linux-kernel - [PATCH] net/core/sock.c: quiet sparse noise

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Message-Id: <201001141721.45305.hartleys@visionengravers.com>
Date:	Thu, 14 Jan 2010 17:21:45 -0700
From:	H Hartley Sweeten <hartleys@...ionengravers.com>
To:	Linux Kernel <linux-kernel@...r.kernel.org>, netdev@...r.kernel.org
Cc:	davem@...emloft.net
Subject: [PATCH] net/core/sock.c: quiet sparse noise

net/core/sock.c: quiet sparse noise

In sock_getsockopt the symbol 'lv' is declared as an
unsigned int type, probably due to sizeof returning a
size_t which is really an unsigned int.

This produces a sparse warning for SO_PEERNAME due to
the sock->ops->getname() call:

warning: incorrect type in argument 3 (different signedness)
   expected int *sockaddr_len
   got unsigned int *<noident>

Quiet the warning my changing the type of 'lv' to an int.

Signed-off-by: H Hartley Sweeten <hsweeten@...ionengravers.com>
Cc: David S. Miller <davem@...emloft.net>

---

diff --git a/net/core/sock.c b/net/core/sock.c
index e1f6f22..10b1d32 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -741,7 +741,7 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 		struct timeval tm;
 	} v;
 
-	unsigned int lv = sizeof(int);
+	int lv = sizeof(int);
 	int len;
 
 	if (get_user(len, optlen))
--
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