mn10300: switch to RAW_COPY_USER
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index 38e3494..a96f3dc 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -16,6 +16,7 @@
select OLD_SIGACTION
select HAVE_DEBUG_STACKOVERFLOW
select ARCH_NO_COHERENT_DMA_MMAP
+ select ARCH_HAS_RAW_COPY_USER
config AM33_2
def_bool n
diff --git a/arch/mn10300/include/asm/uaccess.h b/arch/mn10300/include/asm/uaccess.h
index 1c35be3..c696647 100644
--- a/arch/mn10300/include/asm/uaccess.h
+++ b/arch/mn10300/include/asm/uaccess.h
@@ -275,49 +275,20 @@
} \
} while (0)
-/* We let the __ versions of copy_from/to_user inline, because they're often
- * used in fast paths and have only a small space overhead.
- */
-static inline
-unsigned long __copy_from_user_inatomic(void *to, const void __user *from,
- unsigned long n)
+static inline unsigned long
+raw_copy_from_user(void *to, const void __user *from, unsigned long n)
{
__copy_user(to, from, n);
return n;
}
-static inline
-unsigned long __copy_to_user_inatomic(void __user *to, const void *from,
- unsigned long n)
+static inline unsigned long
+raw_copy_to_user(void __user *to, const void *from, unsigned long n)
{
__copy_user(to, from, n);
return n;
}
-
-extern unsigned long __generic_copy_to_user(void __user *, const void *,
- unsigned long);
-extern unsigned long __generic_copy_from_user(void *, const void __user *,
- unsigned long);
-
-static inline unsigned long __copy_to_user(void __user *to, const void *from,
- unsigned long n)
-{
- might_fault();
- return __copy_to_user_inatomic(to, from, n);
-}
-
-static inline unsigned long __copy_from_user(void *to, const void __user *from,
- unsigned long n)
-{
- might_fault();
- return __copy_from_user_inatomic(to, from, n);
-}
-
-
-#define copy_to_user(to, from, n) __generic_copy_to_user((to), (from), (n))
-#define copy_from_user(to, from, n) __generic_copy_from_user((to), (from), (n))
-
extern long strncpy_from_user(char *dst, const char __user *src, long count);
extern long __strncpy_from_user(char *dst, const char __user *src, long count);
extern long strnlen_user(const char __user *str, long n);
diff --git a/arch/mn10300/kernel/mn10300_ksyms.c b/arch/mn10300/kernel/mn10300_ksyms.c
index ec6c4f8..5e9f919 100644
--- a/arch/mn10300/kernel/mn10300_ksyms.c
+++ b/arch/mn10300/kernel/mn10300_ksyms.c
@@ -26,8 +26,6 @@
EXPORT_SYMBOL(__strncpy_from_user);
EXPORT_SYMBOL(clear_user);
EXPORT_SYMBOL(__clear_user);
-EXPORT_SYMBOL(__generic_copy_from_user);
-EXPORT_SYMBOL(__generic_copy_to_user);
EXPORT_SYMBOL(strnlen_user);
extern u64 __ashrdi3(u64, unsigned);
diff --git a/arch/mn10300/lib/usercopy.c b/arch/mn10300/lib/usercopy.c
index b48af8d..cece179 100644
--- a/arch/mn10300/lib/usercopy.c
+++ b/arch/mn10300/lib/usercopy.c
@@ -11,25 +11,6 @@
*/
#include <linux/uaccess.h>
-unsigned long
-__generic_copy_to_user(void *to, const void *from, unsigned long n)
-{
- if (access_ok(VERIFY_WRITE, to, n))
- __copy_user(to, from, n);
- return n;
-}
-
-unsigned long
-__generic_copy_from_user(void *to, const void *from, unsigned long n)
-{
- unsigned long res = n;
- if (access_ok(VERIFY_READ, from, res))
- __copy_user(to, from, res);
- if (unlikely(res))
- memset(to + n - res, 0, res);
- return res;
-}
-
/*
* Copy a null terminated string from userspace.
*/