Added the ability to detect the ELAN0621 touchpad found in some Lenovo
laptops.
Signed-off-by: Adam Wong <adam@adamwong.me>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Merge tag 'media/v4.20-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- Revert a dt-bindings patch whose driver didn't make for 4.20
- fix a kernel oops at vicodec driver
- fix a frame overflow at gspca with was causing regressions on some
cameras, making them to not work
- use the proper type for wait_queue head
- make media request API compatible with 32-bit userspace on 64-bit
kernel
- fix a regression on Kernel 4.19 at dvb-pll
- don't use SPDX headers yet for GFDL
* tag 'media/v4.20-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
media: mediactl docs: Fix licensing message
media: dvb-pll: don't re-validate tuner frequencies
media: dvb-pll: fix tuner frequency ranges
media: Revert "media: dt-bindings: Document the Rockchip VPU bindings"
media: gspca: fix frame overflow error
media: vicodec: fix memchr() kernel oops
media: cedrus: add action item to the TODO
media: media-request: Add compat ioctl
media: Use wait_queue_head_t for media_request
The > comparison should be >= to prevent reading beyond the end of the
clock[] array.
(The clock[] array is allocated in zynqmp_clk_setup() and has
clock_max_idx elements.)
Fixes: 3fde0e16d0 ("drivers: clk: Add ZynqMP clock driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The > comparison should be >= or we write one element beyond the end of
the unit->clk_table[] array.
(The unit->clk_table[] array is allocated in the mmp_clk_init() function
and it has unit->nr_clks elements).
Fixes: 4661fda10f ("clk: mmp: add basic support functions for DT support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
These > comparisons should be >= to prevent reading beyond the end of
of the clk_data->hws[] buffer.
The clk_data->hws[] array is allocated in cp110_syscon_common_probe()
when we do:
cp110_clk_data = devm_kzalloc(dev, sizeof(*cp110_clk_data) +
sizeof(struct clk_hw *) * CP110_CLK_NUM,
GFP_KERNEL);
As you can see, it has CP110_CLK_NUM elements which is equivalent to
CP110_MAX_CORE_CLOCKS + CP110_MAX_GATABLE_CLOCKS.
Fixes: d3da3eaef7 ("clk: mvebu: new driver for Armada CP110 system controller")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Pull IDE fixes from David Miller:
"A missing of_node_put() and a small cleanup"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide:
ide: Change to use DEFINE_SHOW_ATTRIBUTE macro
ide: pmac: add of_node_put()
Pull sparc fixes from David Miller:
1) Some implicit switch fallthrough fixes from Stephen Rothwell.
2) Missing of_node_put() in various sparc drivers from Yangtao Li.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
drivers/tty: add missing of_node_put()
drivers/sbus/char: add of_node_put()
sbus: char: add of_node_put()
sparc32: supress another implicit-fallthrough warning
sparc32: suppress an implicit-fallthrough warning
sparc: suppress the implicit-fallthrough warning
arch/sparc: Use kzalloc_node
For some case, no need to force SoftMin/Max settings for all DPMs.
It's OK to force on some specific DPM only.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
For display config change event only, pre-display config settings are
needed.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
New pptable upload through sysfs interface is supported.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Some power features rely on the driver loaded version so always
load the MC firmware from the driver even if the vbios loaded
a version already.
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Some variants require different MC firmware images.
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
If a USB sound card reports 0 interfaces, an error condition is triggered
and the function usb_audio_probe errors out. In the error path, there was a
use-after-free vulnerability where the memory object of the card was first
freed, followed by a decrement of the number of active chips. Moving the
decrement above the atomic_dec fixes the UAF.
