X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=datapath%2Fchecksum.c;h=5146c6531ec5ffb29d20e91aa6101eb1768e45ef;hb=refs%2Fheads%2Fmanual;hp=3a131f4e2162c3368f902b5551cef2b2a91a7926;hpb=c3729ee42dc25a8240cee6c0041b7db3e4070414;p=openvswitch

diff --git a/datapath/checksum.c b/datapath/checksum.c
index 3a131f4e..5146c653 100644
--- a/datapath/checksum.c
+++ b/datapath/checksum.c
@@ -1,9 +1,19 @@
 /*
- * Copyright (c) 2010, 2011 Nicira Networks.
- * Distributed under the terms of the GNU GPL version 2.
+ * Copyright (c) 2007-2011 Nicira, Inc.
  *
- * Significant portions of this file may be copied from parts of the Linux
- * kernel, by Linus Torvalds and others.
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -149,8 +159,8 @@ int compute_ip_summed(struct sk_buff *skb, bool xmit)
 	/* In theory this could be either CHECKSUM_PARTIAL or CHECKSUM_COMPLETE.
 	 * However, on the receive side we should only get CHECKSUM_PARTIAL
 	 * packets from Xen, which uses some special fields to represent this
-	 * (see vswitch_skb_checksum_setup()).  Since we can only make one type work,
-	 * pick the one that actually happens in practice.
+	 * (see vswitch_skb_checksum_setup()).  Since we can only make one type
+	 * work, pick the one that actually happens in practice.
 	 *
 	 * On the transmit side (basically after skb_checksum_setup()
 	 * has been run or on internal dev transmit), packets with
@@ -178,13 +188,14 @@ int compute_ip_summed(struct sk_buff *skb, bool xmit)
 }
 
 /*
- *     forward_ip_summed - map internal checksum state back onto native kernel fields
+ *     forward_ip_summed - map internal checksum state back onto native
+ *			   kernel fields.
  *
  * @skb: Packet to manipulate.
- * @xmit: Whether we are about send on the transmit path the network stack.  This
- *	  follows the same logic as the @xmit field in compute_ip_summed().
- *	  Generally, a given vport will have opposite values for @xmit passed to these
- *	  two functions.
+ * @xmit: Whether we are about send on the transmit path the network stack.
+ *	  This follows the same logic as the @xmit field in compute_ip_summed().
+ *	  Generally, a given vport will have opposite values for @xmit passed to
+ *	  these two functions.
  *
  * When a packet is about to egress from OVS take our internal fields (including
  * any modifications we have made) and recreate the correct representation for
@@ -192,7 +203,7 @@ int compute_ip_summed(struct sk_buff *skb, bool xmit)
  */
 void forward_ip_summed(struct sk_buff *skb, bool xmit)
 {
-	switch(get_ip_summed(skb)) {
+	switch (get_ip_summed(skb)) {
 	case OVS_CSUM_NONE:
 		skb->ip_summed = CHECKSUM_NONE;
 		break;
@@ -230,7 +241,8 @@ void forward_ip_summed(struct sk_buff *skb, bool xmit)
 	}
 
 	if (get_ip_summed(skb) == OVS_CSUM_PARTIAL)
-		skb_set_transport_header(skb, OVS_CB(skb)->csum_start - skb_headroom(skb));
+		skb_set_transport_header(skb, OVS_CB(skb)->csum_start -
+					      skb_headroom(skb));
 }
 
 u8 get_ip_summed(struct sk_buff *skb)
@@ -250,7 +262,8 @@ void get_skb_csum_pointers(const struct sk_buff *skb, u16 *csum_start,
 	*csum_offset = skb->csum;
 }
 
-void set_skb_csum_pointers(struct sk_buff *skb, u16 csum_start, u16 csum_offset)
+void set_skb_csum_pointers(struct sk_buff *skb, u16 csum_start,
+			   u16 csum_offset)
 {
 	OVS_CB(skb)->csum_start = csum_start;
 	skb->csum = csum_offset;