xfrm: merge dstopt and routing hdroff functions

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Both functions are very similar, so merge them into one.

The nexthdr is passed as argument to break the loop in the
ROUTING case, this is the only header type where slightly different
rules apply.

While at it, the merged function is realigned with
ip6_find_1stfragopt().  That function received bug fixes for an infinite
loop, but neither dstopt nor rh parsing functions (copy-pasted from
ip6_find_1stfragopt) were changed.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

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Florian Westphal 2021-06-11 12:50:14 +02:00 • committed by Steffen Klassert

parent d1002d2490

commit 3ca5ca83e2

1 changed files with 22 additions and 58 deletions

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net/xfrm/xfrm_output.c

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