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ALSA: pcm: Define dummy snd_pcm_suspend() for CONFIG_PM=n 

... so that the driver can avoid ifdef's for the dead PM callbacks.
The compiler should optimize them out in anyway.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2017-02-05 08:58:46 +01:00
parent b556290f9a
commit 1cf05ba2ca
1 changed files with 9 additions and 0 deletions
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9
include/sound/pcm.h
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@ -570,6 +570,15 @@ int snd_pcm_stop_xrun(struct snd_pcm_substream *substream);
#ifdef CONFIG_PM
int snd_pcm_suspend(struct snd_pcm_substream *substream);
int snd_pcm_suspend_all(struct snd_pcm *pcm);
#else
static inline int snd_pcm_suspend(struct snd_pcm_substream *substream)
{
return 0;
}
static inline int snd_pcm_suspend_all(struct snd_pcm *pcm)
{
return 0;
}
#endif
int snd_pcm_kernel_ioctl(struct snd_pcm_substream *substream, unsigned int cmd, void *arg);
int snd_pcm_open_substream(struct snd_pcm *pcm, int stream, struct file *file,