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| author | Arnaud Ebalard <arno@natisbad.org> | 2010-06-01 21:35:01 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-06-02 07:08:31 -0700 |
| commit | 20c59de2e6b6bc74bbf714dcd4e720afe8d516cf (patch) | |
| tree | 45e5c62e286368f8259b844cb7cf796d19066fb0 /net/ipv6/udp.c | |
| parent | d92222e27fdc98d73df25f3d49fb1ff3a3369bec (diff) | |
| download | kernel_samsung_smdk4412-20c59de2e6b6bc74bbf714dcd4e720afe8d516cf.zip kernel_samsung_smdk4412-20c59de2e6b6bc74bbf714dcd4e720afe8d516cf.tar.gz kernel_samsung_smdk4412-20c59de2e6b6bc74bbf714dcd4e720afe8d516cf.tar.bz2 | |
ipv6: Refactor update of IPv6 flowi destination address for srcrt (RH) option
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>
Diffstat (limited to 'net/ipv6/udp.c')
| -rw-r--r-- | net/ipv6/udp.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 3048f90..4aea57d 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -929,7 +929,7 @@ int udpv6_sendmsg(struct kiocb *iocb, struct sock *sk, struct inet_sock *inet = inet_sk(sk); struct ipv6_pinfo *np = inet6_sk(sk); struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) msg->msg_name; - struct in6_addr *daddr, *final_p = NULL, final; + struct in6_addr *daddr, *final_p, final; struct ipv6_txoptions *opt = NULL; struct ip6_flowlabel *flowlabel = NULL; struct flowi fl; @@ -1099,14 +1099,9 @@ do_udp_sendmsg: ipv6_addr_copy(&fl.fl6_src, &np->saddr); fl.fl_ip_sport = inet->inet_sport; - /* merge ip6_build_xmit from ip6_output */ - 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; + final_p = fl6_update_dst(&fl, opt, &final); + if (final_p) connected = 0; - } if (!fl.oif && ipv6_addr_is_multicast(&fl.fl6_dst)) { fl.oif = np->mcast_oif; |