Commit 25d639cb authored Jul 21, 2015 by Se Wang (Patrick) Oh

kernel: lib: allow larger stack frame size for KASan



Some functions consume more than allowed stack frame
size with KASan enabled and GCC warns it as an error.
To avoid compilation warning, allow larger stack frame
size when KASan is enabled instead of changing each file.

Below is one of the warning messages for reference.
kernel/net/wireless/nl80211.c: In function 'nl80211_send_wiphy':
kernel/net/wireless/nl80211.c:1705:1: warning: the frame size
of 5488 bytes is larger than 2048 bytes [-Wframe-larger-than=]

Change-Id: I953018f459bf048366f0ba5ff7c980edcd9bbe07
Signed-off-by: Se Wang (Patrick) Oh <sewango@codeaurora.org>

parent da9777c8

lib/Kconfig.debug

+1 −0

Original line number	Diff line number	Diff line
		@@ -195,6 +195,7 @@ config ENABLE_MUST_CHECK
		config FRAME_WARN
		int "Warn for stack frames larger than (needs gcc 4.4)"
		range 0 8192
		default 5600 if KASAN
		default 1024 if !64BIT
		default 2048 if 64BIT
		help