mirror-linux/drivers/media/platform/mediatek/vcodec
Arnd Bergmann 8b55f88189 media: mediatek: vcodec: mark vdec_vp9_slice_map_counts_eob_coef noinline
With KASAN enabled, clang fails to optimize the inline version of
vdec_vp9_slice_map_counts_eob_coef() properly, leading to kilobytes
of temporary values spilled to the stack:

drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_vp9_req_lat_if.c:1526:12: error: stack frame size (2160) exceeds limit (2048) in 'vdec_vp9_slice_update_prob' [-Werror,-Wframe-larger-than]

This seems to affect all versions of clang including the latest (clang-20),
but the degree of stack overhead is different per release.

Marking the function as noinline_for_stack is harmless here and avoids
the problem completely.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2024-12-13 17:51:35 +01:00
..
common media: mediatek: vcodec: Alloc DMA memory with DMA_ATTR_ALLOC_SINGLE_PAGES 2024-06-10 10:24:11 +02:00
decoder media: mediatek: vcodec: mark vdec_vp9_slice_map_counts_eob_coef noinline 2024-12-13 17:51:35 +01:00
encoder media: platform: drop vb2_ops_wait_prepare/finish 2024-10-28 09:20:07 +01:00
Kconfig media: drop CONFIG_MEDIA_CONTROLLER_REQUEST_API 2023-11-23 13:03:45 +01:00
Makefile