diff options
| author | Eric Dumazet <edumazet@google.com> | 2020-06-19 12:02:59 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-06-19 13:41:59 -0700 |
| commit | cc7a21b6fbd945f8d8f61422ccd27203c1fafeb7 (patch) | |
| tree | 90d5b4982f3d802d0e3c90f888aa74781bca6f43 /include/linux/icmpv6.h | |
| parent | e9f0809fb91015b85d159dbfdc64f705fda08712 (diff) | |
ipv6: icmp6: avoid indirect call for icmpv6_send()
If IPv6 is builtin, we do not need an expensive indirect call
to reach icmp6_send().
v2: put inline keyword before the type to avoid sparse warnings.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/icmpv6.h')
| -rw-r--r-- | include/linux/icmpv6.h | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/include/linux/icmpv6.h b/include/linux/icmpv6.h index 33d379602314..1b3371ae8193 100644 --- a/include/linux/icmpv6.h +++ b/include/linux/icmpv6.h @@ -13,12 +13,32 @@ static inline struct icmp6hdr *icmp6_hdr(const struct sk_buff *skb) #include <linux/netdevice.h> #if IS_ENABLED(CONFIG_IPV6) -extern void icmpv6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info); typedef void ip6_icmp_send_t(struct sk_buff *skb, u8 type, u8 code, __u32 info, const struct in6_addr *force_saddr); +#if IS_BUILTIN(CONFIG_IPV6) +void icmp6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info, + const struct in6_addr *force_saddr); +static inline void icmpv6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info) +{ + icmp6_send(skb, type, code, info, NULL); +} +static inline int inet6_register_icmp_sender(ip6_icmp_send_t *fn) +{ + BUILD_BUG_ON(fn != icmp6_send); + return 0; +} +static inline int inet6_unregister_icmp_sender(ip6_icmp_send_t *fn) +{ + BUILD_BUG_ON(fn != icmp6_send); + return 0; +} +#else +extern void icmpv6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info); extern int inet6_register_icmp_sender(ip6_icmp_send_t *fn); extern int inet6_unregister_icmp_sender(ip6_icmp_send_t *fn); +#endif + int ip6_err_gen_icmpv6_unreach(struct sk_buff *skb, int nhs, int type, unsigned int data_len); |