lkml.org 
[lkml]   [2019]   [Feb]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 3/3] media: go7007: avoid clang frame overflow warning with KASAN
Date
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>
---
drivers/media/usb/go7007/go7007-fw.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/usb/go7007/go7007-fw.c b/drivers/media/usb/go7007/go7007-fw.c
index 24f5b615dc7a..c7201e93c331 100644
--- a/drivers/media/usb/go7007/go7007-fw.c
+++ b/drivers/media/usb/go7007/go7007-fw.c
@@ -1499,7 +1499,7 @@ 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,
+static noinline_for_stack int do_special(struct go7007 *go, u16 type, __le16 *code, int space,
int *framelen)
{
switch (type) {
--
2.20.0
\
 
 \ /
  Last update: 2019-02-19 18:03    [W:0.076 / U:27.868 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site