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We need the USB fixes in here as well for some follow-on patches.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fixes from Niklas Cassel:
- Add NOLPM quirk for for all Crucial BX SSD1 models.
Considering that we now have had bug reports for 3 different BX SSD1
variants from Crucial with the same product name, make the quirk more
inclusive, to catch more device models from the same generation.
- Fix a trivial NULL pointer dereference in the error path for
ata_host_release().
- Create a ata_port_free(), so that we don't miss freeing ata_port
struct members when freeing a struct ata_port.
- Fix a trivial double free in the error path for ata_host_alloc().
- Ensure that we remove the libata "remapped NVMe device count" sysfs
entry on .probe() error.
* tag 'ata-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: ahci: Clean up sysfs file on error
ata: libata-core: Fix double free on error
ata,scsi: libata-core: Do not leak memory for ata_port struct members
ata: libata-core: Fix null pointer dereference on error
ata: libata-core: Add ATA_HORKAGE_NOLPM for all Crucial BX SSD1 models
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.probe() (ahci_init_one()) calls sysfs_add_file_to_group(), however,
if probe() fails after this call, we currently never call
sysfs_remove_file_from_group().
(The sysfs_remove_file_from_group() call in .remove() (ahci_remove_one())
does not help, as .remove() is not called on .probe() error.)
Thus, if probe() fails after the sysfs_add_file_to_group() call, the next
time we insmod the module we will get:
sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:04.0/remapped_nvme'
CPU: 11 PID: 954 Comm: modprobe Not tainted 6.10.0-rc5 #43
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl+0x5d/0x80
sysfs_warn_dup.cold+0x17/0x23
sysfs_add_file_mode_ns+0x11a/0x130
sysfs_add_file_to_group+0x7e/0xc0
ahci_init_one+0x31f/0xd40 [ahci]
Fixes: 894fba7f434a ("ata: ahci: Add sysfs attribute to show remapped NVMe device count")
Cc: stable@vger.kernel.org
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20240629124210.181537-10-cassel@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>
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If e.g. the ata_port_alloc() call in ata_host_alloc() fails, we will jump
to the err_out label, which will call devres_release_group().
devres_release_group() will trigger a call to ata_host_release().
ata_host_release() calls kfree(host), so executing the kfree(host) in
ata_host_alloc() will lead to a double free:
kernel BUG at mm/slub.c:553!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
CPU: 11 PID: 599 Comm: (udev-worker) Not tainted 6.10.0-rc5 #47
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014
RIP: 0010:kfree+0x2cf/0x2f0
Code: 5d 41 5e 41 5f 5d e9 80 d6 ff ff 4d 89 f1 41 b8 01 00 00 00 48 89 d9 48 89 da
RSP: 0018:ffffc90000f377f0 EFLAGS: 00010246
RAX: ffff888112b1f2c0 RBX: ffff888112b1f2c0 RCX: ffff888112b1f320
RDX: 000000000000400b RSI: ffffffffc02c9de5 RDI: ffff888112b1f2c0
RBP: ffffc90000f37830 R08: 0000000000000000 R09: 0000000000000000
R10: ffffc90000f37610 R11: 617461203a736b6e R12: ffffea00044ac780
R13: ffff888100046400 R14: ffffffffc02c9de5 R15: 0000000000000006
FS: 00007f2f1cabe980(0000) GS:ffff88813b380000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2f1c3acf75 CR3: 0000000111724000 CR4: 0000000000750ef0
PKRU: 55555554
Call Trace:
<TASK>
? __die_body.cold+0x19/0x27
? die+0x2e/0x50
? do_trap+0xca/0x110
? do_error_trap+0x6a/0x90
? kfree+0x2cf/0x2f0
? exc_invalid_op+0x50/0x70
? kfree+0x2cf/0x2f0
? asm_exc_invalid_op+0x1a/0x20
? ata_host_alloc+0xf5/0x120 [libata]
? ata_host_alloc+0xf5/0x120 [libata]
? kfree+0x2cf/0x2f0
ata_host_alloc+0xf5/0x120 [libata]
ata_host_alloc_pinfo+0x14/0xa0 [libata]
ahci_init_one+0x6c9/0xd20 [ahci]
Ensure that we will not call kfree(host) twice, by performing the kfree()
only if the devres_open_group() call failed.
Fixes: dafd6c496381 ("libata: ensure host is free'd on error exit paths")
Cc: stable@vger.kernel.org
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20240629124210.181537-9-cassel@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>
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libsas is currently not freeing all the struct ata_port struct members,
e.g. ncq_sense_buf for a driver supporting Command Duration Limits (CDL).
Add a function, ata_port_free(), that is used to free a ata_port,
including its struct members. It makes sense to keep the code related to
freeing a ata_port in its own function, which will also free all the
struct members of struct ata_port.
Fixes: 18bd7718b5c4 ("scsi: ata: libata: Handle completion of CDL commands using policy 0xD")
Reviewed-by: John Garry <john.g.garry@oracle.com>
Link: https://lore.kernel.org/r/20240629124210.181537-8-cassel@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>
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If the ata_port_alloc() call in ata_host_alloc() fails,
ata_host_release() will get called.
