From 04b3c79533ecd702adfff92d6fe8cd09a3a48f5d Mon Sep 17 00:00:00 2001
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Date: Thu, 2 Jul 2020 14:35:58 -0500
Subject: [PATCH] ALSA: xen: remove 'set but not used' warning
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Git-commit: 04b3c79533ecd702adfff92d6fe8cd09a3a48f5d
Patch-mainline: v5.9-rc1
References: jsc#SLE-16518

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 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/xen/xen_snd_front.c b/sound/xen/xen_snd_front.c
index a9e5c2cd7698..e21d0bfafeae 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);
-- 
2.16.4