[freescale-fslc:5.4-2.3.x-imx 13045/16543] sound/soc/fsl/fsl_esai_client.c:81:5: warning: no previous prototype for 'fsl_esai_client_pcm_trigger'

[kernel test robot <lkp@intel.com>]

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tree:   https://github.com/Freescale/linux-fslc 5.4-2.3.x-imx
head:   a8a2b9ee4bec0b29d031324160b7f11af42a563a
commit: d5986dc1d41899a11bd636fe337ef7d503183683 [13045/16543] MLK-24612-1: ASoC: fsl_esai: Add esai client driver
config: i386-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/Freescale/linux-fslc/commit/d5986dc1d41899a11bd636fe337ef7d503183683
        git remote add freescale-fslc https://github.com/Freescale/linux-fslc
        git fetch --no-tags freescale-fslc 5.4-2.3.x-imx
        git checkout d5986dc1d41899a11bd636fe337ef7d503183683
        # save the attached .config to linux build tree
        make W=1 ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> sound/soc/fsl/fsl_esai_client.c:81:5: warning: no previous prototype for 'fsl_esai_client_pcm_trigger' [-Wmissing-prototypes]
      81 | int fsl_esai_client_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for GPIO_MXC
   Depends on GPIOLIB && HAS_IOMEM && ARCH_MXC
   Selected by
   - GPIO_MXC_PAD_WAKEUP && GPIOLIB && HAS_IOMEM && IMX_SCU


vim +/fsl_esai_client_pcm_trigger +81 sound/soc/fsl/fsl_esai_client.c

    80	
  > 81	int fsl_esai_client_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
    82	{
    83		struct snd_soc_pcm_runtime *rtd = substream->private_data;
    84		struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
    85		struct fsl_esai_client *client = snd_soc_dai_get_drvdata(cpu_dai);
    86		bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
    87	
    88		switch (cmd) {
    89		case SNDRV_PCM_TRIGGER_START:
    90		case SNDRV_PCM_TRIGGER_RESUME:
    91		case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
    92			/* These info are needed by esai mix*/
    93			client->dma[tx].buffer_bytes = snd_pcm_lib_buffer_bytes(substream);
    94			client->dma[tx].period_bytes = snd_pcm_lib_period_bytes(substream);
    95			client->dma[tx].buffer_offset = 0;
    96			client->dma[tx].active = true;
    97			break;
    98		case SNDRV_PCM_TRIGGER_SUSPEND:
    99		case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
   100		case SNDRV_PCM_TRIGGER_STOP:
   101			client->dma[tx].active = false;
   102			break;
   103		default:
   104			return -EINVAL;
   105		}
   106	
   107		return 0;
   108	}
   109	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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