linux-kernel - [PATCH] gpu/drm/mediatek: fix unused parameter warning

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Message-Id: <20201012115700.8925-1-bernard@vivo.com>
Date:   Mon, 12 Oct 2020 04:56:59 -0700
From:   Bernard Zhao <bernard@...o.com>
To:     Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Matthias Brugger <matthias.bgg@...il.com>,
        dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     opensource.kernel@...o.com, Bernard Zhao <bernard@...o.com>
Subject: [PATCH] gpu/drm/mediatek: fix unused parameter warning

Functions mtk_drm_crtc_atomic_flush & mtk_drm_crtc_atomic_enable
& mtk_drm_crtc_atomic_disable don`t use the second parameter.
So we may get warning like : warning: unused parameter '***'
[-Wunused-parameter].
This change is to fix the compile warning with -Wunused-parameter.

Signed-off-by: Bernard Zhao <bernard@...o.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index 4d29568be3f5..6e55ec0e80bb 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -542,7 +542,7 @@ static void mtk_drm_crtc_atomic_enable(struct drm_crtc *crtc,
 }
 
 static void mtk_drm_crtc_atomic_disable(struct drm_crtc *crtc,
-					struct drm_crtc_state *old_state)
+					struct drm_crtc_state __attribute__((unused)) *old_state)
 {
 	struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
 	struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0];
@@ -575,7 +575,7 @@ static void mtk_drm_crtc_atomic_disable(struct drm_crtc *crtc,
 }
 
 static void mtk_drm_crtc_atomic_begin(struct drm_crtc *crtc,
-				      struct drm_crtc_state *old_crtc_state)
+				      struct drm_crtc_state __attribute__((unused)) *old_crtc_state)
 {
 	struct mtk_crtc_state *state = to_mtk_crtc_state(crtc->state);
 	struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
@@ -592,7 +592,7 @@ static void mtk_drm_crtc_atomic_begin(struct drm_crtc *crtc,
 }
 
 static void mtk_drm_crtc_atomic_flush(struct drm_crtc *crtc,
-				      struct drm_crtc_state *old_crtc_state)
+				      struct drm_crtc_state __attribute__((unused)) *old_crtc_state)
 {
 	struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
 	int i;
-- 
2.28.0