Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754433Ab2JGXW4 (ORCPT ); Sun, 7 Oct 2012 19:22:56 -0400 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:38365 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753943Ab2JGXWd (ORCPT ); Sun, 7 Oct 2012 19:22:33 -0400 Message-Id: <20121007225846.047918957@decadent.org.uk> User-Agent: quilt/0.60-1 Date: Sun, 07 Oct 2012 23:59:56 +0100 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Mathias Krause , Steffen Klassert , "David S. Miller" Subject: [ 082/108] xfrm_user: dont copy esn replay window twice for new states In-Reply-To: <20121007225834.673681075@decadent.org.uk> X-SA-Exim-Connect-IP: 2001:470:1f08:1539:21c:bfff:fe03:f805 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2234 Lines: 63 3.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mathias Krause [ Upstream commit e3ac104d41a97b42316915020ba228c505447d21 ] The ESN replay window was already fully initialized in xfrm_alloc_replay_state_esn(). No need to copy it again. Cc: Steffen Klassert Signed-off-by: Mathias Krause Acked-by: Steffen Klassert Signed-off-by: David S. Miller Signed-off-by: Ben Hutchings --- net/xfrm/xfrm_user.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 8f916a7..28e4f751 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -442,10 +442,11 @@ static void copy_from_user_state(struct xfrm_state *x, struct xfrm_usersa_info * * somehow made shareable and move it to xfrm_state.c - JHS * */ -static void xfrm_update_ae_params(struct xfrm_state *x, struct nlattr **attrs) +static void xfrm_update_ae_params(struct xfrm_state *x, struct nlattr **attrs, + int update_esn) { struct nlattr *rp = attrs[XFRMA_REPLAY_VAL]; - struct nlattr *re = attrs[XFRMA_REPLAY_ESN_VAL]; + struct nlattr *re = update_esn ? attrs[XFRMA_REPLAY_ESN_VAL] : NULL; struct nlattr *lt = attrs[XFRMA_LTIME_VAL]; struct nlattr *et = attrs[XFRMA_ETIMER_THRESH]; struct nlattr *rt = attrs[XFRMA_REPLAY_THRESH]; @@ -555,7 +556,7 @@ static struct xfrm_state *xfrm_state_construct(struct net *net, goto error; /* override default values from above */ - xfrm_update_ae_params(x, attrs); + xfrm_update_ae_params(x, attrs, 0); return x; @@ -1801,7 +1802,7 @@ static int xfrm_new_ae(struct sk_buff *skb, struct nlmsghdr *nlh, goto out; spin_lock_bh(&x->lock); - xfrm_update_ae_params(x, attrs); + xfrm_update_ae_params(x, attrs, 1); spin_unlock_bh(&x->lock); c.event = nlh->nlmsg_type; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/