From 33bf7b29e06c21871dce38c8405c9d6bb899f32c Mon Sep 17 00:00:00 2001
From: Vladimir Sokolovsky <vlad@mellanox.com>
Date: Tue, 20 Aug 2019 16:54:46 -0500
Subject: [PATCH] rdma.m4: Added macros to support 5.3 backports

Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.com>
---
 config/rdma.m4 | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)

diff --git a/config/rdma.m4 b/config/rdma.m4
index 43581da..480d455 100644
--- a/config/rdma.m4
+++ b/config/rdma.m4
@@ -8747,6 +8747,66 @@ AC_DEFUN([LINUX_CONFIG_COMPAT],
 	],[
 		AC_MSG_RESULT(no)
 	])
+	AC_MSG_CHECKING([if struct mm_struct has member atomic_pinned_vm])
+	LB_LINUX_TRY_COMPILE([
+		#include <linux/mm_types.h>
+	],[
+		struct mm_struct x;
+                atomic64_t y;
+		x.pinned_vm = y;
+
+		return 0;
+	],[
+		AC_MSG_RESULT(yes)
+		AC_DEFINE(HAVE_ATOMIC_PINNED_VM, 1,
+			  [atomic_pinned_vm is defined])
+	],[
+		AC_MSG_RESULT(no)
+	])
+
+	AC_MSG_CHECKING([if net/ipv6_stubs.h exists])
+	LB_LINUX_TRY_COMPILE([
+                #include <net/ipv6_stubs.h>
+	],[
+		return 0;
+	],[
+		AC_MSG_RESULT(yes)
+		AC_DEFINE(HAVE_IPV6_STUBS, 1,
+			  [net/ipv6_stubs.h exists])
+	],[
+		AC_MSG_RESULT(no)
+	])
+
+	AC_MSG_CHECKING([if netlink.h has nla_parse_deprecated ])
+	LB_LINUX_TRY_COMPILE([
+		#include <net/netlink.h>
+	],[
+		nla_parse_deprecated(NULL, 0, NULL, 0, NULL, NULL);
+
+		return 0;
+	],[
+		AC_MSG_RESULT(yes)
+		AC_DEFINE(HAVE_NLA_PARSE_DEPRECATED, 1,
+			  [nla_parse_deprecated exist])
+	],[
+		AC_MSG_RESULT(no)
+	])
+
+	AC_MSG_CHECKING([if xarray is defined])
+	LB_LINUX_TRY_COMPILE([
+		#include <linux/xarray.h>
+	],[
+                struct xa_limit x;
+
+		return 0;
+	],[
+		AC_MSG_RESULT(yes)
+		AC_DEFINE(HAVE_XARRAY, 1,
+			  [xa_array is defined])
+	],[
+		AC_MSG_RESULT(no)
+	])
+
 ])
 #
 # COMPAT_CONFIG_HEADERS
-- 
2.46.0