[ The original problem was introduced in 3.1 kernel, while it was
developed in a different form. The Fixes tag below indicates the
original commit but it doesn't mean that the patch is applicable
cleanly. -- tiwai ]
Fixes: 362e4e49ab ("ALSA: usb-audio - clear chip->probing on error exit")
Reported-by: Hui Peng <benquike@gmail.com>
Reported-by: Mathias Payer <mathias.payer@nebelwelt.net>
Signed-off-by: Hui Peng <benquike@gmail.com>
Signed-off-by: Mathias Payer <mathias.payer@nebelwelt.net>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Some new variants require updated firmware.
Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
The error checks on ret for a negative error return always fails because
the return value of iommu_map_sg() is unsigned and can never be negative.
Detected with Coccinelle:
drivers/gpu/drm/msm/msm_iommu.c:69:9-12: WARNING: Unsigned expression
compared with zero: ret < 0
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
CC: Rob Clark <robdclark@gmail.com>
CC: David Airlie <airlied@linux.ie>
CC: Julia Lawall <julia.lawall@lip6.fr>
CC: linux-arm-msm@vger.kernel.org
CC: dri-devel@lists.freedesktop.org
CC: freedreno@lists.freedesktop.org
CC: linux-kernel@vger.kernel.org
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Alpha enable in the pixel format will help in
selecting the blend rule. By keeping alpha enable
to true we are allowing foreground alpha to blend
with the layer. If alpha is don't care, then we
should not allow pixel alpha to be part of blend
equation.
Signed-off-by: Jayant Shekhar <jshekhar@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
'dpu_enc' is a member of 'drm_enc'
And 'drm_enc' got allocated with devm_kzalloc in dpu_encoder_init.
This gives this error message:
./drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c:459:1-6:
WARNING: invalid free of devm_ allocated data
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
There is no need to have the 'struct hdmi_platform_config *hdmi_cfg'
variable static since new value always be assigned before use it.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
If dma_fence_wait fails to wait for a supplied in-fence in
msm_ioctl_gem_submit, make sure we release that in-fence.
Also remove this dma_fence_put() from the 'out' label.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
It causes a WARN in drm_atomic_get_plane_state(), and is not used by
atomic (or dpu).
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Rob Clark <robdclark@gmail.com>
If a command buffer doesn't have any relocs assigned to it there then
is no need to map it in the kernel address space.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
SoCs that contain MDP5 have a top level wrapper called MDSS that
manages locks, power and irq for the sub-blocks within it.
Irq for HDMI is also routed through the MDSS.
Shortly after the Hot Plug Detection (HPD) is enabled in HDMI,
HDMI interrupts are recieved by the MDSS interrupt handler.
However at this moment the HDMI irq is still not mapped to
the MDSS irq domain so the HDMI irq handler cannot be called
to process the interrupts.
This leads to a flood of HDMI interrupts on CPU 0.
If we are lucky to have the HDMI initialization running on a
different CPU, it will eventually map the HDMI irq to MDSS irq
domain, the next HDMI interrupt will be handled by the HDMI irq
handler, the interrupt flood will stop and we will recover.
If the HDMI initialization is running on CPU 0, then it cannot
complete and there is nothing to stop the interrupt flood on
CPU 0. The system is stuck.
Fix this by moving the HPD enablement after the HDMI irq is
mapped to the MDSS irq domain.
Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
While creating display and event threads per crtc, validate
them before setting their priorities.
changes in v2:
- use dev_warn (Abhinav Kumar)
changes in v3:
- fix compilation error
changes in v4:
- Remove Change-Id (Sean Paul)
- Keep logging within 80 char limit (Sean Paul)
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
The DSI encoder sets dssdev->ops->dsi.set_config, which is stored at the
same offset as dssdev->ops->hdmi.set_hdmi_mode. The code in omap_encoder
only checks if dssdev->ops->hdmi.set_hdmi_mode is NULL. Due to the way
union works, it won't be NULL if dsi.set_config is set. This means
dsi_set_config will be called with config=hdmi_mode=false=NULL parameter
resulting in a NULL dereference. Also the dereference happens while
console is locked, so kernel hangs without any debug output without
"fb.lockless_register_fb=1" parameter.
