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nios2: use generic strncpy_from_user() and strnlen_user()

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This change enables the generic strncpy_from_user() and strnlen_user()

Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
This commit is contained in:
Ley Foon Tan 2017-05-08 17:14:14 +08:00
parent edebea9877
commit 7f1e614113
3 changed files with 7 additions and 35 deletions
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7
arch/nios2/include/asm/uaccess.h
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@ -42,6 +42,8 @@
# define __EX_TABLE_SECTION ".section __ex_table,\"a\"\n"
#define user_addr_max() (uaccess_kernel() ? ~0UL : TASK_SIZE)
/*
* Zero Userspace
*/
@ -81,8 +83,9 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long n);
#define INLINE_COPY_TO_USER
extern long strncpy_from_user(char *__to, const char __user *__from,
long __len);
extern long strnlen_user(const char __user *s, long n);
long __len);
extern __must_check long strlen_user(const char __user *str);
extern __must_check long strnlen_user(const char __user *s, long n);
/* Optimized macros */
#define __get_user_asm(val, insn, addr, err) \