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Currently vfs.rst does not render well into HTML the method descriptions
for VFS data structures. We can improve the HTML output by putting the
description string on a new line following the method name.
Suggested-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Tobin C. Harding <tobin@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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The R40 has a pretty different RTC compared to the other SoCs we've
encountered so far, the most important difference being that it now has
only a single interrupt, compared to the previous SoCs having two.
Let's add a compatible for that.
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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The newer Allwinner SoCs have an embedded RTC supported in Linux, with a
matching Device Tree binding.
Now that we have the DT validation in place, let's convert the device tree
bindings for that controller over to a YAML schemas.
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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The older Allwinner SoCs have an embedded RTC supported in Linux, with a
matching Device Tree binding.
Now that we have the DT validation in place, let's convert the device tree
bindings for that controller over to a YAML schemas.
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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The RTC generic bindings has a bunch of devices that have a pretty simple
binding, with just compatible, reg and optional interrupts properties.
This is exactly what the trivial devices YAML schema has been created for,
except that they can also have the start-year property, but not any other
generic RTC property.
Let's create a schema with those constraints.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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The real time clocks have a bunch of generic properties that are needed in
a device tree. Add a YAML schemas for those.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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Add "Jiangsu HopeRun Software Co., Ltd." to the list of devicetree
vendor prefixes as "hoperun".
Website: http://www.hoperun.com/en
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Just a straightforward bag of fixes for a clean htmldocs build.
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190605095657.23601-2-jani.nikula@intel.com
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The error messages could be more descriptive, but fix these caused by
file moves:
WARNING: kernel-doc './scripts/kernel-doc -rst -enable-lineno -internal
./drivers/gpu/drm/i915/i915_gem_shrinker.c' failed with return code 2
WARNING: kernel-doc './scripts/kernel-doc -rst -enable-lineno -function
User command execution ./drivers/gpu/drm/i915/i915_gem_execbuffer.c'
failed with return code 1
WARNING: kernel-doc './scripts/kernel-doc -rst -enable-lineno -internal
./drivers/gpu/drm/i915/i915_gem_tiling.c' failed with return code 2
WARNING: kernel-doc './scripts/kernel-doc -rst -enable-lineno -function
buffer object tiling ./drivers/gpu/drm/i915/i915_gem_tiling.c'
failed with return code 1
Fixes: 10be98a77c55 ("drm/i915: Move more GEM objects under gem/")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190605095657.23601-1-jani.nikula@intel.com
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amdgpu:
- Revert timeline support until KHR is ready
- Various driver reload fixes
- Refactor clock handling in DC
- Aux fixes for DC
- Bandwidth calculation updates for DC
- Fix documentation due to file rename
- RAS fix
- Fix race in late_init
ttm:
- Allow for better forward progress when there is heavy memory contention
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190606032537.6939-1-alexander.deucher@amd.com
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This file was renamed, but docs weren't updated accordingly.
WARNING: kernel-doc './scripts/kernel-doc -rst -enable-lineno -function PRIME Buffer Sharing ./drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c' failed with return code 1
WARNING: kernel-doc './scripts/kernel-doc -rst -enable-lineno -internal ./drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c' failed with return code 2
Fixes: 2fbd6f94accdbb223a ("drm/amdgpu: rename amdgpu_prime.[ch] into amdgpu_dma_buf.[ch]")
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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drm-misc-next for v5.3:
UAPI Changes:
Cross-subsystem Changes:
- Add devicetree bindings for new panels.
- Convert allwinner's DT bindings to a schema.
- Drop video/hdmi static functions from kernel docs.
- Discard old fence when reserving space in reservation_object_get_fences_rcu.
Core Changes:
- Add missing -ENOMEM handling in edid loading.
- Fix null pointer deref in scheduler.
- Header cleanups, making them self-contained.
- Remove drmP.h inclusion from core.
- Fix make htmldocs warning in scheduler and HDR metadata.
- Fix a few warnings in the uapi header and add a doc section for it.
- Small MST sideband error handling fix.
- Clarify userspace review requirements.
