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commit 26d7fb4fd4ca1180e2fa96587dea544563b4962a upstream.
Commit 62baf70c3274 caused the ANA log page to be re-read, even on
controllers that do not support ANA. While this should generally
harmless, some controllers hang on the unsupported log page and
never finish probing.
Fixes: 62baf70c3274 ("nvme: re-read ANA log page after ns scan completes")
Signed-off-by: Hannes Reinecke <hare@kernel.org>
Tested-by: Srikanth Aithal <sraithal@amd.com>
[hch: more detailed commit message]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 1428a6109b20e356188c3fb027bdb7998cc2fb98 upstream.
Commit c050f5e91b47 ("net: dsa: mv88e6xxx: Fill in STU support for all
supported chips") introduced STU methods, but did not add them to the
6320 family. Fix it.
Fixes: c050f5e91b47 ("net: dsa: mv88e6xxx: Fill in STU support for all supported chips")
Signed-off-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250317173250.28780-6-kabel@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit a2ef58e2c4aea4de166fc9832eb2b621e88c98d5 upstream.
Commit f3a2cd326e44 ("net: dsa: mv88e6xxx: introduce .port_set_policy")
did not add the .port_set_policy() method for the 6320 family. Fix it.
Fixes: f3a2cd326e44 ("net: dsa: mv88e6xxx: introduce .port_set_policy")
Signed-off-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250317173250.28780-5-kabel@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit f85c69369854a43af2c5d3b3896da0908d713133 upstream.
Commit f36456522168 ("net: dsa: mv88e6xxx: move PVT description in
info") did not enable PVT for 6321 switch. Fix it.
Fixes: f36456522168 ("net: dsa: mv88e6xxx: move PVT description in info")
Signed-off-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250317173250.28780-4-kabel@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 4ae01ec007716986e1a20f1285eb013cbf188830 upstream.
The atu_move_port_mask for 6341 family (Topaz) is 0xf, not 0x1f. The
PortVec field is 8 bits wide, not 11 as in 6390 family. Fix this.
Fixes: e606ca36bbf2 ("net: dsa: mv88e6xxx: rework ATU Remove")
Signed-off-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250317173250.28780-3-kabel@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 44d9b3f584c59a606b521e7274e658d5b866c699 upstream.
When `jr3_pci_detach()` is called during device removal, it calls
`timer_delete_sync()` to stop the timer, but the timer expiry function
always reschedules the timer, so the synchronization is ineffective.
Call `timer_shutdown_sync()` instead. It does not matter that the timer
expiry function pointer is cleared, because the device is being removed.
Fixes: 07b509e6584a5 ("Staging: comedi: add jr3_pci driver")
Cc: stable <stable@kernel.org>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20250415123901.13483-1-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 4c2227656d9003f4d77afc76f34dd81b95e4c2c4 upstream.
vmxnet3 driver's XDP handling is buggy for packet sizes using ring0 (that
is, packet sizes between 128 - 3k bytes).
We noticed MTU-related connectivity issues with Cilium's service load-
balancing in case of vmxnet3 as NIC underneath. A simple curl to a HTTP
backend service where the XDP LB was doing IPIP encap led to overly large
packet sizes but only for *some* of the packets (e.g. HTTP GET request)
while others (e.g. the prior TCP 3WHS) looked completely fine on the wire.
In fact, the pcap recording on the backend node actually revealed that the
node with the XDP LB was leaking uninitialized kernel data onto the wire
for the affected packets, for example, while the packets should have been
152 bytes their actual size was 1482 bytes, so the remainder after 152 bytes
was padded with whatever other data was in that page at the time (e.g. we
saw user/payload data from prior processed packets).
We only noticed this through an MTU issue, e.g. when the XDP LB node and
the backend node both had the same MTU (e.g. 1500) then the curl request
got dropped on the backend node's NIC given the packet was too large even
though the IPIP-encapped packet normally would never even come close to
the MTU limit. Lowering the MTU on the XDP LB (e.g. 1480) allowed to let
the curl request succeed (which also indicates that the kernel ignored the
padding, and thus the issue wasn't very user-visible).
