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Date: Sun, 22 Dec 2019 10:51:12 +0800 From: Hangbin Liu <liuhangbin@...il.com> To: netdev@...r.kernel.org Cc: Julian Anastasov <ja@....bg>, Marcelo Ricardo Leitner <marcelo.leitner@...il.com>, David Ahern <dsahern@...il.com>, Eric Dumazet <edumazet@...gle.com>, Guillaume Nault <gnault@...hat.com>, David Miller <davem@...emloft.net>, Pablo Neira <pablo@...filter.org>, Stephen Hemminger <stephen@...workplumber.org>, Alexey Kodanev <alexey.kodanev@...cle.com>, Hangbin Liu <liuhangbin@...il.com> Subject: [PATCHv5 net 4/8] net/dst: add new function skb_dst_update_pmtu_no_confirm Add a new function skb_dst_update_pmtu_no_confirm() for callers who need update pmtu but should not do neighbor confirm. v5: No change. v4: No change. v3: Do not remove dst_confirm_neigh, but add a new bool parameter in dst_ops.update_pmtu to control whether we should do neighbor confirm. Also split the big patch to small ones for each area. v2: Remove dst_confirm_neigh in __ip6_rt_update_pmtu. Reviewed-by: Guillaume Nault <gnault@...hat.com> Acked-by: David Ahern <dsahern@...il.com> Signed-off-by: Hangbin Liu <liuhangbin@...il.com> --- include/net/dst.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/net/dst.h b/include/net/dst.h index 593630e0e076..dc7cc1f1051c 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -519,6 +519,15 @@ static inline void skb_dst_update_pmtu(struct sk_buff *skb, u32 mtu) dst->ops->update_pmtu(dst, NULL, skb, mtu, true); } +/* update dst pmtu but not do neighbor confirm */ +static inline void skb_dst_update_pmtu_no_confirm(struct sk_buff *skb, u32 mtu) +{ + struct dst_entry *dst = skb_dst(skb); + + if (dst && dst->ops->update_pmtu) + dst->ops->update_pmtu(dst, NULL, skb, mtu, false); +} + static inline void skb_tunnel_check_pmtu(struct sk_buff *skb, struct dst_entry *encap_dst, int headroom) -- 2.19.2
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