WSL2-Linux-Kernel/sound/soc/kirkwood
Kees Cook b3bcedc040
ASoC: kirkwood: Iterate over array indexes instead of using pointer math
Walking the dram->cs array was seen as accesses beyond the first array
item by the compiler. Instead, use the array index directly. This allows
for run-time bounds checking under CONFIG_UBSAN_BOUNDS as well. Seen
with GCC 13 with -fstrict-flex-arrays:

../sound/soc/kirkwood/kirkwood-dma.c: In function
'kirkwood_dma_conf_mbus_windows.constprop':
../sound/soc/kirkwood/kirkwood-dma.c:90:24: warning: array subscript 0 is outside array bounds of 'const struct mbus_dram_window[0]' [-Warray-bounds=]
   90 |                 if ((cs->base & 0xffff0000) < (dma & 0xffff0000)) {
      |                      ~~^~~~~~

Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: alsa-devel@alsa-project.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230127224128.never.410-kees@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-01-28 10:51:05 +00:00
..
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
armada-370-db.c ASoC: kirkwood: armada-370-db: mark OF related data as maybe unused 2020-11-26 13:07:04 +00:00
kirkwood-dma.c ASoC: kirkwood: Iterate over array indexes instead of using pointer math 2023-01-28 10:51:05 +00:00
kirkwood-i2s.c ASoC: kirkwood: enable Kirkwood driver for Armada 38x platforms 2022-10-17 12:48:28 +01:00
kirkwood.h ASoC: kirkwood: enable Kirkwood driver for Armada 38x platforms 2022-10-17 12:48:28 +01:00