[PATCH v2 2/3] drm: renesas: rcar-du: annotate rcar_cmm_read() with __maybe_unused

Laurent Pinchart laurent.pinchart at ideasonboard.com
Thu Dec 5 16:02:34 UTC 2024


On Thu, Dec 05, 2024 at 05:03:00PM +0200, Jani Nikula wrote:
> Building with clang and and W=1 leads to warning about unused
> rcar_cmm_read(). Fix by annotating it with __maybe_unused.
> 
> See also commit 6863f5643dd7 ("kbuild: allow Clang to find unused static
> inline functions for W=1 build").
> 
> Signed-off-by: Jani Nikula <jani.nikula at intel.com>

https://lore.kernel.org/r/20240911095113.GB4470@pendragon.ideasonboard.com

I wonder if Dave and Sima are starting to ignore my pull request in the
hope I'll switch to using drm-misc :-S I'll send another one.

> ---
> 
> Cc: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> Cc: Kieran Bingham <kieran.bingham+renesas at ideasonboard.com>
> Cc: linux-renesas-soc at vger.kernel.org
> Cc: Nathan Chancellor <nathan at kernel.org>
> ---
>  drivers/gpu/drm/renesas/rcar-du/rcar_cmm.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_cmm.c b/drivers/gpu/drm/renesas/rcar-du/rcar_cmm.c
> index 26a2f5ad8ee5..ea52b0af9226 100644
> --- a/drivers/gpu/drm/renesas/rcar-du/rcar_cmm.c
> +++ b/drivers/gpu/drm/renesas/rcar-du/rcar_cmm.c
> @@ -32,7 +32,7 @@ struct rcar_cmm {
>  	} lut;
>  };
>  
> -static inline int rcar_cmm_read(struct rcar_cmm *rcmm, u32 reg)
> +static inline __maybe_unused int rcar_cmm_read(struct rcar_cmm *rcmm, u32 reg)
>  {
>  	return ioread32(rcmm->base + reg);
>  }

-- 
Regards,

Laurent Pinchart


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