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

[kernel test robot]

Hi Peter,

I love your patch! Perhaps something to improve:

[auto build test WARNING on tiwai-sound/for-next]
[also build test WARNING 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: i386-randconfig-a001 (https://download.01.org/0day-ci/archive/20220426/202204261147.hFS8RozR-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.2.0-20) 11.2.0
reproduce (this is a W=1 build):
        # 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
        make W=1 O=build_dir ARCH=i386 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 warnings (new ones prefixed by >>):

   sound/core/memalloc.c: In function 'snd_dma_noncontig_free':
   sound/core/memalloc.c:543:17: error: implicit declaration of function 'snd_dma_sg_fallback_free'; did you mean 'snd_dma_sg_fallback_alloc'? [-Werror=implicit-function-declaration]
     543 |                 snd_dma_sg_fallback_free(dmab);
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~
         |                 snd_dma_sg_fallback_alloc
   sound/core/memalloc.c: At top level:
>> sound/core/memalloc.c:755:13: warning: conflicting types for 'snd_dma_sg_fallback_free'; have 'void(struct snd_dma_buffer *)'
     755 | static void snd_dma_sg_fallback_free(struct snd_dma_buffer *dmab)
         |             ^~~~~~~~~~~~~~~~~~~~~~~~
   sound/core/memalloc.c:755:13: error: static declaration of 'snd_dma_sg_fallback_free' follows non-static declaration
   sound/core/memalloc.c:543:17: note: previous implicit declaration of 'snd_dma_sg_fallback_free' with type 'void(struct snd_dma_buffer *)'
     543 |                 snd_dma_sg_fallback_free(dmab);
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +755 sound/core/memalloc.c

925ca893b4a651 Takashi Iwai 2022-04-13  754  
925ca893b4a651 Takashi Iwai 2022-04-13 @755  static void snd_dma_sg_fallback_free(struct snd_dma_buffer *dmab)
925ca893b4a651 Takashi Iwai 2022-04-13  756  {
925ca893b4a651 Takashi Iwai 2022-04-13  757  	vunmap(dmab->area);
925ca893b4a651 Takashi Iwai 2022-04-13  758  	__snd_dma_sg_fallback_free(dmab, dmab->private_data);
925ca893b4a651 Takashi Iwai 2022-04-13  759  }
925ca893b4a651 Takashi Iwai 2022-04-13  760  

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