Commit e127ce7699c1 ("vmxnet3: Fix missing reserved tailroom") was too eager
to also switch xdp_prepare_buff() from rcd->len to rbi->len. It really needs
to stick to rcd->len which is the actual packet length from the descriptor.
The latter we also feed into vmxnet3_process_xdp_small(), by the way, and
it indicates the correct length needed to initialize the xdp->{data,data_end}
parts. For e127ce7699c1 ("vmxnet3: Fix missing reserved tailroom") the
relevant part was adapting xdp_init_buff() to address the warning given the
xdp_data_hard_end() depends on xdp->frame_sz. With that fixed, traffic on
the wire looks good again.
Fixes: e127ce7699c1 ("vmxnet3: Fix missing reserved tailroom")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Andrew Sauber <andrew.sauber@isovalent.com>
Cc: Anton Protopopov <aspsk@isovalent.com>
Cc: William Tu <witu@nvidia.com>
Cc: Martin Zaharinov <micron10@gmail.com>
Cc: Ronak Doshi <ronak.doshi@broadcom.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250423133600.176689-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 18daa52418e7e4629ed1703b64777294209d2622 upstream.
If userspace reads "uevent" device attribute at the same time as another
threads unbinds the device from its driver, change to dev->driver from a
valid pointer to NULL may result in crash. Fix this by using READ_ONCE()
when fetching the pointer, and take bus' drivers klist lock to make sure
driver instance will not disappear while we access it.
Use WRITE_ONCE() when setting the driver pointer to ensure there is no
tearing.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Link: https://lore.kernel.org/r/20250311052417.1846985-3-dmitry.torokhov@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 04d3e5461c1f5cf8eec964ab64948ebed826e95e upstream.
In preparation to closing a race when reading driver pointer in
dev_uevent() code, instead of setting device->driver pointer directly
introduce device_set_driver() helper.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Link: https://lore.kernel.org/r/20250311052417.1846985-2-dmitry.torokhov@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit dc1771f718548f7d4b93991b174c6e7b5e1ba410 upstream.
This reverts commit c0a40097f0bc81deafc15f9195d1fb54595cd6d0.
Probing a device can take arbitrary long time. In the field we observed
that, for example, probing a bad micro-SD cards in an external USB card
reader (or maybe cards were good but cables were flaky) sometimes takes
longer than 2 minutes due to multiple retries at various levels of the
stack. We can not block uevent_show() method for that long because udev
is reading that attribute very often and that blocks udev and interferes
with booting of the system.
The change that introduced locking was concerned with dev_uevent()
racing with unbinding the driver. However we can handle it without
locking (which will be done in subsequent patch).
There was also claim that synchronization with probe() is needed to
properly load USB drivers, however this is a red herring: the change
adding the lock was introduced in May of last year and USB loading and
probing worked properly for many years before that.
Revert the harmful locking.
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Link: https://lore.kernel.org/r/20250311052417.1846985-1-dmitry.torokhov@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 951a04ab3a2db4029debfa48d380ef834b93207e ]
Add check for the return value of spi_imx_setupxfer().
spi_imx->rx and spi_imx->tx function pointer can be NULL when
spi_imx_setupxfer() return error, and make NULL pointer dereference.
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
Call trace:
0x0
spi_imx_pio_transfer+0x50/0xd8
spi_imx_transfer_one+0x18c/0x858
spi_transfer_one_message+0x43c/0x790
__spi_pump_transfer_message+0x238/0x5d4
__spi_sync+0x2b0/0x454
spi_write_then_read+0x11c/0x200
Signed-off-by: Tamura Dai <kirinode0@gmail.com>
Reviewed-by: Carlos Song <carlos.song@nxp.com>
Link: https://patch.msgid.link/20250417011700.14436-1-kirinode0@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit b7c178d9e57c8fd4238ff77263b877f6f16182ba ]
During recovery/check operations, the process_checks function loops
through available disks to find a 'primary' source with successfully
read data.
