Re: [PATCH v11 07/10] ASoC: qcom: Add support for codec dma driver

[kernel test robot]

Hi Srinivasa,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on broonie-sound/for-next]
[also build test WARNING on v5.17-rc3 next-20220211]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Srinivasa-Rao-Mandadapu/Add-support-for-audio-on-SC7280-based-targets/20220212-192806
base:   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
config: nios2-randconfig-s031-20220213 (https://download.01.org/0day-ci/archive/20220213/202202130736.eUu0rQGL-lkp@xxxxxxxxx/config)
compiler: nios2-linux-gcc (GCC) 11.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-dirty
        # https://github.com/0day-ci/linux/commit/81d86e5446d7b811a902e4834e65730b0fb393f5
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Srinivasa-Rao-Mandadapu/Add-support-for-audio-on-SC7280-based-targets/20220212-192806
        git checkout 81d86e5446d7b811a902e4834e65730b0fb393f5
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=nios2 SHELL=/bin/bash sound/soc/qcom/

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


sparse warnings: (new ones prefixed by >>)
>> sound/soc/qcom/lpass-platform.c:1223:52: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void volatile [noderef] __iomem *dst @@     got void * @@
   sound/soc/qcom/lpass-platform.c:1223:52: sparse:     expected void volatile [noderef] __iomem *dst
   sound/soc/qcom/lpass-platform.c:1223:52: sparse:     got void *
>> sound/soc/qcom/lpass-platform.c:1228:56: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const volatile [noderef] __iomem *src @@     got unsigned char *dma_buf @@
   sound/soc/qcom/lpass-platform.c:1228:56: sparse:     expected void const volatile [noderef] __iomem *src
   sound/soc/qcom/lpass-platform.c:1228:56: sparse:     got unsigned char *dma_buf

vim +1223 sound/soc/qcom/lpass-platform.c

  1209	
  1210	static int lpass_platform_copy(struct snd_soc_component *component,
  1211				       struct snd_pcm_substream *substream, int channel,
  1212				       unsigned long pos, void __user *buf, unsigned long bytes)
  1213	{
  1214		struct snd_pcm_runtime *rt = substream->runtime;
  1215		unsigned int dai_id = component->id;
  1216		int ret = 0;
  1217	
  1218		unsigned char *dma_buf = rt->dma_area + pos +
  1219					channel * (rt->dma_bytes / rt->channels);
  1220	
  1221		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
  1222			if (is_cdc_dma_port(dai_id))
> 1223				ret = copy_from_user_toio((void __force *)dma_buf, buf, bytes);
  1224			else
  1225				ret = copy_from_user((void __force *)dma_buf, buf, bytes);
  1226		} else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
  1227			if (is_cdc_dma_port(dai_id))
> 1228				ret = copy_to_user_fromio(buf, dma_buf, bytes);
  1229			else
  1230				ret = copy_to_user(buf, dma_buf, bytes);
  1231		}
  1232	
  1233		return ret;
  1234	}
  1235	

---
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