[src/trunk]: src/sys/external/bsd/drm2/include/asm Safe unsafe uaccess stubs.

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/9f9ef0d526f9
branches:  trunk
changeset: 1028018:9f9ef0d526f9
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Sun Dec 19 01:39:41 2021 +0000

description:
Safe unsafe uaccess stubs.

diffstat:

 sys/external/bsd/drm2/include/asm/uaccess.h |  13 ++++++++++++-
 1 files changed, 12 insertions(+), 1 deletions(-)

diffs (27 lines):

diff -r 232723e8c65a -r 9f9ef0d526f9 sys/external/bsd/drm2/include/asm/uaccess.h
--- a/sys/external/bsd/drm2/include/asm/uaccess.h       Sun Dec 19 01:39:34 2021 +0000
+++ b/sys/external/bsd/drm2/include/asm/uaccess.h       Sun Dec 19 01:39:41 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: uaccess.h,v 1.5 2021/12/19 00:55:01 riastradh Exp $    */
+/*     $NetBSD: uaccess.h,v 1.6 2021/12/19 01:39:41 riastradh Exp $    */
 
 /*-
  * Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -72,6 +72,17 @@
        copy_to_user((USER_PTR), &__put_user_tmp, sizeof(__put_user_tmp));    \
 })
 
+#define        __get_user      get_user
+#define        __put_user      put_user
+
+#define        user_access_begin()     __nothing
+#define        user_access_end()       __nothing
+
+#define        unsafe_put_user(KERNEL_RVAL, USER_PTR, LABEL)   do {                  \
+       if (__put_user(KERNEL_RVAL, USER_PTR))                                \
+               goto LABEL;                                                   \
+} while (0)
+
 static inline size_t
 clear_user(void __user *user_ptr, size_t size)
 {