patch-2.1.68 linux/include/asm-alpha/uaccess.h

• Lines: 38
• Date: Sun Nov 30 10:59:03 1997
• Orig file: v2.1.67/linux/include/asm-alpha/uaccess.h
• Orig date: Sun Sep 7 13:10:43 1997

diff -u --recursive --new-file v2.1.67/linux/include/asm-alpha/uaccess.h linux/include/asm-alpha/uaccess.h
@@ -412,7 +412,19 @@
 	return retval; \
 })
 
-extern void __clear_user(void);
+extern void __do_clear_user(void);
+
+#define __clear_user(to,n)						\
+({									\
+	register void * __cl_to __asm__("$6") = (to);			\
+	register long __cl_len __asm__("$0") = (n);			\
+	__asm__ __volatile__(						\
+		"jsr $28,(%2),__do_clear_user"				\
+		: "=r"(__cl_len), "=r"(__cl_to)				\
+		: "r"(__do_clear_user), "0"(__cl_len), "1"(__cl_to)	\
+		: "$1","$2","$3","$4","$5","$28","memory");		\
+	__cl_len;							\
+})
 
 #define clear_user(to,n)						\
 ({									\
@@ -420,14 +432,13 @@
 	register long __cl_len __asm__("$0") = (n);			\
 	if (__access_ok(((long)__cl_to),__cl_len,__access_mask)) {	\
 		__asm__ __volatile__(					\
-			"jsr $28,(%2),__clear_user"			\
+			"jsr $28,(%2),__do_clear_user"			\
 			: "=r"(__cl_len), "=r"(__cl_to)			\
-			: "r"(__clear_user), "0"(__cl_len), "1"(__cl_to)\
+			: "r"(__do_clear_user), "0"(__cl_len), "1"(__cl_to)\
 			: "$1","$2","$3","$4","$5","$28","memory");	\
 	}								\
 	__cl_len;							\
 })
-
 
 /* Returns: -EFAULT if exception before terminator, N if the entire
    buffer filled, else strlen.  */