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xfrm: prefer secpath_set over secpath_dup

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secpath_set is a wrapper for secpath_dup that will not perform
an allocation if the secpath attached to the skb has a reference count
of one, i.e., it doesn't need to be COW'ed.

Also, secpath_dup doesn't attach the secpath to the skb, it leaves
this to the caller.

Use secpath_set in places that immediately assign the return value to
skb.

This allows to remove skb->sp without touching these spots again.

secpath_dup can eventually be removed in followup patch.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Westphal
2018-12-18 17:15:26 +01:00
committed by David S. Miller
parent a053c86649
commit a84e3f5333
5 changed files with 19 additions and 17 deletions
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net/xfrm/Kconfig
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@@ -5,6 +5,7 @@ config XFRM
bool
depends on NET
select GRO_CELLS
select SKB_EXTENSIONS
config XFRM_OFFLOAD
bool