into i915_gpu_capture_state
v3: Restore early check to avoid capturing and then throwing away
subsequent GPU error states.
Fixes: fb6f0b64e4 ("drm/i915: Prevent machine hang from Broxton's vtd w/a and error capture")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181207110554.19897-1-chris@chris-wilson.co.uk
(cherry picked from commit e6154e4cb8)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
i915 yet don't support PSR in Apple panels, so lets keep it disabled
while we work on that.
v2: Renamed DP_DPCD_QUIRK_PSR_NOT_CURRENTLY_SUPPORTED to
DP_DPCD_QUIRK_NO_PSR (Ville)
v3:
Adding documentation to DP_DPCD_QUIRK_NO_PSR(Dhinakaran and Jani)
Fixed typo in comment of the new quirk entry(Jani)
Fixes: 598c6cfe06 (drm/i915/psr: Enable PSR1 on gen-9+ HW)
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181204003403.23361-1-jose.souza@intel.com
(cherry picked from commit 7c5c641a93)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Linus Torvalds