Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (32 commits)
  [NetLabel]: correct usage of RCU locking
  [TCP]: fix D-SACK cwnd handling
  [NET] napi: use non-interruptible sleep in napi_disable
  [SCTP] net/sctp/auth.c: make 3 functions static
  [TCP]: Add missing I/O AT code to ipv6 side.
  [SCTP]: #if 0 sctp_update_copy_cksum()
  [INET]: Unexport icmpmsg_statistics
  [NET]: Unexport sock_enable_timestamp().
  [TCP]: Make tcp_match_skb_to_sack() static.
  [IRDA]: Make ircomm_tty static.
  [NET] fs/proc/proc_net.c: make a struct static
  [NET] dev_change_name: ignore changes to same name
  [NET]: Document some simple rules for actions
  [NET_CLS_ACT]: Use skb_act_clone
  [NET_CLS_ACT]: Introduce skb_act_clone
  [TCP]: Fix scatterlist handling in MD5 signature support.
  [IPSEC]: Fix scatterlist handling in skb_icv_walk().
  [IPSEC]: Add missing sg_init_table() calls to ESP.
  [CRYPTO]: Initialize TCRYPT on-stack scatterlist objects correctly.
  [CRYPTO]: HMAC needs some more scatterlist fixups.
  ...

1 files changed, 22 insertions, 11 deletions

diff --git a/net/dccp/options.c b/net/dccp/options.c
index d361b5533309..d286cffe2c49 100644
--- a/net/dccp/options.c
+++ b/net/dccp/options.c
@@ -14,6 +14,7 @@
 #include <linux/dccp.h>
 #include <linux/module.h>
 #include <linux/types.h>
+#include <asm/unaligned.h>
 #include <linux/kernel.h>
 #include <linux/skbuff.h>
 
@@ -59,6 +60,7 @@ int dccp_parse_options(struct sock *sk, struct sk_buff *skb)
 	unsigned char opt, len;
 	unsigned char *value;
 	u32 elapsed_time;
+	__be32 opt_val;
 	int rc;
 	int mandatory = 0;
 
@@ -145,7 +147,8 @@ int dccp_parse_options(struct sock *sk, struct sk_buff *skb)
 			if (len != 4)
 				goto out_invalid_option;
 
-			opt_recv->dccpor_timestamp = ntohl(*(__be32 *)value);
+			opt_val = get_unaligned((__be32 *)value);
+			opt_recv->dccpor_timestamp = ntohl(opt_val);
 
 			dp->dccps_timestamp_echo = opt_recv->dccpor_timestamp;
 			dp->dccps_timestamp_time = ktime_get_real();
@@ -159,7 +162,8 @@ int dccp_parse_options(struct sock *sk, struct sk_buff *skb)
 			if (len != 4 && len != 6 && len != 8)
 				goto out_invalid_option;
 
-			opt_recv->dccpor_timestamp_echo = ntohl(*(__be32 *)value);
+			opt_val = get_unaligned((__be32 *)value);
+			opt_recv->dccpor_timestamp_echo = ntohl(opt_val);
 
 			dccp_pr_debug("%s rx opt: TIMESTAMP_ECHO=%u, len=%d, "
 				      "ackno=%llu", dccp_role(sk),
@@ -168,16 +172,20 @@ int dccp_parse_options(struct sock *sk, struct sk_buff *skb)
 				      (unsigned long long)
 				      DCCP_SKB_CB(skb)->dccpd_ack_seq);
 
+			value += 4;
 
-			if (len == 4) {
+			if (len == 4) {		/* no elapsed time included */
 				dccp_pr_debug_cat("\n");
 				break;
 			}
 
-			if (len == 6)
-				elapsed_time = ntohs(*(__be16 *)(value + 4));
-			else
-				elapsed_time = ntohl(*(__be32 *)(value + 4));
+			if (len == 6) {		/* 2-byte elapsed time */
+				__be16 opt_val2 = get_unaligned((__be16 *)value);
+				elapsed_time = ntohs(opt_val2);
+			} else {		/* 4-byte elapsed time */
+				opt_val = get_unaligned((__be32 *)value);
+				elapsed_time = ntohl(opt_val);
+			}
 
 			dccp_pr_debug_cat(", ELAPSED_TIME=%u\n", elapsed_time);
 
@@ -192,10 +200,13 @@ int dccp_parse_options(struct sock *sk, struct sk_buff *skb)
 			if (pkt_type == DCCP_PKT_DATA)
 				continue;
 
-			if (len == 2)
-				elapsed_time = ntohs(*(__be16 *)value);
-			else
-				elapsed_time = ntohl(*(__be32 *)value);
+			if (len == 2) {
+				__be16 opt_val2 = get_unaligned((__be16 *)value);
+				elapsed_time = ntohs(opt_val2);
+			} else {
+				opt_val = get_unaligned((__be32 *)value);
+				elapsed_time = ntohl(opt_val);
+			}
 
 			if (elapsed_time > opt_recv->dccpor_elapsed_time)
 				opt_recv->dccpor_elapsed_time = elapsed_time;