Unfortunately sofar we have been unable to get permission to redistribute
icn8505 touchscreen firmwares in linux-firmware. This means that people
need to find and install the firmware themselves before the touchscreen
will work
Some UEFI/x86 tablets with an icn8505 touchscreen have a copy of the fw
embedded in their UEFI boot-services code.
This commit makes the icn8505 driver use the new firmware_request_platform
function, which will fallback to looking for such an embedded copy when
direct filesystem lookup fails. This will make the touchscreen work OOTB
on devices where there is a fw copy embedded in the UEFI code.
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200115163554.101315-9-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Unfortunately sofar we have been unable to get permission to redistribute
Silead touchscreen firmwares in linux-firmware. This means that people
need to find and install the firmware themselves before the touchscreen
will work
Some UEFI/x86 tablets with a Silead touchscreen have a copy of the fw
embedded in their UEFI boot-services code.
This commit makes the silead driver use the new firmware_request_platform
function, which will fallback to looking for such an embedded copy when
direct filesystem lookup fails. This will make the touchscreen work OOTB
on devices where there is a fw copy embedded in the UEFI code.
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200115163554.101315-8-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add tests cases for checking the new firmware_request_platform api.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Link: https://lore.kernel.org/r/20200115163554.101315-7-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add support for testing firmware_request_platform through a new
trigger_request_platform trigger.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Link: https://lore.kernel.org/r/20200115163554.101315-6-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In some cases the platform's main firmware (e.g. the UEFI fw) may contain
an embedded copy of device firmware which needs to be (re)loaded into the
peripheral. Normally such firmware would be part of linux-firmware, but in
some cases this is not feasible, for 2 reasons:
1) The firmware is customized for a specific use-case of the chipset / use
with a specific hardware model, so we cannot have a single firmware file
for the chipset. E.g. touchscreen controller firmwares are compiled
specifically for the hardware model they are used with, as they are
calibrated for a specific model digitizer.
2) Despite repeated attempts we have failed to get permission to
redistribute the firmware. This is especially a problem with customized
firmwares, these get created by the chip vendor for a specific ODM and the
copyright may partially belong with the ODM, so the chip vendor cannot
give a blanket permission to distribute these.
This commit adds a new platform fallback mechanism to the firmware loader
which will try to lookup a device fw copy embedded in the platform's main
firmware if direct filesystem lookup fails.
Drivers which need such embedded fw copies can enable this fallback
mechanism by using the new firmware_request_platform() function.
Note that for now this is only supported on EFI platforms and even on
these platforms firmware_fallback_platform() only works if
CONFIG_EFI_EMBEDDED_FIRMWARE is enabled (this gets selected by drivers
which need this), in all other cases firmware_fallback_platform() simply
always returns -ENOENT.
Reported-by: Dave Olsthoorn <dave@bewaar.me>
Suggested-by: Peter Jones <pjones@redhat.com>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200115163554.101315-5-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable shared branch to ease the integration of Hans's series to support
device firmware loaded from EFI boot service memory regions.
[PATCH v12 00/10] efi/firmware/platform-x86: Add EFI embedded fw support
https://lore.kernel.org/linux-efi/20200115163554.101315-1-hdegoede@redhat.com/
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Merge tag 'stable-shared-branch-for-driver-tree' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi into driver-core-next
Ard writes:
Stable shared branch between EFI and driver tree
Stable shared branch to ease the integration of Hans's series to support
device firmware loaded from EFI boot service memory regions.
[PATCH v12 00/10] efi/firmware/platform-x86: Add EFI embedded fw support
https://lore.kernel.org/linux-efi/20200115163554.101315-1-hdegoede@redhat.com/
* tag 'stable-shared-branch-for-driver-tree' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
efi: Add embedded peripheral firmware support
efi: Export boot-services code and data as debugfs-blobs
This reverts commit 8ba88804bb as a better
version is already in Rafael's tree, sorry about that.
Reported-by: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The component framework reuses the devres managed functions. There is no
need to specify an unbind() callback if the driver only wants to release
the devres managed resources. The bind/unbind is like the probe/remove
pair. The bind/probe is necessary and the unbind/remove is optional.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20200227104547.30085-1-m.felsch@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
No one checks the return value of debugfs_create_file_size, as it's not
needed, so make the return value void, so that no one tries to do so in
the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20200309163640.237984-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fw_sysfs_wait_timeout may return err with -ENOENT
at fw_load_sysfs_fallback and firmware is already
in abort status, no need to abort again, so skip it.
This issue is caused by concurrent situation like below:
when thread 1# wait firmware loading, thread 2# may write
-1 to abort loading and wakeup thread 1# before it timeout.
so wait_for_completion_killable_timeout of thread 1# would
return remaining time which is != 0 with fw_st->status
FW_STATUS_ABORTED.And the results would be converted into
err -ENOENT in __fw_state_wait_common and transfered to
fw_load_sysfs_fallback in thread 1#.
The -ENOENT means firmware status is already at ABORTED,
so fw_load_sysfs_fallback no need to get mutex to abort again.
-----------------------------
thread 1#,wait for loading
fw_load_sysfs_fallback
->fw_sysfs_wait_timeout
->__fw_state_wait_common
->wait_for_completion_killable_timeout
in __fw_state_wait_common,
...
93 ret = wait_for_completion_killable_timeout(&fw_st->completion, timeout);
94 if (ret != 0 && fw_st->status == FW_STATUS_ABORTED)
95 return -ENOENT;
96 if (!ret)
97 return -ETIMEDOUT;
98
99 return ret < 0 ? ret : 0;
-----------------------------
thread 2#, write -1 to abort loading
firmware_loading_store
->fw_load_abort
->__fw_load_abort
->fw_state_aborted
->__fw_state_set
->complete_all
in __fw_state_set,
...
111 if (status == FW_STATUS_DONE || status == FW_STATUS_ABORTED)
112 complete_all(&fw_st->completion);
-------------------------------------------
BTW,the double abort issue would not cause kernel panic or create an issue,
but slow down it sometimes.The change is just a minor optimization.
Signed-off-by: Junyong Sun <sunjunyong@xiaomi.com>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Link: https://lore.kernel.org/r/1583202968-28792-1-git-send-email-sunjunyong@xiaomi.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Currently there are only 10 bytes to store the cpu-topology 'name'
information. Only 10 bytes copied into cluster/thread/core names.
If the cluster ID exceeds 2-digit number, it will result in the data
corruption, and ending up in a dead loop in the parsing routines. The
same applies to the thread names with more that 3-digit number.
This issue was found using the boundary tests under virtualised
environment like QEMU.
Let us increase the buffer to fix such potential issues.
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Zeng Tao <prime.zeng@hisilicon.com>
Link: https://lore.kernel.org/r/1583294092-5929-1-git-send-email-prime.zeng@hisilicon.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The CPU freqs are not supposed to change before cpufreq policies
properly registered, meaning that they should be used to calculate the
initial CPU capacities.
Doing this helps choosing the best CPU during early boot, especially
for the initramfs decompressing.
There's no functional changes for non-clk CPU DVFS mechanism.
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Link: https://lore.kernel.org/r/20200113034815.25924-1-jeffy.chen@rock-chips.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use the simpler sprintf() instead of snprintf() or scnprintf() in a
single-shot sysfs output callbacks where you are very sure that it
won't go over PAGE_SIZE buffer limit.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20200311080207.12046-3-tiwai@suse.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Since snprintf() returns the would-be-output size instead of the
actual output size, the succeeding calls may go beyond the given
buffer limit. Fix it by replacing with scnprintf().
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20200311080207.12046-2-tiwai@suse.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We've been accruing these for a couple of weeks, so the batch is a bit
bigger than usual.
Largest delta is due to a led-bl driver that is added -- there was
a miscommunication before the merge window and the driver didn't make it
in. Due to this, the platforms needing it regressed. At this point, it
seemed easier to add the new driver than unwind the changes.
Besides that, there are a handful of various fixes:
- AMD tee memory leak fix
- A handful of fixlets for i.MX SCU communication
- A few maintainers woke up and realized DEBUG_FS had been missing for
a while, so a few updates of that.
... and the usual collection of smaller fixes to various platforms.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Olof Johansson:
"We've been accruing these for a couple of weeks, so the batch is a bit
bigger than usual.
Largest delta is due to a led-bl driver that is added -- there was a
miscommunication before the merge window and the driver didn't make it
in. Due to this, the platforms needing it regressed. At this point, it
seemed easier to add the new driver than unwind the changes.
Besides that, there are a handful of various fixes:
- AMD tee memory leak fix
- A handful of fixlets for i.MX SCU communication
- A few maintainers woke up and realized DEBUG_FS had been missing
for a while, so a few updates of that.
... and the usual collection of smaller fixes to various platforms"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (37 commits)
ARM: socfpga_defconfig: Add back DEBUG_FS
arm64: dts: socfpga: agilex: Fix gmac compatible
ARM: bcm2835_defconfig: Explicitly restore CONFIG_DEBUG_FS
arm64: dts: meson: fix gxm-khadas-vim2 wifi
arm64: dts: meson-sm1-sei610: add missing interrupt-names
ARM: meson: Drop unneeded select of COMMON_CLK
ARM: dts: bcm2711: Add pcie0 alias
ARM: dts: bcm283x: Add missing properties to the PWR LED
tee: amdtee: fix memory leak in amdtee_open_session()
ARM: OMAP2+: Fix compile if CONFIG_HAVE_ARM_SMCCC is not set
arm: dts: dra76x: Fix mmc3 max-frequency
ARM: dts: dra7: Add "dma-ranges" property to PCIe RC DT nodes
bus: ti-sysc: Fix 1-wire reset quirk
ARM: dts: r8a7779: Remove deprecated "renesas, rcar-sata" compatible value
soc: imx-scu: Align imx sc msg structs to 4
firmware: imx: Align imx_sc_msg_req_cpu_start to 4
firmware: imx: scu-pd: Align imx sc msg structs to 4
firmware: imx: misc: Align imx sc msg structs to 4
firmware: imx: scu: Ensure sequential TX
ARM: dts: imx7-colibri: Fix frequency for sd/mmc
...
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Merge tag 'edac_urgent-2020-03-08' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull EDAC fix from Borislav Petkov:
"Error reporting fix for synopsys_edac: do not overwrite partial
decoded error message (Sherry Sun)"
* tag 'edac_urgent-2020-03-08' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC/synopsys: Do not print an error with back-to-back snprintf() calls
Here are 4 small char/misc driver fixes for reported issues for 5.6-rc5.
These fixes are:
- binder fix for a potential use-after-free problem found (took
2 tries to get it right)
- interconnect core fix
- altera-stapl driver fix
All 4 of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc fixes from Greg KH:
"Here are four small char/misc driver fixes for reported issues for
5.6-rc5.
These fixes are:
- binder fix for a potential use-after-free problem found (took two
tries to get it right)
- interconnect core fix
- altera-stapl driver fix
All four of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
binder: prevent UAF for binderfs devices II
interconnect: Handle memory allocation errors
altera-stapl: altera_get_note: prevent write beyond end of 'key'
binder: prevent UAF for binderfs devices
Here are 4 small driver core / debugfs patches for 5.6-rc3
They are:
- debugfs api cleanup now that all callers for
debugfs_create_regset32() have been fixed up. This was
waiting until after the -rc1 merge as these fixes came in
through different trees
- driver core sync state fixes based on reports of minor issues
found in the feature
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core and debugfs fixes from Greg KH:
"Here are four small driver core / debugfs patches for 5.6-rc3:
- debugfs api cleanup now that all debugfs_create_regset32() callers
have been fixed up. This was waiting until after the -rc1 merge as
these fixes came in through different trees
- driver core sync state fixes based on reports of minor issues found
in the feature
All of these have been in linux-next with no reported issues"
* tag 'driver-core-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
driver core: Skip unnecessary work when device doesn't have sync_state()
driver core: Add dev_has_sync_state()
driver core: Call sync_state() even if supplier has no consumers
debugfs: remove return value of debugfs_create_regset32()
Here are some small tty/serial fixes for 5.6-rc5
Just some small serial driver fixes, and a vt core fixup, full details
are:
- vt fixes for issues found by syzbot
- serdev fix for Apple boxes
- fsl_lpuart serial driver fixes
- MAINTAINER update for incorrect serial files
- new device ids for 8250_exar driver
- mvebu-uart fix
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are some small tty/serial fixes for 5.6-rc5
Just some small serial driver fixes, and a vt core fixup, full details
are:
- vt fixes for issues found by syzbot
- serdev fix for Apple boxes
- fsl_lpuart serial driver fixes
- MAINTAINER update for incorrect serial files
- new device ids for 8250_exar driver
- mvebu-uart fix
All of these have been in linux-next with no reported issues"
* tag 'tty-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: serial: fsl_lpuart: free IDs allocated by IDA
Revert "tty: serial: fsl_lpuart: drop EARLYCON_DECLARE"
serdev: Fix detection of UART devices on Apple machines.
MAINTAINERS: Add missed files related to Synopsys DesignWare UART
serial: 8250_exar: add support for ACCES cards
tty:serial:mvebu-uart:fix a wrong return
vt: selection, push sel_lock up
vt: selection, push console lock down
Here are some small USB and PHY driver fixes for reported issues for
5.6-rc5.
Included in here are:
- phy driver fixes
- new USB quirks
- USB cdns3 gadget driver fixes
- USB hub core fixes
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/PHY fixes from Greg KH:
"Here are some small USB and PHY driver fixes for reported issues for
5.6-rc5.
