The delta velocity is defined as a piece-wise integration of
acceleration data. The delta velocity represents the linear velocity
change between two consecutive measurements and it
is measured in m / s (meters per second).
In order to track the total linear velocity change during a desired
period of time, simply sum-up the delta velocity samples acquired
during that time.
IIO currently does not offer a suitable channel type for this
type of measurements hence this patch adds it.
Signed-off-by: Ramona Bolboaca <ramona.bolboaca@analog.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20230808075059.645525-3-ramona.bolboaca@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The delta angle is defined as a piece-wise integration of angular
velocity data. The delta angle represents the amount of
angular displacement between two consecutive measurements and it
is measured in radians.
In order to track the total angular displacement during a desired
period of time, simply sum-up the delta angle samples acquired
during that time.
IIO currently does not offer a suitable channel type for this
type of measurements hence this patch adds it.
Signed-off-by: Ramona Bolboaca <ramona.bolboaca@analog.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20230808075059.645525-2-ramona.bolboaca@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
There is nothing from string_helpers.h used in the driver, correct
the header inclusion block accordingly.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Dmitry Rokosov <ddrokosov@sberdevices.ru>
Link: https://lore.kernel.org/r/20230808164152.66748-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
There is nothing from string_helpers.h used in the driver, correct
the header inclusion block accordingly.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Matti Vaittinen <mazziesaccount@gmail.com>
Link: https://lore.kernel.org/r/20230808164204.66818-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Commit 0f3a8c3f34 ("iio: Add support for creating IIO devices via configfs")
declared but never implemented iio_sw_device_type_configfs_{un}register().
Commit b662f809d4 ("iio: core: Introduce IIO software triggers") declared but
never implemented iio_sw_trigger_type_configfs_{un}register().
Commit a3e0b51884 ("iio: accel: add support for FXLS8962AF/FXLS8964AF accelerometers")
declared but never implemented fxls8962af_core_remove().
Commit 8dedcc3eee ("iio: core: centralize ioctl() calls to the main chardev")
declared but never implemented iio_device_ioctl().
Commit d430f3c36c ("iio: imu: inv_mpu6050: Use regmap instead of i2c specific functions")
removed inv_mpu6050_write_reg() but not its declaration.
Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20230811095701.35372-1-yuehaibing@huawei.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Convert enum->pointer for data in the match tables, so that
device_get_match_data() can do match against OF/ACPI/I2C tables, once i2c
bus type match support added to it.
Add struct tmp11x_info and replace enum->struct *tmp11x_info for data in
the match table. Drop tmp117_identify() and simplify tmp117_probe() by
replacing device_get_match_data() and id lookup for retrieving data by
i2c_get_match_data().
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Link: https://lore.kernel.org/r/20230812161154.196555-1-biju.das.jz@bp.renesas.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Replace device_get_match_data()->i2c_get_match_data() to extend matching
support for ID table.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Stefan Windfeldt-Prytz <stefan.windfeldt-prytz@axis.com>
Tested-by: Stefan Windfeldt-Prytz <stefan.windfeldt-prytz@axis.com>
Link: https://lore.kernel.org/r/20230812151908.188696-1-biju.das.jz@bp.renesas.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Replace device_get_match_data()->i2c_get_match_data by making similar I2C
and DT-based matching table to extend matching support for ID table.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20230812150838.185055-1-biju.das.jz@bp.renesas.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Convert enum->pointer for data in the ID table, so that
device_get_match_data() can do match against OF/ACPI/I2C tables, once i2c
bus type match support added to it.
Replace enum->struct *ds1803_cfg for data in the ID table and simplify
ds1803_probe() by replacing device_get_match_data() with
i2c_get_match_data().
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230812144106.163355-1-biju.das.jz@bp.renesas.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Convert enum->pointer for data in the match tables, so that
device_get_match_data() can do match against OF/ACPI/I2C tables, once i2c
bus type match support added to it.
Add product_id variable to struct sgp_device and remove the local variable
product_id in probe() and replace enum->struct *sgp_device for data in the
match table. Simplify theprobe() by replacing device_get_match_data() and
ID lookup for retrieving data by i2c_get_match_data().
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230812165730.216180-1-biju.das.jz@bp.renesas.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Added support for HMC540SLP3E broadband 4-bit Silicon IC digital
attenuator with a 15 dB control range and wide frequency coverage
(0.1 to 8 GHz).
