linux-kernel - [PATCH 32/40] drm/amd/display/amdgpu_dm/amdgpu_dm: Mark 'link_bandwidth_kbps' as __maybe

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Message-Id: <20201126134240.3214176-33-lee.jones@linaro.org>
Date:   Thu, 26 Nov 2020 13:42:32 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     lee.jones@...aro.org
Cc:     linux-kernel@...r.kernel.org,
        Harry Wentland <harry.wentland@....com>,
        Leo Li <sunpeng.li@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org
Subject: [PATCH 32/40] drm/amd/display/amdgpu_dm/amdgpu_dm: Mark 'link_bandwidth_kbps' as __maybe_unused

'link_bandwidth_kbps' is always obtained, but only used if
CONFIG_DRM_AMD_DC_DCN is defined.

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function ‘create_stream_for_sink’:
 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:5080:11: warning: variable ‘link_bandwidth_kbps’ set but not used [-Wunused-but-set-variable]

Cc: Harry Wentland <harry.wentland@....com>
Cc: Leo Li <sunpeng.li@....com>
Cc: Alex Deucher <alexander.deucher@....com>
Cc: "Christian König" <christian.koenig@....com>
Cc: David Airlie <airlied@...ux.ie>
Cc: Daniel Vetter <daniel@...ll.ch>
Cc: amd-gfx@...ts.freedesktop.org
Cc: dri-devel@...ts.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@...aro.org>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 08539f4315864..ac7643d73bc68 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5077,7 +5077,7 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
 #if defined(CONFIG_DRM_AMD_DC_DCN)
 	struct dsc_dec_dpcd_caps dsc_caps;
 #endif
-	uint32_t link_bandwidth_kbps;
+	uint32_t __maybe_unused link_bandwidth_kbps;
 
 	struct dc_sink *sink = NULL;
 	if (aconnector == NULL) {
-- 
2.25.1