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media: go7007: avoid clang frame overflow warning with KASAN 

clang-8 warns about one function here when KASAN is enabled, even
without the 'asan-stack' option:

drivers/media/usb/go7007/go7007-fw.c:1551:5: warning: stack frame size of 2656 bytes in function

I have reported this issue in the llvm bugzilla, but to make
it work with the clang-8 release, a small annotation is still
needed.

Link: https://bugs.llvm.org/show_bug.cgi?id=38809

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil-cisco@xs4all.nl: fix checkpatch warning]
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
hifive-unleashed-5.2
Arnd Bergmann 2019-02-19 12:01:58 -05:00 committed by Mauro Carvalho Chehab
parent 03aa4f191a
commit ed713a4a13
1 changed files with 2 additions and 2 deletions
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4
drivers/media/usb/go7007/go7007-fw.c
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@ -1499,8 +1499,8 @@ static int modet_to_package(struct go7007 *go, __le16 *code, int space)
return cnt;
}
static int do_special(struct go7007 *go, u16 type, __le16 *code, int space,
int *framelen)
static noinline_for_stack int do_special(struct go7007 *go, u16 type,
__le16 *code, int space, int *framelen)
{
switch (type) {
case SPECIAL_FRM_HEAD: