Subject: [RFC PATCH 4/9] irda: reserve irda_skb on sock_alloc_send_skb() skbs

From: Samuel Ortiz <[email-masked]>
Date: Mon, 15 Dec 2008 02:57:33 +0100

Those skbs are on the TX path, and need to have the irda_skb_cb space
allocated as well.

Signed-off-by: Samuel Ortiz <[email-masked]>
---
 net/irda/af_irda.c |   17 +++++++++++------
 1 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index 61def98..8b0ac27 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -59,6 +59,7 @@
 #include <net/tcp_states.h>
 
 #include <net/irda/af_irda.h>
+#include <net/irda/irda_device.h>
 
 static int irda_create(struct net *net, struct socket *sock, int protocol);
 
@@ -1288,12 +1289,14 @@ static int irda_sendmsg(struct kiocb *iocb, struct socket *sock,
 		len = self->max_data_size;
 	}
 
-	skb = sock_alloc_send_skb(sk, len + self->max_header_size + 16,
+	skb = sock_alloc_send_skb(sk, len + self->max_header_size + 16
+				  + sizeof(struct irda_skb_cb),
 				  msg->msg_flags & MSG_DONTWAIT, &err);
 	if (!skb)
 		goto out_err;
 
-	skb_reserve(skb, self->max_header_size + 16);
+	skb_reserve(skb, self->max_header_size + 16
+		    + sizeof(struct irda_skb_cb));
 	skb_reset_transport_header(skb);
 	skb_put(skb, len);
 	err = memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len);
@@ -1534,12 +1537,13 @@ static int irda_sendmsg_dgram(struct kiocb *iocb, struct socket *sock,
 		len = self->max_data_size;
 	}
 
-	skb = sock_alloc_send_skb(sk, len + self->max_header_size,
+	skb = sock_alloc_send_skb(sk, len + self->max_header_size
+				  + sizeof(struct irda_skb_cb),
 				  msg->msg_flags & MSG_DONTWAIT, &err);
 	if (!skb)
 		return -ENOBUFS;
 
-	skb_reserve(skb, self->max_header_size);
+	skb_reserve(skb, self->max_header_size + sizeof(struct irda_skb_cb));
 	skb_reset_transport_header(skb);
 
 	IRDA_DEBUG(4, "%s(), appending user data\n", __func__);
@@ -1629,12 +1633,13 @@ static int irda_sendmsg_ultra(struct kiocb *iocb, struct socket *sock,
 		len = self->max_data_size;
 	}
 
-	skb = sock_alloc_send_skb(sk, len + self->max_header_size,
+	skb = sock_alloc_send_skb(sk, len + self->max_header_size
+				  + sizeof(struct irda_skb_cb),
 				  msg->msg_flags & MSG_DONTWAIT, &err);
 	if (!skb)
 		return -ENOBUFS;
 
-	skb_reserve(skb, self->max_header_size);
+	skb_reserve(skb, self->max_header_size + sizeof(struct irda_skb_cb));
 	skb_reset_transport_header(skb);
 
 	IRDA_DEBUG(4, "%s(), appending user data\n", __func__);
-- 
1.6.0.4.766.g6fc4a.dirty

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