microblaze: switch to RAW_COPY_USER
[kudos to Piotr Sroka for spotting a braino in the previous variant]
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 85885a5..1aff365 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -34,6 +34,7 @@
select TRACING_SUPPORT
select VIRT_TO_BUS
select CPU_NO_EFFICIENT_FFS
+ select ARCH_HAS_RAW_COPY_USER
config SWAP
def_bool n
diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h
index 2c39375..38f2c9c 100644
--- a/arch/microblaze/include/asm/uaccess.h
+++ b/arch/microblaze/include/asm/uaccess.h
@@ -336,39 +336,19 @@ extern long __user_bad(void);
__gu_err; \
})
-
-/* copy_to_from_user */
-#define __copy_from_user(to, from, n) \
- __copy_tofrom_user((__force void __user *)(to), \
- (void __user *)(from), (n))
-#define __copy_from_user_inatomic(to, from, n) \
- __copy_from_user((to), (from), (n))
-
-static inline long copy_from_user(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)
{
- unsigned long res = n;
- might_fault();
- if (likely(access_ok(VERIFY_READ, from, n)))
- res = __copy_from_user(to, from, n);
- if (unlikely(res))
- memset(to + (n - res), 0, res);
- return res;
+ return __copy_tofrom_user((__force void __user *)to, from, n);
}
-#define __copy_to_user(to, from, n) \
- __copy_tofrom_user((void __user *)(to), \
- (__force const void __user *)(from), (n))
-#define __copy_to_user_inatomic(to, from, n) __copy_to_user((to), (from), (n))
-
-static inline long copy_to_user(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)
{
- might_fault();
- if (access_ok(VERIFY_WRITE, to, n))
- return __copy_to_user(to, from, n);
- return n;
+ return __copy_tofrom_user(to, (__force const void __user *)from, n);
}
+#define INLINE_COPY_FROM_USER
+#define INLINE_COPY_TO_USER
/*
* Copy a null terminated string from userspace.