[IPV6]: Assorted trivial endianness annotations.

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

15 files changed, 50 insertions, 47 deletions

diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h
index 5a0ab04627bc..c0f7aec331c2 100644
--- a/include/linux/inetdevice.h
+++ b/include/linux/inetdevice.h
@@ -124,12 +124,13 @@ static __inline__ int inet_ifa_match(__be32 addr, struct in_ifaddr *ifa)
  *      Check if a mask is acceptable.
  */
  
-static __inline__ int bad_mask(u32 mask, u32 addr)
+static __inline__ int bad_mask(__be32 mask, __be32 addr)
 {
+        __u32 hmask;
         if (addr & (mask = ~mask))
                 return 1;
-        mask = ntohl(mask);
-        if (mask & (mask+1))
+        hmask = ntohl(mask);
+        if (hmask & (hmask+1))
                 return 1;
         return 0;
 }
@@ -190,11 +191,12 @@ static __inline__ __be32 inet_make_mask(int logmask)
         return 0;
 }
 
-static __inline__ int inet_mask_len(__u32 mask)
+static __inline__ int inet_mask_len(__be32 mask)
 {
-        if (!(mask = ntohl(mask)))
+        __u32 hmask = ntohl(mask);
+        if (!hmask)
                 return 0;
-        return 32 - ffz(~mask);
+        return 32 - ffz(~hmask);
 }
 
 
diff --git a/include/net/arp.h b/include/net/arp.h
index 6a3d9a7d302b..f02664568600 100644
--- a/include/net/arp.h
+++ b/include/net/arp.h
@@ -16,7 +16,7 @@ extern void     arp_send(int type, int ptype, __be32 dest_ip,
                          struct net_device *dev, __be32 src_ip,
                          unsigned char *dest_hw, unsigned char *src_hw, unsigned char *th);
 extern int      arp_bind_neighbour(struct dst_entry *dst);
-extern int      arp_mc_map(u32 addr, u8 *haddr, struct net_device *dev, int dir);
+extern int      arp_mc_map(__be32 addr, u8 *haddr, struct net_device *dev, int dir);
 extern void     arp_ifdown(struct net_device *dev);
 
 extern struct sk_buff *arp_create(int type, int ptype, __be32 dest_ip,
diff --git a/include/net/ip.h b/include/net/ip.h
index 949fa8683626..412e8114667d 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -123,7 +123,7 @@ extern int		ip4_datagram_connect(struct sock *sk,
  *      multicast packets.
  */
 
-static inline void ip_tr_mc_map(u32 addr, char *buf)
+static inline void ip_tr_mc_map(__be32 addr, char *buf)
 {
         buf[0]=0xC0;
         buf[1]=0x00;
@@ -238,9 +238,9 @@ static inline void ip_select_ident_more(struct iphdr *iph, struct dst_entry *dst
  *      Map a multicast IP onto multicast MAC for type ethernet.
  */
 
-static inline void ip_eth_mc_map(u32 addr, char *buf)
+static inline void ip_eth_mc_map(__be32 naddr, char *buf)
 {
-        addr=ntohl(addr);
+        __u32 addr=ntohl(naddr);
         buf[0]=0x01;
         buf[1]=0x00;
         buf[2]=0x5e;
@@ -256,13 +256,14 @@ static inline void ip_eth_mc_map(u32 addr, char *buf)
  *      Leave P_Key as 0 to be filled in by driver.
  */
 