Signed-off-by: Ana-Maria Cusco <ana-maria.cusco@analog.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230816110906.144540-2-ana-maria.cusco@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This adds support for the Analog Devices HMC540s 1 dB LSB
Silicon MMIC 4-Bit Digital Positive Control Attenuator, 0.1 - 8 GHz
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Ana-Maria Cusco <ana-maria.cusco@analog.com>
Link: https://lore.kernel.org/r/20230816110906.144540-1-ana-maria.cusco@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
ALSA sequencer core still delivers events to the disabled UMP Group,
leaving this handling to the device. But it's rather risky and it's
easy to imagine that such an unexpected event may screw up the device
firmware.
This patch avoids the superfluous event deliveries by setting the
group_filter of the UMP client as default, and evaluate the
group_filter properly at delivery from non-UMP clients.
The grouop_filter is updated upon the dynamic UMP Function Block
updates, so that it follows the change of the disabled UMP Groups,
too.
Fixes: d2b7060777 ("ALSA: seq: Add UMP group filter")
Link: https://lore.kernel.org/r/20230912085144.32534-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
MD Danish Anwar says:
====================
Add support for ICSSG on AM64x EVM
This series adds support for ICSSG driver on AM64x EVM.
First patch of the series adds compatible for AM64x EVM in icssg-prueth
dt binding. Second patch adds support for AM64x compatible in the ICSSG
driver.
This series addresses comments on [v1] (which was posted as RFC).
This series is based on the latest net-next/main. This series has no
dependency.
Changes from v1 to v2:
*) Made the compatible list in patch 1 alphanumerically ordered as asked
by Krzysztof.
*) Dropped the RFC tag.
*) Added RB tags of Andrew and Roger.
[v1] https://lore.kernel.org/all/20230830113724.1228624-1-danishanwar@ti.com/
====================
Link: https://lore.kernel.org/r/20230911054308.2163076-1-danishanwar@ti.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Add AM64x ICSSG support which is similar to am65x SR2.0, but required:
- all ring configured in exposed ring mode
- always fill both original and buffer fields in cppi5 desc
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Add compatible for AM64x in icssg-prueth dt bindings. AM64x supports
ICSSG similar to AM65x SR2.0.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Add support for the WMI methods used to turn off and adjust the
brightness of the secondary "screenpad" device found on some high-end
ASUS laptops like the GX650P series and others.
There are some small quirks with this device when considering only the
raw WMI methods:
1. The Off method can only switch the device off
2. Changing the brightness turns the device back on
3. To turn the device back on the brightness must be > 1
4. When the device is off the brightness can't be changed (so it is
stored by the driver if device is off).
5. Booting with a value of 0 brightness (retained by bios) means the bios
will set a value of >0 <15
6. When the device is off it is "unplugged"
asus_wmi sets the minimum brightness as 20 in general use, and 60 for
booting with values <= min.
The ACPI methods are used in a new backlight device named asus_screenpad.
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Link: https://lore.kernel.org/r/20230830032237.42987-2-luke@ljones.dev
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Add a comment explaining why the special x86_android_tablet_get_gpiod()
helper is necessary for some of the GPIOs used in the x86-android-tablets;
and that for normal GPIO lookups this example should not be followed.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20230911210928.264908-1-hdegoede@redhat.com
Detailed error message is already printed at the end of the function, so
drop redundant one a few lines earlier.
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20230909063613.2867-2-jernej.skrabec@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Simpilfy probe() by replacing of_device_get_match_data() and ID lookup for
retrieving match data by i2c_get_match_data().
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20230909110459.12453-1-biju.das.jz@bp.renesas.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add system pm ops to save and restore pinctrl registers
when suspending and resuming the driver, respectively.
Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
Link: https://lore.kernel.org/r/20230905122105.117000-3-hal.feng@starfivetech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The issue was found when we enabled CONFIG_PM and tested edge events using
libgpiod.
> # gpiomon -r gpiochip0 55
> gpiomon: error waiting for events: Permission denied
`gpiomon` will call irq_chip_pm_get() and then call pm_runtime_resume_and_get()
if (IS_ENABLED(CONFIG_PM) && sfp->gc.irq.domain->pm_dev).
pm_runtime_resume_and_get() will fail if the runtime pm of pinctrl device
is disabled.
