svn commit: r345939 - stable/11/sys/compat/linuxkpi/common/include/linux

[Hans Petter Selasky]

Author: hselasky
Date: Fri Apr  5 11:32:57 2019
New Revision: 345939
URL: https://svnweb.freebsd.org/changeset/base/345939

Log:
  MFC r345109:
  Implement sg_virt() function in the LinuxKPI.
  
  Submitted by:		Johannes Lundberg <johalun0 at gmail.com>
  Sponsored by:		Limelight Networks
  Sponsored by:		Mellanox Technologies

Modified:
  stable/11/sys/compat/linuxkpi/common/include/linux/scatterlist.h
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/sys/compat/linuxkpi/common/include/linux/scatterlist.h
==============================================================================
--- stable/11/sys/compat/linuxkpi/common/include/linux/scatterlist.h	Fri Apr  5 11:31:52 2019	(r345938)
+++ stable/11/sys/compat/linuxkpi/common/include/linux/scatterlist.h	Fri Apr  5 11:32:57 2019	(r345939)
@@ -137,6 +137,13 @@ sg_phys(struct scatterlist *sg)
 	return (VM_PAGE_TO_PHYS(sg_page(sg)) + sg->offset);
 }
 
+static inline void *
+sg_virt(struct scatterlist *sg)
+{
+
+	return ((void *)((unsigned long)page_address(sg_page(sg)) + sg->offset));
+}
+
 static inline void
 sg_chain(struct scatterlist *prv, unsigned int prv_nents,
     struct scatterlist *sgl)