- Clarify implicit/explicit fencing in docs.
- Flush output polling on shutdown.
Driver Changes:
- Small cleanups to stm.
- Add new driver for ST-Ericsson MCDE
- Kconfig fix for meson HDMI.
- Add support for Armadeus ST0700 Adapt panel.
- Add KOE tx14d24vm1bpa panel.
- Update timings for st7701.
- Fix compile error in mcde.
- Big series of tc358767 fixes, and enabling support for IRQ and HPD handling.
- Assorted fixes to sii902x, and implementing HDMI audio support.
- Enable HDR metadata support on amdgpu.
- Assorted fixes to atmel-hlcdc, and add sam9x60 LCD controller support.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/6c43ffa9-11ff-5354-d772-c20fd4d1e3d9@linux.intel.com
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When RST packets are sent because no socket could be found,
it makes sense to use flowlabel_reflect sysctl to decide
if a reflection of the flowlabel is requested.
This extends commit 22b6722bfa59 ("ipv6: Add sysctl for per
namespace flow label reflection"), for some TCP RST packets.
In order to provide full control of this new feature,
flowlabel_reflect becomes a bitmask.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use hverkuil-cisco@xs4all.nl instead of hans.verkuil@cisco.com.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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In certain situations it was seen that we could wedge up the DDC bus
on the HDMI adapter on rk3288. The only way to unwedge was to mux one
of the pins over to GPIO output-driven-low temporarily and then
quickly mux back. Full details can be found in the patch
("drm/bridge/synopsys: dw-hdmi: Add "unwedge" for ddc bus").
Since unwedge requires remuxing the pins, we first need to add to the
bindings so that we can specify what state the pins should be in for
unwedging.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190502225336.206885-1-dianders@chromium.org
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Reading table 4-30, and its footnotes, of the QUICC Engine Block
Reference Manual shows that the set of snum _values_ is not
necessarily just a function of the _number_ of snums, as given in the
fsl,qe-num-snums property.
As an alternative, to make it easier to add support for other variants
of the QUICC engine IP, this introduces a new binding fsl,qe-snums,
which automatically encodes both the number of snums and the actual
values to use.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
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This changes v4l2_pix_format and v4l2_plane_pix_format sizeimage
field description to allow v4l clients to set bigger image size
in case of variable length compressed data.
Presently s5p-mfc and mtk-vcodec codec drivers use that. Lets
make it obvious in the documentation.
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Fix minor typos in the DVB demux documentation.
Signed-off-by: Marc Gonzalez <marc.w.gonzalez@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Add the ability to extract version information from the EC.
Example Output:
$ cd /sys/bus/platform/devices/GOOG000C:00
$ tail build_date build_revision version model_number
==> build_date <==
04/25/19
==> build_revision <==
d2592cae0
==> version <==
00.00.14
==> model_number <==
08B6
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Reviewed-by: Nick Crews <ncrews@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
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The Allwinner SoCs have a clocks controller supported in Linux, with a
matching Device Tree binding.
Now that we have the DT validation in place, let's convert the device tree
bindings for that controller over to a YAML schemas.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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It doesn't seem as if there is any particular need for kvm_lock to be a
spinlock, so convert the lock to a mutex so that sleepable functions (in
particular cond_resched()) can be called while holding it.
Signed-off-by: Junaid Shahid <junaids@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Add the A64 compatible with a fallback to the A83T compatible.
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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WARNING: kernel-doc './scripts/kernel-doc -rst -enable-lineno -function Hardware workarounds ./drivers/gpu/drm/i915/intel_workarounds.c' failed with return code 1
WARNING: kernel-doc './scripts/kernel-doc -rst -enable-lineno -function Logical Rings, Logical Ring Contexts and Execlists ./drivers/gpu/drm/i915/intel_lrc.c' failed with return code 1
WARNING: kernel-doc './scripts/kernel-doc -rst -enable-lineno -internal ./drivers/gpu/drm/i915/intel_lrc.c' failed with return code 2
Fixes: 112ed2d31a46 ("drm/i915: Move GraphicsTechnology files under gt/")
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/bd7dd29b9fb2101c954c8cfb2c3b4efc7d277045.1559656538.git.mchehab+samsung@kernel.org
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The mv88e6250 has port_base_addr 0x8 or 0x18 (depending on
configuration pins), so it constitutes a new family and hence needs
its own compatible string.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It's possible that TCP stack will decide to retransmit a packet
right when that packet's data gets acked, especially in presence
of packet reordering. This means that packets may be in flight,
even though tls_device code has already freed their record state.
