Zhang Jianhua [off-list ref] wrote:

If CONFIG_ATH9K=y, the following errors will be seen while compiling
gpio.c

drivers/net/wireless/ath/ath9k/gpio.o: In function `ath_deinit_leds':
gpio.c:(.text+0x604): undefined reference to `led_classdev_unregister'
gpio.c:(.text+0x604): relocation truncated to fit: R_AARCH64_CALL26
against undefined symbol `led_classdev_unregister'
drivers/net/wireless/ath/ath9k/gpio.o: In function `ath_init_leds':
gpio.c:(.text+0x708): undefined reference to `led_classdev_register_ext'
gpio.c:(.text+0x708): relocation truncated to fit: R_AARCH64_CALL26
against undefined symbol `led_classdev_register_ext'

Reported-by: Hulk Robot <redacted>
Signed-off-by: Zhang Jianhua <redacted>

No responses to my questions so I'm dropping this.

Patch set to Changes Requested.

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20210330120533.102712-1-zhangjianhua18@huawei.com/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches