| From d04ea2165e8f9951973819015afa3e91997dd8cc Mon Sep 17 00:00:00 2001 |
| From: Arnd Bergmann <arnd@arndb.de> |
| Date: Tue, 19 Feb 2019 12:01:58 -0500 |
| Subject: 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: 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> |
| Signed-off-by: Sasha Levin <sashal@kernel.org> |
| --- |
| drivers/media/usb/go7007/go7007-fw.c | 4 ++-- |
| 1 file changed, 2 insertions(+), 2 deletions(-) |
| |
| diff --git a/drivers/media/usb/go7007/go7007-fw.c b/drivers/media/usb/go7007/go7007-fw.c |
| index 24f5b615dc7af..dfa9f899d0c25 100644 |
| --- a/drivers/media/usb/go7007/go7007-fw.c |
| +++ b/drivers/media/usb/go7007/go7007-fw.c |
| @@ -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: |
| -- |
| 2.20.1 |
| |
