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seg6: factor out End lookup nexthop processing to a dedicated function

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The End nexthop lookup/input operations are moved into a new helper
function named input_action_end_finish(). This avoids duplicating the
code needed to compute the nexthop in the different flavors of the End
behavior.

Signed-off-by: Andrea Mayer <andrea.mayer@uniroma2.it>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Andrea Mayer 2023-02-15 14:46:57 +01:00 committed by Paolo Abeni
parent f5b12be342
commit 525c65ff56
1 changed files with 10 additions and 6 deletions
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16
net/ipv6/seg6_local.c
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@ -364,6 +364,14 @@ static void seg6_next_csid_advance_arg(struct in6_addr *addr,
memset(&addr->s6_addr[16 - fnc_octects], 0x00, fnc_octects);
}
static int input_action_end_finish(struct sk_buff *skb,
struct seg6_local_lwt *slwt)
{
seg6_lookup_nexthop(skb, NULL, 0);
return dst_input(skb);
}
static int input_action_end_core(struct sk_buff *skb,
struct seg6_local_lwt *slwt)
{
@ -375,9 +383,7 @@ static int input_action_end_core(struct sk_buff *skb,
advance_nextseg(srh, &ipv6_hdr(skb)->daddr);
seg6_lookup_nexthop(skb, NULL, 0);
return dst_input(skb);
return input_action_end_finish(skb, slwt);
drop:
kfree_skb(skb);
@ -395,9 +401,7 @@ static int end_next_csid_core(struct sk_buff *skb, struct seg6_local_lwt *slwt)
/* update DA */
seg6_next_csid_advance_arg(daddr, finfo);
seg6_lookup_nexthop(skb, NULL, 0);
return dst_input(skb);
return input_action_end_finish(skb, slwt);
}
static bool seg6_next_csid_enabled(__u32 fops)