net: ppp: use {get,put}_unaligned_be{16,32}

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Reviewed-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 5 deletions

diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c
index 6456484c0299..c7a6c4466978 100644
--- a/drivers/net/ppp_generic.c
+++ b/drivers/net/ppp_generic.c
@@ -46,6 +46,7 @@
 #include <linux/device.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>
+#include <asm/unaligned.h>
 #include <net/slhc_vj.h>
 #include <asm/atomic.h>
 
@@ -210,7 +211,7 @@ struct ppp_net {
 };
 
 /* Get the PPP protocol number from a skb */
-#define PPP_PROTO(skb)  (((skb)->data[0] << 8) + (skb)->data[1])
+#define PPP_PROTO(skb)  get_unaligned_be16((skb)->data)
 
 /* We limit the length of ppp->file.rq to this (arbitrary) value */
 #define PPP_MAX_RQLEN   32
@@ -964,8 +965,7 @@ ppp_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
         pp = skb_push(skb, 2);
         proto = npindex_to_proto[npi];
-        pp[0] = proto >> 8;
-        pp[1] = proto;
+        put_unaligned_be16(proto, pp);
 
         netif_stop_queue(dev);
         skb_queue_tail(&ppp->file.xq, skb);
@@ -1473,8 +1473,7 @@ static int ppp_mp_explode(struct ppp *ppp, struct sk_buff *skb)
                 q = skb_put(frag, flen + hdrlen);
 
                 /* make the MP header */
-                q[0] = PPP_MP >> 8;
-                q[1] = PPP_MP;
+                put_unaligned_be16(PPP_MP, q);
                 if (ppp->flags & SC_MP_XSHORTSEQ) {
                         q[2] = bits + ((ppp->nxseq >> 8) & 0xf);
                         q[3] = ppp->nxseq;