[PATCH] m68k: implement __clear_user()

[Geert Uytterhoeven]

m68k: implement __clear_user(), which is needed by fs/signalfd.c

Since we always let the MMU do all checking, clear_user() and __clear_user()
are identical. The old clear_user() is renamed to __clear_user() for
consistency.

Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
---
 arch/m68k/lib/uaccess.c    |    4 ++--
 include/asm-m68k/uaccess.h |    4 +++-
 2 files changed, 5 insertions(+), 3 deletions(-)

--- a/arch/m68k/lib/uaccess.c
+++ b/arch/m68k/lib/uaccess.c
@@ -181,7 +181,7 @@ EXPORT_SYMBOL(strnlen_user);
  * Zero Userspace
  */
 
-unsigned long clear_user(void __user *to, unsigned long n)
+unsigned long __clear_user(void __user *to, unsigned long n)
 {
 	unsigned long res;
 
@@ -219,4 +219,4 @@ unsigned long clear_user(void __user *to
 
     return res;
 }
-EXPORT_SYMBOL(clear_user);
+EXPORT_SYMBOL(__clear_user);
--- a/include/asm-m68k/uaccess.h
+++ b/include/asm-m68k/uaccess.h
@@ -361,7 +361,9 @@ __constant_copy_to_user(void __user *to,
 
 long strncpy_from_user(char *dst, const char __user *src, long count);
 long strnlen_user(const char __user *src, long n);
-unsigned long clear_user(void __user *to, unsigned long n);
+unsigned long __clear_user(void __user *to, unsigned long n);
+
+#define clear_user	__clear_user
 
 #define strlen_user(str) strnlen_user(str, 32767)
 
Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds
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