svn commit: r345109 - head/sys/compat/linuxkpi/common/include/linux

[Hans Petter Selasky]

Author: hselasky
Date: Wed Mar 13 19:31:33 2019
New Revision: 345109
URL: https://svnweb.freebsd.org/changeset/base/345109

Log:
  Implement sg_virt() function in the LinuxKPI.
  
  Submitted by:		Johannes Lundberg <johalun0 at gmail.com>
  MFC after:		1 week
  Sponsored by:		Limelight Networks
  Sponsored by:		Mellanox Technologies

Modified:
  head/sys/compat/linuxkpi/common/include/linux/scatterlist.h

Modified: head/sys/compat/linuxkpi/common/include/linux/scatterlist.h
==============================================================================
--- head/sys/compat/linuxkpi/common/include/linux/scatterlist.h	Wed Mar 13 19:30:40 2019	(r345108)
+++ head/sys/compat/linuxkpi/common/include/linux/scatterlist.h	Wed Mar 13 19:31:33 2019	(r345109)
@@ -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)