Included in here are:
- phy driver fixes
- new USB quirks
- USB cdns3 gadget driver fixes
- USB hub core fixes
All of these have been in linux-next with no reported issues"
* tag 'usb-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: dwc3: gadget: Update chain bit correctly when using sg list
usb: core: port: do error out if usb_autopm_get_interface() fails
usb: core: hub: do error out if usb_autopm_get_interface() fails
usb: core: hub: fix unhandled return by employing a void function
usb: storage: Add quirk for Samsung Fit flash
usb: quirks: add NO_LPM quirk for Logitech Screen Share
usb: usb251xb: fix regulator probe and error handling
phy: allwinner: Fix GENMASK misuse
usb: cdns3: gadget: toggle cycle bit before reset endpoint
usb: cdns3: gadget: link trb should point to next request
phy: mapphone-mdm6600: Fix timeouts by adding wake-up handling
phy: brcm-sata: Correct MDIO operations for 40nm platforms
phy: ti: gmii-sel: do not fail in case of gmii
phy: ti: gmii-sel: fix set of copy-paste errors
phy: core: Fix phy_get() to not return error on link creation failure
phy: mapphone-mdm6600: Fix write timeouts with shorter GPIO toggle interval
- Fix busted syzkaller fix in 'get_new_pps' - this turned out to crash on
certain HW configurations
- Bug fixes for various missed things in error unwinds
- Add a missing rcu_read_lock annotation in hfi/qib
- Fix two ODP related regressions from the recent mmu notifier changes
- Several more syzkaller bugs in siw, RDMA netlink, verbs and iwcm
- Revert an old patch in CMA as it is now shown to not be allocating port
numbers properly
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
"Nothing particularly exciting, some small ODP regressions from the mmu
notifier rework, another bunch of syzkaller fixes, and a bug fix for a
botched syzkaller fix in the first rc pull request.
- Fix busted syzkaller fix in 'get_new_pps' - this turned out to
crash on certain HW configurations
- Bug fixes for various missed things in error unwinds
- Add a missing rcu_read_lock annotation in hfi/qib
- Fix two ODP related regressions from the recent mmu notifier
changes
- Several more syzkaller bugs in siw, RDMA netlink, verbs and iwcm
- Revert an old patch in CMA as it is now shown to not be allocating
port numbers properly"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/iwcm: Fix iwcm work deallocation
RDMA/siw: Fix failure handling during device creation
RDMA/nldev: Fix crash when set a QP to a new counter but QPN is missing
RDMA/odp: Ensure the mm is still alive before creating an implicit child
RDMA/core: Fix protection fault in ib_mr_pool_destroy
IB/mlx5: Fix implicit ODP race
IB/hfi1, qib: Ensure RCU is locked when accessing list
RDMA/core: Fix pkey and port assignment in get_new_pps
RMDA/cm: Fix missing ib_cm_destroy_id() in ib_cm_insert_listen()
RDMA/rw: Fix error flow during RDMA context initialization
RDMA/core: Fix use of logical OR in get_new_pps
Revert "RDMA/cma: Simplify rdma_resolve_addr() error flow"
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Merge tag 'io_uring-5.6-2020-03-07' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"Here are a few io_uring fixes that should go into this release. This
contains:
- Removal of (now) unused io_wq_flush() and associated flag (Pavel)
- Fix cancelation lockup with linked timeouts (Pavel)
- Fix for potential use-after-free when freeing percpu ref for fixed
file sets
- io-wq cancelation fixups (Pavel)"
* tag 'io_uring-5.6-2020-03-07' of git://git.kernel.dk/linux-block:
io_uring: fix lockup with timeouts
io_uring: free fixed_file_data after RCU grace period
io-wq: remove io_wq_flush and IO_WQ_WORK_INTERNAL
io-wq: fix IO_WQ_WORK_NO_CANCEL cancellation
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Merge tag 'block-5.6-2020-03-07' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Here are a few fixes that should go into this release. This contains:
- Revert of a bad bcache patch from this merge window
- Removed unused function (Daniel)
- Fixup for the blktrace fix from Jan from this release (Cengiz)
- Fix of deeper level bfqq overwrite in BFQ (Carlo)"
* tag 'block-5.6-2020-03-07' of git://git.kernel.dk/linux-block:
block, bfq: fix overwrite of bfq_group pointer in bfq_find_set_group()
blktrace: fix dereference after null check
Revert "bcache: ignore pending signals when creating gc and allocator thread"
block: Remove used kblockd_schedule_work_on()
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Merge tag 'media/v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- a fix for the media controller links in both hantro driver and in
v4l2-mem2mem core
- some fixes for the pulse8-cec driver
- vicodec: handle alpha channel for RGB32 formats, as it may be used
- mc-entity.c: fix handling of pad flags
* tag 'media/v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
media: hantro: Fix broken media controller links
media: mc-entity.c: use & to check pad flags, not ==
media: v4l2-mem2mem.c: fix broken links
media: vicodec: process all 4 components for RGB32 formats
media: pulse8-cec: close serio in disconnect, not adap_free
media: pulse8-cec: INIT_DELAYED_WORK was called too late
There is a recipe to deadlock the kernel: submit a timeout sqe with a
linked_timeout (e.g. test_single_link_timeout_ception() from liburing),
and SIGKILL the process.
