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, 5 insertions, 5 deletions

diff --git a/drivers/net/ppp_async.c b/drivers/net/ppp_async.c
index 78d70a6481bf..a1b82c9c67d2 100644
--- a/drivers/net/ppp_async.c
+++ b/drivers/net/ppp_async.c
@@ -32,6 +32,7 @@
 #include <linux/init.h>
 #include <linux/jiffies.h>
 #include <linux/slab.h>
+#include <asm/unaligned.h>
 #include <asm/uaccess.h>
 #include <asm/string.h>
 
@@ -542,7 +543,7 @@ ppp_async_encode(struct asyncppp *ap)
         data = ap->tpkt->data;
         count = ap->tpkt->len;
         fcs = ap->tfcs;
-        proto = (data[0] << 8) + data[1];
+        proto = get_unaligned_be16(data);
 
         /*
          * LCP packets with code values between 1 (configure-reqest)
@@ -963,7 +964,7 @@ static void async_lcp_peek(struct asyncppp *ap, unsigned char *data,
         code = data[0];
         if (code != CONFACK && code != CONFREQ)
                 return;
-        dlen = (data[2] << 8) + data[3];
+        dlen = get_unaligned_be16(data + 2);
         if (len < dlen)
                 return;         /* packet got truncated or length is bogus */
 
@@ -997,15 +998,14 @@ static void async_lcp_peek(struct asyncppp *ap, unsigned char *data,
         while (dlen >= 2 && dlen >= data[1] && data[1] >= 2) {
                 switch (data[0]) {
                 case LCP_MRU:
-                        val = (data[2] << 8) + data[3];
+                        val = get_unaligned_be16(data + 2);
                         if (inbound)
                                 ap->mru = val;
                         else
                                 ap->chan.mtu = val;
                         break;
                 case LCP_ASYNCMAP:
-                        val = (data[2] << 24) + (data[3] << 16)
-                                + (data[4] << 8) + data[5];
+                        val = get_unaligned_be32(data + 2);
                         if (inbound)
                                 ap->raccm = val;
                         else