media: st-delta: avoid excessive stack usage

Browse source

[ Upstream commit 5954ad7d1a ]

Building with a reduced stack warning limit shows that delta_mjpeg_decode()
copies a giant structure to the stack each time but only uses three of
its members:

drivers/media/platform/st/sti/delta/delta-mjpeg-dec.c: In function 'delta_mjpeg_decode':
drivers/media/platform/st/sti/delta/delta-mjpeg-dec.c:427:1: error: the frame size of 1296 bytes is larger than 1280 bytes [-Werror=frame-larger-than=]

Open-code the passing of the structure members that are actually used here.

Fixes: 433ff5b4a2 ("[media] st-delta: add mjpeg support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Arnd Bergmann 2025-06-10 11:31:56 +02:00 • committed by Greg Kroah-Hartman

parent ae60a599fd

commit 2047ffc5c5

1 changed files with 11 additions and 9 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

20

drivers/media/platform/st/sti/delta/delta-mjpeg-dec.c

View file