Then, io_kill_timeouts() takes @ctx->completion_lock, but the timeout
isn't flagged with REQ_F_COMP_LOCKED, and will try to double grab it
during io_put_free() to cancel the linked timeout. Probably, the same
can happen with another io_kill_timeout() call site, that is
io_commit_cqring().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
- Fix panic in gup_fast on large pud by providing an implementation of
pud_write. This has been overlooked during migration to common gup code.
- Fix unexpected write combining on PCI stores.
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Merge tag 's390-5.6-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- Fix panic in gup_fast on large pud by providing an implementation of
pud_write. This has been overlooked during migration to common gup
code.
- Fix unexpected write combining on PCI stores.
* tag 's390-5.6-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/pci: Fix unexpected write combine on resource
s390/mm: fix panic in gup_fast on large pud
One fix for a recent regression to our breakpoint/watchpoint code.
Another fix for our KUAP support, this time a missing annotation in a rarely
used path in signal handling.
A fix for our handling of a CPU feature that effects the PMU, when booting
guests in some configurations.
A minor fix to our linker script to explicitly include the .BTF section.
Thanks to:
Christophe Leroy, Desnes A. Nunes do Rosario, Leonardo Bras, Naveen N. Rao,
Ravi Bangoria, Stefan Berger.
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Merge tag 'powerpc-5.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Some more powerpc fixes for 5.6:
- One fix for a recent regression to our breakpoint/watchpoint code.
- Another fix for our KUAP support, this time a missing annotation in
a rarely used path in signal handling.
- A fix for our handling of a CPU feature that effects the PMU, when
booting guests in some configurations.
- A minor fix to our linker script to explicitly include the .BTF
section.
Thanks to: Christophe Leroy, Desnes A. Nunes do Rosario, Leonardo
Bras, Naveen N. Rao, Ravi Bangoria, Stefan Berger"
* tag 'powerpc-5.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mm: Fix missing KUAP disable in flush_coherent_icache()
powerpc: fix hardware PMU exception bug on PowerVM compatibility mode systems
powerpc: Include .BTF section
powerpc/watchpoint: Don't call dar_within_range() for Book3S
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Merge tag 'for-linus-5.6b-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"Four fixes and a small cleanup patch:
- two fixes by Dongli Zhang fixing races in the xenbus driver
- two fixes by me fixing issues introduced in 5.6
- a small cleanup by Gustavo Silva replacing a zero-length array with
a flexible-array"
* tag 'for-linus-5.6b-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/blkfront: fix ring info addressing
xen/xenbus: fix locking
xenbus: req->err should be updated before req->state
xenbus: req->body should be updated before req->state
xen: Replace zero-length array with flexible-array member
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Merge tag 'for-linus-2020-03-07' of gitolite.kernel.org:pub/scm/linux/kernel/git/brauner/linux
Pull thread fixes from Christian Brauner:
"Here are a few hopefully uncontroversial fixes:
- Use RCU_INIT_POINTER() when initializing rcu protected members in
task_struct to fix sparse warnings.
- Add pidfd_fdinfo_test binary to .gitignore file"
* tag 'for-linus-2020-03-07' of gitolite.kernel.org:pub/scm/linux/kernel/git/brauner/linux:
selftests: pidfd: Add pidfd_fdinfo_test in .gitignore
exit: Fix Sparse errors and warnings
fork: Use RCU_INIT_POINTER() instead of rcu_access_pointer()
The regular "bump-in-the-middle" updates, containing mostly ASoC-
related fixes at this time. All changes are reasonably small.
A few entries are for ASoC and ALSA core parts (DAPM, PCM, topology)
for followups of the recent changes and potential buffer overflow by
snprintf(), while the rest are (both new and old) device-specific
fixes for Intel, meson, tas2562, rt1015, as well as the usual
HD-audio quirks.
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Merge tag 'sound-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"The regular "bump-in-the-middle" updates, containing mostly ASoC-
related fixes at this time. All changes are reasonably small.
