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

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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>
This commit is contained in:
Pierre-Louis Bossart 2020-07-02 14:35:58 -05:00 committed by Takashi Iwai
parent 6add6b02e5
commit 04b3c79533
1 changed files with 1 additions and 1 deletions
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sound/xen/xen_snd_front.c
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@ -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);