However, the code in ata_host_release() tries to free ata_port struct
members unconditionally, which can lead to the following:
BUG: unable to handle page fault for address: 0000000000003990
PGD 0 P4D 0
Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 10 PID: 594 Comm: (udev-worker) Not tainted 6.10.0-rc5 #44
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014
RIP: 0010:ata_host_release.cold+0x2f/0x6e [libata]
Code: e4 4d 63 f4 44 89 e2 48 c7 c6 90 ad 32 c0 48 c7 c7 d0 70 33 c0 49 83 c6 0e 41
RSP: 0018:ffffc90000ebb968 EFLAGS: 00010246
RAX: 0000000000000041 RBX: ffff88810fb52e78 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88813b3218c0 RDI: ffff88813b3218c0
RBP: ffff88810fb52e40 R08: 0000000000000000 R09: 6c65725f74736f68
R10: ffffc90000ebb738 R11: 73692033203a746e R12: 0000000000000004
R13: 0000000000000000 R14: 0000000000000011 R15: 0000000000000006
FS: 00007f6cc55b9980(0000) GS:ffff88813b300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000003990 CR3: 00000001122a2000 CR4: 0000000000750ef0
PKRU: 55555554
Call Trace:
<TASK>
? __die_body.cold+0x19/0x27
? page_fault_oops+0x15a/0x2f0
? exc_page_fault+0x7e/0x180
? asm_exc_page_fault+0x26/0x30
? ata_host_release.cold+0x2f/0x6e [libata]
? ata_host_release.cold+0x2f/0x6e [libata]
release_nodes+0x35/0xb0
devres_release_group+0x113/0x140
ata_host_alloc+0xed/0x120 [libata]
ata_host_alloc_pinfo+0x14/0xa0 [libata]
ahci_init_one+0x6c9/0xd20 [ahci]
Do not access ata_port struct members unconditionally.
Fixes: 633273a3ed1c ("libata-pmp: hook PMP support and enable it")
Cc: stable@vger.kernel.org
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Link: https://lore.kernel.org/r/20240629124210.181537-7-cassel@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>
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We got another report that CT1000BX500SSD1 does not work with LPM.
If you look in libata-core.c, we have six different Crucial devices that
are marked with ATA_HORKAGE_NOLPM. This model would have been the seventh.
(This quirk is used on Crucial models starting with both CT* and
Crucial_CT*)
It is obvious that this vendor does not have a great history of supporting
LPM properly, therefore, add the ATA_HORKAGE_NOLPM quirk for all Crucial
BX SSD1 models.
Fixes: 7627a0edef54 ("ata: ahci: Drop low power policy board type")
Cc: stable@vger.kernel.org
Reported-by: Alessandro Maggio <alex.tkd.alex@gmail.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218832
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20240627105551.4159447-2-cassel@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small driver fixes for 6.10-rc6. Included in here are:
- IIO driver fixes for reported issues
- Counter driver fix for a reported problem.
All of these have been in linux-next this week with no reported
issues"
* tag 'char-misc-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
counter: ti-eqep: enable clock at probe
iio: chemical: bme680: Fix sensor data read operation
iio: chemical: bme680: Fix overflows in compensate() functions
iio: chemical: bme680: Fix calibration data variable
iio: chemical: bme680: Fix pressure value output
iio: humidity: hdc3020: fix hysteresis representation
iio: dac: fix ad9739a random config compile error
iio: accel: fxls8962af: select IIO_BUFFER & IIO_KFIFO_BUF
iio: adc: ad7266: Fix variable checking bug
iio: xilinx-ams: Don't include ams_ctrl_channels in scan_mask
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ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wbg/counter into char-misc-linus
William writes:
Counter fixes for 6.10
A fix to enable the TI eQEP clock explicitly in the probe callback
rather than hope it's already enabled by something else on the system by
the time we need it.
* tag 'counter-fixes-for-6.10' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wbg/counter:
counter: ti-eqep: enable clock at probe
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The TI eQEP clock is both a functional and interface clock. Since it is
required for the device to function, we should be enabling it at probe.
Up to now, we've just been lucky that the clock was enabled by something
else on the system already.
Fixes: f213729f6796 ("counter: new TI eQEP driver")
Reviewed-by: Judith Mendez <jm@ti.com>
Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://lore.kernel.org/r/20240621-ti-eqep-enable-clock-v2-1-edd3421b54d4@baylibre.com
Signed-off-by: William Breathitt Gray <wbg@kernel.org>
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ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-linus
Jonathan writes:
IIO: 2nd set of fixes for 6.10
The usual mixed bag of new stuff and long term issues that have surfaced
as a particular driver gets more adoption.
adi,ad7266
- Add missing error check that could lead to bad data being reported.
adi,ad9739a
- Fix Kconfig to not allow COMPILE_TEST to override lack SPI support.
bosch,bme680
- Fix units for pressure value (off by factor of 10)
- Fix sign on a calibration variable read back from the device
- Avoid integer overflow in compensation functions.
- Fix an issue with read sequence that leads to stale data and bad first
reading.
freescale,fxls8962af
- Kconfig dependency fixes.
ti,hdc3020
- Fix representation of hysteresis to match ABI by being an offset from
the current event threshold, not an absolute value.
xilinx,ams
- Don't include the ams_ctrl_channels in a computed mask. This driver is
making an unusual use of scan_mask (it doesn't support buffers) and that
lead to an overflow.
