diff options
Diffstat (limited to 'arch/xtensa/include/asm/uaccess.h')
| -rw-r--r-- | arch/xtensa/include/asm/uaccess.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/xtensa/include/asm/uaccess.h b/arch/xtensa/include/asm/uaccess.h index b8f152b6aaa5..f1158b4c629c 100644 --- a/arch/xtensa/include/asm/uaccess.h +++ b/arch/xtensa/include/asm/uaccess.h @@ -44,6 +44,8 @@ #define __access_ok(addr, size) (__kernel_ok || __user_ok((addr), (size))) #define access_ok(type, addr, size) __access_ok((unsigned long)(addr), (size)) +#define user_addr_max() (uaccess_kernel() ? ~0UL : TASK_SIZE) + /* * These are the main single-value transfer routines. They * automatically use the right size if we just have the right pointer @@ -261,7 +263,7 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long n) static inline unsigned long __xtensa_clear_user(void *addr, unsigned long size) { - if ( ! memset(addr, 0, size) ) + if (!__memset(addr, 0, size)) return size; return 0; } @@ -277,6 +279,8 @@ clear_user(void *addr, unsigned long size) #define __clear_user __xtensa_clear_user +#ifndef CONFIG_GENERIC_STRNCPY_FROM_USER + extern long __strncpy_user(char *, const char *, long); static inline long @@ -286,6 +290,9 @@ strncpy_from_user(char *dst, const char *src, long count) return __strncpy_user(dst, src, count); return -EFAULT; } +#else +long strncpy_from_user(char *dst, const char *src, long count); +#endif /* * Return the size of a string (including the ending 0!) |