Replace BUG_ON() range check on ch_idx with a return of -EINVAL.
BUG_ON() is deprecated as it crashes the entire kernel on assertion
failure (see Documentation/process/deprecated.rst).
Signed-off-by: Gabriel Rondon <grondon@gmail.com>
Link: https://patch.msgid.link/20260330182255.75241-6-grondon@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Replace BUG_ON() range check on ch_idx with a return of -EINVAL.
BUG_ON() is deprecated as it crashes the entire kernel on assertion
failure (see Documentation/process/deprecated.rst).
Signed-off-by: Gabriel Rondon <grondon@gmail.com>
Link: https://patch.msgid.link/20260330182255.75241-5-grondon@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Replace BUG_ON() range check on ch_idx with a return of -EINVAL.
BUG_ON() is deprecated as it crashes the entire kernel on assertion
failure (see Documentation/process/deprecated.rst).
Signed-off-by: Gabriel Rondon <grondon@gmail.com>
Link: https://patch.msgid.link/20260330182255.75241-4-grondon@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Replace BUG_ON() calls with an early return since the function returns
void.
BUG_ON() is deprecated as it crashes the entire kernel on assertion
failure (see Documentation/process/deprecated.rst).
Signed-off-by: Gabriel Rondon <grondon@gmail.com>
Link: https://patch.msgid.link/20260330182255.75241-3-grondon@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Replace BUG_ON() calls with graceful error handling.
For the null/uninitialized channel checks, return -EINVAL instead of
crashing the kernel. For the zero bus_address check, release the
spinlock and return -EFAULT.
BUG_ON() is deprecated as it crashes the entire kernel on assertion
failure (see Documentation/process/deprecated.rst).
Signed-off-by: Gabriel Rondon <grondon@gmail.com>
Link: https://patch.msgid.link/20260330182255.75241-2-grondon@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix spelling mistakes in driver_usage.txt documentation:
- 'can by used' should be 'can be used'
- 'config itmes' should be 'config items'
- 'isochrnous' should be 'isochronous'
- 'packts_per_xact' should be 'packets_per_xact'
Signed-off-by: Mustafa Karamanli <mbarancemkaramanli@gmail.com>
Link: https://patch.msgid.link/20260309055836.3741-1-mbarancemkaramanli@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The ROUND_UP_TO macro reuses argument 'd', which can cause unintended
side effects. Remove it and replace the macro call with the existing
round_up() function.
Signed-off-by: Mark Adamenko <marusik.adamenko@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/20260306021926.7475-1-marusik.adamenko@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Replace dev_err(&pdev->dev, "%s\n", "clk_prepare_enable failed") with
the direct format string dev_err(&pdev->dev, "clk_prepare_enable
failed\n"). The extra level of indirection through %s is unnecessary.
Signed-off-by: Artem Lytkin <iprintercanon@gmail.com>
Link: https://patch.msgid.link/20260224180750.28468-4-iprintercanon@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Replace hardcoded -EFAULT returns with dev_err_probe() and PTR_ERR()
when devm_clk_get() fails in fsl_mx6_enable(). This ensures the
correct error code is propagated (e.g. -EPROBE_DEFER for deferred
probing) and avoids log noise during probe deferral.
Signed-off-by: Artem Lytkin <iprintercanon@gmail.com>
Link: https://patch.msgid.link/20260224180750.28468-3-iprintercanon@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
devm_clk_get() never returns NULL, so IS_ERR_OR_NULL() checks are
unnecessary. Replace them with IS_ERR() for both the "mlb" and
"pll8_mlb" clock lookups in fsl_mx6_enable().
Signed-off-by: Artem Lytkin <iprintercanon@gmail.com>
Link: https://patch.msgid.link/20260224180750.28468-2-iprintercanon@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The return value of clk_prepare_enable() for the PLL clock is not
checked, while the same call for the MLB clock is properly checked
earlier in the function. If clk_prepare_enable() fails, the driver
continues without the PLL clock enabled, leading to undefined
hardware behavior.