Make fill_sg_in() and in turn tls_sw_fallback() not generate a
warning in that case, and quietly proceed to drop such frames.
Make the exit path from tls_sw_fallback() drop monitor friendly,
for users to be able to troubleshoot dropped retransmissions.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Allow guest reads CORE cstate when exposing host CPU power management capabilities
to the guest. PKG cstate is restricted to avoid a guest to get the whole package
information in multi-tenant scenario.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Commit b31c114b (KVM: X86: Provide a capability to disable PAUSE intercepts)
forgot to add the KVM_X86_DISABLE_EXITS_PAUSE into api doc. This patch adds
it.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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There's an ascii artwork at Example 1 whose code-block is not properly
idented, causing those warnings.
Documentation/driver-api/soundwire/locking.rst:50: WARNING: Inconsistent literal block quoting.
Documentation/driver-api/soundwire/locking.rst:51: WARNING: Line block ends without a blank line.
Documentation/driver-api/soundwire/locking.rst:55: WARNING: Inline substitution_reference start-string without end-string.
Documentation/driver-api/soundwire/locking.rst:56: WARNING: Line block ends without a blank line.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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This patch adds documentation for Device-Tree bindings for the
Socionext Synquacer spi driver.
Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
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This is the initial amplifier driver for rt1011.
Signed-off-by: Shuming Fan <shumingf@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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My previous fix miserably failed to catch all of the invocations of
"./scripts/sphinx-pre-install", so we got build errors. Try again with
more caffeine.
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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DMA in H6 is similar to other DMA controller, except it is first which
supports more than 32 request sources and has 16 channels. It also needs
additional clock to be enabled.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Clément Péron <peron.clem@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Add a new section for UAPI structure and helper definitions
in kernel docbook.
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1559567330-25182-2-git-send-email-uma.shankar@intel.com
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struct drm_fb_helper_crtc is now just a wrapper around drm_mode_set so
use that directly instead and attach it as a modeset array onto
drm_client_dev. drm_fb_helper will use this array to store its modesets
which means it will always initialize a drm_client, but it will not
register the client (callbacks) unless it's the generic fbdev emulation.
Code will later be moved to drm_client, so add code there in a new file
drm_client_modeset.c with MIT license to match drm_fb_helper.c.
The modeset connector array size is hardcoded for the cloned case to avoid
having to pass in a value from the driver. A value of 8 is chosen to err
on the safe side. This means that the max connector argument for
drm_fb_helper_init() and drm_fb_helper_fbdev_setup() isn't used anymore,
a todo entry for this is added.
In pan_display_atomic() restore_fbdev_mode_force() is used instead of
restore_fbdev_mode_atomic() because that one will later become internal
to drm_client_modeset.
Locking order:
1. drm_fb_helper->lock
2. drm_master_internal_acquire
3. drm_client_dev->modeset_mutex
v6: Improve commit message (Sam Ravnborg)
v3:
- Use full drm_client_init/release for the modesets (Daniel Vetter)
- drm_client_for_each_modeset: use lockdep_assert_held (Daniel Vetter)
- Hook up to Documentation/gpu/drm-client.rst (Daniel Vetter)
v2:
- Add modesets array to drm_client (Daniel Vetter)
- Use a new file for the modeset code (Daniel Vetter)
- File has to be MIT licensed (Emmanuel Vadot)
- Add copyrights from drm_fb_helper.c
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190531140117.37751-3-noralf@tronnes.org
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The driver is gaining power domain support, so add the new property
to the DT binding and update the examples.
