Author: hselasky
Date: Tue Jan 26 14:21:30 2016
New Revision: 294825
URL: https://svnweb.freebsd.org/changeset/base/294825
Log:
Define __get_user() and __put_user() for the LinuxKPI.
MFC after: 1 week
Sponsored by: Mellanox Technologies
Modified:
head/sys/compat/linuxkpi/common/include/linux/uaccess.h
Modified: head/sys/compat/linuxkpi/common/include/linux/uaccess.h
==============================================================================
--- head/sys/compat/linuxkpi/common/include/linux/uaccess.h Tue Jan 26
14:20:25 2016 (r294824)
+++ head/sys/compat/linuxkpi/common/include/linux/uaccess.h Tue Jan 26
14:21:30 2016 (r294825)
@@ -2,7 +2,7 @@
* Copyright (c) 2010 Isilon Systems, Inc.
* Copyright (c) 2010 iX Systems, Inc.
* Copyright (c) 2010 Panasas, Inc.
- * Copyright (c) 2013-2015 Mellanox Technologies, Ltd.
+ * Copyright (c) 2013-2016 Mellanox Technologies, Ltd.
* Copyright (c) 2015 François Tigeot
* All rights reserved.
*
@@ -34,6 +34,17 @@
#include <linux/compiler.h>
+#define __get_user(_x, _p) ({ \
+ int __err; \
+ __typeof(*(_p)) __x; \
+ __err = -copyin((_p), &(__x), sizeof(*(_p))); \
+ (_x) = __x; \
+ __err; \
+})
+#define __put_user(_x, _p) ({ \
+ __typeof(*(_p)) __x = (_x); \
+ -copyout(&(__x), (_p), sizeof(*(_p))); \
+})
#define get_user(_x, _p) -copyin((_p), &(_x), sizeof(*(_p)))
#define put_user(_x, _p) -copyout(&(_x), (_p), sizeof(*(_p)))
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