Merge linux-stable 3.0.28 into android-3.0

[firefly-linux-kernel-4.4.55.git] / include / net / ipv6.h

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 34200f9e6805c1393cf348e2d4f3d3ff57544b8f..c39121f6bc940d10d02214f2975d05f630e2b7f1 100644 (file)
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -77,11 +77,9 @@
 /*
  *     Addr scopes
  */
-#ifdef __KERNEL__
 #define IPV6_ADDR_MC_SCOPE(a)  \
        ((a)->s6_addr[1] & 0x0f)        /* nonstandard */
 #define __IPV6_ADDR_SCOPE_INVALID      -1
-#endif
 #define IPV6_ADDR_SCOPE_NODELOCAL      0x01
 #define IPV6_ADDR_SCOPE_LINKLOCAL      0x02
 #define IPV6_ADDR_SCOPE_SITELOCAL      0x05
@@ -91,14 +89,12 @@
 /*
  *     Addr flags
  */
-#ifdef __KERNEL__
 #define IPV6_ADDR_MC_FLAG_TRANSIENT(a) \
        ((a)->s6_addr[1] & 0x10)
 #define IPV6_ADDR_MC_FLAG_PREFIX(a)    \
        ((a)->s6_addr[1] & 0x20)
 #define IPV6_ADDR_MC_FLAG_RENDEZVOUS(a)        \
        ((a)->s6_addr[1] & 0x40)
-#endif
 
 /*
  *     fragmentation header
@@ -113,8 +109,6 @@ struct frag_hdr {
 
 #define        IP6_MF  0x0001
 
-#ifdef __KERNEL__
-
 #include <net/sock.h>
 
 /* sysctls */
@@ -129,6 +123,15 @@ extern struct ctl_path net_ipv6_ctl_path[];
        SNMP_INC_STATS##modifier((net)->mib.statname##_statistics, (field));\
 })
 
+/* per device counters are atomic_long_t */
+#define _DEVINCATOMIC(net, statname, modifier, idev, field)            \
+({                                                                     \
+       struct inet6_dev *_idev = (idev);                               \
+       if (likely(_idev != NULL))                                      \
+               SNMP_INC_STATS_ATOMIC_LONG((_idev)->stats.statname##dev, (field)); \
+       SNMP_INC_STATS##modifier((net)->mib.statname##_statistics, (field));\
+})
+
 #define _DEVADD(net, statname, modifier, idev, field, val)             \
 ({                                                                     \
        struct inet6_dev *_idev = (idev);                               \
@@ -160,16 +163,16 @@ extern struct ctl_path net_ipv6_ctl_path[];
 #define IP6_UPD_PO_STATS_BH(net, idev,field,val)   \
                _DEVUPD(net, ipv6, 64_BH, idev, field, val)
 #define ICMP6_INC_STATS(net, idev, field)      \
-               _DEVINC(net, icmpv6, , idev, field)
+               _DEVINCATOMIC(net, icmpv6, , idev, field)
 #define ICMP6_INC_STATS_BH(net, idev, field)   \
-               _DEVINC(net, icmpv6, _BH, idev, field)
+               _DEVINCATOMIC(net, icmpv6, _BH, idev, field)
 
 #define ICMP6MSGOUT_INC_STATS(net, idev, field)                \
-       _DEVINC(net, icmpv6msg, , idev, field +256)
+       _DEVINCATOMIC(net, icmpv6msg, , idev, field +256)
 #define ICMP6MSGOUT_INC_STATS_BH(net, idev, field)     \
-       _DEVINC(net, icmpv6msg, _BH, idev, field +256)
+       _DEVINCATOMIC(net, icmpv6msg, _BH, idev, field +256)
 #define ICMP6MSGIN_INC_STATS_BH(net, idev, field)      \
-       _DEVINC(net, icmpv6msg, _BH, idev, field)
+       _DEVINCATOMIC(net, icmpv6msg, _BH, idev, field)
 
 struct ip6_ra_chain {
        struct ip6_ra_chain     *next;
@@ -376,8 +379,8 @@ enum ip6_defrag_users {
 struct ip6_create_arg {
        __be32 id;
        u32 user;
-       struct in6_addr *src;
-       struct in6_addr *dst;
+       const struct in6_addr *src;
+       const struct in6_addr *dst;
 };
 
 void ip6_frag_init(struct inet_frag_queue *q, void *a);
@@ -460,17 +463,7 @@ static inline int ipv6_addr_diff(const struct in6_addr *a1, const struct in6_add
        return __ipv6_addr_diff(a1, a2, sizeof(struct in6_addr));
 }
 
-static __inline__ void ipv6_select_ident(struct frag_hdr *fhdr)
-{
-       static u32 ipv6_fragmentation_id = 1;
-       static DEFINE_SPINLOCK(ip6_id_lock);
-
-       spin_lock_bh(&ip6_id_lock);
-       fhdr->identification = htonl(ipv6_fragmentation_id);
-       if (++ipv6_fragmentation_id == 0)
-               ipv6_fragmentation_id = 1;
-       spin_unlock_bh(&ip6_id_lock);
-}
+extern void ipv6_select_ident(struct frag_hdr *fhdr, struct in6_addr *addr);
 
 /*
  *     Prototypes exported by ipv6
@@ -667,5 +660,4 @@ extern int ipv6_static_sysctl_register(void);
 extern void ipv6_static_sysctl_unregister(void);
 #endif
 
-#endif /* __KERNEL__ */
 #endif /* _NET_IPV6_H */