atomisp_mrfld_power() has no more callers and produces a warning: drivers/staging/media/atomisp/pci/atomisp_v4l2.c:764:12: error: unused function 'atomisp_mrfld_power' [-Werror,-Wunused-function] Mark the function as unused while the PM code is being debugged, expecting that it will be used again in the future and should not just be removed. Fixes: 95d1f398c4dc ("media: atomisp: keep the ISP powered on when setting it") Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> --- drivers/staging/media/atomisp/pci/atomisp_v4l2.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c index 694268d133c0..10abb35ba0e0 100644 --- a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c +++ b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c @@ -761,7 +761,8 @@ static void punit_ddr_dvfs_enable(bool enable) pr_info("DDR DVFS, door bell is not cleared within 3ms\n"); } -static int atomisp_mrfld_power(struct atomisp_device *isp, bool enable) +static __attribute__((unused)) int +atomisp_mrfld_power(struct atomisp_device *isp, bool enable) { unsigned long timeout; u32 val = enable ? MRFLD_ISPSSPM0_IUNIT_POWER_ON : -- 2.26.2