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"caps.buf" is always NULL here and "caps.size" is always zero. The code
is a no-op and can be removed.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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clk_prepare_enable() may fail, so we should better check its return
value.
Also place the of_node_put() function right after clk_prepare_enable(),
in order to avoid calling of_node_put() twice in case clk_prepare_enable()
fails.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stefan Agner <stefan@agner.ch>
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When devm_kzalloc() fails there is no need to assign an error code
to the 'ret' variable as it will not be used after jumping to the
'err_node_put' label, so just remove the assignment.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Signed-off-by: Stefan Agner <stefan@agner.ch>
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git://people.freedesktop.org/~syeh/repos_linux into drm-fixes
Single vmwgfx boot crasher fix.
* 'drm-vmwgfx-fixes-4_10' of git://people.freedesktop.org/~syeh/repos_linux:
drm/vmwgfx: Fix depth input into drm_mode_legacy_fb_format
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git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next
Summary:
- Add UHD support on TM2/TM2E boards.
. adding interlace mode support and 297MHz pixel clock support
for UHD mode, setting sysreg register in case of HW trigger mode,
and adding SiI8620 MHL bridge device support.
- Fix trigger mode issue on Rinato board.
. On Rinato board, HW trigger mode doesn't work so fix it.
- Some fixup and cleanup.
* 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
drm/exynos: fimd: Do not use HW trigger for exynos3250
drm/exynos/hdmi: add bridge support
drm/exynos/decon5433: signal vblank only on odd fields
drm/exynos/decon5433: add support for interlace modes
drm/exynos/hdmi: fix PLL for 27MHz settings
drm/exynos/hdmi: fix VSI infoframe registers
drm/exynos/hdmi: add 297MHz pixel clock support
drm/exynos: g2d: change platform driver name to 'exynos-drm-g2d'
drm/exynos/decon5433: configure sysreg in case of hardware trigger
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https://github.com/markyzq/kernel-drm-rockchip into drm-next
Single compile fix.
* 'drm-rockchip-next-2017-02-07' of https://github.com/markyzq/kernel-drm-rockchip:
drm/rockchip: cdn-dp: fix cdn-dp complie warning
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If dsi_connector fails to allocate, the exit path via label 'fail'
checks if connector is null, which it always is, so the cleanup
that destroys connector is never going to be called. Hence the
failure path can be more optimally performed by removing this
and just returning ERR_PTR(-ENOMEM). This also removes the need
to initialize connector to NULL, and we can also remove ret too.
Detected by CoverityScan, CID#1399504 ("Logicall Dead Code")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170203195624.7189-1-colin.king@canonical.com
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With CONFIG_SERIO=m, we get a build error for the rmi4-f03 driver,
added in linux-4.10:
warning: (HID_RMI) selects RMI4_F03 which has unmet direct dependencies (!UML && INPUT && RMI4_CORE && (SERIO=y || RMI4_CORE=SERIO))
drivers/input/built-in.o: In function `rmi_f03_attention':
rmi_f03.c:(.text+0xcfe0): undefined reference to `serio_interrupt'
rmi_f03.c:(.text+0xd055): undefined reference to `serio_interrupt'
drivers/input/built-in.o: In function `rmi_f03_remove':
rmi_f03.c:(.text+0xd115): undefined reference to `serio_unregister_port'
drivers/input/built-in.o: In function `rmi_f03_probe':
rmi_f03.c:(.text+0xd209): undefined reference to `__serio_register_port'
An earlier patch tried to fix this, but missed the HID_RMI driver that
does a 'select' on the F03 backend.
This adds a hidden Kconfig symbol that enforces 'serio' to be enabled
when RMI4-F03 is, which covers all cases.
Fixes: d7ddad0acc4a ("Input: synaptics-rmi4 - fix F03 build error when serio is module")
Fixes: c5e8848fc98e ("Input: synaptics-rmi4 - add support for F03")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The vblank hooks in struct drm_driver are deprecated and only meant for
legacy drivers. For modern drivers with DRIVER_MODESET flag, the hooks
in struct drm_crtc_funcs should be used instead.
As the result, exynos_drm_crtc_enable[disable]_vblank() become static
functions. They are moved around a bit to save forward declaration
though. Also while at it, we move one step further to kill
exynos_drm_crtc_from_pipe() completely by updating hdmi_bind() a bit.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Inki Dae <inki.dae@samsung.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-9-git-send-email-shawnguo@kernel.org
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The vblank hooks in struct drm_driver are deprecated and only meant for
legacy drivers. For modern drivers with DRIVER_MODESET flag, the hooks
in struct drm_crtc_funcs should be used instead.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-8-git-send-email-shawnguo@kernel.org
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The vblank hooks in struct drm_driver are deprecated and only meant for
legacy drivers. For modern drivers with DRIVER_MODESET flag, the hooks
in struct drm_crtc_funcs should be used instead. As the result,
functions armada_drm_crtc_enable[disable]_irq() can be static, although
they are moved around a bit to save forward declaration.