As we expect the pinctrl driver can be always working and never suspend
during runtime, unset sfp->gc.irq.domain->pm_dev to make sure
pm_runtime_resume_and_get() won't be called when setting irq.
Fixes: 447976ab62 ("pinctrl: starfive: Add StarFive JH7110 sys controller driver")
Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
Link: https://lore.kernel.org/r/20230905122105.117000-2-hal.feng@starfivetech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
gpiochip_get_desc() now lives in linux/gpio/driver.h and there is no
longer any need to include GPIOLIB's private header.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
It makes sense for a GPIO driver to want to get its own descriptor
without requesting it. After all, the driver knows that it'll still be
valid. Let's move this helper to linux/gpio/driver.h.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
gpiod_is_active_low() is defined in linux/gpio/consumer.h. It's only
because we're pulling in the gpiolib.h private header that we get this
declaration implicitly but let's fix it as that is going away soon.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Driver remove() must call pm_runtime_dont_use_autosuspend().
Drivers that call pm_runtime_use_autosuspend() must disable
it in driver remove(). Unfortunately until recently this was
only mentioned in 1 line in a 900+ line document so most
people hadn't noticed this. It has only recently been added
to the kerneldoc of pm_runtime_use_autosuspend().
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: 73cfbfa9ca ("ALSA: hda/cs35l56: Add driver for Cirrus Logic CS35L56 amplifier")
Link: https://lore.kernel.org/r/20230908101223.2656901-1-rf@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Simpilfy probe() by replacing device_get_match_data() and ID lookup for
retrieving match data by i2c_get_match_data().
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230902082225.8777-1-biju.das.jz@bp.renesas.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
I got the below warning when do fuzzing test:
BUG: KASAN: null-ptr-deref in scatterwalk_copychunks+0x320/0x470
Read of size 4 at addr 0000000000000008 by task kworker/u8:1/9
CPU: 0 PID: 9 Comm: kworker/u8:1 Tainted: G OE
Hardware name: linux,dummy-virt (DT)
Workqueue: pencrypt_parallel padata_parallel_worker
Call trace:
dump_backtrace+0x0/0x420
show_stack+0x34/0x44
dump_stack+0x1d0/0x248
__kasan_report+0x138/0x140
kasan_report+0x44/0x6c
__asan_load4+0x94/0xd0
scatterwalk_copychunks+0x320/0x470
skcipher_next_slow+0x14c/0x290
skcipher_walk_next+0x2fc/0x480
skcipher_walk_first+0x9c/0x110
skcipher_walk_aead_common+0x380/0x440
skcipher_walk_aead_encrypt+0x54/0x70
ccm_encrypt+0x13c/0x4d0
crypto_aead_encrypt+0x7c/0xfc
pcrypt_aead_enc+0x28/0x84
padata_parallel_worker+0xd0/0x2dc
process_one_work+0x49c/0xbdc
worker_thread+0x124/0x880
kthread+0x210/0x260
ret_from_fork+0x10/0x18
This is because the value of rec_seq of tls_crypto_info configured by the
user program is too large, for example, 0xffffffffffffff. In addition, TLS
is asynchronously accelerated. When tls_do_encryption() returns
-EINPROGRESS and sk->sk_err is set to EBADMSG due to rec_seq overflow,
skmsg is released before the asynchronous encryption process ends. As a
result, the UAF problem occurs during the asynchronous processing of the
encryption module.
If the operation is asynchronous and the encryption module returns
EINPROGRESS, do not free the record information.
Fixes: 635d939817 ("net/tls: free record only on encryption error")
Signed-off-by: Liu Jian <liujian56@huawei.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://lore.kernel.org/r/20230909081434.2324940-1-liujian56@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
We access internals of struct gpio_device and struct gpio_desc because
it's easier but it can actually be avoided and we're working towards a
better encapsulation of GPIO data structures across the kernel so let's
start at home.
Instead of checking gpio_desc flags, let's just track the requests of
GPIOs in the driver. We also already store the information about
direction of simulated lines.
For kobjects needed by sysfs callbacks: we can iterate over the children
devices of the top-level platform device and compare their fwnodes
against the one passed to the init function from probe.
While at it: fix one line break and remove the untrue part about
configfs callbacks using dev_get_drvdata() from a comment.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
ib-x86-android-tablets-v6.7: v6.6-rc1 + ib-pdx86-android-tablets
for merging into the GPIO subsystem for v6.7.