* tag 'iio-fixes-for-6.10b' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
iio: chemical: bme680: Fix sensor data read operation
iio: chemical: bme680: Fix overflows in compensate() functions
iio: chemical: bme680: Fix calibration data variable
iio: chemical: bme680: Fix pressure value output
iio: humidity: hdc3020: fix hysteresis representation
iio: dac: fix ad9739a random config compile error
iio: accel: fxls8962af: select IIO_BUFFER & IIO_KFIFO_BUF
iio: adc: ad7266: Fix variable checking bug
iio: xilinx-ams: Don't include ams_ctrl_channels in scan_mask
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A read operation is happening as follows:
a) Set sensor to forced mode
b) Sensor measures values and update data registers and sleeps again
c) Read data registers
In the current implementation the read operation happens immediately
after the sensor is set to forced mode so the sensor does not have
the time to update properly the registers. This leads to the following
2 problems:
1) The first ever value which is read by the register is always wrong
2) Every read operation, puts the register into forced mode and reads
the data that were calculated in the previous conversion.
This behaviour was tested in 2 ways:
1) The internal meas_status_0 register was read before and after every
read operation in order to verify that the data were ready even before
the register was set to forced mode and also to check that after the
forced mode was set the new data were not yet ready.
2) Physically changing the temperature and measuring the temperature
This commit adds the waiting time in between the set of the forced mode
and the read of the data. The function is taken from the Bosch BME68x
Sensor API [1].
[1]: https://github.com/boschsensortec/BME68x_SensorAPI/blob/v4.4.8/bme68x.c#L490
Fixes: 1b3bd8592780 ("iio: chemical: Add support for Bosch BME680 sensor")
Signed-off-by: Vasileios Amoiridis <vassilisamir@gmail.com>
Link: https://lore.kernel.org/r/20240606212313.207550-5-vassilisamir@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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There are cases in the compensate functions of the driver that
there could be overflows of variables due to bit shifting ops.
These implications were initially discussed here [1] and they
were mentioned in log message of Commit 1b3bd8592780 ("iio:
chemical: Add support for Bosch BME680 sensor").
[1]: https://lore.kernel.org/linux-iio/20180728114028.3c1bbe81@archlinux/
Fixes: 1b3bd8592780 ("iio: chemical: Add support for Bosch BME680 sensor")
Signed-off-by: Vasileios Amoiridis <vassilisamir@gmail.com>
Link: https://lore.kernel.org/r/20240606212313.207550-4-vassilisamir@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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According to the BME68x Sensor API [1], the h6 calibration
data variable should be an unsigned integer of size 8.
[1]: https://github.com/boschsensortec/BME68x_SensorAPI/blob/v4.4.8/bme68x_defs.h#L789
Fixes: 1b3bd8592780 ("iio: chemical: Add support for Bosch BME680 sensor")
Signed-off-by: Vasileios Amoiridis <vassilisamir@gmail.com>
Link: https://lore.kernel.org/r/20240606212313.207550-3-vassilisamir@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The IIO standard units are measured in kPa while the driver
is using hPa.
Apart from checking the userspace value itself, it is mentioned also
in the Bosch API [1] that the pressure value is in Pascal.
[1]: https://github.com/boschsensortec/BME68x_SensorAPI/blob/v4.4.8/bme68x_defs.h#L742
Fixes: 1b3bd8592780 ("iio: chemical: Add support for Bosch BME680 sensor")
Signed-off-by: Vasileios Amoiridis <vassilisamir@gmail.com>
Link: https://lore.kernel.org/r/20240606212313.207550-2-vassilisamir@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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According to the ABI docs hysteresis values are represented as offsets to
threshold values. Current implementation represents hysteresis values as
absolute values which is wrong. Nevertheless the device stores them as
absolute values and the datasheet refers to them as clear thresholds. Fix
the reading and writing of hysteresis values by including thresholds into
calculations. Hysteresis values that result in threshold clear values
that are out of limits will be truncated.
To check that the threshold clear values are correct, registers are read
out using i2ctransfer and the corresponding temperature and relative
humidity thresholds are calculated using the formulas in the datasheet.
Fixes: 3ad0e7e5f0cb ("iio: humidity: hdc3020: add threshold events support")
Signed-off-by: Dimitri Fedrau <dima.fedrau@gmail.com>
Reviewed-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Link: https://lore.kernel.org/r/20240605192136.38146-1-dima.fedrau@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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WARNING: unmet direct dependencies detected for REGMAP_SPI
Depends on [n]: SPI [=n]
Selected by [m]:
- AD9739A [=m] && IIO [=m] && (SPI [=n] || COMPILE_TEST [=y])
...
ERROR: modpost: "spi_write_then_read" [drivers/base/regmap/regmap-spi.ko] undefined!
ERROR: modpost: "spi_async" [drivers/base/regmap/regmap-spi.ko] undefined!
ERROR: modpost: "spi_sync" [drivers/base/regmap/regmap-spi.ko] undefined!
ERROR: modpost: "__spi_register_driver" [drivers/iio/dac/ad9739a.ko] undefined!