The armada_crtc pointer array in struct armada_private is still kept in
there, because armada_debugfs.c still have reference to it.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Russell King <linux@armlinux.org.uk>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-7-git-send-email-shawnguo@kernel.org
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The vblank hooks in struct drm_driver are deprecated and only meant for
legacy drivers. For modern drivers with DRIVER_MODESET flag, the hooks
in struct drm_crtc_funcs should be used instead.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Mali DP Maintainers <malidp@foss.arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-6-git-send-email-shawnguo@kernel.org
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The vblank hooks in struct drm_driver are deprecated and only meant for
legacy drivers. For modern drivers with DRIVER_MODESET flag, the hooks
in struct drm_crtc_funcs should be used instead.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-5-git-send-email-shawnguo@kernel.org
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The function drm_vblank_no_hw_counter() is now only used in core vblank
wrapper code. Let's unexport it by making it a static function.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-4-git-send-email-shawnguo@kernel.org
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Core code already makes drm_driver.get_vblank_counter hook optional by
letting drm_vblank_no_hw_counter be the default implementation for the
function hook. So the drm_vblank_no_hw_counter assignment in the driver
code becomes redundant and can be removed now.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Mali DP Maintainers <malidp@foss.arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Xinliang Liu <z.liuxinliang@hisilicon.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: CK Hu <ck.hu@mediatek.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Mark Yao <mark.yao@rock-chips.com>
Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Eric Anholt <eric@anholt.net>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-3-git-send-email-shawnguo@kernel.org
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The vblank is mostly CRTC specific and implemented as part of CRTC
driver. Let's keep the vblank hooks struct drm_driver for legacy
drivers, and add corresponding hooks in struct drm_crtc_funcs. These
hooks take struct drm_crtc pointer as argument, and will be called by
core vblank handling code for DRIVER_MODESET drivers.
The new hooks get plugged into core by adding wrapper functions for
vblank handling code. The .get_vblank_counter hook is effectively
optional, as we provide drm_vblank_no_hw_counter() as the default
fallback in the wrapper function.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-2-git-send-email-shawnguo@kernel.org
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Noticed that everyone duplicates the same logic here and we could safe
a few lines per driver. Yay for lots of drivers to make such tiny
refactors worth-while!
v2: Forgot to git add everything :(
v3: Actually remove release_fbi (Sean, Emil, Chris) ...
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Noralf Trønnes <noralf@tronnes.org>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170207161603.17611-1-daniel.vetter@ffwll.ch
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While reviewing Chris' patches to properly cancel our async workers I
checked that this happens after the fbdev is already unregistered.
That's the case, but I found a small gap in our docs, fill that in.
Note that I don't explain what release_fbi does, because that function
will disappear in the next patch ...
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170207141050.1129-1-daniel.vetter@ffwll.ch
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Pull networking fixes from David Miller:
1) Load correct firmware in rtl8192ce wireless driver, from Jurij
Smakov.
2) Fix leak of tx_ring and tx_cq due to overwriting in mlx4 driver,
from Martin KaFai Lau.
3) Need to reference count PHY driver module when it is attached, from
Mao Wenan.
4) Don't do zero length vzalloc() in ethtool register dump, from
Stanislaw Gruszka.
5) Defer net_disable_timestamp() to a workqueue to get out of locking
issues, from Eric Dumazet.
6) We cannot drop the SKB dst when IP options refer to them, fix also
from Eric Dumazet.
7) Incorrect packet header offset calculations in ip6_gre, again from
Eric Dumazet.
8) Missing tcp_v6_restore_cb() causes use-after-free, from Eric too.
9) tcp_splice_read() can get into an infinite loop with URG, and hey
it's from Eric once more.
10) vnet_hdr_sz can change asynchronously, so read it once during
decision making in macvtap and tun, from Willem de Bruijn.
11) Can't use kernel stack for DMA transfers in USB networking drivers,
from Ben Hutchings.
12) Handle csum errors properly in UDP by calling the proper destructor,
from Eric Dumazet.