This restructures the code, so that the HDMI mode is only configured
for HDMI output types.
Fixes: 83910ad3f5 ("drm/omap: Move most omap_dss_driver operations to omap_dss_device_ops")
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Tested-by: Tony Lindgren <tony@atomide.com>
[tomi.valkeinen@ti.com: dropped the safeguard]
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181121160916.22017-5-sebastian.reichel@collabora.com
After the changes from 4.20 the DSI encoder tries to find the
attached panel before populating the DSI bus. If the panel is
not found -EPROBE_DEFER is returned, so the DSI bus is never
populated and the panel never added.
Fix this by populating the DSI bus before searching for the
video sink in dsi_init_output().
Fixes: 27d624527d ("drm/omap: dss: Acquire next dssdev at probe time")
Acked-by: Pavel Machek <pavel@ucw.cz>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181121160916.22017-3-sebastian.reichel@collabora.com
panel-dpi used to convey the bus-flags via the videomode, but recent
changes changed the use of videomode to DRM's drm_display_mode which
does not contain bus-flags. This broke panel-dpi, which didn't
explicitly store the bus-flags into dssdev->bus_flags.
Fix this by setting dssdev->bus_flags. Also change the bus_flags type to
u32, as that is the type used in the DRM framework, and we would get a
warning with drm_bus_flags_from_videomode() otherwise.
Fixes: 3fbda31e81 ("drm/omap: Split mode fixup and mode set from encoder enable")
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reported-by: H. Nikolaus Schaller <hns@goldelico.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181126092447.11864-1-tomi.valkeinen@ti.com
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Gunnar Krueger reported a systemd-boot failure and bisected it down to:
e6e094e053 ("x86/acpi, x86/boot: Take RSDP address from boot params if available")
In case a broken boot loader doesn't clear its 'struct boot_params', clear
rsdp_addr in sanitize_boot_params().
Reported-by: Gunnar Krueger <taijian@posteo.de>
Tested-by: Gunnar Krueger <taijian@posteo.de>
Signed-off-by: Juergen Gross <jgross@suse.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bp@alien8.de
Cc: sstabellini@kernel.org
Fixes: e6e094e053 ("x86/acpi, x86/boot: Take RSDP address from boot params if available")
Link: http://lkml.kernel.org/r/20181203103811.17056-1-jgross@suse.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
We've got a regression report for some Thinkpad models (at least
T570s) which shows the too low speaker output volume. The bisection
leaded to the commit 61fcf8ece9 ("ALSA: hda/realtek - Enable Thinkpad
Dock device for ALC298 platform"), and it's basically adding the two
pin configurations for the dock, and looks harmless.
The real culprit seems, though, that the DAC assignment for the
speaker pin is implicitly assumed on these devices, i.e. pin NID 0x14
to be coupled with DAC NID 0x03. When more pins are configured by the
commit above, the auto-parser changes the DAC assignment, and this
resulted in the regression.
As a workaround, just provide the fixed pin / DAC mapping table for
this Thinkpad fixup function. It's no generic solution, but the
problem itself is pretty much device-specific, so must be good
enough.
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1554304
Fixes: 61fcf8ece9 ("ALSA: hda/realtek - Enable Thinkpad Dock device for ALC298 platform")
Cc: <stable@vger.kernel.org>
Reported-and-tested-by: Jeremy Cline <jcline@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
vmbus_process_offer() mustn't call channel->sc_creation_callback()
directly for sub-channels, because sc_creation_callback() ->
vmbus_open() may never get the host's response to the
OPEN_CHANNEL message (the host may rescind a channel at any time,
e.g. in the case of hot removing a NIC), and vmbus_onoffer_rescind()
may not wake up the vmbus_open() as it's blocked due to a non-zero
vmbus_connection.offer_in_progress, and finally we have a deadlock.