If no suitable source disk is found after checking all possibilities,
the 'primary' index will reach conf->raid_disks * 2. Add an explicit
check for this condition after the loop. If no source disk was found,
print an error message and return early to prevent further processing
without a valid primary source.
Link: https://lore.kernel.org/linux-raid/20250408143808.1026534-1-meir.elisha@volumez.com
Signed-off-by: Meir Elisha <meir.elisha@volumez.com>
Suggested-and-reviewed-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 21f4314e66ed8d40b2ee24185d1a06a07a512eb1 ]
On malfunctioning hardware, timeout error messages can appear thousands
of times, creating unnecessary system pressure and log bloat. This patch
makes two improvements:
1. Replace dev_err() with dev_err_ratelimited() to prevent log flooding
when hardware errors persist
2. Remove the redundant timeout value parameter from the error message,
as 'ret' is always zero in this error path
These changes reduce logging overhead while maintaining necessary error
reporting for debugging purposes.
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20250401-tegra-v2-2-126c293ec047@debian.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 41c721fc093938745d116c3a21326a0ee03bb491 ]
Some machines with tegra_qspi_combined_seq_xfer hardware issues generate
excessive kernel warnings, severely polluting the logs:
dmesg | grep -i "WARNING:.*tegra_qspi_transfer_one_message" | wc -l
94451
This patch replaces WARN_ON with WARN_ON_ONCE for timeout conditions to
reduce log spam. The subsequent error message still prints on each
occurrence, providing sufficient information about the failure, while
the stack trace is only needed once for debugging purposes.
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20250401-tegra-v2-1-126c293ec047@debian.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 1fdb8188c3d505452b40cdb365b1bb32be533a8e ]
Set cmd->iocb.ki_ioprio to the ioprio of loop device's request.
The purpose is to inherit the original request ioprio in the aio
flow.
Signed-off-by: Yunlong Xing <yunlong.xing@unisoc.com>
Signed-off-by: Zhiguo Niu <zhiguo.niu@unisoc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20250414030159.501180-1-yunlong.xing@unisoc.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit f7b705c238d1483f0a766e2b20010f176e5c0fb7 ]
When a fatal error occurs, a phy down event may not be received to set
phy->phy_attached to zero.
Signed-off-by: Igor Pylypiv <ipylypiv@google.com>
Signed-off-by: Salomon Dushimirimana <salomondush@google.com>
Link: https://lore.kernel.org/r/20250319230305.3172920-1-salomondush@google.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 3d101165e72316775947d71321d97194f03dfef3 ]
Ensure clocks are enabled before configuring unipro. Additionally move
the pre_link() hook before the exynos_ufs_phy_init() calls. This means
the register write sequence more closely resembles the ordering of the
downstream driver.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://lore.kernel.org/r/20250319-exynos-ufs-stability-fixes-v2-1-96722cc2ba1b@linaro.org
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit daff37f00c7506ca322ccfce95d342022f06ec58 ]
The hw port ID of phy may change when inserting disks in batches, causing
the port ID in hisi_sas_port and itct to be inconsistent with the hardware,
resulting in I/O errors. The solution is to set the device state to gone to
intercept I/O sent to the device, and then execute linkreset to discard and
find the disk to re-update its information.
Signed-off-by: Xingui Yang <yangxingui@huawei.com>
Link: https://lore.kernel.org/r/20250312095135.3048379-3-yangxingui@huawei.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 70289ae5cac4d3a39575405aaf63330486cea030 ]
Do not leak the tgtport reference when the work is already scheduled.
Signed-off-by: Daniel Wagner <wagi@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit b0b26ad0e1943de25ce82a7e5af3574f31b1cf99 ]
The reference counting code can be simplified. Instead taking a tgtport
refrerence at the beginning of nvmet_fc_alloc_hostport and put it back
if not a new hostport object is allocated, only take it when a new
hostport object is allocated.