Signed-off-by: Gareth Williams <gareth.williams.jx@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Add binding document for the ethernet on MT7629 SoC.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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add an extra required property "mediatek,physpeed" to sgmiisys to determine
link speed to match up the capability of the target PHY.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Small cosmetic changes to ena.txt
Signed-off-by: Sameeh Jubran <sameehj@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This extends the checkpoint option to allow checkpoint=disable:%u[%]
This allows you to specify what how much of the disk you are willing
to lose access to while mounting with checkpoint=disable. If the amount
lost would be higher, the mount will return -EAGAIN. This can be given
as a percent of total space, or in blocks.
Currently, we need to run garbage collection until the amount of holes
is smaller than the OVP space. With the new option, f2fs can mark
space as unusable up front instead of requiring garbage collection until
the number of holes is small enough.
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Commit 8df39e16877f ("media: dt-bindings: media: Add vendor prefix for
allegro") introduced a new devicetree binding vendors, however with an
improper syntax making the resulting YAML impossible to parse. Let's fix
this.
Fixes: 8df39e16877f ("media: dt-bindings: media: Add vendor prefix for allegro")
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The single user of debugfs_create_u32_array() does not care about the
return value of it, so make it return void as there is no need to do
anything with the return value.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Clarify that pure non-RMW usage of atomic_t is pointless, there is
nothing 'magical' about atomic_set() / atomic_read().
This is something that seems to confuse people, because I happen upon it
semi-regularly.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20190524115231.GN2623@hirez.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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The irq usage and lock dependency rules that if violated a deacklock may
happen are explained in more detail.
Signed-off-by: Yuyang Du <duyuyang@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bvanassche@acm.org
Cc: frederic@kernel.org
Cc: ming.lei@redhat.com
Cc: will.deacon@arm.com
Link: https://lkml.kernel.org/r/20190506081939.74287-17-duyuyang@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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More words are added to lockdep design document regarding key concepts,
which should help people without lockdep experience read and understand
lockdep reports.
Signed-off-by: Yuyang Du <duyuyang@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bvanassche@acm.org
Cc: frederic@kernel.org
Cc: ming.lei@redhat.com
Cc: will.deacon@arm.com
Link: https://lkml.kernel.org/r/20190506081939.74287-3-duyuyang@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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With Eric's patch
commit ba6e798ecf320716780bb6a6088a8d17dcba1d49
Author: Eric Anholt <eric@anholt.net>
Date: Wed Apr 24 11:56:17 2019 -0700
drm/doc: Document expectation that userspace review looks at kernel uAPI.
there's been concerns raised that we expect userspace people to do
in-depth kernel patch review. That's not reasonable, same way kernel
people can't review all the userspace we have. Try to clarify
expectations a bit more.
Cc: Eric Anholt <eric@anholt.net>
Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: contact@emersion.fr
Cc: wayland-devel@lists.freedesktop.org
Acked-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190521084849.27452-1-daniel.vetter@ffwll.ch
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We need the staging fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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we want the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Arnd Bergmann says:
====================
isdn: deprecate non-mISDN drivers
When isdn4linux came up in the context of another patch series, I
remembered that we had discussed removing it a while ago.
It turns out that the suggestion from Karsten Keil wa to remove I4L
in 2018 after the last public ISDN networks are shut down. This has
happened now (with a very small number of exceptions), so I guess it's
time to try again.
We currently have three ISDN stacks in the kernel: the original
isdn4linux (with the hisax driver), the newer CAPI (with four drivers),
and finally the mISDN stack (supporting roughly the same hardware as
hisax).
As far as I can tell, anyone using ISDN with mainline kernel drivers in
the past few years uses mISDN, and this is typically used for voice-only
PBX installations that don't require a public network.
The older stacks support additional features for data networks, but those
typically make no sense any more if there is no network to connect to.
My proposal for this time is to kill off isdn4linux entirely, as it seems
to have been unusable for quite a while. This code has been abandoned
for many years and it does cause problems for treewide maintenance as
it tends to do everything that we try to stop doing.
