net: em_cmp.c use unaligned access helpers

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 6 deletions

diff --git a/net/sched/em_cmp.c b/net/sched/em_cmp.c
index cc49c932641d..bc450397487a 100644
--- a/net/sched/em_cmp.c
+++ b/net/sched/em_cmp.c
@@ -14,6 +14,7 @@
 #include <linux/kernel.h>
 #include <linux/skbuff.h>
 #include <linux/tc_ematch/tc_em_cmp.h>
+#include <asm/unaligned.h>
 #include <net/pkt_cls.h>
 
 static inline int cmp_needs_transformation(struct tcf_em_cmp *cmp)
@@ -37,8 +38,7 @@ static int em_cmp_match(struct sk_buff *skb, struct tcf_ematch *em,
                         break;
 
                 case TCF_EM_ALIGN_U16:
-                        val = *ptr << 8;
-                        val |= *(ptr+1);
+                        val = get_unaligned_be16(ptr);
 
                         if (cmp_needs_transformation(cmp))
                                 val = be16_to_cpu(val);
@@ -47,10 +47,7 @@ static int em_cmp_match(struct sk_buff *skb, struct tcf_ematch *em,
                 case TCF_EM_ALIGN_U32:
                         /* Worth checking boundries? The branching seems
                          * to get worse. Visit again. */
-                        val = *ptr << 24;
-                        val |= *(ptr+1) << 16;
-                        val |= *(ptr+2) << 8;
-                        val |= *(ptr+3);
+                        val = get_unaligned_be32(ptr);
 
                         if (cmp_needs_transformation(cmp))
                                 val = be32_to_cpu(val);