linux-kernel - [PATCH] drm/amd/display: use ARRAY_SIZE for base60_refresh

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Date:   Wed,  9 Jun 2021 18:09:26 +0800
From:   Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
To:     harry.wentland@....com
Cc:     sunpeng.li@....com, alexander.deucher@....com,
        christian.koenig@....com, Xinhui.Pan@....com, airlied@...ux.ie,
        daniel@...ll.ch, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Subject: [PATCH] drm/amd/display: use ARRAY_SIZE for base60_refresh_rates

Use ARRAY_SIZE instead of dividing sizeof array with sizeof an
element.

Clean up the following coccicheck warning:

./drivers/gpu/drm/amd/display/dc/core/dc_resource.c:448:47-48: WARNING:
Use ARRAY_SIZE.

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 57afe71..3f00989 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -445,7 +445,7 @@ bool resource_are_vblanks_synchronizable(
 {
 	uint32_t base60_refresh_rates[] = {10, 20, 5};
 	uint8_t i;
-	uint8_t rr_count = sizeof(base60_refresh_rates)/sizeof(base60_refresh_rates[0]);
+	uint8_t rr_count = ARRAY_SIZE(base60_refresh_rates);
 	uint64_t frame_time_diff;
 
 	if (stream1->ctx->dc->config.vblank_alignment_dto_params &&
-- 
1.8.3.1