[SYNCPPP]: Endianness and 64bit fixes.

	* trivial annotations
	* long != 32bit, use __be32
	* wrong endianness in sending CISCO_ADDR_REPLY

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 17 insertions, 18 deletions

diff --git a/drivers/net/wan/syncppp.c b/drivers/net/wan/syncppp.c
index 232ecba5340f..61e24b7a45a3 100644
--- a/drivers/net/wan/syncppp.c
+++ b/drivers/net/wan/syncppp.c
@@ -107,24 +107,24 @@
 struct ppp_header {
         u8 address;
         u8 control;
-        u16 protocol;
+        __be16 protocol;
 };
 #define PPP_HEADER_LEN          sizeof (struct ppp_header)
 
 struct lcp_header {
         u8 type;
         u8 ident;
-        u16 len;
+        __be16 len;
 };
 #define LCP_HEADER_LEN          sizeof (struct lcp_header)
 
 struct cisco_packet {
-        u32 type;
-        u32 par1;
-        u32 par2;
-        u16 rel;
-        u16 time0;
-        u16 time1;
+        __be32 type;
+        __be32 par1;
+        __be32 par2;
+        __be16 rel;
+        __be16 time0;
+        __be16 time1;
 };
 #define CISCO_PACKET_LEN 18
 #define CISCO_BIG_PACKET_LEN 20
@@ -139,7 +139,7 @@ static struct sk_buff_head tx_queue;
 static void sppp_keepalive (unsigned long dummy);
 static void sppp_cp_send (struct sppp *sp, u16 proto, u8 type,
         u8 ident, u16 len, void *data);
-static void sppp_cisco_send (struct sppp *sp, int type, long par1, long par2);
+static void sppp_cisco_send (struct sppp *sp, int type, u32 par1, u32 par2);
 static void sppp_lcp_input (struct sppp *sp, struct sk_buff *m);
 static void sppp_cisco_input (struct sppp *sp, struct sk_buff *m);
 static void sppp_ipcp_input (struct sppp *sp, struct sk_buff *m);
@@ -447,7 +447,7 @@ static void sppp_keepalive (unsigned long dummy)
                         sppp_cisco_send (sp, CISCO_KEEPALIVE_REQ, ++sp->pp_seq,
                                 sp->pp_rseq);
                 else if (sp->lcp.state == LCP_STATE_OPENED) {
-                        long nmagic = htonl (sp->lcp.magic);
+                        __be32 nmagic = htonl (sp->lcp.magic);
                         sp->lcp.echoid = ++sp->pp_seq;
                         sppp_cp_send (sp, PPP_LCP, LCP_ECHO_REQ,
                                 sp->lcp.echoid, 4, &nmagic);
@@ -667,7 +667,7 @@ badreq:
                                         dev->name, len);
                         break;
                 }
-                if (ntohl (*(long*)(h+1)) == sp->lcp.magic) {
+                if (ntohl (*(__be32*)(h+1)) == sp->lcp.magic) {
                         /* Line loopback mode detected. */
                         printk (KERN_WARNING "%s: loopback\n", dev->name);
                         if_down (dev);
@@ -680,7 +680,7 @@ badreq:
                         sppp_lcp_open (sp);
                         break;
                 }
-                *(long*)(h+1) = htonl (sp->lcp.magic);
+                *(__be32 *)(h+1) = htonl (sp->lcp.magic);
                 sppp_cp_send (sp, PPP_LCP, LCP_ECHO_REPLY, h->ident, len-4, h+1);
                 break;
         case LCP_ECHO_REPLY:
@@ -692,7 +692,7 @@ badreq:
                                         dev->name, len);
                         break;
                 }
-                if (ntohl (*(long*)(h+1)) != sp->lcp.magic)
+                if (ntohl(*(__be32 *)(h+1)) != sp->lcp.magic)
                 sp->pp_alivecnt = 0;
                 break;
         }
@@ -765,7 +765,7 @@ static void sppp_cisco_input (struct sppp *sp, struct sk_buff *skb)
                 {
                 struct in_device *in_dev;
                 struct in_ifaddr *ifa;
-                __be32 addr = 0, mask = ~0; /* FIXME: is the mask correct? */
+                __be32 addr = 0, mask = htonl(~0U); /* FIXME: is the mask correct? */
 #ifdef CONFIG_INET
                 rcu_read_lock();
                 if ((in_dev = __in_dev_get_rcu(dev)) != NULL)
@@ -782,8 +782,7 @@ static void sppp_cisco_input (struct sppp *sp, struct sk_buff *skb)
                 }
                 rcu_read_unlock();
 #endif          
-                /* I hope both addr and mask are in the net order */
-                sppp_cisco_send (sp, CISCO_ADDR_REPLY, addr, mask);
+                sppp_cisco_send (sp, CISCO_ADDR_REPLY, ntohl(addr), ntohl(mask));
                 break;
                 }
         }
@@ -844,7 +843,7 @@ static void sppp_cp_send (struct sppp *sp, u16 proto, u8 type,
  * Send Cisco keepalive packet.
  */
 
-static void sppp_cisco_send (struct sppp *sp, int type, long par1, long par2)
+static void sppp_cisco_send (struct sppp *sp, int type, u32 par1, u32 par2)
 {
         struct ppp_header *h;
         struct cisco_packet *ch;
@@ -868,7 +867,7 @@ static void sppp_cisco_send (struct sppp *sp, int type, long par1, long par2)
         ch->type = htonl (type);
         ch->par1 = htonl (par1);
         ch->par2 = htonl (par2);
-        ch->rel = -1;
+        ch->rel = htons(0xffff);
         ch->time0 = htons ((u16) (t >> 16));
         ch->time1 = htons ((u16) t);