-static inline void ip_ib_mc_map(u32 addr, char *buf)
+static inline void ip_ib_mc_map(__be32 naddr, char *buf)
 {
+        __u32 addr;
         buf[0]  = 0;            /* Reserved */
         buf[1]  = 0xff;         /* Multicast QPN */
         buf[2]  = 0xff;
         buf[3]  = 0xff;
-        addr    = ntohl(addr);
+        addr    = ntohl(naddr);
         buf[4]  = 0xff;
         buf[5]  = 0x12;         /* link local scope */
         buf[6]  = 0x40;         /* IPv4 signature */
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 8db39f7e3bf0..1144900d37f6 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -644,7 +644,7 @@ int inet_getname(struct socket *sock, struct sockaddr *uaddr,
                 sin->sin_port = inet->dport;
                 sin->sin_addr.s_addr = inet->daddr;
         } else {
-                __u32 addr = inet->rcv_saddr;
+                __be32 addr = inet->rcv_saddr;
                 if (!addr)
                         addr = inet->saddr;
                 sin->sin_port = inet->sport;
@@ -995,8 +995,8 @@ static int inet_sk_reselect_saddr(struct sock *sk)
         struct inet_sock *inet = inet_sk(sk);
         int err;
         struct rtable *rt;
-        __u32 old_saddr = inet->saddr;
-        __u32 new_saddr;
+        __be32 old_saddr = inet->saddr;
+        __be32 new_saddr;
         __be32 daddr = inet->daddr;
 
         if (inet->opt && inet->opt->srr)
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index cfb5d3de9c84..3981e8be9ab8 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -203,7 +203,7 @@ struct neigh_table arp_tbl = {
         .gc_thresh3 =   1024,
 };
 
-int arp_mc_map(u32 addr, u8 *haddr, struct net_device *dev, int dir)
+int arp_mc_map(__be32 addr, u8 *haddr, struct net_device *dev, int dir)
 {
         switch (dev->type) {
         case ARPHRD_ETHER:
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index 6460233407c7..c3a61ebbadef 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -966,7 +966,7 @@ static int cipso_v4_gentag_hdr(const struct cipso_v4_doi *doi_def,
 
         buf[0] = IPOPT_CIPSO;
         buf[1] = CIPSO_V4_HDR_LEN + len;
-        *(u32 *)&buf[2] = htonl(doi_def->doi);
+        *(__be32 *)&buf[2] = htonl(doi_def->doi);
 
         return 0;
 }
@@ -1140,7 +1140,7 @@ int cipso_v4_validate(unsigned char **option)
         }
 
         rcu_read_lock();
-        doi_def = cipso_v4_doi_getdef(ntohl(*((u32 *)&opt[2])));
+        doi_def = cipso_v4_doi_getdef(ntohl(*((__be32 *)&opt[2])));
         if (doi_def == NULL) {
                 err_offset = 2;
                 goto validate_return_locked;
@@ -1370,7 +1370,7 @@ int cipso_v4_sock_getattr(struct sock *sk, struct netlbl_lsm_secattr *secattr)
         if (ret_val == 0)
                 return ret_val;
 
-        doi = ntohl(*(u32 *)&cipso_ptr[2]);
+        doi = ntohl(*(__be32 *)&cipso_ptr[2]);
         rcu_read_lock();
         doi_def = cipso_v4_doi_getdef(doi);
         if (doi_def == NULL) {
@@ -1436,7 +1436,7 @@ int cipso_v4_skbuff_getattr(const struct sk_buff *skb,
         if (cipso_v4_cache_check(cipso_ptr, cipso_ptr[1], secattr) == 0)
                 return 0;
 
-        doi = ntohl(*(u32 *)&cipso_ptr[2]);
+        doi = ntohl(*(__be32 *)&cipso_ptr[2]);
         rcu_read_lock();
         doi_def = cipso_v4_doi_getdef(doi);
         if (doi_def == NULL)
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index f38cbbae0ae3..a1b356c8aa59 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -577,20 +577,20 @@ static int inet_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg
  *      Determine a default network mask, based on the IP address.
  */
 
-static __inline__ int inet_abc_len(u32 addr)
+static __inline__ int inet_abc_len(__be32 addr)
 {
         int rc = -1;    /* Something else, probably a multicast. */
 
         if (ZERONET(addr))
                 rc = 0;
         else {
-                addr = ntohl(addr);
+                __u32 haddr = ntohl(addr);
 
-                if (IN_CLASSA(addr))
+                if (IN_CLASSA(haddr))
                         rc = 8;
-                else if (IN_CLASSB(addr))
+                else if (IN_CLASSB(haddr))
                         rc = 16;
-                else if (IN_CLASSC(addr))
+                else if (IN_CLASSC(haddr))
                         rc = 24;
         }
 
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index def32d8d3b06..90942a384a45 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -341,7 +341,7 @@ packet_routed:
 