Fixes: e77603d5468b ("iio: dac: support the ad9739a RF DAC")
Reported-by: k2ci <kernel-bot@kylinos.cn>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202404250156.2PQRWmex-lkp@intel.com/
Signed-off-by: Ke Sun <sunke@kylinos.cn>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20240609030847.2869455-1-sunke@kylinos.cn
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Provide missing symbols to the module:
ERROR: modpost: iio_push_to_buffers [drivers/iio/accel/fxls8962af-core.ko] undefined!
ERROR: modpost: devm_iio_kfifo_buffer_setup_ext [drivers/iio/accel/fxls8962af-core.ko] undefined!
Cc: stable@vger.kernel.org
Fixes: 79e3a5bdd9ef ("iio: accel: fxls8962af: add hw buffered sampling")
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Reviewed-by: Sean Nyekjaer <sean@geanix.com>
Link: https://lore.kernel.org/r/20240605203810.2908980-2-alexander.sverdlin@siemens.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The ret variable was not checked after iio_device_release_direct_mode(),
which could possibly cause errors
Fixes: c70df20e3159 ("iio: adc: ad7266: claim direct mode during sensor read")
Signed-off-by: Fernando Yang <hagisf@usp.br>
Link: https://lore.kernel.org/r/20240603180757.8560-1-hagisf@usp.br
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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ams_enable_channel_sequence constructs a "scan_mask" for all the PS and
PL channels. This works out fine, since scan_index for these channels is
less than 64. However, it also includes the ams_ctrl_channels, where
scan_index is greater than 64, triggering undefined behavior. Since we
don't need these channels anyway, just exclude them.
Fixes: d5c70627a794 ("iio: adc: Add Xilinx AMS driver")
Signed-off-by: Sean Anderson <sean.anderson@linux.dev>
Link: https://lore.kernel.org/r/20240311162800.11074-1-sean.anderson@linux.dev
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are two small staging driver fixes for 6.10-rc6, both for the
vc04_services drivers:
- build fix if CONFIG_DEBUGFS was not set
- initialization check fix that was much reported.
Both of these have been in linux-next this week with no reported
issues"
* tag 'staging-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: vchiq_debugfs: Fix build if CONFIG_DEBUG_FS is not set
staging: vc04_services: vchiq_arm: Fix initialisation check
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Commit 42a2f6664e18 ("staging: vc04_services: Move global g_state to
vchiq_state") adds a parameter to vchiq_debugfs_init, but leaves the
dummy implementation in the !CONFIG_DEBUG_FS case untouched, causing a
compile time error.
Fixes: c3552ab19aeb ("staging: vchiq_debugfs: Fix NPD in vchiq_dump_state")
Signed-off-by: Bernhard Rosenkränzer <bero@baylibre.com>
Reviewed-by: Stefan Wahren <wahrenst@gmx.net>
Link: https://lore.kernel.org/r/20240627124419.2498642-1-bero@baylibre.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The vchiq_state used to be obtained through an accessor which would
validate that the VCHIQ had been initialised correctly with the remote,
or return a null state.
In commit 42a2f6664e18 ("staging: vc04_services: Move global g_state to
vchiq_state") the global state was moved to the vchiq_mgnt structures
stored as a vchiq instance specific context. This conversion removed the
helpers and instead replaced users of this helper with the assumption
that the state is always available and the remote connected.
The conversion does ensure that the state is always available, so some
remaining state null pointer checks that remain are unnecessary, but the
assumption that the remote is present and initialised is incorrect.
Fix this broken assumption by re-introducing the logic that was lost
during the conversion.
Fixes: 42a2f6664e18 ("staging: vc04_services: Move global g_state to vchiq_state")
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Link: https://lore.kernel.org/r/20240620221046.2731704-1-kieran.bingham@ideasonboard.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty / serial / console fixes from Greg KH:
"Here are a bunch of fixes/reverts for 6.10-rc6. Include in here are:
- revert the bunch of tty/serial/console changes that landed in -rc1
that didn't quite work properly yet.
Everyone agreed to just revert them for now and will work on making
them better for a future release instead of trying to quick fix the
existing changes this late in the release cycle
- 8250 driver port count bugfix
- Other tiny serial port bugfixes for reported issues
All of these have been in linux-next this week with no reported
issues"
* tag 'tty-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
Revert "printk: Save console options for add_preferred_console_match()"
Revert "printk: Don't try to parse DEVNAME:0.0 console options"
Revert "printk: Flag register_console() if console is set on command line"
Revert "serial: core: Add support for DEVNAME:0.0 style naming for kernel console"
Revert "serial: core: Handle serial console options"
Revert "serial: 8250: Add preferred console in serial8250_isa_init_ports()"
Revert "Documentation: kernel-parameters: Add DEVNAME:0.0 format for serial ports"
Revert "serial: 8250: Fix add preferred console for serial8250_isa_init_ports()"
Revert "serial: core: Fix ifdef for serial base console functions"
serial: bcm63xx-uart: fix tx after conversion to uart_port_tx_limited()
serial: core: introduce uart_port_tx_limited_flags()
Revert "serial: core: only stop transmit when HW fifo is empty"
serial: imx: set receiver level before starting uart
tty: mcf: MCF54418 has 10 UARTS
serial: 8250_omap: Implementation of Errata i2310
tty: serial: 8250: Fix port count mismatch with the device
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console"
This reverts commit 787a1cabac01c99846070fcf702e53befaf89f79.
