From: Arnd Bergmann <arnd@arndb.de>

The driver builds cleanly only when CONFIG_OF is enabled, otherwise the
compiler notices an unused symbol:

sound/soc/qcom/qdsp6/q6usb.c:401:34: error: 'q6usb_dai_device_id' defined but not used [-Werror=unused-const-variable=]

The driver does not support legacy board files, so the of_match_ptr()
annotation has no use here and can be removed to avoid the warning.

Fixes: e0dd9240f13a ("ASoC: qcom: qdsp6: Fetch USB offload mapped card and PCM device")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 sound/soc/qcom/qdsp6/q6usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/qcom/qdsp6/q6usb.c b/sound/soc/qcom/qdsp6/q6usb.c
index adba0446f301..ebe0c2425927 100644
--- a/sound/soc/qcom/qdsp6/q6usb.c
+++ b/sound/soc/qcom/qdsp6/q6usb.c
@@ -407,7 +407,7 @@ MODULE_DEVICE_TABLE(of, q6usb_dai_device_id);
 static struct platform_driver q6usb_dai_platform_driver = {
 	.driver = {
 		.name = "q6usb-dai",
-		.of_match_table = of_match_ptr(q6usb_dai_device_id),
+		.of_match_table = q6usb_dai_device_id,
 	},
 	.probe = q6usb_dai_dev_probe,
 	/*
-- 
2.39.5

On Fri, May 23, 2025 at 02:11:47PM +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
> 
> The driver builds cleanly only when CONFIG_OF is enabled, otherwise the
> compiler notices an unused symbol:
> 
> sound/soc/qcom/qdsp6/q6usb.c:401:34: error: 'q6usb_dai_device_id' defined but not used [-Werror=unused-const-variable=]
> 
> The driver does not support legacy board files, so the of_match_ptr()
> annotation has no use here and can be removed to avoid the warning.
> 
> Fixes: e0dd9240f13a ("ASoC: qcom: qdsp6: Fetch USB offload mapped card and PCM device")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>  sound/soc/qcom/qdsp6/q6usb.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

I'll take this in the USB tree as that's where the offending commit came
from.

Thanks!

greg k-h