Signed-off-by: Daniel Wagner <wagi@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit b8c7a1ac884cc267d1031f8de07f1a689a69fbab ]
The regulator comment in of_gpio_set_polarity_by_property()
made on top of a couple of the cases, while Atmel HSMCI quirk
is not related to that. Make it clear by moving Atmel HSMCI
quirk up out of the scope of the regulator comment.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20250402122058.1517393-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit e3105f54a51554fb1bbf19dcaf93c4411d2d6c8a ]
The function returns bool so we should return false, not NULL. No
functional changes are expected.
Signed-off-by: Uday Shankar <ushankar@purestorage.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 62baf70c327444338c34703c71aa8cc8e4189bd6 ]
When scanning for new namespaces we might have missed an ANA AEN.
The NVMe base spec (NVMe Base Specification v2.1, Figure 151 'Asynchonous
Event Information - Notice': Asymmetric Namespace Access Change) states:
A controller shall not send this even if an Attached Namespace
Attribute Changed asynchronous event [...] is sent for the same event.
so we need to re-read the ANA log page after we rescanned the namespace
list to update the ANA states of the new namespaces.
Signed-off-by: Hannes Reinecke <hare@kernel.org>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 7ab4f0e37a0f4207e742a8de69be03984db6ebf0 ]
The end of table checks should be done with the structure size,
but 2 of the 3 similar calls use the pointer size.
Signed-off-by: Jean-Marc Eurin <jmeurin@google.com>
Link: https://patch.msgid.link/20250402001542.2600671-1-jmeurin@google.com
[ rjw: Subject edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit b988685388effd648150aab272533f833a2a70f0 ]
When AC adapter is unplugged or plugged in EC wakes from HW sleep but
APU doesn't enter back into HW sleep.
The reason this happens is that, when the APU exits HW sleep, the power
rails controlled by the EC will power up the TCON. The TCON has a GPIO
that will be toggled at this time. The GPIO is not marked as a wakeup
source, but the GPIO controller still has an unserviced interrupt.
Unserviced interrupts will block entering HW sleep again. Clearing the
GPIO doesn't help as the TCON continues to assert it until it's been
initialized by i2c-hid.
Fixing this would require TCON F/W changes and it's already broken in
the wild on production hardware.
To avoid triggering this issue add a quirk to avoid letting EC wake
up system at all. The power button still works properly on this system.
Reported-by: Antheas Kapenekakis <lkml@antheas.dev>
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3929
Link: https://github.com/bazzite-org/patchwork/commit/95b93b2852718ee1e808c72e6b1836da4a95fc63
Co-developed-by: Antheas Kapenekakis <lkml@antheas.dev>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patch.msgid.link/20250401133858.1892077-1-superm1@kernel.org
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 9546ad1a9bda7362492114f5866b95b0ac4a100e ]
Scanning for namespaces can take some time, so if the target is
reconfigured while the scan is running we may miss a Attached Namespace
Attribute Changed AEN.
Check if the NVME_AER_NOTICE_NS_CHANGED bit is set once the scan has
finished, and requeue scanning to pick up any missed change.
Signed-off-by: Hannes Reinecke <hare@kernel.org>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 0f2946bb172632e122d4033e0b03f85230a29510 ]
xen-acpi-processor functions under a PVH dom0 with only a
xen_initial_domain() runtime check. Change the Kconfig dependency from
PV dom0 to generic dom0 to reflect that.
Suggested-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Jason Andryuk <jason.andryuk@amd.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Tested-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Message-ID: <20250331172913.51240-1-jason.andryuk@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 021ba7f1babd029e714d13a6bf2571b08af96d0f ]
by casting size_limit_mb to u64 when calculate pglimit.
Signed-off-by: Xiaogang Chen<Xiaogang.Chen@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250321164126.329638-1-xiaogang.chen@amd.com
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 2b7cbd98495f6ee4cd6422fe77828a19e9edf87f ]
Power-on Reset has a documented issue in PCF85063, refer to its datasheet,
section "Software reset":
"There is a low probability that some devices will have corruption of the
registers after the automatic power-on reset if the device is powered up
with a residual VDD level. It is required that the VDD starts at zero volts
at power up or upon power cycling to ensure that there is no corruption of
the registers. If this is not possible, a reset must be initiated after
power-up (i.e. when power is stable) with the software reset command"
Trigger SW reset if there is an indication that POR has failed.
Link: https://www.nxp.com/docs/en/data-sheet/PCF85063A.pdf
Signed-off-by: Lukas Stockmann <lukas.stockmann@siemens.com>
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Link: https://lore.kernel.org/r/20250120093451.30778-1-alexander.sverdlin@siemens.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit bf8a7ce7e4c7267a6f5f2b2023cfc459b330b25e ]
Add NTB support for new generation of processor.
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit aff12700b8dd7422bfe2277696e192af4df9de8f ]
idt_scan_mws() puts a large fixed-size array on the stack and copies
it into a smaller dynamically allocated array at the end. On 32-bit
targets, the fixed size can easily exceed the warning limit for
possible stack overflow:
drivers/ntb/hw/idt/ntb_hw_idt.c:1041:27: error: stack frame size (1032) exceeds limit (1024) in 'idt_scan_mws' [-Werror,-Wframe-larger-than]
Change it to instead just always use dynamic allocation for the
array from the start. It's too big for the stack, but not actually
all that much for a permanent allocation.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/all/202205111109.PiKTruEj-lkp@intel.com/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit bdb43af4fdb39f844ede401bdb1258f67a580a27 ]
failure to allocate inode => leaked dentry...
this one had been there since the initial merge; to be fair,
if we are that far OOM, the odds of failing at that particular
allocation are low...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 05026ea01e95ffdeb0e5ac8fb7fb1b551e3a8726 ]
If execute_location()'s memcpy of do_nothing() gets inlined and unrolled
by the compiler, it copies one word at a time:
mov 0x0(%rip),%rax R_X86_64_PC32 .text+0x1374
mov %rax,0x38(%rbx)
mov 0x0(%rip),%rax R_X86_64_PC32 .text+0x136c
mov %rax,0x30(%rbx)
...
Those .text references point to the middle of the function, causing
objtool to complain about their lack of ENDBR.
Prevent that by resolving the function pointer at runtime rather than
build time. This fixes the following warning:
drivers/misc/lkdtm/lkdtm.o: warning: objtool: execute_location+0x23: relocation to !ENDBR: .text+0x1378
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Kees Cook <kees@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/30b9abffbddeb43c4f6320b1270fa9b4d74c54ed.1742852847.git.jpoimboe@kernel.org
Closes: https://lore.kernel.org/oe-kbuild-all/202503191453.uFfxQy5R-lkp@intel.com/
Signed-off-by: Sasha Levin <sashal@kernel.org>
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rk806_set_mode_dcdc()
[ Upstream commit 29c578c848402a34e8c8e115bf66cb6008b77062 ]
If 'ctr_bit' is negative, the shift counts become negative, causing a
shift of bounds and undefined behavior.
Presumably that's not possible in normal operation, but the code
generation isn't optimal. And undefined behavior should be avoided
regardless.
Improve code generation and remove the undefined behavior by converting
the signed variables to unsigned.
Fixes the following warning with an UBSAN kernel:
vmlinux.o: warning: objtool: rk806_set_mode_dcdc() falls through to next function rk806_get_mode_dcdc()
vmlinux.o: warning: objtool: .text.rk806_set_mode_dcdc: unexpected end of section
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/2023abcddf3f524ba478d64339996f25dc4097d2.1742852847.git.jpoimboe@kernel.org
Closes: https://lore.kernel.org/oe-kbuild-all/202503182350.52KeHGD4-lkp@intel.com/
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 75749d2c1d8cef439f8b69fa1f4f36d0fc3193e6 ]
Thomas reported connection issues on AMD system with Pluggable UD-4VPD
dock. After some experiments it looks like the device has some sort of
internal timeout that triggers reconnect. This is completely against the
USB4 spec, as there is no requirement for the host to enumerate the
device right away or even at all.
In Linux case the delay is caused by scanning of retimers on the link so
we can work this around by doing the scanning after the device router
has been enumerated.