Let's roll back all of the serial core and printk console changes that
went into 6.10-rc1 as there still are problems with them that need to be
sorted out.
Link: https://lore.kernel.org/r/ZnpRozsdw6zbjqze@tlindgre-MOBL1
Reported-by: Petr Mladek <pmladek@suse.com>
Reported-by: Tony Lindgren <tony@atomide.com>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit a0f32e2dd99867b164bfebcf36729c2a0d41b30b.
Let's roll back all of the serial core and printk console changes that
went into 6.10-rc1 as there still are problems with them that need to be
sorted out.
Link: https://lore.kernel.org/r/ZnpRozsdw6zbjqze@tlindgre-MOBL1
Reported-by: Petr Mladek <pmladek@suse.com>
Reported-by: Tony Lindgren <tony@atomide.com>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit a8b04cfe7dad84e65df5996e14b435fd356fe62c.
Let's roll back all of the serial core and printk console changes that
went into 6.10-rc1 as there still are problems with them that need to be
sorted out.
Link: https://lore.kernel.org/r/ZnpRozsdw6zbjqze@tlindgre-MOBL1
Reported-by: Petr Mladek <pmladek@suse.com>
Reported-by: Tony Lindgren <tony@atomide.com>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit 4547cd76f08a6f301f6ad563f5d0e4566924ec6b.
Let's roll back all of the serial core and printk console changes that
went into 6.10-rc1 as there still are problems with them that need to be
sorted out.
Link: https://lore.kernel.org/r/ZnpRozsdw6zbjqze@tlindgre-MOBL1
Reported-by: Petr Mladek <pmladek@suse.com>
Reported-by: Tony Lindgren <tony@atomide.com>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit b20172ca6bf489534892b801a5db41bbf5ceec75.
Let's roll back all of the serial core and printk console changes that
went into 6.10-rc1 as there still are problems with them that need to be
sorted out.
Link: https://lore.kernel.org/r/ZnpRozsdw6zbjqze@tlindgre-MOBL1
Reported-by: Petr Mladek <pmladek@suse.com>
Reported-by: Tony Lindgren <tony@atomide.com>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When bcm63xx-uart was converted to uart_port_tx_limited(), it implicitly
added a call to stop_tx(). This causes garbage to be put out on the
serial console. To fix this, pass UART_TX_NOSTOP in flags, and manually
call stop_tx() ourselves analogue to how a similar issue was fixed in
commit 7be50f2e8f20 ("serial: mxs-auart: fix tx").
Fixes: d11cc8c3c4b6 ("tty: serial: use uart_port_tx_limited()")
Cc: stable@vger.kernel.org
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Signed-off-by: Doug Brown <doug@schmorgal.com>
Link: https://lore.kernel.org/r/20240606195632.173255-4-doug@schmorgal.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Set the receiver level to something > 0 before calling imx_uart_start_rx
in rs485_config. This is necessary to avoid an interrupt storm that
might prevent the system from booting. This was seen on an i.MX7 device
when the rs485-rts-active-low property was active in the device tree.
Fixes: 6d215f83e5fc ("serial: imx: warn user when using unsupported configuration")
Cc: stable <stable@kernel.org>
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Link: https://lore.kernel.org/r/20240621153829.183780-1-eichest@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Most of the colfires have up to 5 UARTs but MCF54418 has up-to 10 !
Change the maximum value authorized.
Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@yoseli.org>
Cc: stable <stable@kernel.org>
Fixes: 2545cf6e94b4 ("m68knommu: allow 4 coldfire serial ports")
Link: https://lore.kernel.org/r/20240620-upstream-uart-v1-1-a9d0d95fb19e@yoseli.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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As per Errata i2310[0], Erroneous timeout can be triggered,
if this Erroneous interrupt is not cleared then it may leads
to storm of interrupts, therefore apply Errata i2310 solution.
[0] https://www.ti.com/lit/pdf/sprz536 page 23
Fixes: b67e830d38fa ("serial: 8250: 8250_omap: Fix possible interrupt storm on K3 SoCs")
Cc: stable@vger.kernel.org
Signed-off-by: Udit Kumar <u-kumar1@ti.com>
Link: https://lore.kernel.org/r/20240619105903.165434-1-u-kumar1@ti.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Normally, the number of ports is indicated by the third digit of the
device ID on Moxa PCI serial boards. For example, `0x1121` indicates a
device with 2 ports.
However, `CP116E_A_A` and `CP116E_A_B` are exceptions; they have 8
ports, but the third digit of the device ID is `6`.
This patch introduces a function to retrieve the number of ports on Moxa
PCI serial boards, addressing the issue described above.
