linux-kernel - [PATCH 3.14 03/53] ipmr/ip6mr: Initialize the last assert time of mfc entries.

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Message-Id: <20160725203514.351801874@linuxfoundation.org>
Date:	Mon, 25 Jul 2016 13:54:45 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Tom Goff <thomas.goff@...mit.edu>,
	"David S. Miller" <davem@...emloft.net>
Subject: [PATCH 3.14 03/53] ipmr/ip6mr: Initialize the last assert time of mfc entries.

3.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Tom Goff <thomas.goff@...mit.edu>

[ Upstream commit 70a0dec45174c976c64b4c8c1d0898581f759948 ]

This fixes wrong-interface signaling on 32-bit platforms for entries
created when jiffies > 2^31 + MFC_ASSERT_THRESH.

Signed-off-by: Tom Goff <thomas.goff@...mit.edu>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 net/ipv4/ipmr.c  |    4 +++-
 net/ipv6/ip6mr.c |    1 +
 2 files changed, 4 insertions(+), 1 deletion(-)

--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -883,8 +883,10 @@ static struct mfc_cache *ipmr_cache_allo
 {
 	struct mfc_cache *c = kmem_cache_zalloc(mrt_cachep, GFP_KERNEL);
 
-	if (c)
+	if (c) {
+		c->mfc_un.res.last_assert = jiffies - MFC_ASSERT_THRESH - 1;
 		c->mfc_un.res.minvif = MAXVIFS;
+	}
 	return c;
 }
 
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -1076,6 +1076,7 @@ static struct mfc6_cache *ip6mr_cache_al
 	struct mfc6_cache *c = kmem_cache_zalloc(mrt_cachep, GFP_KERNEL);
 	if (c == NULL)
 		return NULL;
+	c->mfc_un.res.last_assert = jiffies - MFC_ASSERT_THRESH - 1;
 	c->mfc_un.res.minvif = MAXMIFS;
 	return c;
 }