[PATCH] ALSA: memalloc: Add fallback SG-buffer free if fallback is used for noncontig

[kernel test robot]

Hi Peter,

I love your patch! Yet something to improve:

[auto build test ERROR on tiwai-sound/for-next]
[also build test ERROR on v5.18-rc4 next-20220422]
[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/intel-lab-lkp/linux/commits/Peter-Ujfalusi/ALSA-memalloc-Add-fallback-SG-buffer-free-if-fallback-is-used-for-noncontig/20220425-203012
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git for-next
config: arm-randconfig-r033-20220425 (https://download.01.org/0day-ci/archive/20220426/202204260301.TAt89QGn-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/bf91cb1cd103c5f1e78fa154c30f1436be2723ac
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Peter-Ujfalusi/ALSA-memalloc-Add-fallback-SG-buffer-free-if-fallback-is-used-for-noncontig/20220425-203012
        git checkout bf91cb1cd103c5f1e78fa154c30f1436be2723ac
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash sound/core/

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

All errors (new ones prefixed by >>):

   sound/core/memalloc.c: In function 'snd_dma_noncontig_free':
>> sound/core/memalloc.c:540:31: error: 'SNDRV_DMA_TYPE_DEV_WC_SG_FALLBACK' undeclared (first use in this function); did you mean 'SNDRV_DMA_TYPE_DEV_WC_SG'?
     540 |         if (dmab->dev.type == SNDRV_DMA_TYPE_DEV_WC_SG_FALLBACK ||
         |                               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         |                               SNDRV_DMA_TYPE_DEV_WC_SG
   sound/core/memalloc.c:540:31: note: each undeclared identifier is reported only once for each function it appears in
>> sound/core/memalloc.c:541:31: error: 'SNDRV_DMA_TYPE_DEV_SG_FALLBACK' undeclared (first use in this function); did you mean 'SNDRV_DMA_TYPE_DEV_SG'?
     541 |             dmab->dev.type == SNDRV_DMA_TYPE_DEV_SG_FALLBACK) {
         |                               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         |                               SNDRV_DMA_TYPE_DEV_SG
>> sound/core/memalloc.c:543:17: error: implicit declaration of function 'snd_dma_sg_fallback_free'; did you mean 'snd_dma_vmalloc_free'? [-Werror=implicit-function-declaration]
     543 |                 snd_dma_sg_fallback_free(dmab);
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~
         |                 snd_dma_vmalloc_free
   cc1: some warnings being treated as errors


vim +540 sound/core/memalloc.c

   537	
   538	static void snd_dma_noncontig_free(struct snd_dma_buffer *dmab)
   539	{
 > 540		if (dmab->dev.type == SNDRV_DMA_TYPE_DEV_WC_SG_FALLBACK ||
 > 541		    dmab->dev.type == SNDRV_DMA_TYPE_DEV_SG_FALLBACK) {
   542			/* The allocation is done with a fallback, use the matching free */
 > 543			snd_dma_sg_fallback_free(dmab);
   544			return;
   545		}
   546	
   547		dma_vunmap_noncontiguous(dmab->dev.dev, dmab->area);
   548		dma_free_noncontiguous(dmab->dev.dev, dmab->bytes, dmab->private_data,
   549				       dmab->dev.dir);
   550	}
   551	

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