Fixes: 37058fd5d239 ("tty: serial: 8250: Add support for MOXA Mini PCIe boards")
Cc: stable <stable@kernel.org>
Signed-off-by: Crescent Hsieh <crescentcy.hsieh@moxa.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20240617063058.18866-1-crescentcy.hsieh@moxa.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a handful of small USB driver fixes for 6.10-rc6 to resolve
some reported issues. Included in here are:
- typec driver bugfixes
- usb gadget driver reverts for commits that were reported to have
problems
- resource leak bugfix
- gadget driver bugfixes
- dwc3 driver bugfixes
- usb atm driver bugfix for when syzbot got loose on it
All of these have been in linux-next this week with no reported issues"
* tag 'usb-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: dwc3: core: Workaround for CSR read timeout
Revert "usb: gadget: u_ether: Replace netif_stop_queue with netif_device_detach"
Revert "usb: gadget: u_ether: Re-attach netif device to mirror detachment"
usb: gadget: aspeed_udc: fix device address configuration
usb: dwc3: core: remove lock of otg mode during gadget suspend/resume to avoid deadlock
usb: typec: ucsi: glink: fix child node release in probe function
usb: musb: da8xx: fix a resource leak in probe()
usb: typec: ucsi_acpi: Add LG Gram quirk
usb: ucsi: stm32: fix command completion handling
usb: atm: cxacru: fix endpoint checking in cxacru_bind()
usb: gadget: printer: fix races against disable
usb: gadget: printer: SS+ support
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This is a workaround for STAR 4846132, which only affects
DWC_usb31 version2.00a operating in host mode.
There is a problem in DWC_usb31 version 2.00a operating
in host mode that would cause a CSR read timeout When CSR
read coincides with RAM Clock Gating Entry. By disable
Clock Gating, sacrificing power consumption for normal
operation.
Cc: stable <stable@kernel.org> # 5.10.x: 1e43c86d: usb: dwc3: core: Add DWC31 version 2.00a controller
Signed-off-by: Jos Wang <joswang@lenovo.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20240619114529.3441-1-joswang1221@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit f49449fbc21e7e9550a5203902d69c8ae7dfd918.
This commit breaks u_ether on some setups (at least Merrifield). The fix
"usb: gadget: u_ether: Re-attach netif device to mirror detachment" party
restores u-ether. However the netif usb: remains up even usb is switched
from device to host mode. This creates problems for user space as the
interface remains in the routing table while not realy present and network
managers (connman) not detecting a network change.
Various attempts to find the root cause were unsuccesful up to now. Therefore
revert until a solution is found.
Link: https://lore.kernel.org/linux-usb/20231006141231.7220-1-hgajjar@de.adit-jv.com/
Reported-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Reported-by: Ferry Toth <fntoth@gmail.com>
Fixes: f49449fbc21e ("usb: gadget: u_ether: Replace netif_stop_queue with netif_device_detach")
Cc: stable@vger.kernel.org
Signed-off-by: Ferry Toth <fntoth@gmail.com>
Link: https://lore.kernel.org/r/20240620204832.24518-3-ftoth@exalondelft.nl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit 76c945730cdffb572c7767073cc6515fd3f646b4.
Prerequisite revert for the reverting of the original commit f49449fbc21e.
Fixes: 76c945730cdf ("usb: gadget: u_ether: Re-attach netif device to mirror detachment")
Fixes: f49449fbc21e ("usb: gadget: u_ether: Replace netif_stop_queue with netif_device_detach")
Reported-by: Ferry Toth <fntoth@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ferry Toth <fntoth@gmail.com>
Link: https://lore.kernel.org/r/20240620204832.24518-2-ftoth@exalondelft.nl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In the aspeed UDC setup, we configure the UDC hardware with the assigned
USB device address.
However, we have an off-by-one in the bitmask, so we're only setting the
lower 6 bits of the address (USB addresses being 7 bits, and the
hardware bitmask being bits 0:6).
This means that device enumeration fails if the assigned address is
greater than 64:
[ 344.607255] usb 1-1: new high-speed USB device number 63 using ehci-platform
[ 344.808459] usb 1-1: New USB device found, idVendor=cc00, idProduct=cc00, bcdDevice= 6.10
[ 344.817684] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 344.825671] usb 1-1: Product: Test device
[ 344.831075] usb 1-1: Manufacturer: Test vendor
[ 344.836335] usb 1-1: SerialNumber: 00
[ 349.917181] usb 1-1: USB disconnect, device number 63
[ 352.036775] usb 1-1: new high-speed USB device number 64 using ehci-platform
[ 352.249432] usb 1-1: device descriptor read/all, error -71
[ 352.696740] usb 1-1: new high-speed USB device number 65 using ehci-platform
[ 352.909431] usb 1-1: device descriptor read/all, error -71
Use the correct mask of 0x7f (rather than 0x3f), and generate this
through the GENMASK macro, so we have numbers that correspond exactly
to the hardware register definition.
Fixes: 055276c13205 ("usb: gadget: add Aspeed ast2600 udc driver")
Cc: stable@vger.kernel.org
Reviewed-by: Neal Liu <neal_liu@aspeedtech.com>
Reviewed-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Link: https://lore.kernel.org/r/20240613-aspeed-udc-v2-1-29501ce9cb7a@codeconstruct.com.au
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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avoid deadlock
When config CONFIG_USB_DWC3_DUAL_ROLE is selected, and trigger system
to enter suspend status with below command:
echo mem > /sys/power/state
There will be a deadlock issue occurring. Detailed invoking path as
below:
dwc3_suspend_common()
spin_lock_irqsave(&dwc->lock, flags); <-- 1st
dwc3_gadget_suspend(dwc);
dwc3_gadget_soft_disconnect(dwc);
spin_lock_irqsave(&dwc->lock, flags); <-- 2nd
This issue is exposed by commit c7ebd8149ee5 ("usb: dwc3: gadget: Fix
NULL pointer dereference in dwc3_gadget_suspend") that removes the code
of checking whether dwc->gadget_driver is NULL or not. It causes the
following code is executed and deadlock occurs when trying to get the
spinlock. In fact, the root cause is the commit 5265397f9442("usb: dwc3:
Remove DWC3 locking during gadget suspend/resume") that forgot to remove
the lock of otg mode. So, remove the redundant lock of otg mode during
gadget suspend/resume.