Reported-by: Thomas Lynema <lyz27@yahoo.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219748
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 64eb182d5f7a5ec30227bce4f6922ff663432f44 ]
Compatible "marvell,armada3700-xhci" match data uses the
struct xhci_plat_priv::init_quirk() function pointer to add
XHCI_RESET_ON_RESUME as quirk on XHCI.
Instead, use the struct xhci_plat_priv::quirks field.
Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Link: https://lore.kernel.org/r/20250205-s2r-cdns-v7-1-13658a271c3c@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 8c75f3e6a433d92084ad4e78b029ae680865420f ]
The variable d->name, returned by devm_kasprintf(), could be NULL.
A pointer check is added to prevent potential NULL pointer dereference.
This is similar to the fix in commit 3027e7b15b02
("ice: Fix some null pointer dereference issues in ice_ptp.c").
This issue is found by our static analysis tool
Signed-off-by: Chenyuan Yang <chenyuan0y@gmail.com>
Link: https://lore.kernel.org/r/20250311012705.1233829-1-chenyuan0y@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 28a76fcc4c85dd39633fb96edb643c91820133e3 ]
Nothing prevents a broken HC from claiming that an endpoint is Running
and repeatedly rejecting Stop Endpoint with Context State Error.
Avoid infinite retries and give back cancelled TDs.
No such cases known so far, but HCs have bugs.
Signed-off-by: Michal Pecio <michal.pecio@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20250311154551.4035726-4-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit e87ca16e99118ab4e130a41bdf12abbf6a87656c ]
Change the "wait for operation finish" logic to take interrupts into
account.
When using dmatest with idxd DMA engine, it's possible that during
longer tests, the interrupt notifying the finish of an operation
happens during wait_event_freezable_timeout(), which causes dmatest to
cleanup all the resources, some of which might still be in use.
This fix ensures that the wait logic correctly handles interrupts,
preventing premature cleanup of resources.
Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/oe-lkp/202502171134.8c403348-lkp@intel.com
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20250305230007.590178-1-vinicius.gomes@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 461f24bff86808ee5fbfe74751a825f8a7ab24e0 ]
Intel Merrifield SoC uses these endpoints for tracing and they cannot
be re-allocated if being used because the side band flow control signals
are hard wired to certain endpoints:
• 1 High BW Bulk IN (IN#1) (RTIT)
• 1 1KB BW Bulk IN (IN#8) + 1 1KB BW Bulk OUT (Run Control) (OUT#8)
In device mode, since RTIT (EP#1) and EXI/RunControl (EP#8) uses
External Buffer Control (EBC) mode, these endpoints are to be mapped to
EBC mode (to be done by EXI target driver). Additionally TRB for RTIT
and EXI are maintained in STM (System Trace Module) unit and the EXI
target driver will as well configure the TRB location for EP #1 IN
and EP#8 (IN and OUT). Since STM/PTI and EXI hardware blocks manage
these endpoints and interface to OTG3 controller through EBC interface,
there is no need to enable any events (such as XferComplete etc)
for these end points.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Ferry Toth <fntoth@gmail.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20250212193116.2487289-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit eafba0205426091354f050381c32ad1567c35844 ]
Prepare the gadget driver to handle the reserved endpoints that will be
not allocated at the initialisation time.
While at it, add a warning where the NULL endpoint should never happen.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Ferry Toth <fntoth@gmail.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20250212193116.2487289-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 41d5e3806cf589f658f92c75195095df0b66f66a ]
"maxim,max3421" DT compatible is missing its SPI device ID entry, not
allowing module autoloading and leading to the following message:
"SPI driver max3421-hcd has no spi_device_id for maxim,max3421"
Fix this by adding the spi_device_id table.
Signed-off-by: Alexander Stein <alexander.stein@mailbox.org>
Link: https://lore.kernel.org/r/20250128195114.56321-1-alexander.stein@mailbox.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit cf1338c0e02880cd235a4590eeb15e2039c873bc ]
The PCC mailbox interrupt handler (pcc_mbox_irq()) currently checks
for command completion flags and any error status before clearing the
interrupt.
