ipv6: Use correct data types for ICMPv6 type and code

Change all the code that deals directly with ICMPv6 type and code
values to use u8 instead of a signed int as that's the actual data
type.

Signed-off-by: Brian Haley <brian.haley@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

16 files changed, 32 insertions, 32 deletions

diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 05ea7440d9e5..3e70faab2989 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -85,7 +85,7 @@ static inline __u32 dccp_v6_init_sequence(struct sk_buff *skb)
 }
 
 static void dccp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-                        int type, int code, int offset, __be32 info)
+                        u8 type, u8 code, int offset, __be32 info)
 {
         struct ipv6hdr *hdr = (struct ipv6hdr *)skb->data;
         const struct dccp_hdr *dh = (struct dccp_hdr *)(skb->data + offset);
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index 52449f7a1b71..86f42a288c4b 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -405,7 +405,7 @@ out:
 }
 
 static void ah6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-                    int type, int code, int offset, __be32 info)
+                    u8 type, u8 code, int offset, __be32 info)
 {
         struct net *net = dev_net(skb->dev);
         struct ipv6hdr *iph = (struct ipv6hdr*)skb->data;
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index c2f250150db1..678bb95b1525 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -354,7 +354,7 @@ static u32 esp6_get_mtu(struct xfrm_state *x, int mtu)
 }
 
 static void esp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-                     int type, int code, int offset, __be32 info)
+                     u8 type, u8 code, int offset, __be32 info)
 {
         struct net *net = dev_net(skb->dev);
         struct ipv6hdr *iph = (struct ipv6hdr*)skb->data;
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 36dff8807183..eab62a7a8f06 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -117,7 +117,7 @@ static __inline__ void icmpv6_xmit_unlock(struct sock *sk)
 /*
  * Slightly more convenient version of icmpv6_send.
  */
-void icmpv6_param_prob(struct sk_buff *skb, int code, int pos)
+void icmpv6_param_prob(struct sk_buff *skb, u8 code, int pos)
 {
         icmpv6_send(skb, ICMPV6_PARAMPROB, code, pos, skb->dev);
         kfree_skb(skb);
@@ -161,7 +161,7 @@ static int is_ineligible(struct sk_buff *skb)
 /*
  * Check the ICMP output rate limit
  */
-static inline int icmpv6_xrlim_allow(struct sock *sk, int type,
+static inline int icmpv6_xrlim_allow(struct sock *sk, u8 type,
                                      struct flowi *fl)
 {
         struct dst_entry *dst;
@@ -305,7 +305,7 @@ static inline void mip6_addr_swap(struct sk_buff *skb) {}
 /*
  *      Send an ICMP message in response to a packet in error
  */
-void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
+void icmpv6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info,
                  struct net_device *dev)
 {
         struct net *net = dev_net(skb->dev);
@@ -590,7 +590,7 @@ out:
         icmpv6_xmit_unlock(sk);
 }
 
-static void icmpv6_notify(struct sk_buff *skb, int type, int code, __be32 info)
+static void icmpv6_notify(struct sk_buff *skb, u8 type, u8 code, __be32 info)
 {
         struct inet6_protocol *ipprot;
         int inner_offset;
@@ -643,7 +643,7 @@ static int icmpv6_rcv(struct sk_buff *skb)
         struct in6_addr *saddr, *daddr;
         struct ipv6hdr *orig_hdr;
         struct icmp6hdr *hdr;
-        int type;
+        u8 type;
 
         if (!xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) {
                 struct sec_path *sp = skb_sec_path(skb);
@@ -914,7 +914,7 @@ static const struct icmp6_err {
         },
 };
 
-int icmpv6_err_convert(int type, int code, int *err)
+int icmpv6_err_convert(u8 type, u8 code, int *err)
 {
         int fatal = 0;
 
