On Wed, Aug 30, 2023 at 03:09:13PM +0200, Takashi Iwai wrote:
On Wed, 30 Aug 2023 13:29:57 +0200, Sudip Mukherjee (Codethink) wrote:
Hi All,
The latest mainline kernel branch fails to build alpha, csky and s390 allmodconfig with the error:
drivers/mfd/cs42l43.c:1138:12: error: 'cs42l43_runtime_resume' defined but not used [-Werror=unused-function] 1138 | static int cs42l43_runtime_resume(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~~~ drivers/mfd/cs42l43.c:1124:12: error: 'cs42l43_runtime_suspend' defined but not used [-Werror=unused-function] 1124 | static int cs42l43_runtime_suspend(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/mfd/cs42l43.c:1106:12: error: 'cs42l43_resume' defined but not used [-Werror=unused-function] 1106 | static int cs42l43_resume(struct device *dev) | ^~~~~~~~~~~~~~ drivers/mfd/cs42l43.c:1076:12: error: 'cs42l43_suspend' defined but not used [-Werror=unused-function] 1076 | static int cs42l43_suspend(struct device *dev) | ^~~~~~~~~~~~~~~
git bisect pointed to ace6d1448138 ("mfd: cs42l43: Add support for cs42l43 core driver")
I will be happy to test any patch or provide any extra log if needed.
Adding __maybe_unused for those PM functions should work around it, something like below. Could you check it? If it's confirmed to work, I'll submit properly.
This is probably the correct fix:
https://lore.kernel.org/lkml/20230822114914.340359-1-ckeepax@opensource.cirr...
Just waiting on it to be reviewed.
Thanks, Charles