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

[Jani Nikula]

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>

---

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);
 }
-- 
2.39.5