commit 04b3c79533ecd702adfff92d6fe8cd09a3a48f5d
author Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Thu Jul 02 14:35:58 2020 -0500
committer Takashi Iwai <tiwai@suse.de> Tue Jul 07 12:11:39 2020 +0200
tree 1c9c0857317711b5846ed48955e28c7105b1b64a
parent 6add6b02e53f37638a55d64bbdd4cbf7abb2b1dd

ALSA: xen: remove 'set but not used' warning

Fix W=1 warning. Mark the 'req' variable as __always_unused.

sound/xen/xen_snd_front.c: In function ‘xen_snd_front_stream_close’:
sound/xen/xen_snd_front.c:117:21: warning: variable ‘req’ set but not
used [-Wunused-but-set-variable]
  117 |  struct xensnd_req *req;
      |                     ^~~

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200702193604.169059-18-pierre-louis.bossart@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/xen/xen_snd_front.c

diff --git a/sound/xen/xen_snd_front.c b/sound/xen/xen_snd_front.c
index a9e5c2c..e21d0bf 100644
--- a/sound/xen/xen_snd_front.c
+++ b/sound/xen/xen_snd_front.c
@@ -114,7 +114,7 @@ int xen_snd_front_stream_prepare(struct xen_snd_front_evtchnl *evtchnl,
 
 int xen_snd_front_stream_close(struct xen_snd_front_evtchnl *evtchnl)
 {
-	struct xensnd_req *req;
+	__always_unused struct xensnd_req *req;
 	int ret;
 
 	mutex_lock(&evtchnl->u.req.req_io_lock);