[Linux-kernel-mentees][PATCH v3] nl80211: Fix undefined behavior in bit shift
From: Jiunn Chang
Date: Thu Jun 27 2019 - 01:04:41 EST
Shifting signed 32-bit value by 31 bits is undefined. Changing most
significant bit to unsigned.
Signed-off-by: Jiunn Chang <c0d1n61at3@xxxxxxxxx>
---
Changes included in v3:
- remove change log from patch description
Changes included in v2:
- use subsystem specific subject lines
- CC required mailing lists
include/uapi/linux/nl80211.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 6f09d1500960..fa7ebbc6ff27 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -5314,7 +5314,7 @@ enum nl80211_feature_flags {
NL80211_FEATURE_TDLS_CHANNEL_SWITCH = 1 << 28,
NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR = 1 << 29,
NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR = 1 << 30,
- NL80211_FEATURE_ND_RANDOM_MAC_ADDR = 1 << 31,
+ NL80211_FEATURE_ND_RANDOM_MAC_ADDR = 1U << 31,
};
/**
--
2.22.0