From: Arnd Bergmann Date: Mon, 4 Mar 2019 20:29:10 +0000 (-0500) Subject: media: staging/intel-ipu3: mark PM function as __maybe_unused X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=948dff7cfa1d7653e7828e7b905863bd24ca5c02;p=openwrt%2Fstaging%2Fblogic.git media: staging/intel-ipu3: mark PM function as __maybe_unused The imgu_rpm_dummy_cb() looks like an API misuse that is explained in the comment above it. Aside from that, it also causes a warning when power management support is disabled: drivers/staging/media/ipu3/ipu3.c:794:12: error: 'imgu_rpm_dummy_cb' defined but not used [-Werror=unused-function] The warning is at least easy to fix by marking the function as __maybe_unused. Fixes: 7fc7af649ca7 ("media: staging/intel-ipu3: Add imgu top level pci device driver") Signed-off-by: Arnd Bergmann Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/staging/media/ipu3/ipu3.c b/drivers/staging/media/ipu3/ipu3.c index d575ac78c8f0..d00d26264c37 100644 --- a/drivers/staging/media/ipu3/ipu3.c +++ b/drivers/staging/media/ipu3/ipu3.c @@ -791,7 +791,7 @@ out: * PCI rpm framework checks the existence of driver rpm callbacks. * Place a dummy callback here to avoid rpm going into error state. */ -static int imgu_rpm_dummy_cb(struct device *dev) +static __maybe_unused int imgu_rpm_dummy_cb(struct device *dev) { return 0; }