The above is also true for primary channels, if the related device
drivers use sync probing mode by default.
And, usually the handling of primary channels and sub-channels can
depend on each other, so we should offload them to different
workqueues to avoid possible deadlock, e.g. in sync-probing mode,
NIC1's netvsc_subchan_work() can race with NIC2's netvsc_probe() ->
rtnl_lock(), and causes deadlock: the former gets the rtnl_lock
and waits for all the sub-channels to appear, but the latter
can't get the rtnl_lock and this blocks the handling of sub-channels.
The patch can fix the multiple-NIC deadlock described above for
v3.x kernels (e.g. RHEL 7.x) which don't support async-probing
of devices, and v4.4, v4.9, v4.14 and v4.18 which support async-probing
but don't enable async-probing for Hyper-V drivers (yet).
The patch can also fix the hang issue in sub-channel's handling described
above for all versions of kernels, including v4.19 and v4.20-rc4.
So actually the patch should be applied to all the existing kernels,
not only the kernels that have 8195b1396e.
Fixes: 8195b1396e ("hv_netvsc: fix deadlock on hotplug")
Cc: stable@vger.kernel.org
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
of_find_node_by_path() acquires a reference to the node
returned by it and that reference needs to be dropped by its caller.
This place is not doing this, so fix it.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It's wrong to mask/unmask highest bit in addr to translate the vaddr
to paddr. We should use PAGE_OFFSET and PHYS_OFFSET.
Wrong implement:
return ((get_pgd()|(1<<31)) - PHYS_OFFSET) & ~1;
When PHYS_OFFSET=0xc0000000 and get_pgd() return 0xe0000000, it'll
return 0x60000000. It's wrong and should be 0xa0000000.
Now correct it to:
return ((get_pgd() - PHYS_OFFSET) & ~1) + PAGE_OFFSET;
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
There are two intc drivers and two clocksource drivers, also include
related dt-bindings' documentations.
Change ren_guo@c-sky.com to guoren@kernel.org
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Volume is a little higher than usual due to a set of gpio fixes for
Davinci platforms that's been around a while, still seemed appropriate
to not hold off until next merge window.
Besides that it's the usual mix of minor fixes, mostly corrections of
small stuff in device trees.
Major stability-related one is the removal of a regulator from DT on
Rock960, since DVFS caused undervoltage. I expect it'll be restored once
they figure out the underlying issue.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Volume is a little higher than usual due to a set of gpio fixes for
Davinci platforms that's been around a while, still seemed appropriate
to not hold off until next merge window.
Besides that it's the usual mix of minor fixes, mostly corrections of
small stuff in device trees.
Major stability-related one is the removal of a regulator from DT on
Rock960, since DVFS caused undervoltage. I expect it'll be restored
once they figure out the underlying issue"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (28 commits)
MAINTAINERS: Remove unused Qualcomm SoC mailing list
ARM: davinci: dm644x: set the GPIO base to 0
ARM: davinci: da830: set the GPIO base to 0
ARM: davinci: dm355: set the GPIO base to 0
ARM: davinci: dm646x: set the GPIO base to 0
ARM: davinci: dm365: set the GPIO base to 0
ARM: davinci: da850: set the GPIO base to 0
gpio: davinci: restore a way to manually specify the GPIO base
ARM: davinci: dm644x: define gpio interrupts as separate resources
ARM: davinci: dm355: define gpio interrupts as separate resources
ARM: davinci: dm646x: define gpio interrupts as separate resources
ARM: davinci: dm365: define gpio interrupts as separate resources
ARM: davinci: da8xx: define gpio interrupts as separate resources
ARM: dts: at91: sama5d2: use the divided clock for SMC
ARM: dts: imx51-zii-rdu1: Remove EEPROM node
ARM: dts: rockchip: Remove @0 from the veyron memory node
arm64: dts: rockchip: Fix PCIe reset polarity for rk3399-puma-haikou.
arm64: dts: qcom: msm8998: Reserve gpio ranges on MTP
arm64: dts: sdm845-mtp: Reserve reserved gpios
arm64: dts: ti: k3-am654: Fix wakeup_uart reg address
...