Birger Harzenetter mentioned that is is still using i4l in order to
make use of the 'divert' feature that is not part of mISDN, but has
otherwise moved on to mISDN for normal operation, like apparently
everyone else.
CAPI in turn is not quite as obsolete, but two of the drivers (avm
and hysdn) don't seem to be used at all, while another one (gigaset)
will stop being maintained as Paul Bolle is no longer able to
test it after the network gets shut down in September.
All three are now moved into drivers/staging to let others speak
up in case there are remaining users.
This leaves Bluetooth CMTP as the only remaining user of CAPI, but
Marcel Holtmann wishes to keep maintaining it.
For the discussion on version 1, see [2]
Unfortunately, Karsten Keil as the maintainer has not participated in
the discussion.
Arnd
[1] https://patchwork.kernel.org/patch/8484861/#17900371
[2] https://listserv.isdn4linux.de/pipermail/isdn4linux/2019-April/thread.html
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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memory.stat and other files already consider subtrees in their output, and
we should too in order to not present an inconsistent interface.
The current situation is fairly confusing, because people interacting with
cgroups expect hierarchical behaviour in the vein of memory.stat,
cgroup.events, and other files. For example, this causes confusion when
debugging reclaim events under low, as currently these always read "0" at
non-leaf memcg nodes, which frequently causes people to misdiagnose breach
behaviour. The same confusion applies to other counters in this file when
debugging issues.
Aggregation is done at write time instead of at read-time since these
counters aren't hot (unlike memory.stat which is per-page, so it does it
at read time), and it makes sense to bundle this with the file
notifications.
After this patch, events are propagated up the hierarchy:
[root@ktst ~]# cat /sys/fs/cgroup/system.slice/memory.events
low 0
high 0
max 0
oom 0
oom_kill 0
[root@ktst ~]# systemd-run -p MemoryMax=1 true
Running as unit: run-r251162a189fb4562b9dabfdc9b0422f5.service
[root@ktst ~]# cat /sys/fs/cgroup/system.slice/memory.events
low 0
high 0
max 7
oom 1
oom_kill 1
As this is a change in behaviour, this can be reverted to the old
behaviour by mounting with the `memory_localevents' flag set. However, we
use the new behaviour by default as there's a lack of evidence that there
are any current users of memory.events that would find this change
undesirable.
akpm: this is a behaviour change, so Cc:stable. THis is so that
forthcoming distros which use cgroup v2 are more likely to pick up the
revised behaviour.
Link: http://lkml.kernel.org/r/20190208224419.GA24772@chrisdown.name
Signed-off-by: Chris Down <chris@chrisdown.name>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix Sphinx warnings in Documentation/vm/hmm.rst by using "::" notation and
inserting a blank line. Also add a missing ';'.
Documentation/vm/hmm.rst:292: WARNING: Unexpected indentation.
Documentation/vm/hmm.rst:300: WARNING: Unexpected indentation.
Link: http://lkml.kernel.org/r/c5995359-7c82-4e47-c7be-b58a4dda0953@infradead.org
Fixes: 023a019a9b4e ("mm/hmm: add default fault flags to avoid the need to pre-fill pfns arrays")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Jérôme Glisse <jglisse@redhat.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Tobin C. Harding
Maxime Ripard
Fabrizio Castro
Jani Nikula
Dave Airlie
Mauro Carvalho Chehab
Eric Dumazet
Hans Verkuil
Douglas Anderson
Rasmus Villemoes
Stanimir Varbanov
Marc Gonzalez
Raul E Rangel
Junaid Shahid
Luca Weiss
Jakub Kicinski
Wanpeng Li
Masahisa Kojima
Shuming Fan
Jonathan Corbet
Jernej Skrabec
Uma Shankar
Noralf Trønnes
Gareth Williams
Sean Wang
Sameeh Jubran
Daniel Rosenberg
Greg Kroah-Hartman
Peter Zijlstra
Yuyang Du
Daniel Vetter
David S. Miller
Chris Down
Randy Dunlap