Add the missing error check and disable the MLB clock on failure to
keep the cleanup consistent with the rest of the function.
Signed-off-by: Artem Lytkin <iprintercanon@gmail.com>
Link: https://patch.msgid.link/20260216201921.1788-2-iprintercanon@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The dim2 driver currently uses generic pr_* logging macros for
reporting hardware errors. Modern hardware drivers should use the
device-specific dev_* logging macros.
This provides better context in the system logs by identifying the
specific hardware instance associated with the error or warning,
which is especially helpful in systems with multiple controllers.
Signed-off-by: Zeeshan Ahmad <zeeshanahmad022019@gmail.com>
Link: https://patch.msgid.link/20260210065121.3661-3-zeeshanahmad022019@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The dim2 driver is currently too talkative in the system logs.
Informational messages such as node addresses and state changes
are useful for developers but provide unnecessary noise for
regular users during normal operation.
Move these non-critical info messages to the debug level using
dev_dbg(). This ensures a quiet log by default while preserving
the information for debugging purposes.
Signed-off-by: Zeeshan Ahmad <zeeshanahmad022019@gmail.com>
Link: https://patch.msgid.link/20260210065121.3661-2-zeeshanahmad022019@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:
Single allocations: kmalloc(sizeof(TYPE), ...)
are replaced with: kmalloc_obj(TYPE, ...)
Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with: kmalloc_objs(TYPE, COUNT, ...)
Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...)
(where TYPE may also be *VAR)
The resulting allocations no longer return "void *", instead returning
"TYPE *".
Signed-off-by: Kees Cook <kees@kernel.org>
There is a pattern in the loops where the lock is dropped
to call a specific function and then re-acquired.
The list can be exposed during this short gap, creating a potential
race condition. This patch fixes the problem by replacing the list
head with a local free list using list_replace_init(), instead of
using the lock/unlock pattern in the loop.
Signed-off-by: Minu Jin <s9430939@naver.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/20260205021620.1165137-1-s9430939@naver.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Replace unsafe macro with function to avoid side effects.
Signed-off-by: Ethan Tidmore <ethantidmore06@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/20260123191150.3281-1-ethantidmore06@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The MOST I2C driver has been completely broken for five years without
anyone noticing so remove the driver from staging.
Specifically, commit 723de0f917 ("staging: most: remove device from
interface structure") started requiring drivers to set the interface
device pointer before registration, but the I2C driver was never updated
which results in a NULL pointer dereference if anyone ever tries to
probe it.
Fixes: 723de0f917 ("staging: most: remove device from interface structure")
Cc: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20251029093442.29256-1-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Multiple drivers that use v4l2_fh and call v4l2_fh_del() manually reset
the file->private_data pointer to NULL in their video device .release()
file operation handler. Move the code to the v4l2_fh_del() function to
avoid direct access to file->private_data in drivers. This requires
adding a file pointer argument to the function.
Changes to drivers have been generated with the following coccinelle
semantic patch:
@@
expression fh;
identifier filp;
identifier release;
type ret;
@@
ret release(..., struct file *filp, ...)
{
<...
- filp->private_data = NULL;
...
- v4l2_fh_del(fh);
+ v4l2_fh_del(fh, filp);
...>
}
@@
expression fh;
identifier filp;
identifier release;
type ret;
@@
ret release(..., struct file *filp, ...)
{
<...
- v4l2_fh_del(fh);
+ v4l2_fh_del(fh, filp);
...
- filp->private_data = NULL;
...>
}
@@
expression fh;
identifier filp;
identifier release;
type ret;
@@
ret release(..., struct file *filp, ...)
{
<...
