linuxkpi: Add user_write_access_*

Needed by drm-kmod v5.8

Reviewed by:	bz
MFC after:	2 weeks
Sponsored by:	Beckhoff Automation GmbH & Co. KG
Differential Revision:	https://reviews.freebsd.org/D34284

(cherry picked from commit 4f689b302fc49fc11d19169386f6ccfad05f47dd)

diff --git a/sys/compat/linuxkpi/common/include/asm/uaccess.h b/sys/compat/linuxkpi/common/include/asm/uaccess.h
index 6994b48d071e37aeda93c6e8d956f69fdf0141ac..b3b2cb53d22a08e5425a24c8a7c577cbfb7cd682 100644 (file)
--- a/sys/compat/linuxkpi/common/include/asm/uaccess.h
+++ b/sys/compat/linuxkpi/common/include/asm/uaccess.h
@@ -55,6 +55,9 @@ copy_from_user(void *to, const void *from, unsigned long n)
 #define        user_access_begin(ptr, len) access_ok(ptr, len)
 #define        user_access_end() do { } while (0)
 
+#define        user_write_access_begin(ptr, len) access_ok(ptr, len)
+#define        user_write_access_end() do { } while (0)
+
 #define        unsafe_get_user(x, ptr, err) do { \
        if (unlikely(__get_user(x, ptr))) \
                goto err; \