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m68k: Use generic strncpy_from_user(), strlen_user(), and strnlen_user()

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Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
This commit is contained in:
Geert Uytterhoeven
2012-05-29 23:30:08 +02:00
parent f8f5701bda
commit d8ce7263e1
4 changed files with 11 additions and 78 deletions
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2
arch/m68k/include/asm/Kbuild
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@@ -1,2 +1,4 @@
include include/asm-generic/Kbuild.asm
header-y += cachectl.h
generic-y += word-at-a-time.h

11
arch/m68k/include/asm/uaccess_mm.h
View File

@@ -379,12 +379,15 @@ __constant_copy_to_user(void __user *to, const void *from, unsigned long n)
#define copy_from_user(to, from, n) __copy_from_user(to, from, n)
#define copy_to_user(to, from, n) __copy_to_user(to, from, n)
long strncpy_from_user(char *dst, const char __user *src, long count);
long strnlen_user(const char __user *src, long n);
#define user_addr_max() \
(segment_eq(get_fs(), USER_DS) ? TASK_SIZE : ~0UL)
extern long strncpy_from_user(char *dst, const char __user *src, long count);
extern __must_check long strlen_user(const char __user *str);
extern __must_check long strnlen_user(const char __user *str, 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)
#endif /* _M68K_UACCESS_H */