When CONFIG_KASAN is set, we see overly large stack frames from inlining functions with local variables:
drivers/net/wireless/realtek/rtl818x/rtl8180/rtl8225se.c: In function 'rtl8225se_rf_init': drivers/net/wireless/realtek/rtl818x/rtl8180/rtl8225se.c:431:1: warning: the frame size of 4384 bytes is larger than 3072 bytes [-Wframe-larger-than=]
This marks them noinline_for_kasan.
Signed-off-by: Arnd Bergmann arnd@arndb.de --- drivers/net/wireless/realtek/rtl818x/rtl8180/rtl8225se.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/realtek/rtl818x/rtl8180/rtl8225se.c b/drivers/net/wireless/realtek/rtl818x/rtl8180/rtl8225se.c index fde89866fa8d..1efa098a2e32 100644 --- a/drivers/net/wireless/realtek/rtl818x/rtl8180/rtl8225se.c +++ b/drivers/net/wireless/realtek/rtl818x/rtl8180/rtl8225se.c @@ -174,14 +174,14 @@ static void rtl8187se_three_wire_io(struct ieee80211_hw *dev, u8 *data, } while (0); }
-static u32 rtl8187se_rf_readreg(struct ieee80211_hw *dev, u8 addr) +static noinline_for_kasan u32 rtl8187se_rf_readreg(struct ieee80211_hw *dev, u8 addr) { u32 dataread = addr & 0x0F; rtl8187se_three_wire_io(dev, (u8 *)&dataread, 16, 0); return dataread; }
-static void rtl8187se_rf_writereg(struct ieee80211_hw *dev, u8 addr, u32 data) +static noinline_for_kasan void rtl8187se_rf_writereg(struct ieee80211_hw *dev, u8 addr, u32 data) { u32 outdata = (data << 4) | (u32)(addr & 0x0F); rtl8187se_three_wire_io(dev, (u8 *)&outdata, 16, 1);