[PATCH 6.4 054/165] net: add missing READ_ONCE(sk->sk_rcvlowat) annotation

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From: Eric Dumazet <edumazet@xxxxxxxxxx>

[ Upstream commit e6d12bdb435d23ff6c1890c852d85408a2f496ee ]

In a prior commit, I forgot to change sk_getsockopt()
when reading sk->sk_rcvlowat locklessly.

Fixes: eac66402d1c3 ("net: annotate sk->sk_rcvlowat lockless reads")
Signed-off-by: Eric Dumazet <edumazet@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 net/core/sock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/sock.c b/net/core/sock.c
index b87f498072251..aed5d09a41c4b 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1719,7 +1719,7 @@ int sk_getsockopt(struct sock *sk, int level, int optname,
 		break;
 
 	case SO_RCVLOWAT:
-		v.val = sk->sk_rcvlowat;
+		v.val = READ_ONCE(sk->sk_rcvlowat);
 		break;
 
 	case SO_SNDLOWAT:
-- 
2.40.1






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