13) For non-deterministic softirq run when scheduling NAPI from a
workqueue in mlx4, from Benjamin Poirier.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (28 commits)
sctp: check af before verify address in sctp_addr_id2transport
sctp: avoid BUG_ON on sctp_wait_for_sndbuf
mlx4: Invoke softirqs after napi_reschedule
udp: properly cope with csum errors
catc: Use heap buffer for memory size test
catc: Combine failure cleanup code in catc_probe()
rtl8150: Use heap buffers for all register access
pegasus: Use heap buffers for all register access
macvtap: read vnet_hdr_size once
tun: read vnet_hdr_sz once
tcp: avoid infinite loop in tcp_splice_read()
hns: avoid stack overflow with CONFIG_KASAN
ipv6: Fix IPv6 packet loss in scenarios involving roaming + snooping switches
ipv6: tcp: add a missing tcp_v6_restore_cb()
nl80211: Fix mesh HT operation check
mac80211: Fix adding of mesh vendor IEs
mac80211: Allocate a sync skcipher explicitly for FILS AEAD
mac80211: Fix FILS AEAD protection in Association Request frame
ip6_gre: fix ip6gre_err() invalid reads
netlabel: out of bound access in cipso_v4_validate()
...
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Commit 6326fec1122c ("mm: Use owner_priv bit for PageSwapCache, valid
when PageSwapBacked") aliased PG_swapcache to PG_owner_priv_1 (and
depending on PageSwapBacked being true).
As a result, the KPF_SWAPCACHE bit in '/proc/kpageflags' should now be
synthesized, instead of being shown on unrelated pages which just happen
to have PG_owner_priv_1 set.
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Commit 6f29a1306131 ("sctp: sctp_addr_id2transport should verify the
addr before looking up assoc") invoked sctp_verify_addr to verify the
addr.
But it didn't check af variable beforehand, once users pass an address
with family = 0 through sockopt, sctp_get_af_specific will return NULL
and NULL pointer dereference will be caused by af->sockaddr_len.
This patch is to fix it by returning NULL if af variable is NULL.
Fixes: 6f29a1306131 ("sctp: sctp_addr_id2transport should verify the addr before looking up assoc")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This commit adds a TODO list to the GPU driver developer's guide. The
content was taken from the DRMJanitors page on the X.Org wiki:
https://www.x.org/wiki/DRMJanitors/
The goal is to track a list of refactorings that would be nice to see
merged eventually. Sometimes these would be encountered during patch
review on the mailing list, and at other times one can come across
these while working in a specific area of code.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170207175113.2793-1-thierry.reding@gmail.com
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If a container already has a group attached, attaching a new group
should just program already created IOMMU tables to the hardware via
the iommu_table_group_ops::set_window() callback.
However commit 6f01cc692a16 ("vfio/spapr: Add a helper to create
default DMA window") did not just simplify the code but also removed
the set_window() calls in the case of attaching groups to a container
which already has tables so it broke VFIO PCI hotplug.
This reverts set_window() bits in tce_iommu_take_ownership_ddw().
Fixes: 6f01cc692a16 ("vfio/spapr: Add a helper to create default DMA window")
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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Reported-by: Jo-Philipp Wich <jo@mein.io>
Fixes: 9aed02feae57bf7 ("ARC: [arcompact] handle unaligned access delay slot")
Cc: linux-kernel@vger.kernel.org
Cc: linux-snps-arc@lists.infradead.org
Cc: stable@vger.kernel.org
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Alexander Popov reported that an application may trigger a BUG_ON in
sctp_wait_for_sndbuf if the socket tx buffer is full, a thread is
waiting on it to queue more data and meanwhile another thread peels off
the association being used by the first thread.
This patch replaces the BUG_ON call with a proper error handling. It
will return -EPIPE to the original sendmsg call, similarly to what would
have been done if the association wasn't found in the first place.
Acked-by: Alexander Popov <alex.popov@linux.com>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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mlx4 may schedule napi from a workqueue. Afterwards, softirqs are not run
in a deterministic time frame and the following message may be logged:
NOHZ: local_softirq_pending 08
The problem is the same as what was described in commit ec13ee80145c
("virtio_net: invoke softirqs after __napi_schedule") and this patch
applies the same fix to mlx4.
Fixes: 07841f9d94c1 ("net/mlx4_en: Schedule napi when RX buffers allocation fails")
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Dmitry reported that UDP sockets being destroyed would trigger the
WARN_ON(atomic_read(&sk->sk_rmem_alloc)); in inet_sock_destruct()
It turns out we do not properly destroy skb(s) that have wrong UDP
checksum.
Thanks again to syzkaller team.