Fixes: 5265397f9442 ("usb: dwc3: Remove DWC3 locking during gadget suspend/resume")
Cc: Xu Yang <xu.yang_2@nxp.com>
Cc: stable@vger.kernel.org
Signed-off-by: Meng Li <Meng.Li@windriver.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20240618031918.2585799-1-Meng.Li@windriver.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The device_for_each_child_node() macro requires explicit calls to
fwnode_handle_put() in all early exits of the loop if the child node is
not required outside. Otherwise, the child node's refcount is not
decremented and the resource is not released.
The current implementation of pmic_glink_ucsi_probe() makes use of the
device_for_each_child_node(), but does not release the child node on
early returns. Add the missing calls to fwnode_handle_put().
Cc: stable@vger.kernel.org
Fixes: c6165ed2f425 ("usb: ucsi: glink: use the connector orientation GPIO to provide switch events")
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240613-ucsi-glink-release-node-v1-1-f7629a56f70a@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Call usb_phy_generic_unregister() if of_platform_populate() fails.
Fixes: d6299b6efbf6 ("usb: musb: Add support of CPPI 4.1 DMA controller to DA8xx")
Cc: stable <stable@kernel.org>
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/69af1b1d-d3f4-492b-bcea-359ca5949f30@moroto.mountain
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Some LG Gram laptops report a bogus connector change event after a
GET_PDOS command for the partner's source PDOs, which disappears from
the CCI after acknowledging the command. However, the subsequent
GET_CONNECTOR_STATUS in ucsi_handle_connector_change() still reports
this bogus change in bits 5 and 6, leading to the UCSI core re-checking
the partner's source PDOs and thus to an infinite loop.
Fix this by adding a quirk that signals when a potentially buggy GET_PDOS
command is used, checks the status change report and clears it if it is a
bogus event before sending it to the UCSI core.
Signed-off-by: Diogo Ivo <diogo.ivo@tecnico.ulisboa.pt>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240612-gram_quirk-v1-1-52b0ff0e1546@tecnico.ulisboa.pt
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Sometimes errors are seen, when doing DR swap, like:
[ 24.672481] ucsi-stm32g0-i2c 0-0035: UCSI_GET_PDOS failed (-5)
[ 24.720188] ucsi-stm32g0-i2c 0-0035: ucsi_handle_connector_change:
GET_CONNECTOR_STATUS failed (-5)
There may be some race, which lead to read CCI, before the command complete
flag is set, hence returning -EIO. Similar fix has been done also in
ucsi_acpi [1].
In case of a spurious or otherwise delayed notification it is
possible that CCI still reports the previous completion. The
UCSI spec is aware of this and provides two completion bits in
CCI, one for normal commands and one for acks. As acks and commands
alternate the notification handler can determine if the completion
bit is from the current command.
To fix this add the ACK_PENDING bit for ucsi_stm32g0 and only complete
commands if the completion bit matches.
[1] https://lore.kernel.org/lkml/20240121204123.275441-3-lk@c--e.de/
Fixes: 72849d4fcee7 ("usb: typec: ucsi: stm32g0: add support for stm32g0 controller")
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://lore.kernel.org/stable/20240612124656.2305603-1-fabrice.gasnier%40foss.st.com
Cc: stable <stable@kernel.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240612124656.2305603-1-fabrice.gasnier@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Syzbot is still reporting quite an old issue [1] that occurs due to
incomplete checking of present usb endpoints. As such, wrong
endpoints types may be used at urb sumbitting stage which in turn
triggers a warning in usb_submit_urb().
Fix the issue by verifying that required endpoint types are present
for both in and out endpoints, taking into account cmd endpoint type.
Unfortunately, this patch has not been tested on real hardware.
[1] Syzbot report:
usb 1-1: BOGUS urb xfer, pipe 1 != type 3
WARNING: CPU: 0 PID: 8667 at drivers/usb/core/urb.c:502 usb_submit_urb+0xed2/0x18a0 drivers/usb/core/urb.c:502
Modules linked in:
CPU: 0 PID: 8667 Comm: kworker/0:4 Not tainted 5.14.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
RIP: 0010:usb_submit_urb+0xed2/0x18a0 drivers/usb/core/urb.c:502
...
