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| author | David Lebrun <david.lebrun@uclouvain.be> | 2017-03-27 12:43:59 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-03-28 02:05:06 +0300 |
| commit | 402a5bc462d47f0b7c9e8a516c124c9c162fe2aa (patch) | |
| tree | d4ea2ef6173924825cbbfb038c0820d78386f229 /net | |
| parent | 656455bf19f6a58e3fc5441a4cdcc8f598979329 (diff) | |
| download | linux-402a5bc462d47f0b7c9e8a516c124c9c162fe2aa.tar.xz | |
ipv6: sr: select DST_CACHE by default
When CONFIG_IPV6_SEG6_LWTUNNEL is selected, automatically select DST_CACHE.
This allows to remove multiple ifdefs.
Signed-off-by: David Lebrun <david.lebrun@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv6/Kconfig | 1 | ||||
| -rw-r--r-- | net/ipv6/seg6_iptunnel.c | 18 |
2 files changed, 1 insertions, 18 deletions
diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig index e2afe677a9d9..48c452959d2c 100644 --- a/net/ipv6/Kconfig +++ b/net/ipv6/Kconfig @@ -307,6 +307,7 @@ config IPV6_SEG6_LWTUNNEL bool "IPv6: Segment Routing Header encapsulation support" depends on IPV6 select LWTUNNEL + select DST_CACHE ---help--- Support for encapsulation of packets within an outer IPv6 header and a Segment Routing Header using the lightweight diff --git a/net/ipv6/seg6_iptunnel.c b/net/ipv6/seg6_iptunnel.c index 30ef1d1d182e..a644aaecdfd3 100644 --- a/net/ipv6/seg6_iptunnel.c +++ b/net/ipv6/seg6_iptunnel.c @@ -26,17 +26,13 @@ #include <linux/seg6_iptunnel.h> #include <net/addrconf.h> #include <net/ip6_route.h> -#ifdef CONFIG_DST_CACHE #include <net/dst_cache.h> -#endif #ifdef CONFIG_IPV6_SEG6_HMAC #include <net/seg6_hmac.h> #endif struct seg6_lwt { -#ifdef CONFIG_DST_CACHE struct dst_cache cache; -#endif struct seg6_iptunnel_encap tuninfo[0]; }; @@ -250,17 +246,14 @@ static int seg6_input(struct sk_buff *skb) slwt = seg6_lwt_lwtunnel(orig_dst->lwtstate); -#ifdef CONFIG_DST_CACHE preempt_disable(); dst = dst_cache_get(&slwt->cache); preempt_enable(); -#endif skb_dst_drop(skb); if (!dst) { ip6_route_input(skb); -#ifdef CONFIG_DST_CACHE dst = skb_dst(skb); if (!dst->error) { preempt_disable(); @@ -268,7 +261,6 @@ static int seg6_input(struct sk_buff *skb) &ipv6_hdr(skb)->saddr); preempt_enable(); } -#endif } else { skb_dst_set(skb, dst); } @@ -289,11 +281,9 @@ static int seg6_output(struct net *net, struct sock *sk, struct sk_buff *skb) slwt = seg6_lwt_lwtunnel(orig_dst->lwtstate); -#ifdef CONFIG_DST_CACHE preempt_disable(); dst = dst_cache_get(&slwt->cache); preempt_enable(); -#endif if (unlikely(!dst)) { struct ipv6hdr *hdr = ipv6_hdr(skb); @@ -312,11 +302,9 @@ static int seg6_output(struct net *net, struct sock *sk, struct sk_buff *skb) goto drop; } -#ifdef CONFIG_DST_CACHE preempt_disable(); dst_cache_set_ip6(&slwt->cache, dst, &fl6.saddr); preempt_enable(); -#endif } skb_dst_drop(skb); @@ -380,13 +368,11 @@ static int seg6_build_state(struct nlattr *nla, slwt = seg6_lwt_lwtunnel(newts); -#ifdef CONFIG_DST_CACHE err = dst_cache_init(&slwt->cache, GFP_KERNEL); if (err) { kfree(newts); return err; } -#endif memcpy(&slwt->tuninfo, tuninfo, tuninfo_len); @@ -400,12 +386,10 @@ static int seg6_build_state(struct nlattr *nla, return 0; } -#ifdef CONFIG_DST_CACHE static void seg6_destroy_state(struct lwtunnel_state *lwt) { dst_cache_destroy(&seg6_lwt_lwtunnel(lwt)->cache); } -#endif static int seg6_fill_encap_info(struct sk_buff *skb, struct lwtunnel_state *lwtstate) @@ -439,9 +423,7 @@ static int seg6_encap_cmp(struct lwtunnel_state *a, struct lwtunnel_state *b) static const struct lwtunnel_encap_ops seg6_iptun_ops = { .build_state = seg6_build_state, -#ifdef CONFIG_DST_CACHE .destroy_state = seg6_destroy_state, -#endif .output = seg6_output, .input = seg6_input, .fill_encap = seg6_fill_encap_info, |