From f87083ee9cf7417a76105f26ef705426cc551e3b Mon Sep 17 00:00:00 2001
From: WANG Cong <xiyou.wangcong@gmail.com>
Date: Mon, 3 Nov 2014 17:35:30 +0100
Subject: net: use the new API kvfree()

It is available since v3.15-rc5.

Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 configure.ac | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 8fdac15..10529af 100644
--- a/configure.ac
+++ b/configure.ac
@@ -323,6 +323,16 @@ else
 	AC_SUBST(HAVE_RBTREE_POSTORDER_FOR_EACH_ENTRY_SAFE, undef)
 fi
 
+AC_MSG_CHECKING([kernel source for kvfree])
+if test -f $ksourcedir/include/linux/mm.h && \
+   $GREP -q 'kvfree' $ksourcedir/include/linux/mm.h; then
+	AC_MSG_RESULT(yes)
+	AC_SUBST(HAVE_KVFREE, define)
+else
+	AC_MSG_RESULT(no)
+	AC_SUBST(HAVE_KVFREE, undef)
+fi
+
 AC_MSG_CHECKING([kernel source for struct net_generic])
 if test -f $ksourcedir/include/net/netns/generic.h && \
    $GREP -q 'struct net_generic' $ksourcedir/include/net/netns/generic.h; then
-- 
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