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Merge tag 'for-linus-4.20a-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
- A revert of a previous commit as it is no longer necessary and has
shown to cause problems in some memory hotplug cases.
- Some small fixes and a minor cleanup.
- A patch for adding better diagnostic data in a very rare failure
case.
* tag 'for-linus-4.20a-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
pvcalls-front: fixes incorrect error handling
Revert "xen/balloon: Mark unallocated host memory as UNUSABLE"
xen: xlate_mmu: add missing header to fix 'W=1' warning
xen/x86: add diagnostic printout to xen_mc_flush() in case of error
x86/xen: cleanup includes in arch/x86/xen/spinlock.c
dmaengine fixes for v4.20-rc5
This contains two fixes to at_hdmac which fixes long standing bus
reported recently on serial transfers causing memory leak. These
fixes were done by Richard Genoud.
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Merge tag 'dmaengine-fix-4.20-rc5' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fixes from Vinod Koul:
"This contains two fixes to at_hdmac which fixes long standing bus
reported recently on serial transfers causing memory leak. These fixes
were done by Richard Genoud"
* tag 'dmaengine-fix-4.20-rc5' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: at_hdmac: fix module unloading
dmaengine: at_hdmac: fix memory leak in at_dma_xlate()
Frank Schreiner reported, that since kernel 4.18 he faces sysfs-warnings
when loading modules on a 32-bit kernel. Here is one such example:
sysfs: cannot create duplicate filename '/module/nfs/sections/.text'
CPU: 0 PID: 98 Comm: modprobe Not tainted 4.18.0-2-parisc #1 Debian 4.18.10-2
Backtrace:
[<1017ce2c>] show_stack+0x3c/0x50
[<107a7210>] dump_stack+0x28/0x38
[<103f900c>] sysfs_warn_dup+0x88/0xac
[<103f8b1c>] sysfs_add_file_mode_ns+0x164/0x1d0
[<103f9e70>] internal_create_group+0x11c/0x304
[<103fa0a0>] sysfs_create_group+0x48/0x60
[<1022abe8>] load_module.constprop.35+0x1f9c/0x23b8
[<1022b278>] sys_finit_module+0xd0/0x11c
[<101831dc>] syscall_exit+0x0/0x14
This warning gets triggered by the fact, that due to commit 24b6c22504
("parisc: Build kernel without -ffunction-sections") we now get multiple .text
sections in the kernel modules for which sysfs_create_group() can't create
multiple virtual files.
This patch works around the problem by re-enabling the -ffunction-sections
compiler option for modules, while keeping it disabled for the non-module
kernel code.
Reported-by: Frank Scheiner <frank.scheiner@web.de>
Fixes: 24b6c22504 ("parisc: Build kernel without -ffunction-sections")
Cc: <stable@vger.kernel.org> # v4.18+
Signed-off-by: Helge Deller <deller@gmx.de>
If an asynchronous connection attempt completes while another task is
in xprt_connect(), then the call to rpc_sleep_on() could end up
racing with the call to xprt_wake_pending_tasks().
So add a second test of the connection state after we've put the
task to sleep and set the XPRT_CONNECTING flag, when we know that there
can be no asynchronous connection attempts still in progress.
Fixes: 0b9e794313 ("SUNRPC: Move the test for XPRT_CONNECTING into...")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If we retransmit an RPC request, we currently end up clobbering the
value of req->rq_rcv_buf.bvec that was allocated by the initial call to
xprt_request_prepare(req).
