On 2021/7/27 1:59, Bart Van Assche wrote: > On 6/11/21 6:06 AM, YueHaibing wrote: >> drivers/scsi/ufs/ufshcd.c:9770:12: warning: ‘ufshcd_rpmb_resume’ defined but not used [-Wunused-function] >> static int ufshcd_rpmb_resume(struct device *dev) >> ^~~~~~~~~~~~~~~~~~ >> drivers/scsi/ufs/ufshcd.c:9037:12: warning: ‘ufshcd_wl_runtime_resume’ defined but not used [-Wunused-function] >> static int ufshcd_wl_runtime_resume(struct device *dev) >> ^~~~~~~~~~~~~~~~~~~~~~~~ >> drivers/scsi/ufs/ufshcd.c:9017:12: warning: ‘ufshcd_wl_runtime_suspend’ defined but not used [-Wunused-function] >> static int ufshcd_wl_runtime_suspend(struct device *dev) >> ^~~~~~~~~~~~~~~~~~~~~~~~~ >> >> Move it into #ifdef block to fix this. >> >> Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx> >> --- >> drivers/scsi/ufs/ufshcd.c | 4 +++- >> 1 file changed, 3 insertions(+), 1 deletion(-) >> >> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c >> index b87ff68aa9aa..0c54589e186a 100644 >> --- a/drivers/scsi/ufs/ufshcd.c >> +++ b/drivers/scsi/ufs/ufshcd.c >> @@ -8926,6 +8926,7 @@ static int __ufshcd_wl_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op) >> return ret; >> } >> +#ifdef CONFIG_PM_SLEEP >> static int __ufshcd_wl_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op) >> { >> int ret; >> @@ -9053,7 +9054,6 @@ static int ufshcd_wl_runtime_resume(struct device *dev) >> return ret; >> } >> -#ifdef CONFIG_PM_SLEEP >> static int ufshcd_wl_suspend(struct device *dev) >> { >> struct scsi_device *sdev = to_scsi_device(dev); >> @@ -9766,6 +9766,7 @@ static inline int ufshcd_clear_rpmb_uac(struct ufs_hba *hba) >> return ret; >> } >> +#ifdef CONFIG_PM_SLEEP >> static int ufshcd_rpmb_resume(struct device *dev) >> { >> struct ufs_hba *hba = wlun_dev_to_hba(dev); >> @@ -9774,6 +9775,7 @@ static int ufshcd_rpmb_resume(struct device *dev) >> ufshcd_clear_rpmb_uac(hba); >> return 0; >> } >> +#endif >> static const struct dev_pm_ops ufs_rpmb_pm_ops = { >> SET_RUNTIME_PM_OPS(NULL, ufshcd_rpmb_resume, NULL) > > Hi YueHaibing, > > Can you take a look at https://lore.kernel.org/linux-scsi/20210722033439.26550-1-bvanassche@xxxxxxx/T/#m6e7a02fc79634b5b77cfb77849253ac41d021389? I let the kernel robot verify that patch before I posted it on the linux-scsi mailing list. __ufshcd_wl_resume() is needed while CONFIG_PM is enabled, and my patch v2 has been Applied. See: https://lore.kernel.org/r/20210617031326.36908-1-yuehaibing@xxxxxxxxxx I will let Hulk Robot test your patch serials, and report if any. > > Thanks, > > Bart. > .