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ipv4: Create and use route lookup helpers.

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The idea here is this minimizes the number of places one has to edit
in order to make changes to how flows are defined and used.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2011-03-12 00:00:52 -05:00
parent 1561747ddf
commit 78fbfd8a65
23 changed files with 204 additions and 324 deletions
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16
drivers/net/cnic.c
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@@ -3407,20 +3407,14 @@ static int cnic_get_v4_route(struct sockaddr_in *dst_addr,
struct dst_entry **dst)
{
#if defined(CONFIG_INET)
struct flowi fl;
int err;
struct rtable *rt;
memset(&fl, 0, sizeof(fl));
fl.nl_u.ip4_u.daddr = dst_addr->sin_addr.s_addr;
rt = ip_route_output_key(&init_net, &fl);
err = 0;
if (!IS_ERR(rt))
rt = ip_route_output(&init_net, dst_addr->sin_addr.s_addr, 0, 0, 0);
if (!IS_ERR(rt)) {
*dst = &rt->dst;
else
err = PTR_ERR(rt);
return err;
return 0;
}
return PTR_ERR(rt);
#else
return -ENETUNREACH;
#endif