This is a note to let you know that I've just added the patch titled leds: simatic-ipc-leds-gpio: Restore LEDS_CLASS dependency to the 6.5-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: leds-simatic-ipc-leds-gpio-restore-leds_class-depend.patch and it can be found in the queue-6.5 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 551390c8afcedcb8029d15bb5909959a15df4416 Author: Arnd Bergmann <arnd@xxxxxxxx> Date: Fri Jun 23 17:22:29 2023 +0200 leds: simatic-ipc-leds-gpio: Restore LEDS_CLASS dependency [ Upstream commit 66c5e98bbf7b7b2ba0a095ef25bf55c7230e846e ] A recent rework accidentally lost the dependency on LEDS_CLASS, which leads to a link error when LED support is disbled: x86_64-linux-ld: drivers/leds/simple/simatic-ipc-leds.o: in function `simatic_ipc_leds_probe': simatic-ipc-leds.c:(.text+0x10c): undefined reference to `devm_led_classdev_register_ext' Add back the dependency that was there originally. Fixes: a6c80bec3c935 ("leds: simatic-ipc-leds-gpio: Add GPIO version of Siemens driver") Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Link: https://lore.kernel.org/r/20230623152233.2246285-1-arnd@xxxxxxxxxx Signed-off-by: Lee Jones <lee@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/leds/simple/Kconfig b/drivers/leds/simple/Kconfig index 44fa0f93cb3b3..02443e745ff3b 100644 --- a/drivers/leds/simple/Kconfig +++ b/drivers/leds/simple/Kconfig @@ -1,6 +1,7 @@ # SPDX-License-Identifier: GPL-2.0-only config LEDS_SIEMENS_SIMATIC_IPC tristate "LED driver for Siemens Simatic IPCs" + depends on LEDS_CLASS depends on SIEMENS_SIMATIC_IPC help This option enables support for the LEDs of several Industrial PCs