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 404d16a97d5c..51f410e7775a 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -394,13 +394,13 @@ parse_tlv_tnl_enc_lim(struct sk_buff *skb, __u8 * raw)
 
 static int
 ip6_tnl_err(struct sk_buff *skb, __u8 ipproto, struct inet6_skb_parm *opt,
-            int *type, int *code, int *msg, __u32 *info, int offset)
+            u8 *type, u8 *code, int *msg, __u32 *info, int offset)
 {
         struct ipv6hdr *ipv6h = (struct ipv6hdr *) skb->data;
         struct ip6_tnl *t;
         int rel_msg = 0;
-        int rel_type = ICMPV6_DEST_UNREACH;
-        int rel_code = ICMPV6_ADDR_UNREACH;
+        u8 rel_type = ICMPV6_DEST_UNREACH;
+        u8 rel_code = ICMPV6_ADDR_UNREACH;
         __u32 rel_info = 0;
         __u16 len;
         int err = -ENOENT;
@@ -488,11 +488,11 @@ out:
 
 static int
 ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-           int type, int code, int offset, __be32 info)
+           u8 type, u8 code, int offset, __be32 info)
 {
         int rel_msg = 0;
-        int rel_type = type;
-        int rel_code = code;
+        u8 rel_type = type;
+        u8 rel_code = code;
         __u32 rel_info = ntohl(info);
         int err;
         struct sk_buff *skb2;
@@ -586,11 +586,11 @@ out:
 
 static int
 ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-           int type, int code, int offset, __be32 info)
+           u8 type, u8 code, int offset, __be32 info)
 {
         int rel_msg = 0;
-        int rel_type = type;
-        int rel_code = code;
+        u8 rel_type = type;
+        u8 rel_code = code;
         __u32 rel_info = ntohl(info);
         int err;
 
diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c
index 3a0b3be7ece5..79c172f1ff01 100644
--- a/net/ipv6/ipcomp6.c
+++ b/net/ipv6/ipcomp6.c
@@ -51,7 +51,7 @@
 #include <linux/mutex.h>
 
 static void ipcomp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-                                int type, int code, int offset, __be32 info)
+                                u8 type, u8 code, int offset, __be32 info)
 {
         __be32 spi;
         struct ipv6hdr *iph = (struct ipv6hdr*)skb->data;
diff --git a/net/ipv6/mip6.c b/net/ipv6/mip6.c
index f995e19c87a9..f797e8c6f3b3 100644
--- a/net/ipv6/mip6.c
+++ b/net/ipv6/mip6.c
@@ -54,7 +54,7 @@ static inline void *mip6_padn(__u8 *data, __u8 padlen)
         return data + padlen;
 }
 
-static inline void mip6_param_prob(struct sk_buff *skb, int code, int pos)
+static inline void mip6_param_prob(struct sk_buff *skb, u8 code, int pos)
 {
         icmpv6_send(skb, ICMPV6_PARAMPROB, code, pos, skb->dev);
 }
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 8b0b6f948063..d6c3c1c34b2d 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -310,7 +310,7 @@ out:
 
 static void rawv6_err(struct sock *sk, struct sk_buff *skb,
                struct inet6_skb_parm *opt,
-               int type, int code, int offset, __be32 info)
+               u8 type, u8 code, int offset, __be32 info)
 {
         struct inet_sock *inet = inet_sk(sk);
         struct ipv6_pinfo *np = inet6_sk(sk);
@@ -343,7 +343,7 @@ static void rawv6_err(struct sock *sk, struct sk_buff *skb,
 }
 
 void raw6_icmp_error(struct sk_buff *skb, int nexthdr,
-                int type, int code, int inner_offset, __be32 info)
+                u8 type, u8 code, int inner_offset, __be32 info)
 {
         struct sock *sk;
         int hash;
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 658293ea05ba..1473ee0a1f51 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1865,7 +1865,7 @@ int ipv6_route_ioctl(struct net *net, unsigned int cmd, void __user *arg)
  *      Drop the packet on the floor
  */
 