         /* OK, we know where to send it, allocate and build IP header. */
         iph = (struct iphdr *) skb_push(skb, sizeof(struct iphdr) + (opt ? opt->optlen : 0));
-        *((__u16 *)iph) = htons((4 << 12) | (5 << 8) | (inet->tos & 0xff));
+        *((__be16 *)iph) = htons((4 << 12) | (5 << 8) | (inet->tos & 0xff));
         iph->tot_len = htons(skb->len);
         if (ip_dont_fragment(sk, &rt->u.dst) && !ipfragok)
                 iph->frag_off = htons(IP_DF);
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 4b132953bcc2..57d4bae6f080 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -355,7 +355,7 @@ int ip_recv_error(struct sock *sk, struct msghdr *msg, int len)
         sin = (struct sockaddr_in *)msg->msg_name;
         if (sin) {
                 sin->sin_family = AF_INET;
-                sin->sin_addr.s_addr = *(u32*)(skb->nh.raw + serr->addr_offset);
+                sin->sin_addr.s_addr = *(__be32*)(skb->nh.raw + serr->addr_offset);
                 sin->sin_port = serr->port;
                 memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
         }
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 5c31dead2bdc..a6c63bbd9ddb 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -854,8 +854,8 @@ static void raw_seq_stop(struct seq_file *seq, void *v)
 static __inline__ char *get_raw_sock(struct sock *sp, char *tmpbuf, int i)
 {
         struct inet_sock *inet = inet_sk(sp);
-        unsigned int dest = inet->daddr,
-                     src = inet->rcv_saddr;
+        __be32 dest = inet->daddr,
+               src = inet->rcv_saddr;
         __u16 destp = 0,
               srcp  = inet->num;
 
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index d7152b2b2c64..ee00b6506ab4 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -566,8 +566,8 @@ static inline u32 rt_score(struct rtable *rt)
 
 static inline int compare_keys(struct flowi *fl1, struct flowi *fl2)
 {
-        return ((fl1->nl_u.ip4_u.daddr ^ fl2->nl_u.ip4_u.daddr) |
-                (fl1->nl_u.ip4_u.saddr ^ fl2->nl_u.ip4_u.saddr) |
+        return ((__force u32)((fl1->nl_u.ip4_u.daddr ^ fl2->nl_u.ip4_u.daddr) |
+                (fl1->nl_u.ip4_u.saddr ^ fl2->nl_u.ip4_u.saddr)) |
                 (fl1->mark ^ fl2->mark) |
                 (*(u16 *)&fl1->nl_u.ip4_u.tos ^
                  *(u16 *)&fl2->nl_u.ip4_u.tos) |
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index 661e0a4bca72..6b19530905af 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -35,23 +35,23 @@ module_init(init_syncookies);
 #define COOKIEBITS 24   /* Upper bits store count */
 #define COOKIEMASK (((__u32)1 << COOKIEBITS) - 1)
 
-static u32 cookie_hash(u32 saddr, u32 daddr, u32 sport, u32 dport,
+static u32 cookie_hash(__be32 saddr, __be32 daddr, __be16 sport, __be16 dport,
                        u32 count, int c)
 {
         __u32 tmp[16 + 5 + SHA_WORKSPACE_WORDS];
 
         memcpy(tmp + 3, syncookie_secret[c], sizeof(syncookie_secret[c]));
-        tmp[0] = saddr;
-        tmp[1] = daddr;
-        tmp[2] = (sport << 16) + dport;
+        tmp[0] = (__force u32)saddr;
+        tmp[1] = (__force u32)daddr;
+        tmp[2] = ((__force u32)sport << 16) + (__force u32)dport;
         tmp[3] = count;
         sha_transform(tmp + 16, (__u8 *)tmp, tmp + 16 + 5);
 