A few entries are for ASoC and ALSA core parts (DAPM, PCM, topology)
for followups of the recent changes and potential buffer overflow by
snprintf(), while the rest are (both new and old) device-specific
fixes for Intel, meson, tas2562, rt1015, as well as the usual HD-audio
quirks"
* tag 'sound-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (25 commits)
ALSA: sgio2audio: Remove usage of dropped hw_params/hw_free functions
ALSA: hda/realtek - Enable the headset of ASUS B9450FA with ALC294
ALSA: hda/realtek - Fix silent output on Gigabyte X570 Aorus Master
ALSA: hda/realtek - Add Headset Button supported for ThinkPad X1
ALSA: hda/realtek - Add Headset Mic supported
ASoC: wm8741: Fix typo in Kconfig prompt
ASoC: stm32: sai: manage rebind issue
ASoC: SOF: Fix snd_sof_ipc_stream_posn()
ASoC: rt1015: modify pre-divider for sysclk
ASoC: rt1015: add operation callback function for rt1015_dai[]
ASoC: soc-component: tidyup snd_soc_pcm_component_sync_stop()
ASoC: dapm: Correct DAPM handling of active widgets during shutdown
ASoC: tas2562: Fix sample rate error message
ASoC: Intel: Skylake: Fix available clock counter incrementation
ASoC: soc-pcm/soc-compress: don't use snd_soc_dapm_stream_stop()
ASoC: meson: g12a: add tohdmitx reset
ASoC: pcm512x: Fix unbalanced regulator enable call in probe error path
ASoC: soc-core: fix for_rtd_codec_dai_rollback() macro
ASoC: topology: Fix memleak in soc_tplg_manifest_load()
ASoC: topology: Fix memleak in soc_tplg_link_elems_load()
...
More fixes that have arrived since the merge window, spread out all
over. There's a few things like the operation callback addition for
rt1015 and the meson reset addition which add small new bits of
functionality to fix non-working systems, they're all very small and for
parts of newly added functionality.
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Merge tag 'asoc-fix-v5.6-rc4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v5.6
More fixes that have arrived since the merge window, spread out all
over. There's a few things like the operation callback addition for
rt1015 and the meson reset addition which add small new bits of
functionality to fix non-working systems, they're all very small and for
parts of newly added functionality.
This Kselftest update for Linux 5.6-rc5 consists of a cleanup patch
to undo changes to global .gitignore that added selftests/lkdtm
objects and add them to a local selftests/lkdtm/.gitignore.
Summary of Linus's comments on local vs. global gitignore scope:
- Keep local gitignore patterns in local files.
- Put only global gitignore patterns in the top-level gitignore file.
Local scope keeps things much better separated. It also incidentally
means that if a directory gets renamed, the gitignore file continues
to work unless in the case of renaming the actual files themselves that
are named in the gitignore.
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Merge tag 'linux-kselftest-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest update from Shuah Khan:
"This consists of a cleanup patch to undo changes to global .gitignore
that added selftests/lkdtm objects and add them to a local
selftests/lkdtm/.gitignore.
Summary of Linus's comments on local vs. global gitignore scope:
- Keep local gitignore patterns in local files.
- Put only global gitignore patterns in the top-level gitignore file.
Local scope keeps things much better separated. It also incidentally
means that if a directory gets renamed, the gitignore file continues
to work unless in the case of renaming the actual files themselves
that are named in the gitignore"
* tag 'linux-kselftest-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftest/lkdtm: Use local .gitignore
This tag contains a handful of fixes that I would like to target for 5.6:
* A pair of fixes to module loading, which we hope solve the last of the issues
with module text being loaded too sparsely for our call relocations.
* A Kconfig fix that disallows selecting memory models not supported by NOMMU.
* A series of Kconfig updates to ease selecting the drivers necessary to run on
QEMU's virt platform.
* DTS updates for SiFive's HiFive Unleashed.
* A fix to our seccomp support that avoids mangling restartable syscalls.
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Merge tag 'riscv-for-linus-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
"This contains a handful of fixes that I would like to target for 5.6:
- A pair of fixes to module loading, which we hope solve the last of
the issues with module text being loaded too sparsely for our call
relocations.
- A Kconfig fix that disallows selecting memory models not supported
by NOMMU.
- A series of Kconfig updates to ease selecting the drivers necessary
to run on QEMU's virt platform.
- DTS updates for SiFive's HiFive Unleashed.
- A fix to our seccomp support that avoids mangling restartable
syscalls"
* tag 'riscv-for-linus-5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: fix seccomp reject syscall code path
riscv: dts: Add GPIO reboot method to HiFive Unleashed DTS file
RISC-V: Select Goldfish RTC driver for QEMU virt machine
RISC-V: Select SYSCON Reboot and Poweroff for QEMU virt machine
RISC-V: Enable QEMU virt machine support in defconfigs
RISC-V: Add kconfig option for QEMU virt machine
riscv: Fix range looking for kernel image memblock
riscv: Force flat memory model with no-mmu
riscv: Change code model of module to medany to improve data accessing
riscv: avoid the PIC offset of static percpu data in module beyond 2G limits
This makes the script more convenient to run.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Fixes for warnings introduced by hierarchical PSCI binding changes
- Fixes for broken doc references due to DT schema conversions
- Several grammar and typo fixes
- Fix a bunch of dtc warnings in examples
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Merge tag 'devicetree-fixes-for-5.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:
"Another batch of DT fixes. I think this should be the last of it, but
sending pull requests seems to cause people to send more fixes.
