From: Li RongQing <roy.qing.li@gmail.com>
Date: Wed, 22 Apr 2015 09:09:54 +0000 (+0800)
Subject: xfrm: optimise the use of walk list header in xfrm_policy/state_walk
X-Git-Tag: omap-for-v4.2/fixes-rc1^2~134^2~192^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=800777026eeb33585f29608c2c6131fc66d2e218;p=pandora-kernel.git

xfrm: optimise the use of walk list header in xfrm_policy/state_walk

The walk from input is the list header, and marked as dead, and will
be skipped in loop.

list_first_entry() can be used to return the true usable value from
walk if walk is not empty

Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---

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