The below sequence highlights an issue in the handling of PCC mailbox
interrupts, specifically when dealing with doorbell notifications and
acknowledgment between the OSPM and the platform where type3 and type4
channels are sharing the interrupt.
-------------------------------------------------------------------------
| T | Platform Firmware | OSPM/Linux PCC driver |
|---|---------------------------------|---------------------------------|
| 1 | | Build message in shmem |
| 2 | | Ring Type3 chan doorbell |
| 3 | Receives the doorbell interrupt | |
| 4 | Process the message from OSPM | |
| 5 | Build response for the message | |
| 6 | Ring Platform ACK interrupt on | |
| | Type3 chan to OSPM | Received the interrupt |
| 7 | Build Notification in Type4 Chan| |
| 8 | | Start processing interrupt in |
| | | pcc_mbox_irq() handler |
| 9 | | Enter PCC handler for Type4 chan|
|10 | | Check command complete cleared |
|11 | | Read the notification |
|12 | | Clear Platform ACK interrupt |
| | No effect from the previous step yet as the Platform ACK |
| | interrupt has not yet been triggered for this channel |
|13 | Ring Platform ACK interrupt on | |
| | Type4 chan to OSPM | |
|14 | | Enter PCC handler for Type3 chan|
|15 | | Command complete is set. |
|16 | | Read the response. |
|17 | | Clear Platform ACK interrupt |
|18 | | Leave PCC handler for Type3 |
|19 | | Leave pcc_mbox_irq() handler |
|20 | | Re-enter pcc_mbox_irq() handler |
|21 | | Enter PCC handler for Type4 chan|
|22 | | Leave PCC handler for Type4 chan|
|23 | | Enter PCC handler for Type3 chan|
|24 | | Leave PCC handler for Type3 chan|
|25 | | Leave pcc_mbox_irq() handler |
-------------------------------------------------------------------------
The key issue occurs when OSPM tries to acknowledge platform ack
interrupt for a notification which is ready to be read and processed
but the interrupt itself is not yet triggered by the platform.
This ineffective acknowledgment leads to an issue later in time where
the interrupt remains pending as we exit the interrupt handler without
clearing the platform ack interrupt as there is no pending response or
notification. The interrupt acknowledgment order is incorrect.
To resolve this issue, the platform acknowledgment interrupt should
always be cleared before processing the interrupt for any notifications
or response.
Reported-by: Robbie King <robbiek@xsightlabs.com>
Reviewed-by: Huisong Li <lihuisong@huawei.com>
Tested-by: Huisong Li <lihuisong@huawei.com>
Tested-by: Adam Young <admiyo@os.amperecomputing.com>
Tested-by: Robbie King <robbiek@xsightlabs.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 9779d45c749340ab461d595c1a4a664cb28f3007 ]
The function mbox_chan_received_data() calls the Rx callback of the
mailbox client driver. The callback might set chan_in_use flag from
pcc_send_data(). This flag's status determines whether the PCC channel
is in use.
However, there is a potential race condition where chan_in_use is
updated incorrectly due to concurrency between the interrupt handler
(pcc_mbox_irq()) and the command sender(pcc_send_data()).
The 'chan_in_use' flag of a channel is set to true after sending a
command. And the flag of the new command may be cleared erroneous by
the interrupt handler afer mbox_chan_received_data() returns,
As a result, the interrupt being level triggered can't be cleared in
pcc_mbox_irq() and it will be disabled after the number of handled times
exceeds the specified value. The error log is as follows:
| kunpeng_hccs HISI04B2:00: PCC command executed timeout!