Fixes : 7c13f97ffde6 ("udp: do fwd memory scheduling on dequeue")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Ben Hutchings says:
====================
net: Fix on-stack USB buffers
Allocating USB buffers on the stack is not portable, and no longer
works on x86_64 (with VMAP_STACK enabled as per default). This
series fixes all the instances I could find where USB networking
drivers do that.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Allocating USB buffers on the stack is not portable, and no longer
works on x86_64 (with VMAP_STACK enabled as per default).
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Allocating USB buffers on the stack is not portable, and no longer
works on x86_64 (with VMAP_STACK enabled as per default).
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Allocating USB buffers on the stack is not portable, and no longer
works on x86_64 (with VMAP_STACK enabled as per default).
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
References: https://bugs.debian.org/852556
Reported-by: Lisandro Damián Nicanor Pérez Meyer <lisandro@debian.org>
Tested-by: Lisandro Damián Nicanor Pérez Meyer <lisandro@debian.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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As now gvt init after knowing hw resource info, we can determine vGPU
type from machine size instead of pre-defined value.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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As now gvt init is late after MMIO initialization, use normal MMIO
read function for initial firmware exposure if no available firmware
loaded.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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We only depend on pvinfo register for GVT-g state detection,
not require hypervisor host detect any more.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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Prepare to remove detect_host() hook. Move intel iommu detection early
in intel_gvt_init().
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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Previously intel_gvt_init() was called very early even before
MMIO initialization which had several drawbacks:
- Have to handle MMIO access for initial MMIO state dump if golden
state firmware is not available
- Hypervisor detection should depend on pvinfo only instead of detecting
hypervisor status.
- Don't know hw resource size e.g aperture, ggtt size to determine
for vGPU type, etc.
This trys to move intel_gvt_init() call late after required info
has already been initialized for GVT host.
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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The current virtual edid can only support the resolution up
to 1024x768. Update the virtual edid so that can support more
resoltions. With this new virtual edid, resolution can
be up to 1920x1200.
V2: add detailed modeline description in edid code comments
Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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This reverts commit f6a0dd107ad0c8b59d1c9735eea4b8cb9f460949.
The commit caused a regression on LINE6 Transport that has no control
caps. Although reverting the commit may result back in a spurious
error message for some device again, it's the simplest regression fix,
hence it's taken as is at first. The further code fix will follow
later.
Fixes: f6a0dd107ad0 ("ALSA: line6: Only determine control port properties if needed")
Reported-by: Igor Zinovev <zinigor@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Commit a6f75aa161c5 ("drm/exynos: fimd: add HW trigger support") added
hardware trigger support to the FIMD controller driver. I have tested
but this broke the display in at least the exynos3250 Gear 2. So until
the issue is fixed, avoid using HW trigger for the exynos3250 based
boards and use SW trigger as it was before the mentioned commit.
Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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On TM2/TM2e platforms HDMI output is connected to MHL bridge
SiI8620. To allow configure UltraHD modes on the bridge
and to eliminate unsupported modes this bridge should be
attached to drm_encoder implemented in exynos_hdmi.
Changelog v1:
- fix drm_attach_bridge argument.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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In case of interlace mode irq is generated for odd and even fields, but
vblank should be signaled only for the last emitted field.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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Some registers should be programmed differently in interlace mode.
Additionally IP does not signal stop state properly in interlaced
mode, so warning has been removed.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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Current settings for 27MHz and 27.027MHz do not work. Use the settings from
vendor code instead.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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VSI infoframe registers address space is non-contiguous, so infoframe write
should be split into two chunks.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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297MHz is used by Ultra HD modes.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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The current name is 's5p-g2d', which is identical with the driver
name of the old V4L2 driver in media/platform.
This is probably due to the DRM driver being based on the V4L2
driver when it was initially created. Still the clashing of driver
names is confusing, so rename it to something in line with the
other DRM subdrivers.
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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In case of HW trigger mode, sysreg register should be configured to
enable TE functionality. The patch refactors also trigger setup function.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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Willem de Bruijn says:
====================
read vnet_hdr_sz once
Tuntap devices allow concurrent use and update of field vnet_hdr_sz.
Read the field once to avoid TOCTOU.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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When IFF_VNET_HDR is enabled, a virtio_net header must precede data.
Data length is verified to be greater than or equal to expected header
length tun->vnet_hdr_sz before copying.
Macvtap functions read the value once, but unless READ_ONCE is used,
the compiler may ignore this and read multiple times. Enforce a single
read and locally cached value to avoid updates between test and use.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Suggested-by: Eric Dumazet <edumazet@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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