- v4l2_fh_del(fh);
+ v4l2_fh_del(fh, filp);
...>
}
Manual changes have been applied to Documentation/ to update the usage
patterns, to drivers/media/v4l2-core/v4l2-fh.c to update the
v4l2_fh_del() prototype and reset file->private_data, and to
include/media/v4l2-fh.h to update the v4l2_fh_del() function prototype
and its documentation.
Additionally, white space issues have been fixed manually in
drivers/usb/gadget/function/uvc_v4l2.c
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
All the drivers that use v4l2_fh and call v4l2_fh_add() manually store a
pointer to the v4l2_fh instance in file->private_data in their video
device .open() file operation handler. Move the code to the
v4l2_fh_add() function to avoid direct access to file->private_data in
drivers. This requires adding a file pointer argument to the function.
Changes to drivers have been generated with the following coccinelle
semantic patch:
@@
expression fh;
identifier filp;
identifier open;
type ret;
@@
ret open(..., struct file *filp, ...)
{
<...
- filp->private_data = fh;
...
- v4l2_fh_add(fh);
+ v4l2_fh_add(fh, filp);
...>
}
@@
expression fh;
identifier filp;
identifier open;
type ret;
@@
ret open(..., struct file *filp, ...)
{
<...
- v4l2_fh_add(fh);
+ v4l2_fh_add(fh, filp);
...
- filp->private_data = fh;
...>
}
Manual changes have been applied to Documentation/ to update the usage
patterns, to drivers/media/v4l2-core/v4l2-fh.c to update the
v4l2_fh_add() prototype set file->private_data, and to
include/media/v4l2-fh.h to update the v4l2_fh_add() function prototype
and its documentation.
Additionally, white space issues have been fixed manually in
drivers/media/platform/nvidia/tegra-vde/v4l2.c,
drivers/media/platform/rockchip/rkvdec/rkvdec.c,
drivers/media/v4l2-core/v4l2-fh.c and
drivers/staging/most/video/video.c.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Accessing file->private_data manually to retrieve the v4l2_fh pointer is
error-prone, as the field is a void * and will happily cast implicitly
to any pointer type.
Replace all remaining locations that read the v4l2_fh pointer directly
from file->private_data with usage of the file_to_v4l2_fh() function.
The change was generated manually.
No functional change is intended, this only paves the way to remove
direct accesses to file->private_data and make V4L2 drivers safer.
Other accesses to the field will be addressed separately.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Most V4L2 drivers store the v4l2_fh pointer in file->private_data. The
most driver instead stores the pointer to the driver-specific structure
that embeds the v4l2_fh. Switch to storing the v4l2_fh pointer itself to
standardize behaviour across drivers. This also prepares for future
refactoring that depends on v4l2_fh being stored in private_data.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
After commit 0edb555a65 ("platform: Make platform_driver::remove()
return void") .remove() is (again) the right callback to implement for
platform drivers.
Convert all staging drivers to use .remove(), with the eventual goal to
drop struct platform_driver::remove_new(). As .remove() and .remove_new()
have the same prototypes, conversion is done by just changing the structure
member name in the driver initializer.
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20241001085751.282113-1-sergio.paracuellos@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
These drivers don't use the driver_data member of struct i2c_device_id,
so don't explicitly initialize this member.
This prepares putting driver_data in an anonymous union which requires
either no initialization or named designators. But it's also a nice
cleanup on its own.
While touching the initializer, also remove the comma after the sentinel
entry.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://lore.kernel.org/r/20240920153430.503212-15-u.kleine-koenig@baylibre.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch makes three error messages in the driver easier to read by
capitalizing the first letters properly.
For example, "channel already linked" becomes "Channel already linked", and
"expect" becomes "expected", as you would typically
find in an error message.
This patch improves user experience by making the errors clearer.
