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Commit 90b5be68 authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Greg Kroah-Hartman
Browse files

media: go7007: avoid clang frame overflow warning with KASAN 

[ Upstream commit ed713a4a1367aca5c0f2f329579465db00c17995 ]

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: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil-cisco@xs4all.nl: fix checkpatch warning]
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 326326f0

drivers/media/usb/go7007/go7007-fw.c

+2 −2
Original line number Diff line number Diff line
@@ -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: