LU-13488 kernel: new kernel [RHEL 8.2 4.18.0-193.1.2.el8]

[fs/lustre-release.git] / lnet / autoconf / lustre-lnet.m4

diff --git a/lnet/autoconf/lustre-lnet.m4 b/lnet/autoconf/lustre-lnet.m4
index 139ce1c..318036b 100644 (file)
--- a/lnet/autoconf/lustre-lnet.m4
+++ b/lnet/autoconf/lustre-lnet.m4
@@ -704,6 +704,33 @@ EXTRA_KCFLAGS="$tmp_flags"
 ]) # LN_CONFIG_SOCK_GETNAME
 
 #
+# LN_HAVE_IN_DEV_FOR_EACH_IFA_RTNL
+#
+# kernel 5.3 commit ef11db3310e272d3d8dbe8739e0770820dd20e52
+# and kernel 4.18.0-193.el8:
+# added in_dev_for_each_ifa_rtnl and in_dev_for_each_ifa_rcu
+# and removed for_ifa and endfor_ifa.
+# Use the _rntl variant as the current locking is rtnl.
+#
+AC_DEFUN([LN_HAVE_IN_DEV_FOR_EACH_IFA_RTNL], [
+tmp_flags="$EXTRA_KCFLAGS"
+EXTRA_KCFLAGS="-Werror"
+LB_CHECK_COMPILE([if 'in_dev_for_each_ifa_rtnl' is defined],
+in_dev_for_each_ifa_rtnl_test, [
+       #include <linux/inetdevice.h>
+],[
+       const struct in_ifaddr *ifa = NULL;
+       struct in_device *in_dev = NULL;
+
+       in_dev_for_each_ifa_rtnl(ifa, in_dev) {}
+],[
+       AC_DEFINE(HAVE_IN_DEV_FOR_EACH_IFA_RTNL, 1,
+               ['in_dev_for_each_ifa_rtnl' is defined])
+])
+EXTRA_KCFLAGS="$tmp_flags"
+]) # LN_HAVE_IN_DEV_FOR_EACH_IFA_RTNL
+
+#
 # LN_IB_DEVICE_OPS_EXISTS
 #
 # kernel 5.0 commit 521ed0d92ab0db3edd17a5f4716b7f698f4fce61
@@ -798,6 +825,8 @@ LN_HAVE_HYPERVISOR_IS_TYPE
 LN_HAVE_ORACLE_OFED_EXTENSIONS
 # 4.17
 LN_CONFIG_SOCK_GETNAME
+# 5.3 and 4.18.0-193.el8
+LN_HAVE_IN_DEV_FOR_EACH_IFA_RTNL
 ]) # LN_PROG_LINUX
 
 #