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We know that the attributes will need updating if there is still a
LAYOUTCOMMIT outstanding.
Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
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The hdmi output in rcar-du uses the i2c slave encoder interface to link
to the adv7511 encoder chip. The kms driver creates encoder and connector
entities that internally uses the drm_encoder_slave_funcs ops provided by
the slave encoder driver.
Change the driver such that it expects a bridge entity instead of a slave
encoder. The hdmi connector code isn't needed anymore as we expect the
adv7511 bridge driver to create/manage the connector.
Note that the kms driver still expects a connector node for hdmi to be
present in DT. This node has no connection to the connector created
by the bridge driver.
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
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While trying to make gpu docs warning free I stumbled over one output
which wasn't following proper compiler error output standards. Fix it
up for more quickfix awesomeness.
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: linux-doc@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Arbitrary X.509 certificates without authority key identifiers (AKIs)
can be added to "trusted" keyrings, including IMA or EVM certs loaded
from the filesystem. Signature verification is currently bypassed for
certs without AKIs.
Trusted keys were recently refactored, and this bug is not present in
4.6.
restrict_link_by_signature should return -ENOKEY (no matching parent
certificate found) if the certificate being evaluated has no AKIs,
instead of bypassing signature checks and returning 0 (new certificate
accepted).
Reported-by: Petko Manolov <petkan@mip-labs.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
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Commit e68503bd68 forgot to set digest_len and thus cause the following
error reported by kexec when launching a crash kernel:
kexec_file_load failed: Bad message
Fixes: e68503bd68 (KEYS: Generalise system_verify_data() to provide access to internal content)
Signed-off-by: Lans Zhang <jia.zhang@windriver.com>
Tested-by: Dave Young <dyoung@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
cc: kexec@lists.infradead.org
cc: linux-crypto@vger.kernel.org
Signed-off-by: James Morris <james.l.morris@oracle.com>
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This fix resolves the following kernel panic if an empty or missing
AuthorityKeyIdentifier is encountered and DEBUG is defined in
pkcs7_verify.c.
[ 459.041989] PKEY: <==public_key_verify_signature() = 0
[ 459.041993] PKCS7: Verified signature 1
[ 459.041995] PKCS7: ==> pkcs7_verify_sig_chain()
[ 459.041999] PKCS7: verify Sample DB Certificate for SCP: 01
[ 459.042002] PKCS7: - issuer Sample KEK Certificate for SCP
[ 459.042014] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 459.042135] IP: [<ffffffff813e7b4c>] pkcs7_verify+0x72c/0x7f0
[ 459.042217] PGD 739e6067 PUD 77719067 PMD 0
[ 459.042286] Oops: 0000 [#1] PREEMPT SMP
[ 459.042328] Modules linked in:
[ 459.042368] CPU: 0 PID: 474 Comm: kexec Not tainted 4.7.0-rc7-WR8.0.0.0_standard+ #18
[ 459.042462] Hardware name: To be filled by O.E.M. To be filled by O.E.M./Aptio CRB, BIOS 5.6.5 10/09/2014
[ 459.042586] task: ffff880073a50000 ti: ffff8800738e8000 task.ti: ffff8800738e8000
[ 459.042675] RIP: 0010:[<ffffffff813e7b4c>] [<ffffffff813e7b4c>] pkcs7_verify+0x72c/0x7f0
[ 459.042784] RSP: 0018:ffff8800738ebd58 EFLAGS: 00010246
[ 459.042845] RAX: 0000000000000000 RBX: ffff880076b7da80 RCX: 0000000000000006
[ 459.042929] RDX: 0000000000000001 RSI: ffffffff81c85001 RDI: ffffffff81ca00a9
[ 459.043014] RBP: ffff8800738ebd98 R08: 0000000000000400 R09: ffff8800788a304c
[ 459.043098] R10: 0000000000000000 R11: 00000000000060ca R12: ffff8800769a2bc0
[ 459.043182] R13: ffff880077358300 R14: 0000000000000000 R15: ffff8800769a2dc0
[ 459.043268] FS: 00007f24cc741700(0000) GS:ffff880074e00000(0000) knlGS:0000000000000000
[ 459.043365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 459.043431] CR2: 0000000000000000 CR3: 0000000073a36000 CR4: 00000000001006f0
[ 459.043514] Stack:
