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Subject[PATCH 5/6] [RESEND] drm/amd/display: hide an unused variable
Without CONFIG_DEBUG_FS, we get a warning for an unused

drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:6020:33: error: unused variable 'source' [-Werror,-Wunused-variable]

Hide the variable in an #ifdef like its only users.

Fixes: 14b2584636c6 ("drm/amd/display: add functionality to grab DPRX CRC entries.")
Reviewed-by: Harry Wentland <>
Signed-off-by: Arnd Bergmann <>
This was a bugfix for a commit that landed in v5.4-rc1. The
fix was applied by Alex Deucher on Sep 19, but is still not
seen in linux-next.
Resending to make sure this makes it into v5.4-final, but
please ignore if this is already coming.
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 ++
1 file changed, 2 insertions(+)

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 8cab6da512a0..7516a6436822 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -6019,7 +6019,9 @@ static void amdgpu_dm_enable_crtc_interrupts(struct drm_device *dev,
struct drm_crtc *crtc;
struct drm_crtc_state *old_crtc_state, *new_crtc_state;
int i;
enum amdgpu_dm_pipe_crc_source source;

for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
new_crtc_state, i) {
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