Signed-off-by: Steven Davis <goldside000@outlook.com>
Link: https://lore.kernel.org/r/SJ2P223MB1026E786B28986901BC1C126F7A92@SJ2P223MB1026.NAMP223.PROD.OUTLOOK.COM
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # tegra-video
Acked-by: Parthiban Veerasooran <parthiban.veerasooran@microchip.com>
Acked-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20230714175002.4064428-1-robh@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
After commit b8a1a4cd5a ("i2c: Provide a temporary .probe_new()
call-back type"), all drivers being converted to .probe_new() and then
03c835f498 ("i2c: Switch .probe() to not take an id parameter") convert
back to (the new) .probe() to be able to eventually drop .probe_new() from
struct i2c_driver.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230524151646.486847-6-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230403154014.2564054-18-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Splitting function header to multiple lines because of 80 characters per
line limit, results in ending the function call line with '('.
This leads to CHECK reported by checkpatch.pl
Move the function parameters right after the '(' in the function call
line. Align the rest of the parameters to the opening parenthesis.
Signed-off-by: Khadija Kamran <kamrankhadijadj@gmail.com>
Link: https://lore.kernel.org/r/ZByu29jb1mE3KOsn@khadija-virtual-machine
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Splitting function header to multiple lines because of 80 characters per
line limit, results in ending the function call line with '('.
This leads to CHECK reported by checkpatch.pl
Move the function parameters right after the '(' in the function call
line.
Signed-off-by: Khadija Kamran <kamrankhadijadj@gmail.com>
Link: https://lore.kernel.org/r/ZBytWDocM7XbXkRx@khadija-virtual-machine
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Convert `iface_to_hdm` macro into a static inline function.
it is not great to have macro that use `container_of` macro,
because from looking at the definition one cannot tell
what type it applies to.
One can get the same benefit from an efficiency point of view
by making an inline function.
Suggested-by: Julia Lawall <julia.lawall@inria.fr>
Signed-off-by: Menna Mahmoud <eng.mennamahmoud.mm@gmail.com>
Link: https://lore.kernel.org/r/20230320212239.22452-1-eng.mennamahmoud.mm@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Convert `to_hdm` macro into a static inline function.
it is not great to have macro that use `container_of` macro,
because from looking at the definition one cannot tell
what type it applies to.
One can get the same benefit from an efficiency point of view
by making an inline function.
Suggested-by: Julia Lawall <julia.lawall@inria.fr>
Signed-off-by: Menna Mahmoud <eng.mennamahmoud.mm@gmail.com>
Link: https://lore.kernel.org/r/20230320103356.6498-1-eng.mennamahmoud.mm@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
According to commit 890cc39a87 ("drivers: provide
devm_platform_get_and_ioremap_resource()"), convert
platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Link: https://lore.kernel.org/r/20230308063653.92879-1-yang.lee@linux.alibaba.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20221118224540.619276-570-uwe@kleine-koenig.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Correct the misleading struct type name dim_ch_state_t to dim_ch_state
since this not a typedef but a normal structure declaration.
Suggested-by: Julia Lawall <julia.lawall@inria.fr>
Signed-off-by: Deepak R Varma <drv@mailo.com>
Link: https://lore.kernel.org/r/Y1GDQO+06fD24Pf/@debian-BULLSEYE-live-builder-AMD64
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The value returned by an i2c driver's remove function is mostly ignored.
(Only an error message is printed if the value is non-zero that the
error is ignored.)
So change the prototype of the remove function to return no value. This
way driver authors are not tempted to assume that passing an error to
the upper layer is a good idea. All drivers are adapted accordingly.
There is no intended change of behaviour, all callbacks were prepared to
return 0 before.
