Commit Graph

8 Commits

Author SHA1 Message Date
Jiri Slaby (SUSE)
93174c05dd irqchip: Use dev_fwnode()
irq_domain_create_simple() takes a fwnode as the first argument. It can be
extracted from struct device using the dev_fwnode() helper instead of using
of_node with of_fwnode_handle().

So use the dev_fwnode() helper.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250611104348.192092-10-jirislaby@kernel.org
2025-06-12 15:08:12 +02:00
Jiri Slaby (SUSE)
affdc0d1bd irqchip: Switch to irq_domain_create_*()
irq_domain_add_*() interfaces are going away as being obsolete now.
Switch to the preferred irq_domain_create_*() ones. Those differ in the
node parameter: They take more generic struct fwnode_handle instead of
struct device_node. Therefore, of_fwnode_handle() is added around the
original parameter.

Note some of the users can likely use dev->fwnode directly instead of
indirect of_fwnode_handle(dev->of_node). But dev->fwnode is not
guaranteed to be set for all, so this has to be investigated on case to
case basis (by people who can actually test with the HW).

[ tglx: Fix up subject prefix ]

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Changhuang Liang <changhuang.liang@starfivetech.com>
Link: https://lore.kernel.org/all/20250319092951.37667-22-jirislaby@kernel.org
2025-05-16 21:06:09 +02:00
Uwe Kleine-König
cc47268cb4 irqchip: Switch back to struct platform_driver::remove()
After commit 0edb555a65 ("platform: Make platform_driver::remove() return
void") .remove() is (again) the right callback to implement for platform
drivers.

Convert all platform drivers below drivers/irqchip/ 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: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20241109173828.291172-2-u.kleine-koenig@baylibre.com
2024-11-26 20:09:06 +01:00
Uwe Kleine-König
d1c762d93a irqchip/renesas-rza1: Convert to platform_driver::remove_new() callback
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 ignored (apart
from emitting a warning) 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. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

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>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/1a80e31525d0b02063d2ff1baaaa5e87418f54b6.1703284359.git.u.kleine-koenig@pengutronix.de
2024-02-27 18:12:10 +01:00
Nick Alcock
2752626e3e irqchip: remove MODULE_LICENSE in non-modules
Since commit 8b41fc4454 ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: linux-modules@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Hitomi Hasegawa <hasegawa-hitomi@fujitsu.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Marc Zyngier <maz@kernel.org>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
2023-04-13 13:13:52 -07:00
Geert Uytterhoeven
3ce8c70ece irqchip/renesas-rza1: Use semicolons instead of commas
This code works, but it is cleaner to use semicolons at the end of
statements instead of commas.

Extracted from a big anonymous patch by Julia Lawall
<julia.lawall@inria.fr>.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Ulrich Hecht <uli+renesas@fpond.eu>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/b1710bb6ea5faa7a7fe74404adb0beb951e0bf8c.1631699160.git.geert+renesas@glider.be
2021-09-22 14:37:59 +01:00
Wen Yang
7c8e90ddf0 irqchip/renesas-rza1: Prevent use-after-free in rza1_irqc_probe()
The gic_node is still being used in the rza1_irqc_parse_map() call
after the of_node_put() call, which may result in use-after-free.

Fixes: a644ccb819 ("irqchip: Add Renesas RZ/A1 Interrupt Controller driver")
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lkml.kernel.org/r/1562566745-7447-3-git-send-email-wen.yang99@zte.com.cn
2019-07-09 14:53:50 +02:00
Geert Uytterhoeven
a644ccb819 irqchip: Add Renesas RZ/A1 Interrupt Controller driver
Add a driver for the Renesas RZ/A1 Interrupt Controller.

This supports using up to 8 external interrupts on RZ/A1, with
configurable sense select.

NMI edge select is not yet supported.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-05-29 10:42:25 +01:00