Summary:
- Fixes for warnings introduced by hierarchical PSCI binding changes
- Fixes for broken doc references due to DT schema conversions
- Several grammar and typo fixes
- Fix a bunch of dtc warnings in examples"
* tag 'devicetree-fixes-for-5.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dt-bindings: arm: Fixup the DT bindings for hierarchical PSCI states
dt-bindings: power: Extend nodename pattern for power-domain providers
MAINTAINERS: update ALLWINNER CPUFREQ DRIVER entry
dt-bindings: bus: Drop empty compatible string in example
dt-bindings: power: Convert domain-idle-states bindings to json-schema
dt-bindings: arm: Fix cpu compatibles in the hierarchical example for PSCI
dt-bindings: arm: Correct links to idle states definitions
dt-bindings: mfd: Fix typo in file name of twl-familly.txt
dt-bindings: mfd: tps65910: Improve grammar
dt-bindings: mfd: zii,rave-sp: Fix a typo ("onborad")
dt-bindings: arm: fsl: fix APF6Dev compatible
dt-bindings: Fix dtc warnings in examples
docs: dt: fix several broken doc references
docs: dt: fix several broken references due to renames
MAINTAINERS: clean up PCIE DRIVER FOR CAVIUM THUNDERX
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Merge tag 'for-5.6-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fix from David Sterba:
"One fixup for DIO when in use with the new checksums, a missed case
where the checksum size was still assuming u32"
* tag 'for-5.6-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix RAID direct I/O reads with alternate csums
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Merge tag 'filelock-v5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux
Pull file locking fixes from Jeff Layton:
"Just a couple of late-breaking patches for the file locking code. The
second patch (from yangerkun) fixes a rather nasty looking potential
use-after-free that should go to stable.
The other patch could technically wait for 5.7, but it's fairly
innocuous so I figured we might as well take it"
* tag 'filelock-v5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
locks: fix a potential use-after-free problem when wakeup a waiter
fcntl: Distribute switch variables for initialization
A selection of small fixes, mostly for drivers, that have arrived since
the merge window. None of them are earth shattering in themselves but
all useful for affected systems.
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Merge tag 'spi-fix-v5.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A selection of small fixes, mostly for drivers, that have arrived
since the merge window. None of them are earth shattering in
themselves but all useful for affected systems"
* tag 'spi-fix-v5.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: spi_register_controller(): free bus id on error paths
spi: bcm63xx-hsspi: Really keep pll clk enabled
spi: atmel-quadspi: fix possible MMIO window size overrun
spi/zynqmp: remove entry that causes a cs glitch
spi: pxa2xx: Add CS control clock quirk
spi: spidev: Fix CS polarity if GPIO descriptors are used
spi: qup: call spi_qup_pm_resume_runtime before suspending
spi: spi-omap2-mcspi: Support probe deferral for DMA channels
spi: spi-omap2-mcspi: Handle DMA size restriction on AM65x
A couple of small fixes, one for a minor issue in the stm32-vrefbuf
driver and a documentation fix in the Qualcomm code.
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Merge tag 'regulator-fix-v5.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"A couple of small fixes, one for a minor issue in the stm32-vrefbuf
driver and a documentation fix in the Qualcomm code"
* tag 'regulator-fix-v5.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: stm32-vrefbuf: fix a possible overshoot when re-enabling
regulator: qcom_spmi: Fix docs for PM8004
Fix an error return in the adt7462 driver, bad voltage limits
reported by the xdpe12284 driver, and a broken documentation
reference in the adm1177 driver documentation.
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Merge tag 'hwmon-for-v5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Fix an error return in the adt7462 driver, bad voltage limits reported
by the xdpe12284 driver, and a broken documentation reference in the
adm1177 driver documentation"
* tag 'hwmon-for-v5.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (adt7462) Fix an error return in ADT7462_REG_VOLT()
hwmon: (pmbus/xdpe12284) Add callback for vout limits conversion
docs: adm1177: fix a broken reference
- Fix misreporting of ASID limit when KPTI is enabled
- Fix busted NULL pointer checks for GICC structure in ACPI PMU code
- Avoid nobbling the "fsl_imx8_ddr" PMU counters when disabling them
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Here are another three arm64 fixes for 5.6, all pretty minor. Main
thing is fixing a silly bug in the fsl_imx8_ddr PMU driver where we
would zero the counters when disabling them.
