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From: Randy Dunlap <rdunlap@infradead.org>
To: linux-kernel@vger.kernel.org
Cc: "Randy Dunlap" <rdunlap@infradead.org>,
	"Wyatt Wood" <wyatt.wood@amd.com>,
	"Alex Deucher" <alexander.deucher@amd.com>,
	"Christian König" <christian.koenig@amd.com>,
	"Pan, Xinhui" <Xinhui.Pan@amd.com>,
	"Harry Wentland" <harry.wentland@amd.com>,
	"Leo Li" <sunpeng.li@amd.com>,
	amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
	"David Airlie" <airlied@linux.ie>,
	"Daniel Vetter" <daniel@ffwll.ch>
Subject: [PATCH] drm/amd/display: use do-while-0 for DC_TRACE_LEVEL_MESSAGE()
Date: Sun,  8 Aug 2021 19:52:08 -0700	[thread overview]
Message-ID: <20210809025208.10182-1-rdunlap@infradead.org> (raw)

Building with W=1 complains about an empty 'else' statement, so use the
usual do-nothing-while-0 loop to quieten this warning.

../drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dmub_psr.c:113:53: warning: suggest braces around empty body in an 'else' statement [-Wempty-body]
  113 |                                 *state, retry_count);

Fixes: b30eda8d416c ("drm/amd/display: Add ETW log to dmub_psr_get_state")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Wyatt Wood <wyatt.wood@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: "Pan, Xinhui" <Xinhui.Pan@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Leo Li <sunpeng.li@amd.com>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
---
 drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-next-20210806.orig/drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c
+++ linux-next-20210806/drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c
@@ -29,7 +29,7 @@
 #include "dmub/dmub_srv.h"
 #include "core_types.h"
 
-#define DC_TRACE_LEVEL_MESSAGE(...) /* do nothing */
+#define DC_TRACE_LEVEL_MESSAGE(...)	do {} while (0) /* do nothing */
 
 #define MAX_PIPES 6
 

             reply	other threads:[~2021-08-09  2:52 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-09  2:52 Randy Dunlap [this message]
2021-08-09 18:27 ` Alex Deucher

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