From 4ffa87012efd7b664762b579213d4663560ef4a3 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Fri, 9 Apr 2010 23:47:31 +0000
Subject: [PATCH] can: avoids a false warning
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At this point optlen == sizeof(sfilter) but some compilers are dumb.

Reported-by: Németh Márton <nm127@freemail.h
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Oliver Hartkopp <oliver@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/can/raw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/can/raw.c b/net/can/raw.c
index 3a7dffb6519c..da99cf153b33 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -445,7 +445,7 @@ static int raw_setsockopt(struct socket *sock, int level, int optname,
 				return -EFAULT;
 			}
 		} else if (count == 1) {
-			if (copy_from_user(&sfilter, optval, optlen))
+			if (copy_from_user(&sfilter, optval, sizeof(sfilter)))
 				return -EFAULT;
 		}