[ 459.043530] 0000000000000000 ffffffbf00000020 31ffffff813e68b0 0000000000000002
[ 459.043644] ffff8800769a2bc0 0000000000000000 00000000007197b8 0000000000000002
[ 459.043756] ffff8800738ebdd8 ffffffff81153fb1 0000000000000000 0000000000000000
[ 459.043869] Call Trace:
[ 459.043898] [<ffffffff81153fb1>] verify_pkcs7_signature+0x61/0x140
[ 459.043974] [<ffffffff813e7f0b>] verify_pefile_signature+0x2cb/0x830
[ 459.044052] [<ffffffff813e8470>] ? verify_pefile_signature+0x830/0x830
[ 459.044134] [<ffffffff81048e25>] bzImage64_verify_sig+0x15/0x20
[ 459.046332] [<ffffffff81046e09>] arch_kexec_kernel_verify_sig+0x29/0x40
[ 459.048552] [<ffffffff810f10e4>] SyS_kexec_file_load+0x1f4/0x6c0
[ 459.050768] [<ffffffff81050e36>] ? __do_page_fault+0x1b6/0x550
[ 459.052996] [<ffffffff8199241f>] entry_SYSCALL_64_fastpath+0x17/0x93
[ 459.055242] Code: e8 0a d6 ff ff 85 c0 0f 88 7a fb ff ff 4d 39 fd 4d 89 7d 08 74 45 4d 89 fd e9 14 fe ff ff 4d 8b 76 08 31 c0 48 c7 c7 a9 00 ca 81 <41> 0f b7 36 49 8d 56 02 e8 d0 91 d6 ff 4d 8b 3c 24 4d 85 ff 0f
[ 459.060535] RIP [<ffffffff813e7b4c>] pkcs7_verify+0x72c/0x7f0
[ 459.063040] RSP <ffff8800738ebd58>
[ 459.065456] CR2: 0000000000000000
[ 459.075998] ---[ end trace c15f0e897cda28dc ]---
Signed-off-by: Lans Zhang <jia.zhang@windriver.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
cc: linux-crypto@vger.kernel.org
cc: kexec@lists.infradead.org
Signed-off-by: James Morris <james.l.morris@oracle.com>
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This document were really old. Update it to reflect the current
status of the IR drivers for TV.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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This section is outdated, but let's add it, after converting
to ReST, and then fix it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert it to ReST and add to media/v4l-drivers book.
As the sections here (and on other docs) are numbered,
let's also make this book auto-numbered.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert it to ReST and add to media/v4l-drivers book.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert it to ReST and add to media/v4l-drivers book.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert it to ReST format and add it at media/v4l-drivers book.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert it to ReST and add to media/v4l-drivers book.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert it to ReST and add it to the media/v4l-drivers book.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert it to ReST and add to media/v4l-drivers book.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert it to ReST and add it to media/v4l-drivers book.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert it to ReST and add to the media/v4l-device book.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert it to ReST and add it to the media/v4l-drivers book.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert pxa_camera to ReST format and add it to the
media/v4l-drivers book.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert pvrusb2 documentation to ReST file and removed the note
about an html version of the documentation, as it is not
shipped inside the Kernel.
Add it to media/v4l-drivers book.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert the omap4_camera documentation to ReST and add it to
the media/v4l-drivers book.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert omap3isp documentation to ReST and add it to the
media/v4l-drivers book.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert the meye documentation to rst and add it to the
media/v4l-drivers book.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert ivtv documentation to rst, update the links there
and add to media/v4l-drivers book.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert the document to rst and add it to the v4l-drivers
book.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert it to rst format and add it to the v4l-drivers book.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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This doc is outdated, and contains information that it is not
true anymore. Update it to reflect the changes that this
driver suffered since I started working on it.
