linux-stable/sound/sh
Takashi Iwai 9b5f8ee43e ALSA: sh: Use standard helper for buffer accesses
The SH DAC audio driver uses the kmalloc'ed buffer as the main PCM
buffer, and the data is transferred via hrtimer callbacks manually
from there to the hardware.  Meanwhile, some of its code are written
as if the buffer is on iomem and use the special helpers for the iomem
(e.g. copy_from_iter_toio() or memset_io()).  Those are rather useless
and the standard helpers should be used.

Similarly, the PCM mmap callback is set to a special one with
snd_pcm_lib_mmap_iomem, but this is also nonsense, because SH
architecture doesn't support this function, hence it leads just to
NULL -- the fallback to the standard helper.

This patch replaces those special setups with the standard ones.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202411281337.I4M07b7i-lkp@intel.com/
Link: https://patch.msgid.link/20241128104939.13755-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-11-29 14:59:58 +01:00
..
aica.c sound: Switch back to struct platform_driver::remove() 2024-10-30 14:47:59 +01:00
aica.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 273 2019-06-05 17:30:30 +02:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile ALSA: misc: Use *-y instead of *-objs in Makefile 2024-05-08 18:18:13 +02:00
sh_dac_audio.c ALSA: sh: Use standard helper for buffer accesses 2024-11-29 14:59:58 +01:00