-static int ip6_pkt_drop(struct sk_buff *skb, int code, int ipstats_mib_noroutes)
+static int ip6_pkt_drop(struct sk_buff *skb, u8 code, int ipstats_mib_noroutes)
 {
         int type;
         struct dst_entry *dst = skb_dst(skb);
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 53b6a4192b16..58810c65b635 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -317,7 +317,7 @@ failure:
 }
 
 static void tcp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-                int type, int code, int offset, __be32 info)
+                u8 type, u8 code, int offset, __be32 info)
 {
         struct ipv6hdr *hdr = (struct ipv6hdr*)skb->data;
         const struct tcphdr *th = (struct tcphdr *)(skb->data+offset);
diff --git a/net/ipv6/tunnel6.c b/net/ipv6/tunnel6.c
index 669f280989c3..633ad789effc 100644
--- a/net/ipv6/tunnel6.c
+++ b/net/ipv6/tunnel6.c
@@ -124,7 +124,7 @@ drop:
 }
 
 static void tunnel6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-                        int type, int code, int offset, __be32 info)
+                        u8 type, u8 code, int offset, __be32 info)
 {
         struct xfrm6_tunnel *handler;
 
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 023beda6b224..33b59bd92c4d 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -312,7 +312,7 @@ csum_copy_err:
 }
 
 void __udp6_lib_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-                    int type, int code, int offset, __be32 info,
+                    u8 type, u8 code, int offset, __be32 info,
                     struct udp_table *udptable)
 {
         struct ipv6_pinfo *np;
@@ -346,8 +346,8 @@ out:
 }
 
 static __inline__ void udpv6_err(struct sk_buff *skb,
-                                 struct inet6_skb_parm *opt, int type,
-                                 int code, int offset, __be32 info     )
+                                 struct inet6_skb_parm *opt, u8 type,
+                                 u8 code, int offset, __be32 info     )
 {
         __udp6_lib_err(skb, opt, type, code, offset, info, &udp_table);
 }
diff --git a/net/ipv6/udp_impl.h b/net/ipv6/udp_impl.h
index 23779208c334..6bb303471e20 100644
--- a/net/ipv6/udp_impl.h
+++ b/net/ipv6/udp_impl.h
@@ -9,7 +9,7 @@
 
 extern int      __udp6_lib_rcv(struct sk_buff *, struct udp_table *, int );
 extern void     __udp6_lib_err(struct sk_buff *, struct inet6_skb_parm *,
-                               int , int , int , __be32 , struct udp_table *);
+                               u8 , u8 , int , __be32 , struct udp_table *);
 
 extern int      udp_v6_get_port(struct sock *sk, unsigned short snum);
 
diff --git a/net/ipv6/udplite.c b/net/ipv6/udplite.c
index ba162a824585..4818c48688f2 100644
--- a/net/ipv6/udplite.c
+++ b/net/ipv6/udplite.c
@@ -20,7 +20,7 @@ static int udplitev6_rcv(struct sk_buff *skb)
 
 static void udplitev6_err(struct sk_buff *skb,
                           struct inet6_skb_parm *opt,
-                          int type, int code, int offset, __be32 info)
+                          u8 type, u8 code, int offset, __be32 info)
 {
         __udp6_lib_err(skb, opt, type, code, offset, info, &udplite_table);
 }
diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c
index 80193db224d9..81a95c00e503 100644
--- a/net/ipv6/xfrm6_tunnel.c
+++ b/net/ipv6/xfrm6_tunnel.c
@@ -262,7 +262,7 @@ static int xfrm6_tunnel_rcv(struct sk_buff *skb)
 }
 
 static int xfrm6_tunnel_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-                            int type, int code, int offset, __be32 info)
+                            u8 type, u8 code, int offset, __be32 info)
 {
         /* xfrm6_tunnel native err handling */
         switch (type) {
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index a63de3f7f185..6a4b19094143 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -133,7 +133,7 @@ static struct notifier_block sctp_inet6addr_notifier = {
 
 /* ICMP error handler. */
 SCTP_STATIC void sctp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-                             int type, int code, int offset, __be32 info)
+                             u8 type, u8 code, int offset, __be32 info)
 {
         struct inet6_dev *idev;
         struct sock *sk;