Reviewed-by: Peter Senna Tschudin <peter.senna@gmail.com>
Reviewed-by: Jeremy Kerr <jk@codeconstruct.com.au>
Reviewed-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Crt Mori <cmo@melexis.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Marek Behún <kabel@kernel.org> # for leds-turris-omnia
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Petr Machata <petrm@nvidia.com> # for mlxsw
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> # for surface3_power
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> # for bmc150-accel-i2c + kxcjk-1013
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # for media/* + staging/media/*
Acked-by: Miguel Ojeda <ojeda@kernel.org> # for auxdisplay/ht16k33 + auxdisplay/lcd2s
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # for versaclock5
Reviewed-by: Ajay Gupta <ajayg@nvidia.com> # for ucsi_ccg
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio
Acked-by: Peter Rosin <peda@axentia.se> # for i2c-mux-*, max9860
Acked-by: Adrien Grassein <adrien.grassein@gmail.com> # for lontium-lt8912b
Reviewed-by: Jean Delvare <jdelvare@suse.de> # for hwmon, i2c-core and i2c/muxes
Acked-by: Corey Minyard <cminyard@mvista.com> # for IPMI
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> # for drivers/power
Acked-by: Krzysztof Hałasa <khalasa@piap.pl>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Tasklets have long been deprecated as being too heavy on the system
by running in irq context - and this is not a performance critical
path. If a higher priority process wants to run, it must wait for
the tasklet to finish before doing so. A more suitable equivalent
is to converted to threaded irq instead and service channels in
regular task context.
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Link: https://lore.kernel.org/r/20220411151620.129178-2-dave@stgolabs.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Here is the big set of staging driver updates for 5.18-rc1.
Loads of tiny cleanups for almost all staging drivers in here, nothing
major at all. Highlights include:
- remove the ashmem Android driver. It is long-dead and if
there are any legacy userspace applications still using it,
the Android kernel images will maintain it, the community
shouldn't care about it anymore
- wfx wifi driver major cleanups. Should be ready to merge out
of staging soon, and will coordinate with the wifi maintainers
after -rc1 is out
- major cleanups and unwinding of the layers of the r8188eu
driver. It's amazing just how many unneeded layers of
abstraction is in there, just when we think it's done, another
is found...
- lots of tiny coding style cleanups in many other staging
drivers.
There will be merge conflict with a fbtft change and the spi driver
changes in your tree, but it's pretty obvious what to do (the function
shouldn't return anything.)
All have been in linux-next for a while with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver updates from Greg KH:
"Here is the big set of staging driver updates for 5.18-rc1.
Loads of tiny cleanups for almost all staging drivers in here, nothing
major at all. Highlights include:
- remove the ashmem Android driver. It is long-dead and if there are
any legacy userspace applications still using it, the Android
kernel images will maintain it, the community shouldn't care about
it anymore
- wfx wifi driver major cleanups. Should be ready to merge out of
staging soon, and will coordinate with the wifi maintainers after
-rc1 is out
- major cleanups and unwinding of the layers of the r8188eu driver.
It's amazing just how many unneeded layers of abstraction is in
there, just when we think it's done, another is found...
- lots of tiny coding style cleanups in many other staging drivers.
All have been in linux-next for a while with no reported problems"
* tag 'staging-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (455 commits)
staging: r8188eu: remove unnecessary memset in r8188eu
staging: greybus: introduce pwm_ops::apply
staging: rts5208: Resolve checkpatch.pl issues.
staging: sm750fb: fix naming style
staging: fbtft: Consider type of init sequence values in fbtft_init_display()
staging: fbtft: Constify buf parameter in fbtft_dbg_hex()
staging: mmal-vchiq: clear redundant item named bulk_scratch
mips: dts: ralink: add MT7621 SoC
staging: r8188eu: remove some unused local ieee80211 macros
staging: r8188eu: make rtl8188e_process_phy_info static
staging: r8188eu: remove unused function prototype
staging: r8188eu: remove three unused receive defines
staging: r8188eu: remove unnecessary initializations
staging: rtl8192e: Fix spelling mistake "RESQUEST" -> "REQUEST"
MAINTAINERS: remove the obsolete file entry for staging in ANDROID DRIVERS
staging: r8188eu: proper error handling in rtw_init_drv_sw
staging: r8188eu: call _cancel_timer_ex from _rtw_free_recv_priv
staging: vt6656: Removed unused variable vt3342_vnt_threshold
staging: vt6656: Removed unused variable bb_vga_0
staging: remove ashmem
...
media Kconfig has two entries associated to V4L API:
VIDEO_DEV and VIDEO_V4L2.