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
call_encode can be invoked more than once per RPC call. Ensure that
each call to gss_wrap_req_priv does not overwrite pointers to
previously allocated memory.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: stable@kernel.org
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
If a task failed to get the write lock in the call to xprt_connect(), then
it will be queued on xprt->sending. In that case, it is possible for it
to get transmitted before the call to call_connect_status(), in which
case it needs to be handled by call_transmit_status() instead.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Since commit bb21ce0ad2 we always enforce per-mirror stateid.
However, this makes sense only for v4+ servers.
Signed-off-by: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Pull STIBP fallout fixes from Thomas Gleixner:
"The performance destruction department finally got it's act together
and came up with a cure for the STIPB regression:
- Provide a command line option to control the spectre v2 user space
mitigations. Default is either seccomp or prctl (if seccomp is
disabled in Kconfig). prctl allows mitigation opt-in, seccomp
enables the migitation for sandboxed processes.
- Rework the code to handle the conditional STIBP/IBPB control and
remove the now unused ptrace_may_access_sched() optimization
attempt
- Disable STIBP automatically when SMT is disabled
- Optimize the switch_to() logic to avoid MSR writes and invocations
of __switch_to_xtra().
- Make the asynchronous speculation TIF updates synchronous to
prevent stale mitigation state.
As a general cleanup this also makes retpoline directly depend on
compiler support and removes the 'minimal retpoline' option which just
pretended to provide some form of security while providing none"
* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (31 commits)
x86/speculation: Provide IBPB always command line options
x86/speculation: Add seccomp Spectre v2 user space protection mode
x86/speculation: Enable prctl mode for spectre_v2_user
x86/speculation: Add prctl() control for indirect branch speculation
x86/speculation: Prepare arch_smt_update() for PRCTL mode
x86/speculation: Prevent stale SPEC_CTRL msr content
x86/speculation: Split out TIF update
ptrace: Remove unused ptrace_may_access_sched() and MODE_IBRS
x86/speculation: Prepare for conditional IBPB in switch_mm()
x86/speculation: Avoid __switch_to_xtra() calls
x86/process: Consolidate and simplify switch_to_xtra() code
x86/speculation: Prepare for per task indirect branch speculation control
x86/speculation: Add command line control for indirect branch speculation
x86/speculation: Unify conditional spectre v2 print functions
x86/speculataion: Mark command line parser data __initdata
x86/speculation: Mark string arrays const correctly
x86/speculation: Reorder the spec_v2 code
x86/l1tf: Show actual SMT state
x86/speculation: Rework SMT state change
sched/smt: Expose sched_smt_present static key
...
After commit f42ee093be ("bpf/test_run: support cgroup local
storage") the bpf_test_run() function may fail with -ENOMEM, if
it's not possible to allocate memory for a cgroup local storage.
This error shouldn't be mixed with the return value of the testing
program. Let's add an additional argument with a pointer where to
store the testing program's result; and make bpf_test_run()
return either 0 or -ENOMEM.
Fixes: f42ee093be ("bpf/test_run: support cgroup local storage")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Suggested-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Roman Gushchin <guro@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Merge tag 'for-linus-20181201' of git://git.kernel.dk/linux-block
Pull block layer fixes from Jens Axboe:
- Single range elevator discard merge fix, that caused crashes (Ming)
- Fix for a regression in O_DIRECT, where we could potentially lose the
error value (Maximilian Heyne)
- NVMe pull request from Christoph, with little fixes all over the map
for NVMe.
* tag 'for-linus-20181201' of git://git.kernel.dk/linux-block:
block: fix single range discard merge
nvme-rdma: fix double freeing of async event data
nvme: flush namespace scanning work just before removing namespaces
nvme: warn when finding multi-port subsystems without multipathing enabled
fs: fix lost error code in dio_complete
nvme-pci: fix surprise removal
nvme-fc: initialize nvme_req(rq)->ctrl after calling __nvme_fc_init_request()
nvme: Free ctrl device name on init failure
Adam Wong