Hi,
On Tue, Oct 22, 2019 at 04:27:31PM +0200, Arnd Bergmann wrote:
> When runtime-pm is disabled, we get a few harmless warnings:
>
> drivers/char/hw_random/omap3-rom-rng.c:65:12: error: unused function
> 'omap_rom_rng_runtime_suspend' [-Werror,-Wunused-function]
> drivers/char/hw_random/omap3-rom-rng.c:81:12: error: unused function
> 'omap_rom_rng_runtime_resume' [-Werror,-Wunused-function]
>
> Mark these functions as __maybe_unused so gcc can drop them
> silently.
>
> Fixes: 8d9d4bdc495f ("hwrng: omap3-rom - Use runtime PM instead of custom
> functions")
> Signed-off-by: Arnd Bergmann <a...@arndb.de>
> ---
Reviewed-by: Sebastian Reichel <sebastian.reic...@collabora.com>
-- Sebastian
> drivers/char/hw_random/omap3-rom-rng.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/char/hw_random/omap3-rom-rng.c
> b/drivers/char/hw_random/omap3-rom-rng.c
> index 0b90983c95c8..e08a8887e718 100644
> --- a/drivers/char/hw_random/omap3-rom-rng.c
> +++ b/drivers/char/hw_random/omap3-rom-rng.c
> @@ -62,7 +62,7 @@ static int omap3_rom_rng_read(struct hwrng *rng, void
> *data, size_t max, bool w)
> return r;
> }
>
> -static int omap_rom_rng_runtime_suspend(struct device *dev)
> +static int __maybe_unused omap_rom_rng_runtime_suspend(struct device *dev)
> {
> struct omap_rom_rng *ddata;
> int r;
> @@ -78,7 +78,7 @@ static int omap_rom_rng_runtime_suspend(struct device *dev)
> return 0;
> }
>
> -static int omap_rom_rng_runtime_resume(struct device *dev)
> +static int __maybe_unused omap_rom_rng_runtime_resume(struct device *dev)
> {
> struct omap_rom_rng *ddata;
> int r;
> --
> 2.20.0
>
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