         return tmp[17];
 }
 
-static __u32 secure_tcp_syn_cookie(__u32 saddr, __u32 daddr, __u16 sport,
-                                   __u16 dport, __u32 sseq, __u32 count,
+static __u32 secure_tcp_syn_cookie(__be32 saddr, __be32 daddr, __be16 sport,
+                                   __be16 dport, __u32 sseq, __u32 count,
                                    __u32 data)
 {
         /*
@@ -80,8 +80,8 @@ static __u32 secure_tcp_syn_cookie(__u32 saddr, __u32 daddr, __u16 sport,
  * "maxdiff" if the current (passed-in) "count".  The return value
  * is (__u32)-1 if this test fails.
  */
-static __u32 check_tcp_syn_cookie(__u32 cookie, __u32 saddr, __u32 daddr,
-                                  __u16 sport, __u16 dport, __u32 sseq,
+static __u32 check_tcp_syn_cookie(__u32 cookie, __be32 saddr, __be32 daddr,
+                                  __be16 sport, __be16 dport, __u32 sseq,
                                   __u32 count, __u32 maxdiff)
 {
         __u32 diff;
@@ -220,7 +220,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
         }
         ireq = inet_rsk(req);
         treq = tcp_rsk(req);
-        treq->rcv_isn           = htonl(skb->h.th->seq) - 1;
+        treq->rcv_isn           = ntohl(skb->h.th->seq) - 1;
         treq->snt_isn           = cookie; 
         req->mss                = mss;
         ireq->rmt_port          = skb->h.th->source;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 8c8e8112f98d..0ca8dead03b0 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -542,7 +542,7 @@ static void tcp_v4_send_reset(struct sock *sk, struct sk_buff *skb)
         struct {
                 struct tcphdr th;
 #ifdef CONFIG_TCP_MD5SIG
-                u32 opt[(TCPOLEN_MD5SIG_ALIGNED >> 2)];
+                __be32 opt[(TCPOLEN_MD5SIG_ALIGNED >> 2)];
 #endif
         } rep;
         struct ip_reply_arg arg;
@@ -618,9 +618,9 @@ static void tcp_v4_send_ack(struct tcp_timewait_sock *twsk,
         struct tcphdr *th = skb->h.th;
         struct {
                 struct tcphdr th;
-                u32 opt[(TCPOLEN_TSTAMP_ALIGNED >> 2)
+                __be32 opt[(TCPOLEN_TSTAMP_ALIGNED >> 2)
 #ifdef CONFIG_TCP_MD5SIG
-                        + (TCPOLEN_MD5SIG_ALIGNED >> 2)
+                           + (TCPOLEN_MD5SIG_ALIGNED >> 2)
 #endif
                         ];
         } rep;
@@ -2333,8 +2333,8 @@ static void get_tcp4_sock(struct sock *sp, char *tmpbuf, int i)
         struct tcp_sock *tp = tcp_sk(sp);
         const struct inet_connection_sock *icsk = inet_csk(sp);
         struct inet_sock *inet = inet_sk(sp);
-        unsigned int dest = inet->daddr;
-        unsigned int src = inet->rcv_saddr;
+        __be32 dest = inet->daddr;
+        __be32 src = inet->rcv_saddr;
         __u16 destp = ntohs(inet->dport);
         __u16 srcp = ntohs(inet->sport);
 
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 4a0ee901a888..383cb38461c5 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -493,7 +493,7 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
                            struct request_sock **prev)
 {
         struct tcphdr *th = skb->h.th;
-        u32 flg = tcp_flag_word(th) & (TCP_FLAG_RST|TCP_FLAG_SYN|TCP_FLAG_ACK);
+        __be32 flg = tcp_flag_word(th) & (TCP_FLAG_RST|TCP_FLAG_SYN|TCP_FLAG_ACK);
         int paws_reject = 0;
         struct tcp_options_received tmp_opt;
         struct sock *child;
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index fb09ade5897b..3355c276b611 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -297,7 +297,7 @@ static void tcp_retransmit_timer(struct sock *sk)
                 if (net_ratelimit()) {
                         struct inet_sock *inet = inet_sk(sk);
                         printk(KERN_DEBUG "TCP: Treason uncloaked! Peer %u.%u.%u.%u:%u/%u shrinks window %u:%u. Repaired.\n",
-                               NIPQUAD(inet->daddr), htons(inet->dport),
+                               NIPQUAD(inet->daddr), ntohs(inet->dport),
                                inet->num, tp->snd_una, tp->snd_nxt);
                 }
 #endif