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From 525c62d8f942505378461536185b29d6e35c682d Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <natechancellor@gmail.com>
Date: Sat, 23 Nov 2019 12:36:39 -0700
Subject: [PATCH 4655/4736] drm/amd/display: Use NULL for pointer assignment in
copy_stream_update_to_stream
Clang warns:
../drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:1965:26: warning:
expression which evaluates to zero treated as a null pointer constant of
type 'struct dc_dsc_config *' [-Wnon-literal-null-conversion]
update->dsc_config = false;
^~~~~
../drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:1971:25: warning:
expression which evaluates to zero treated as a null pointer constant of
type 'struct dc_dsc_config *' [-Wnon-literal-null-conversion]
update->dsc_config = false;
^~~~~
2 warnings generated.
Fixes: f6fe4053b91f ("drm/amd/display: Use a temporary copy of the current state when updating DSC config")
Link: https://github.com/ClangBuiltLinux/linux/issues/777
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rahul Kumar <rahul.kumar1@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 584127a5ec18..09184adfccc8 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1959,13 +1959,13 @@ static void copy_stream_update_to_stream(struct dc *dc,
if (!dc->res_pool->funcs->validate_bandwidth(dc, dsc_validate_context, true)) {
stream->timing.dsc_cfg = old_dsc_cfg;
stream->timing.flags.DSC = old_dsc_enabled;
- update->dsc_config = false;
+ update->dsc_config = NULL;
}
dc_release_state(dsc_validate_context);
} else {
DC_ERROR("Failed to allocate new validate context for DSC change\n");
- update->dsc_config = false;
+ update->dsc_config = NULL;
}
}
}
--
2.17.1
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