On Kernel 2.6.x, there were two V4L APIs, each one with its own flag.
VIDEO_DEV were meant to:
1) enable Video4Linux and make its Kconfig options to appear;
2) it makes the Kernel build the V4L core.
while VIDEO_V4L2 where used to distinguish between drivers that
implement the newer API and drivers that implemented the former one.
With time, such meaning changed, specially after the removal of
all V4L version 1 drivers.
At the current implementation, VIDEO_DEV only does (1): it enables
the media options related to V4L, that now has:
menu "Video4Linux options"
visible if VIDEO_DEV
source "drivers/media/v4l2-core/Kconfig"
endmenu
but it doesn't affect anymore the V4L core drivers.
The rationale is that the V4L2 core has a "soft" dependency
at the I2C bus, and now requires to select a number of other
Kconfig options:
config VIDEO_V4L2
tristate
depends on (I2C || I2C=n) && VIDEO_DEV
select RATIONAL
select VIDEOBUF2_V4L2 if VIDEOBUF2_CORE
default (I2C || I2C=n) && VIDEO_DEV
In the past, merging them would be tricky, but it seems that it is now
possible to merge those symbols, in order to simplify V4L dependencies.
Let's keep VIDEO_DEV, as this one is used on some make *defconfig
configurations.
Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> # for meson-vdec & meson-ge2d
Acked-by: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
Acked-by: Łukasz Stelmach <l.stelmach@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Replace "struct list_head head = LIST_HEAD_INIT(head)" with
"LIST_HEAD(head)" to simplify the code.
Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Link: https://lore.kernel.org/r/20220209032645.38305-1-cai.huoqing@linux.dev
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Replace "struct list_head head = LIST_HEAD_INIT(head)" with
"LIST_HEAD(head)" to simplify the code.
Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Link: https://lore.kernel.org/r/20220209032715.38437-1-cai.huoqing@linux.dev
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use "renesas,rcar-gen3-mlp" instead of "rcar,medialb-dim2"
- the documented vendor prefix for Renesas is "renesas,"
- existing r-car devices use "rcar-genN-XXX" pattern.
There are currently no in-tree users to update.
Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Link: https://lore.kernel.org/r/20211226082530.2245198-2-nikita.yoush@cogentembedded.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit 406f42fa0d ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it got through appropriate helpers.
Convert staging from ether_addr_copy() to eth_hw_addr_set():
@@
expression dev, np;
@@
- ether_addr_copy(dev->dev_addr, np)
+ eth_hw_addr_set(dev, np)
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20211019171243.1412240-3-kuba@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit 723de0f917 ("staging: most: remove device from interface
structure") moved registration of driver-provided struct device to
the most subsystem. This updated dim2 driver as well.
However, struct device passed to register_device() becomes refcounted,
and must not be explicitly deallocated, but must provide release method
instead. Which is incompatible with managing it via devres.
This patch makes the device structure allocated without devres, adds
device release method, and moves device destruction there.
Fixes: 723de0f917 ("staging: most: remove device from interface structure")
Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Link: https://lore.kernel.org/r/20211005143448.8660-2-nikita.yoush@cogentembedded.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit 723de0f917 ("staging: most: remove device from interface
structure") moved registration of driver-provided struct device to
the most subsystem.
Dim2 used to register the same struct device to provide a custom device
attribute. This causes double-registration of the same struct device.
Fix that by moving the custom attribute to driver's dev_groups.
This moves attribute to the platform_device object, which is a better
location for platform-specific attributes anyway.
Fixes: 723de0f917 ("staging: most: remove device from interface structure")
Acked-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Link: https://lore.kernel.org/r/20211011061117.21435-1-nikita.yoush@cogentembedded.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
