From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Thu, 15 Mar 2007 00:04:34 +0000 (-0300)
Subject: [SK_BUFF]: More skb_put related conversions to skb_reset_transport_header
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=eeeb03745bf9ea352df2373b9cb5fa14e60a2de0;p=openwrt%2Fstaging%2Fblogic.git

[SK_BUFF]: More skb_put related conversions to skb_reset_transport_header

This is similar to the skb_reset_network_header(), i.e. at the point we reset
the transport header pointer/offset skb->tail is equal to skb->data.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index c3cd2ba123e5..bf994c85e45a 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -1274,7 +1274,6 @@ static int irda_sendmsg(struct kiocb *iocb, struct socket *sock,
 	struct sock *sk = sock->sk;
 	struct irda_sock *self;
 	struct sk_buff *skb;
-	unsigned char *asmptr;
 	int err;
 
 	IRDA_DEBUG(4, "%s(), len=%zd\n", __FUNCTION__, len);
@@ -1317,9 +1316,9 @@ static int irda_sendmsg(struct kiocb *iocb, struct socket *sock,
 		return -ENOBUFS;
 
 	skb_reserve(skb, self->max_header_size + 16);
-
-	asmptr = skb->h.raw = skb_put(skb, len);
-	err = memcpy_fromiovec(asmptr, msg->msg_iov, len);
+	skb_reset_transport_header(skb);
+	skb_put(skb, len);
+	err = memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len);
 	if (err) {
 		kfree_skb(skb);
 		return err;
@@ -1530,7 +1529,6 @@ static int irda_sendmsg_dgram(struct kiocb *iocb, struct socket *sock,
 	struct sock *sk = sock->sk;
 	struct irda_sock *self;
 	struct sk_buff *skb;
-	unsigned char *asmptr;
 	int err;
 
 	IRDA_DEBUG(4, "%s(), len=%zd\n", __FUNCTION__, len);
@@ -1566,10 +1564,11 @@ static int irda_sendmsg_dgram(struct kiocb *iocb, struct socket *sock,
 		return -ENOBUFS;
 
 	skb_reserve(skb, self->max_header_size);
+	skb_reset_transport_header(skb);
 
 	IRDA_DEBUG(4, "%s(), appending user data\n", __FUNCTION__);
-	asmptr = skb->h.raw = skb_put(skb, len);
-	err = memcpy_fromiovec(asmptr, msg->msg_iov, len);
+	skb_put(skb, len);
+	err = memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len);
 	if (err) {
 		kfree_skb(skb);
 		return err;
@@ -1602,7 +1601,6 @@ static int irda_sendmsg_ultra(struct kiocb *iocb, struct socket *sock,
 	__u8 pid = 0;
 	int bound = 0;
 	struct sk_buff *skb;
-	unsigned char *asmptr;
 	int err;
 
 	IRDA_DEBUG(4, "%s(), len=%zd\n", __FUNCTION__, len);
@@ -1662,10 +1660,11 @@ static int irda_sendmsg_ultra(struct kiocb *iocb, struct socket *sock,
 		return -ENOBUFS;
 
 	skb_reserve(skb, self->max_header_size);
+	skb_reset_transport_header(skb);
 
 	IRDA_DEBUG(4, "%s(), appending user data\n", __FUNCTION__);
-	asmptr = skb->h.raw = skb_put(skb, len);
-	err = memcpy_fromiovec(asmptr, msg->msg_iov, len);
+	skb_put(skb, len);
+	err = memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len);
 	if (err) {
 		kfree_skb(skb);
 		return err;
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 8d0f30a015df..053fa26ff90a 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -1074,6 +1074,7 @@ static int nr_sendmsg(struct kiocb *iocb, struct socket *sock,
 		goto out;
 
 	skb_reserve(skb, size - len);
+	skb_reset_transport_header(skb);
 
 	/*
 	 *	Push down the NET/ROM header
@@ -1094,14 +1095,12 @@ static int nr_sendmsg(struct kiocb *iocb, struct socket *sock,
 	/*
 	 *	Put the data on the end
 	 */
+	skb_put(skb, len);
 
-	skb->h.raw = skb_put(skb, len);
-
-	asmptr = skb->h.raw;
 	SOCK_DEBUG(sk, "NET/ROM: Appending user data\n");
 
 	/* User data follows immediately after the NET/ROM transport header */
-	if (memcpy_fromiovec(asmptr, msg->msg_iov, len)) {
+	if (memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len)) {
 		kfree_skb(skb);
 		err = -EFAULT;
 		goto out;
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index 6d8684a11ac6..1511697b22ba 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -1105,9 +1105,10 @@ static int rose_sendmsg(struct kiocb *iocb, struct socket *sock,
 	 */
 	SOCK_DEBUG(sk, "ROSE: Appending user data\n");
 
-	asmptr = skb->h.raw = skb_put(skb, len);
+	skb_reset_transport_header(skb);
+	skb_put(skb, len);
 
-	err = memcpy_fromiovec(asmptr, msg->msg_iov, len);
+	err = memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len);
 	if (err) {
 		kfree_skb(skb);
 		return err;
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index fc713059ccdd..adcda8ebee9c 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -1058,9 +1058,10 @@ static int x25_sendmsg(struct kiocb *iocb, struct socket *sock,
 	 */
 	SOCK_DEBUG(sk, "x25_sendmsg: Copying user data\n");
 
-	asmptr = skb->h.raw = skb_put(skb, len);
+	skb_reset_transport_header(skb);
+	skb_put(skb, len);
 
-	rc = memcpy_fromiovec(asmptr, msg->msg_iov, len);
+	rc = memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len);
 	if (rc)
 		goto out_kfree_skb;