lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ipv6: Refactor update of IPv6 flowi destination address for srcrt (RH) option

Browse Source 
There are more than a dozen occurrences of following code in the
IPv6 stack:

    if (opt && opt->srcrt) {
            struct rt0_hdr *rt0 = (struct rt0_hdr *) opt->srcrt;
            ipv6_addr_copy(&final, &fl.fl6_dst);
            ipv6_addr_copy(&fl.fl6_dst, rt0->addr);
            final_p = &final;
    }

Replace those with a helper. Note that the helper overrides final_p
in all cases. This is ok as final_p was previously initialized to
NULL when declared.

Signed-off-by: Arnaud Ebalard <arno@natisbad.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnaud Ebalard
2010-06-01 21:35:01 +00:00
committed by David S. Miller
parent d92222e27f
commit 20c59de2e6
10 changed files with 55 additions and 96 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
net/ipv6/inet6_connection_sock.c
View File

@ -185,7 +185,7 @@ int inet6_csk_xmit(struct sk_buff *skb)
struct ipv6_pinfo *np = inet6_sk(sk);
struct flowi fl;
struct dst_entry *dst;
struct in6_addr *final_p = NULL, final;
struct in6_addr *final_p, final;
memset(&fl, 0, sizeof(fl));
fl.proto = sk->sk_protocol;
@ -199,12 +199,7 @@ int inet6_csk_xmit(struct sk_buff *skb)
fl.fl_ip_dport = inet->inet_dport;
security_sk_classify_flow(sk, &fl);
if (np->opt && np->opt->srcrt) {
struct rt0_hdr *rt0 = (struct rt0_hdr *)np->opt->srcrt;
ipv6_addr_copy(&final, &fl.fl6_dst);
ipv6_addr_copy(&fl.fl6_dst, rt0->addr);
final_p = &final;
}
final_p = fl6_update_dst(&fl, np->opt, &final);
dst = __inet6_csk_dst_check(sk, np->dst_cookie);