Call Trace:
cxacru_cm+0x3c0/0x8e0 drivers/usb/atm/cxacru.c:649
cxacru_card_status+0x22/0xd0 drivers/usb/atm/cxacru.c:760
cxacru_bind+0x7ac/0x11a0 drivers/usb/atm/cxacru.c:1209
usbatm_usb_probe+0x321/0x1ae0 drivers/usb/atm/usbatm.c:1055
cxacru_usb_probe+0xdf/0x1e0 drivers/usb/atm/cxacru.c:1363
usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:517 [inline]
really_probe+0x23c/0xcd0 drivers/base/dd.c:595
__driver_probe_device+0x338/0x4d0 drivers/base/dd.c:747
driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:777
__device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:894
bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
__device_attach+0x228/0x4a0 drivers/base/dd.c:965
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
device_add+0xc2f/0x2180 drivers/base/core.c:3354
usb_set_configuration+0x113a/0x1910 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0xba/0x100 drivers/usb/core/generic.c:238
usb_probe_device+0xd9/0x2c0 drivers/usb/core/driver.c:293
Reported-and-tested-by: syzbot+00c18ee8497dd3be6ade@syzkaller.appspotmail.com
Fixes: 902ffc3c707c ("USB: cxacru: Use a bulk/int URB to access the command endpoint")
Cc: stable <stable@kernel.org>
Signed-off-by: Nikita Zhandarovich <n.zhandarovich@fintech.ru>
Link: https://lore.kernel.org/r/20240609131546.3932-1-n.zhandarovich@fintech.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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printer_read() and printer_write() guard against the race
against disable() by checking the dev->interface flag,
which in turn is guarded by a spinlock.
These functions, however, drop the lock on multiple occasions.
This means that the test has to be redone after reacquiring
the lock and before doing IO.
Add the tests.
This also addresses CVE-2024-25741
Fixes: 7f2ca14d2f9b9 ("usb: gadget: function: printer: Interface is disabled and returns error")
Cc: stable <stable@kernel.org>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Link: https://lore.kernel.org/r/20240620114039.5767-1-oneukum@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We need to treat super speed plus as super speed, not the default,
which is full speed.
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20240620093800.28901-1-oneukum@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Borislav Petkov:
- Make sure multi-bridge machines get all eiointc interrupt controllers
initialized even if the number of CPUs has been limited by a cmdline
param
- Make sure interrupt lines on liointc hw are configured properly even
when interrupt routing changes
- Avoid use-after-free in the error path of the MSI init code
* tag 'irq_urgent_for_v6.10_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
PCI/MSI: Fix UAF in msi_capability_init
irqchip/loongson-liointc: Set different ISRs for different cores
irqchip/loongson-eiointc: Use early_cpu_to_node() instead of cpu_to_node()
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KFENCE reports the following UAF:
BUG: KFENCE: use-after-free read in __pci_enable_msi_range+0x2c0/0x488
Use-after-free read at 0x0000000024629571 (in kfence-#12):
__pci_enable_msi_range+0x2c0/0x488
pci_alloc_irq_vectors_affinity+0xec/0x14c
pci_alloc_irq_vectors+0x18/0x28
kfence-#12: 0x0000000008614900-0x00000000e06c228d, size=104, cache=kmalloc-128
allocated by task 81 on cpu 7 at 10.808142s:
__kmem_cache_alloc_node+0x1f0/0x2bc
kmalloc_trace+0x44/0x138
msi_alloc_desc+0x3c/0x9c
msi_domain_insert_msi_desc+0x30/0x78
msi_setup_msi_desc+0x13c/0x184
__pci_enable_msi_range+0x258/0x488
pci_alloc_irq_vectors_affinity+0xec/0x14c
pci_alloc_irq_vectors+0x18/0x28
freed by task 81 on cpu 7 at 10.811436s:
msi_domain_free_descs+0xd4/0x10c
msi_domain_free_locked.part.0+0xc0/0x1d8
msi_domain_alloc_irqs_all_locked+0xb4/0xbc
pci_msi_setup_msi_irqs+0x30/0x4c
__pci_enable_msi_range+0x2a8/0x488
pci_alloc_irq_vectors_affinity+0xec/0x14c
pci_alloc_irq_vectors+0x18/0x28
Descriptor allocation done in:
__pci_enable_msi_range
msi_capability_init
msi_setup_msi_desc
msi_insert_msi_desc
msi_domain_insert_msi_desc
msi_alloc_desc
...
Freed in case of failure in __msi_domain_alloc_locked()
__pci_enable_msi_range
msi_capability_init
pci_msi_setup_msi_irqs
msi_domain_alloc_irqs_all_locked
msi_domain_alloc_locked
__msi_domain_alloc_locked => fails
msi_domain_free_locked
...
That failure propagates back to pci_msi_setup_msi_irqs() in
msi_capability_init() which accesses the descriptor for unmasking in the
error exit path.
Cure it by copying the descriptor and using the copy for the error exit path
unmask operation.
[ tglx: Massaged change log ]
Fixes: bf6e054e0e3f ("genirq/msi: Provide msi_device_populate/destroy_sysfs()")
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Mostafa Saleh <smostafa@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Bjorn Heelgas <bhelgaas@google.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240624203729.1094506-1-smostafa@google.com
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The liointc hardware provides separate Interrupt Status Registers (ISR) for
each core. The current code uses always the ISR of core #0, which works
during boot because by default all interrupts are routed to core #0.
When the interrupt routing changes in the firmware configuration then this
causes interrupts to be lost because they are not configured in the
corresponding core.
Use the core index to access the correct ISR instead of a hardcoded 0.
[ tglx: Massaged changelog ]
Fixes: 0858ed035a85 ("irqchip/loongson-liointc: Add ACPI init support")
Co-developed-by: Tianli Xiong <xiongtianli@loongson.cn>
Signed-off-by: Tianli Xiong <xiongtianli@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20240622043338.1566945-1-chenhuacai@loongson.cn
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