From 5a85f399c887f20cb0c03f693075571629d8fb31 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Sat, 13 Apr 2019 22:55:58 +0000
Subject: [PATCH] scst/include/backport.h: Backport wwn_to_u64()

git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8192 d57e44dd-8a1f-0410-8b47-8ef2f437770f
---
 scst/include/backport.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/scst/include/backport.h b/scst/include/backport.h
index e05627e85..c5e59c07b 100644
--- a/scst/include/backport.h
+++ b/scst/include/backport.h
@@ -1615,6 +1615,10 @@ enum {
 };
 #endif
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 2, 0)
+#define wwn_to_u64(wwn) get_unaligned_be64(wwn)
+#endif
+
 /* <target/target_core_base.h> */
 
 #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 19, 0)