Commit 4e3f5d72 authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

inet: constify ip_dont_fragment() arguments 



ip_dont_fragment() can accept const socket and dst

Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 30d50c61

include/net/ip.h

+5 −3
Original line number Diff line number Diff line
@@ -282,10 +282,12 @@ int ip_decrease_ttl(struct iphdr *iph) 
}



static inline

int ip_dont_fragment(struct sock *sk, struct dst_entry *dst)

int ip_dont_fragment(const struct sock *sk, const struct dst_entry *dst)

{

	return  inet_sk(sk)->pmtudisc == IP_PMTUDISC_DO ||

		(inet_sk(sk)->pmtudisc == IP_PMTUDISC_WANT &&

	u8 pmtudisc = READ_ONCE(inet_sk(sk)->pmtudisc);



	return  pmtudisc == IP_PMTUDISC_DO ||

		(pmtudisc == IP_PMTUDISC_WANT &&

		 !(dst_metric_locked(dst, RTAX_MTU)));

}