-----BEGIN PGP SIGNATURE-----
iQFIBAABCAAyFiEEuvA7XScYQRpenhd+kuxHeUQDJ9wFAmT++0EUHGhkZWdvZWRl
QHJlZGhhdC5jb20ACgkQkuxHeUQDJ9wpeQgAuseg8r6ZtneCmmRuD2s6fcPaAgPX
YoX14tWV8iHDRmNktg504kO+V6qW7XDRYAoQ2zx0yMSdi7jPZSNtHJxLLnhPL9FZ
0sx6KwCFUyhXtF5HEr3jC21kg+94wPRe8XQCQ2zLZ+7mta+272gZZREyBi4CBfYv
N3mSgiBYEfWgdY0Ye4HcMrg3yDKcCspcc6Wy3tErFjrw5emdMvPIl4INurECQ3lq
f2b5iVmpWK00xG+rFUFEUt+pp5fjCawOsnvvbnrC2xG++m8/N6UmVdAO2/JnXCrL
ZrxNM7WUKR0prCCj+s0uy9Otzz5X6DbkpZ8RY7e5s8ywN/O+yUNWlc7n5A==
=mgID
-----END PGP SIGNATURE-----
Merge tag 'platform-drivers-x86-ib-x86-android-tablets-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 into gpio/for-next
Immutable branch between pdx86 android tablets branch and GPIO due for the v6.7 merge window
ib-x86-android-tablets-v6.7: v6.6-rc1 + ib-pdx86-android-tablets
for merging into the GPIO subsystem for v6.7.
Write into 'pctrl->gpio_bank' happens before the check for GPIO index
validity, so out of bounds write may happen.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: a1d1e0e3d8 ("pinctrl: nuvoton: Add driver for WPCM450")
Signed-off-by: Mikhail Kobuk <m.kobuk@ispras.ru>
Reviewed-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Link: https://lore.kernel.org/r/20230825101532.6624-1-m.kobuk@ispras.ru
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The current ref-cycles event is only available on the fixed counter 2.
Starting from the GLC and GRT core, the architectural UnHalted Reference
Cycles event (0x013c) which is available on general-purpose counters
can collect the exact same events as the fixed counter 2.
Update the mapping of ref-cycles to 0x013c. So the ref-cycles can be
available on both fixed counter 2 and general-purpose counters.
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230911144139.2354015-1-kan.liang@linux.intel.com
Unnecessary multiplexing is triggered when running an "instructions"
event on an MTL.
perf stat -e cpu_core/instructions/,cpu_core/instructions/ -a sleep 1
Performance counter stats for 'system wide':
115,489,000 cpu_core/instructions/ (50.02%)
127,433,777 cpu_core/instructions/ (49.98%)
1.002294504 seconds time elapsed
Linux architectural perf events, e.g., cycles and instructions, usually
have dedicated fixed counters. These events also have equivalent events
which can be used in the general-purpose counters. The counters are
precious. In the intel_pmu_check_event_constraints(), perf check/extend
the event constraints of these events. So these events can utilize both
fixed counters and general-purpose counters.
The following cleanup commit:
97588df87b ("perf/x86/intel: Add common intel_pmu_init_hybrid()")
forgot adding the intel_pmu_check_event_constraints() into update_pmu_cap().
The architectural perf events cannot utilize the general-purpose counters.
The code to check and update the counters, event constraints and
extra_regs is the same among hybrid systems. Move
intel_pmu_check_hybrid_pmus() to init_hybrid_pmu(), and
emove the duplicate check in update_pmu_cap().
Fixes: 97588df87b ("perf/x86/intel: Add common intel_pmu_init_hybrid()")
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230911135128.2322833-1-kan.liang@linux.intel.com
Eduard Zingerman says:
====================
For a device bound BPF program with flag BPF_F_XDP_DEV_BOUND_ONLY,
in case if device does not support offload, __bpf_prog_dev_bound_init()
creates a dummy bpf_offload_netdev struct with .offdev field set to NULL.
This dummy struct might be reused for programs without this flag
bound to the same device. However, bpf_prog_offload_verifier_prep()
that uses bpf_offload_netdev assumes that .offdev field cannot be NULL.
This bug was reported by syzbot in [1].
[1] https://lore.kernel.org/bpf/000000000000d97f3c060479c4f8@google.com/
====================
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Cold functions and their non-cold counterparts can use _THIS_IP_ to
reference each other. Don't warn about !ENDBR in that case.
