net: fix some sparse errors

make C=2 CF="-D__CHECK_ENDIAN__" M=net

And fix flowi4_init_output() prototype for sport

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

6 files changed, 22 insertions, 21 deletions

diff --git a/include/net/flow.h b/include/net/flow.h
index da1f064a81b3..9b582437fbea 100644
--- a/include/net/flow.h
+++ b/include/net/flow.h
@@ -78,7 +78,7 @@ static inline void flowi4_init_output(struct flowi4 *fl4, int oif,
                                       __u32 mark, __u8 tos, __u8 scope,
                                       __u8 proto, __u8 flags,
                                       __be32 daddr, __be32 saddr,
-                                      __be16 dport, __be32 sport)
+                                      __be16 dport, __be16 sport)
 {
         fl4->flowi4_oif = oif;
         fl4->flowi4_iif = 0;
diff --git a/net/core/secure_seq.c b/net/core/secure_seq.c
index 6fd44606fdd1..99b2596531bb 100644
--- a/net/core/secure_seq.c
+++ b/net/core/secure_seq.c
@@ -46,7 +46,7 @@ __u32 secure_tcpv6_sequence_number(const __be32 *saddr, const __be32 *daddr,
 
         memcpy(hash, saddr, 16);
         for (i = 0; i < 4; i++)
-                secret[i] = net_secret[i] + daddr[i];
+                secret[i] = net_secret[i] + (__force u32)daddr[i];
         secret[4] = net_secret[4] +
                 (((__force u16)sport << 16) + (__force u16)dport);
         for (i = 5; i < MD5_MESSAGE_BYTES / 4; i++)
diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c
index 86f13c67ea85..986a02bda660 100644
--- a/net/ipv4/inetpeer.c
+++ b/net/ipv4/inetpeer.c
@@ -136,7 +136,7 @@ static int addr_compare(const struct inetpeer_addr *a,
         for (i = 0; i < n; i++) {
                 if (a->addr.a6[i] == b->addr.a6[i])
                         continue;
-                if (a->addr.a6[i] < b->addr.a6[i])
+                if ((__force u32)a->addr.a6[i] < (__force u32)b->addr.a6[i])
                         return -1;
                 return 1;
         }
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 7e4ec9fc2cef..6e412a60a91f 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -141,7 +141,7 @@ __be32 ic_servaddr = NONE;	/* Boot server IP address */
 __be32 root_server_addr = NONE; /* Address of NFS server */
 u8 root_server_path[256] = { 0, };      /* Path to mount as root */
 
-u32 ic_dev_xid;         /* Device under configuration */
+__be32 ic_dev_xid;              /* Device under configuration */
 
 /* vendor class identifier */
 static char vendor_class_identifier[253] __initdata;
@@ -859,9 +859,9 @@ static int __init ic_bootp_string(char *dest, char *src, int len, int max)
  */
 static void __init ic_do_bootp_ext(u8 *ext)
 {
-       u8 servers;
-       int i;
-        u16 mtu;
+        u8 servers;
+        int i;
+        __be16 mtu;
 
 #ifdef IPCONFIG_DEBUG
         u8 *c;
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 43d4c3b22369..aea5a199c37a 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -140,13 +140,14 @@ static void ping_v4_unhash(struct sock *sk)
                 write_lock_bh(&ping_table.lock);
                 hlist_nulls_del(&sk->sk_nulls_node);
                 sock_put(sk);
-                isk->inet_num = isk->inet_sport = 0;
+                isk->inet_num = 0;
+                isk->inet_sport = 0;
                 sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
                 write_unlock_bh(&ping_table.lock);
         }
 }
 
-static struct sock *ping_v4_lookup(struct net *net, u32 saddr, u32 daddr,
+static struct sock *ping_v4_lookup(struct net *net, __be32 saddr, __be32 daddr,
                                    u16 ident, int dif)
 {
         struct hlist_nulls_head *hslot = ping_hashslot(&ping_table, net, ident);
@@ -154,15 +155,15 @@ static struct sock *ping_v4_lookup(struct net *net, u32 saddr, u32 daddr,
         struct inet_sock *isk;
         struct hlist_nulls_node *hnode;
 
-        pr_debug("try to find: num = %d, daddr = %ld, dif = %d\n",
-                         (int)ident, (unsigned long)daddr, dif);
+        pr_debug("try to find: num = %d, daddr = %pI4, dif = %d\n",
+                         (int)ident, &daddr, dif);
         read_lock_bh(&ping_table.lock);
 
         ping_portaddr_for_each_entry(sk, hnode, hslot) {
                 isk = inet_sk(sk);
 
-                pr_debug("found: %p: num = %d, daddr = %ld, dif = %d\n", sk,
-                         (int)isk->inet_num, (unsigned long)isk->inet_rcv_saddr,
+                pr_debug("found: %p: num = %d, daddr = %pI4, dif = %d\n", sk,
+                         (int)isk->inet_num, &isk->inet_rcv_saddr,
                          sk->sk_bound_dev_if);
 
                 pr_debug("iterate\n");
@@ -254,7 +255,7 @@ static int ping_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
                 sk, addr->sin_addr.s_addr, ntohs(addr->sin_port));
 
         chk_addr_ret = inet_addr_type(sock_net(sk), addr->sin_addr.s_addr);
-        if (addr->sin_addr.s_addr == INADDR_ANY)
+        if (addr->sin_addr.s_addr == htonl(INADDR_ANY))
                 chk_addr_ret = RTN_LOCAL;
 
         if ((sysctl_ip_nonlocal_bind == 0 &&
@@ -278,9 +279,9 @@ static int ping_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
                 goto out;
         }
 
-        pr_debug("after bind(): num = %d, daddr = %ld, dif = %d\n",
+        pr_debug("after bind(): num = %d, daddr = %pI4, dif = %d\n",
                 (int)isk->inet_num,
-                (unsigned long) isk->inet_rcv_saddr,
+                &isk->inet_rcv_saddr,
                 (int)sk->sk_bound_dev_if);
 
         err = 0;
@@ -407,7 +408,7 @@ out:
 struct pingfakehdr {
         struct icmphdr icmph;
         struct iovec *iov;
-        u32 wcheck;
+        __wsum wcheck;
 };
 
 static int ping_getfrag(void *from, char * to,
@@ -459,7 +460,7 @@ static int ping_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
         struct rtable *rt = NULL;
         struct ip_options_data opt_copy;
         int free = 0;
-        u32 saddr, daddr, faddr;
+        __be32 saddr, daddr, faddr;
         u8  tos;
         int err;
 
@@ -696,8 +697,8 @@ void ping_rcv(struct sk_buff *skb)
         struct net *net = dev_net(skb->dev);
         struct iphdr *iph = ip_hdr(skb);
         struct icmphdr *icmph = icmp_hdr(skb);
-        u32 saddr = iph->saddr;
-        u32 daddr = iph->daddr;
+        __be32 saddr = iph->saddr;
+        __be32 daddr = iph->daddr;
 
         /* We assume the packet has already been checked by icmp_rcv */
 
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index ae08aee1773c..251e7cd75e89 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -575,7 +575,7 @@ int datagram_recv_ctl(struct sock *sk, struct msghdr *msg, struct sk_buff *skb)
         }
         if (np->rxopt.bits.rxorigdstaddr) {
                 struct sockaddr_in6 sin6;
-                u16 *ports = (u16 *) skb_transport_header(skb);
+                __be16 *ports = (__be16 *) skb_transport_header(skb);
 
                 if (skb_transport_offset(skb) + 4 <= skb->len) {
                         /* All current transport protocols have the port numbers in the