- Fix misreporting of ASID limit when KPTI is enabled
- Fix busted NULL pointer checks for GICC structure in ACPI PMU code
- Avoid nobbling the "fsl_imx8_ddr" PMU counters when disabling them"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: context: Fix ASID limit in boot messages
drivers/perf: arm_pmu_acpi: Fix incorrect checking of gicc pointer
drivers/perf: fsl_imx8_ddr: Correct the CLEAR bit definition
When syzkaller tests, there is a UAF:
BUG: KASan: use after free in vgacon_invert_region+0x9d/0x110 at addr
ffff880000100000
Read of size 2 by task syz-executor.1/16489
page:ffffea0000004000 count:0 mapcount:-127 mapping: (null)
index:0x0
page flags: 0xfffff00000000()
page dumped because: kasan: bad access detected
CPU: 1 PID: 16489 Comm: syz-executor.1 Not tainted
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org 04/01/2014
Call Trace:
[<ffffffffb119f309>] dump_stack+0x1e/0x20
[<ffffffffb04af957>] kasan_report+0x577/0x950
[<ffffffffb04ae652>] __asan_load2+0x62/0x80
[<ffffffffb090f26d>] vgacon_invert_region+0x9d/0x110
[<ffffffffb0a39d95>] invert_screen+0xe5/0x470
[<ffffffffb0a21dcb>] set_selection+0x44b/0x12f0
[<ffffffffb0a3bfae>] tioclinux+0xee/0x490
[<ffffffffb0a1d114>] vt_ioctl+0xff4/0x2670
[<ffffffffb0a0089a>] tty_ioctl+0x46a/0x1a10
[<ffffffffb052db3d>] do_vfs_ioctl+0x5bd/0xc40
[<ffffffffb052e2f2>] SyS_ioctl+0x132/0x170
[<ffffffffb11c9b1b>] system_call_fastpath+0x22/0x27
Memory state around the buggy address:
ffff8800000fff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00
ffff8800000fff80: 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00
>ffff880000100000: ff ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff
It can be reproduce in the linux mainline by the program:
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <linux/vt.h>
struct tiocl_selection {
unsigned short xs; /* X start */
unsigned short ys; /* Y start */
unsigned short xe; /* X end */
unsigned short ye; /* Y end */
unsigned short sel_mode; /* selection mode */
};
#define TIOCL_SETSEL 2
struct tiocl {
unsigned char type;
unsigned char pad;
struct tiocl_selection sel;
};
int main()
{
int fd = 0;
const char *dev = "/dev/char/4:1";
struct vt_consize v = {0};
struct tiocl tioc = {0};
fd = open(dev, O_RDWR, 0);
v.v_rows = 3346;
ioctl(fd, VT_RESIZEX, &v);
tioc.type = TIOCL_SETSEL;
ioctl(fd, TIOCLINUX, &tioc);
return 0;
}
When resize the screen, update the 'vc->vc_size_row' to the new_row_size,
but when 'set_origin' in 'vgacon_set_origin', vgacon use 'vga_vram_base'
for 'vc_origin' and 'vc_visible_origin', not 'vc_screenbuf'. It maybe
smaller than 'vc_screenbuf'. When TIOCLINUX, use the new_row_size to calc
the offset, it maybe larger than the vga_vram_size in vgacon driver, then
bad access.
Also, if set an larger screenbuf firstly, then set an more larger
screenbuf, when copy old_origin to new_origin, a bad access may happen.
So, If the screen size larger than vga_vram, resize screen should be
failed. This alse fix CVE-2020-8649 and CVE-2020-8647.
Linus pointed out that overflow checking seems absent. We're saved by
the existing bounds checks in vc_do_resize() with rather strict
limits:
if (cols > VC_RESIZE_MAXCOL || lines > VC_RESIZE_MAXROW)
return -EINVAL;
Fixes: 0aec4867dc ("[PATCH] SVGATextMode fix")
Reference: CVE-2020-8647 and CVE-2020-8649
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
[danvet: augment commit message to point out overflow safety]
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200304022429.37738-1-zhangxiaoxu5@huawei.com
The hierarchical topology with power-domain should be described through
child nodes, rather than as currently described in the PSCI root node. Fix
this by adding a patternProperties with a corresponding reference to the
power-domain DT binding.
Additionally, update the example to conform to the new pattern, but also to
the adjusted domain-idle-state DT binding.
Fixes: a3f048b542 ("dt: psci: Update DT bindings to support hierarchical PSCI states")
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
[robh: Add missing allOf, tweak power-domain node name]
Signed-off-by: Rob Herring <robh@kernel.org>
The existing binding requires the nodename to have a '@', which is a bit
limiting for the wider use case. Therefore, let's extend the pattern to
allow either '@' or '-'.
Fixes: a3f048b542 ("dt: psci: Update DT bindings to support hierarchical PSCI states")
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
[robh: drop example change]
Signed-off-by: Rob Herring <robh@kernel.org>
