Am 01.12.20 um 19:42 schrieb Alex Deucher:
On Thu, Nov 26, 2020 at 8:44 AM Lee Jones <lee.jo...@linaro.org> wrote:
Fixes the following W=1 kernel build warning(s):
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_helpers.c: In
function ‘dm_dtn_log_append_v’:
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_helpers.c:345:2:
warning: function ‘dm_dtn_log_append_v’ might be a candidate for ‘gnu_printf’
format attribute [-Wsuggest-attribute=format]
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_helpers.c:375:3:
warning: function ‘dm_dtn_log_append_v’ might be a candidate for ‘gnu_printf’
format attribute [-Wsuggest-attribute=format]
Cc: Harry Wentland <harry.wentl...@amd.com>
Cc: Leo Li <sunpeng...@amd.com>
Cc: Alex Deucher <alexander.deuc...@amd.com>
Cc: "Christian König" <christian.koe...@amd.com>
Cc: David Airlie <airl...@linux.ie>
Cc: Daniel Vetter <dan...@ffwll.ch>
Cc: amd-...@lists.freedesktop.org
Cc: dri-de...@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jo...@linaro.org>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
index b7d7ec3ba00d7..24a81642baa26 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
@@ -318,6 +318,7 @@ void dm_dtn_log_begin(struct dc_context *ctx,
dm_dtn_log_append_v(ctx, log_ctx, "%s", msg);
}
+__printf(3, 4)
Can you expand a bit on what this does?
Been a while since I looked into something like this, but IIRC this
means that parameter 3 (msg) is considered a printf format string and
the types of parameter 4 and following checked against that.
Looks correct to me.
Christian.
Alex
void dm_dtn_log_append_v(struct dc_context *ctx,
struct dc_log_buffer_ctx *log_ctx,
const char *msg, ...)
--
2.25.1
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