| kunpeng_hccs HISI04B2:00: get port link status info failed, ret = -110
| irq 13: nobody cared (try booting with the "irqpoll" option)
| Call trace:
| dump_backtrace+0x0/0x210
| show_stack+0x1c/0x2c
| dump_stack+0xec/0x130
| __report_bad_irq+0x50/0x190
| note_interrupt+0x1e4/0x260
| handle_irq_event+0x144/0x17c
| handle_fasteoi_irq+0xd0/0x240
| __handle_domain_irq+0x80/0xf0
| gic_handle_irq+0x74/0x2d0
| el1_irq+0xbc/0x140
| mnt_clone_write+0x0/0x70
| file_update_time+0xcc/0x160
| fault_dirty_shared_page+0xe8/0x150
| do_shared_fault+0x80/0x1d0
| do_fault+0x118/0x1a4
| handle_pte_fault+0x154/0x230
| __handle_mm_fault+0x1ac/0x390
| handle_mm_fault+0xf0/0x250
| do_page_fault+0x184/0x454
| do_translation_fault+0xac/0xd4
| do_mem_abort+0x44/0xb4
| el0_da+0x40/0x74
| el0_sync_handler+0x60/0xb4
| el0_sync+0x168/0x180
| handlers:
| pcc_mbox_irq
| Disabling IRQ #13
To solve this issue, pcc_mbox_irq() must clear 'chan_in_use' flag before
the call to mbox_chan_received_data().
Tested-by: Adam Young <admiyo@os.amperecomputing.com>
Tested-by: Robbie King <robbiek@xsightlabs.com>
Signed-off-by: Huisong Li <lihuisong@huawei.com>
(sudeep.holla: Minor updates to the subject, commit message and comment)
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit ad9bb8f049717d64c5e62b2a44954be9f681c65b ]
The check for get_zeroed_page() leads to a direct return
and overlooked the memory leak caused by loop allocation.
Add a free helper to free spaces allocated by get_zeroed_page().
Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Link: https://lore.kernel.org/r/20250218034104.2436469-1-haoxiang_li2024@163.com
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 3db42c75a921854a99db0a2775814fef97415bac ]
Add check for the return value of get_zeroed_page() in
sclp_console_init() to prevent null pointer dereference.
Furthermore, to solve the memory leak caused by the loop
allocation, add a free helper to do the free job.
Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Link: https://lore.kernel.org/r/20250218025216.2421548-1-haoxiang_li2024@163.com
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit b20150d499b3ee5c2d632fbc5ac94f98dd33accf ]
of_clk_get_hw_from_clkspec() checks all available clock-providers by
comparing their of nodes to the one from the clkspec. If no matching
clock provider is found, the function returns -EPROBE_DEFER to cause a
re-check at a later date. If a matching clock provider is found, an
authoritative answer can be retrieved from it whether the clock exists
or not.
This does not take into account that the clock-provider may never
appear, because it's node is disabled. This can happen when a clock is
optional, provided by a separate block which never gets enabled.
One example of this happening is the rk3588's VOP, which has optional
additional display clocks coming from PLLs inside the hdmiphy blocks.
These can be used for better rates, but the system will also work
without them.
The problem around that is described in the followups to[1]. As we
already know the of node of the presumed clock provider, add a check via
of_device_is_available() whether this is a "valid" device node. This
prevents eternal defer loops.
Link: https://lore.kernel.org/dri-devel/20250215-vop2-hdmi1-disp-modes-v1-3-81962a7151d6@collabora.com/ [1]
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Tested-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20250222223733.2990179-1-heiko@sntech.de
[sboyd@kernel.org: Reword commit text a bit]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 6cb345939b8cc4be79909875276aa9dc87d16757 ]
PCI device 0x1134 shares same register features as PCI device 0x17E0.
Hence reuse same data for the new PCI device ID 0x1134.
Signed-off-by: Devaraj Rangasamy <Devaraj.Rangasamy@amd.com>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit f752ee5b5b86b5f88a5687c9eb0ef9b39859b908 ]
`chip.label` in rza2_gpio_register() could be NULL.
Add the missing check.
Signed-off-by: Chenyuan Yang <chenyuan0y@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/20250210232552.1545887-1-chenyuan0y@gmail.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 73e9cc1ffd3650b12c4eb059dfdafd56e725ceda upstream.
This is not understandable without a comment on endianness
Fixes: afba937e540c9 ("USB: CDC WDM driver")
Cc: stable <stable@kernel.org>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Link: https://lore.kernel.org/r/20250401084749.175246-5-oneukum@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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