From 5cf422808244ca8f1177c72fe6e1ce8322794b57 Mon Sep 17 00:00:00 2001 From: Andy Zhou Date: Fri, 15 May 2015 14:15:35 -0700 Subject: ipv4: introduce frag_expire_skip_icmp() Improve readability of skip ICMP for de-fragmentation expiration logic. This change will also make the logic easier to maintain when the following patches in this series are applied. Signed-off-by: Andy Zhou Signed-off-by: David S. Miller --- include/net/ip.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include/net/ip.h') diff --git a/include/net/ip.h b/include/net/ip.h index 0ed6d768e606..43f6f39df9fc 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -478,6 +478,16 @@ enum ip_defrag_users { IP_DEFRAG_MACVLAN, }; +/* Return true if the value of 'user' is between 'lower_bond' + * and 'upper_bond' inclusively. + */ +static inline bool ip_defrag_user_in_between(u32 user, + enum ip_defrag_users lower_bond, + enum ip_defrag_users upper_bond) +{ + return user >= lower_bond && user <= upper_bond; +} + int ip_defrag(struct sk_buff *skb, u32 user); #ifdef CONFIG_INET struct sk_buff *ip_check_defrag(struct sk_buff *skb, u32 user); -- cgit v1.2.3