Note that for GCC this is currently irrelevant in light of the following
commit
c27cd083cf ("Compiler attributes: GCC cold function alignment workarounds")
which disabled cold functions in the kernel. However this may still be
possible with Clang.
Fixes several warnings like the following:
drivers/scsi/bnx2i/bnx2i.prelink.o: warning: objtool: bnx2i_hw_ep_disconnect+0x19d: relocation to !ENDBR: bnx2i_hw_ep_disconnect.cold+0x0
drivers/net/ipvlan/ipvlan.prelink.o: warning: objtool: ipvlan_addr4_event.cold+0x28: relocation to !ENDBR: ipvlan_addr4_event+0xda
drivers/net/ipvlan/ipvlan.prelink.o: warning: objtool: ipvlan_addr6_event.cold+0x26: relocation to !ENDBR: ipvlan_addr6_event+0xb7
drivers/net/ethernet/broadcom/tg3.prelink.o: warning: objtool: tg3_set_ringparam.cold+0x17: relocation to !ENDBR: tg3_set_ringparam+0x115
drivers/net/ethernet/broadcom/tg3.prelink.o: warning: objtool: tg3_self_test.cold+0x17: relocation to !ENDBR: tg3_self_test+0x2e1
drivers/target/iscsi/cxgbit/cxgbit.prelink.o: warning: objtool: __cxgbit_free_conn.cold+0x24: relocation to !ENDBR: __cxgbit_free_conn+0xfb
net/can/can.prelink.o: warning: objtool: can_rx_unregister.cold+0x2c: relocation to !ENDBR: can_rx_unregister+0x11b
drivers/net/ethernet/qlogic/qed/qed.prelink.o: warning: objtool: qed_spq_post+0xc0: relocation to !ENDBR: qed_spq_post.cold+0x9a
drivers/net/ethernet/qlogic/qed/qed.prelink.o: warning: objtool: qed_iwarp_ll2_comp_syn_pkt.cold+0x12f: relocation to !ENDBR: qed_iwarp_ll2_comp_syn_pkt+0x34b
net/tipc/tipc.prelink.o: warning: objtool: tipc_nametbl_publish.cold+0x21: relocation to !ENDBR: tipc_nametbl_publish+0xa6
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/d8f1ab6a23a6105bc023c132b105f245c7976be6.1694476559.git.jpoimboe@kernel.org
Fix for a bug observable under the following sequence of events:
1. Create a network device that does not support XDP offload.
2. Load a device bound XDP program with BPF_F_XDP_DEV_BOUND_ONLY flag
(such programs are not offloaded).
3. Load a device bound XDP program with zero flags
(such programs are offloaded).
At step (2) __bpf_prog_dev_bound_init() associates with device (1)
a dummy bpf_offload_netdev struct with .offdev field set to NULL.
At step (3) __bpf_prog_dev_bound_init() would reuse dummy struct
allocated at step (2).
However, downstream usage of the bpf_offload_netdev assumes that
.offdev field can't be NULL, e.g. in bpf_prog_offload_verifier_prep().
Adjust __bpf_prog_dev_bound_init() to require bpf_offload_netdev
with non-NULL .offdev for offloaded BPF programs.
Fixes: 2b3486bc2d ("bpf: Introduce device-bound XDP programs")
Reported-by: syzbot+291100dcb32190ec02a8@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/bpf/000000000000d97f3c060479c4f8@google.com/
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20230912005539.2248244-2-eddyz87@gmail.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
errname() returns the name of an errcode; this functionality is
otherwise only available for error pointers via %pE - bcachefs uses this
for better error messages.
Signed-off-by: Christopher James Halse Rogers <raof@ubuntu.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
printbuf now needs to know the number of characters that would have been
written if the buffer was too small, like snprintf(); this changes
string_get_size() to return the the return value of snprintf().
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
The bcachefs module wants it, and there doesn't seem to be any
reason it shouldn't be exported like the other functions.
Signed-off-by: Christopher James Halse Rogers <raof@ubuntu.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
New helper for bcachefs - bcachefs doesn't want the
inode_dec_link_count() call that d_tmpfile does, it handles i_nlink on
its own atomically with other btree updates
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: linux-fsdevel@vger.kernel.org
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christian Brauner <brauner@kernel.org>