While here, also update Gerd's name.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert the cx88 documentation to rst and add it to the v4l-devices
book
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert the documentation to rst, merge the two files and
add to the index.rst.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert the documentation to rst and add it to the book.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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This file is almost ok, but it needs chapter/sections
and a code-block.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Fix fourcc for it to be correcly parsed by Sphinx.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Move V4L documentation files to media/v4l-drivers. Those aren't
core stuff, so they don't fit at the kAPI document.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Sphinx wants to interpret all literal blocks as being in the chosen
language and complains when an attempt to parse a block fails.
kernel-documentation.rst has a few blocks that are not in C; make that
explicit to shut down the associated warnings.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Adds documentation for V4L drivers.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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The videobuf documentation is almost at rst format: we
just needed to add titles and add some code-blocks there
and that's it.
Also, add a notice that this framework is deprecated.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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This document describes a kapi framework. Move it to the right
place.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Make Sphinx happy with v4l2-framework.rst by putting all C
code inside code-block.
Please note that this is a poor man ReST conversion, as several
of those blocks should actually be converted to use :cpp:func:,
pointing to the kAPI auto-generated documentation.
The problem is that we currently lack kernel-doc documentation
for most of the stuff described there.
So, let's do a poor man's conversion. We should later address
this.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Those documentation are part of the kAPI one. Move to the right
place.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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This document points to some old stuff. Just remove it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Convert the cardlists to ReST format and move them to
Documentation/media/v4l-drivers/
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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If the driver indicates that the watchdog is running, the framework
should feed it until userspace opens the device, regardless of whether
the driver has set max_hw_heartbeat_ms.
This patch only affects the case where wdd->max_hw_heartbeat_ms is
zero, wdd->timeout is non-zero, the watchdog is not active and the
hardware device is running (*):
- If wdd->timeout is zero, watchdog_need_worker() returns false both
before and after this patch, and watchdog_next_keepalive() is not
called.
- If watchdog_active(wdd), the return value from watchdog_need_worker
is also the same as before (namely, hm && t > hm). Hence in that case,
watchdog_next_keepalive() is only called if hm == max_hw_heartbeat_ms
is non-zero, so the change to min_not_zero there is a no-op.
- If the watchdog is not active and the device is not running, we
return false from watchdog_need_worker just as before.
That leaves the watchdog_hw_running(wdd) && !watchdog_active(wdd) &&
wdd->timeout case. Again, it's easy to see that if
wdd->max_hw_heartbeat_ms is non-zero, we return true from
watchdog_need_worker with and without this patch, and the logic in
watchdog_next_keepalive is unchanged. Finally, if
wdd->max_hw_heartbeat_ms is 0, we used to end up in the
cancel_delayed_work branch, whereas with this patch we end up
scheduling a ping timeout_ms/2 from now.
(*) This should imply that no current kernel drivers are affected,
since the only drivers which explicitly set WDOG_HW_RUNNING are
imx2_wdt.c and dw_wdt.c, both of which also provide a non-zero value
for max_hw_heartbeat_ms. The watchdog core also sets WDOG_HW_RUNNING,
but only when the driver doesn't provide ->stop, in which case it
must, according to Documentation/watchdog/watchdog-kernel-api.txt, set
max_hw_heartbeat_ms.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Add support for MCP78S chipset in nv_tco watchdog driver
Signed-off-by: Aleksey Kunitskiy <alexey.kv@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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bcm2835_wdt_set_timeout does exactly what the watchdog framework does
in the absence of a ->set_timeout callback (see watchdog_set_timeout
in watchdog_dev.c), so remove it.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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These are never modified, so might as well be const.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Add watchdog specific driver for Amlogic Meson GXBB SoC.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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For certain parts and some versions of TZ, TZ will reset the chip
when a BARK is triggered even though it was not configured here. So
by default let's configure this BARK time as well.
Signed-off-by: Matthew McClintock <mmcclint@codeaurora.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Commit 0dfd582e026a ("watchdog: qcom: use timer devicetree
binding") moved to use the watchdog as a subset timer
register block. Some devices have the watchdog completely
standalone with slightly different register offsets as
well so let's account for the differences here.
The existing "kpss-standalone" compatible string doesn't
make it entirely clear exactly what the device is so
rename to "kpss-wdt" to reflect watchdog timer
functionality. Also update ipq4019 DTS with an SoC
specific compatible.
Signed-off-by: Matthew McClintock <mmcclint@codeaurora.org>
Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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