From d2bf22865663c260c9eb4ca2cba63dbac9e258f9 Mon Sep 17 00:00:00 2001 From: Jozsef Kadlecsik Date: Fri, 1 Nov 2019 15:40:33 +0100 Subject: Fix compatibility support for netlink extended ACK and add synchronize_rcu_bh() checking --- configure.ac | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'configure.ac') diff --git a/configure.ac b/configure.ac index 75f43c7..5a0f18a 100644 --- a/configure.ac +++ b/configure.ac @@ -581,7 +581,7 @@ fi AC_MSG_CHECKING([kernel source for netlink extended ACK]) if test -f $ksourcedir/include/linux/netlink.h && \ - $AWK '/^extern void netlink_ack\(/,/\)/' $ksourcedir/include/linux/netlink.h | $GREP -q 'const struct netlink_ext_ack'; then + $AWK '/void netlink_ack\(/,/\)/' $ksourcedir/include/linux/netlink.h | $GREP -q 'const struct netlink_ext_ack'; then AC_MSG_RESULT(yes) AC_SUBST(HAVE_NETLINK_EXTENDED_ACK, define) else @@ -649,6 +649,17 @@ else AC_SUBST(HAVE_STRSCPY, undef) fi +AC_MSG_CHECKING([kernel source for synchronize_rcu_bh() in rcutiny.h and rcupdate.h]) +if test -f $ksourcedir/include/linux/rcupdate.h && \ + $GREP -q 'static inline void synchronize_rcu_bh' \ + $ksourcedir/include/linux/rcutiny.h $ksourcedir/include/linux/rcupdate.h; then + AC_MSG_RESULT(yes) + AC_SUBST(HAVE_SYNCHRONIZE_RCU_BH, define) +else + AC_MSG_RESULT(no) + AC_SUBST(HAVE_SYNCHRONIZE_RCU_BH, 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 -- cgit v1.2.3