From: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> When compile tested with W=1 on x86_64 with driver as built-in: stmpe-ts.c:371:34: error: unused variable 'stmpe_ts_ids' [-Werror,-Wunused-const-variable] Ideally this would be referenced from the platform_driver, but since the compatible string is already matched by the mfd driver for its parent device, that would break probing. In this case, the of_device_id table just serves as a module alias for loading the driver, while the device itself is probed using the platform device name. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> Link: https://lore.kernel.org/lkml/20240403080702.3509288-8-arnd@xxxxxxxxxx/ Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> --- drivers/input/touchscreen/stmpe-ts.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/input/touchscreen/stmpe-ts.c b/drivers/input/touchscreen/stmpe-ts.c index a94a1997f96b..3900aa2e3a90 100644 --- a/drivers/input/touchscreen/stmpe-ts.c +++ b/drivers/input/touchscreen/stmpe-ts.c @@ -366,7 +366,7 @@ static struct platform_driver stmpe_ts_driver = { }; module_platform_driver(stmpe_ts_driver); -static const struct of_device_id stmpe_ts_ids[] = { +static const struct of_device_id stmpe_ts_ids[] __maybe_unused = { { .compatible = "st,stmpe-ts", }, { }, }; -- 2.39.5