diff options
Diffstat (limited to 'arch/mips/include/asm')
| -rw-r--r-- | arch/mips/include/asm/uaccess.h | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/arch/mips/include/asm/uaccess.h b/arch/mips/include/asm/uaccess.h index 99e629a590a5..846628eee108 100644 --- a/arch/mips/include/asm/uaccess.h +++ b/arch/mips/include/asm/uaccess.h @@ -1073,50 +1073,6 @@ strncpy_from_user(char *__to, const char __user *__from, long __len) return res; } -extern long __strlen_kernel_asm(const char __user *s); -extern long __strlen_user_asm(const char __user *s); - -/* - * strlen_user: - Get the size of a string in user space. - * @str: The string to measure. - * - * Context: User context only. This function may sleep if pagefaults are - * enabled. - * - * Get the size of a NUL-terminated string in user space. - * - * Returns the size of the string INCLUDING the terminating NUL. - * On exception, returns 0. - * - * If there is a limit on the length of a valid string, you may wish to - * consider using strnlen_user() instead. - */ -static inline long strlen_user(const char __user *s) -{ - long res; - - if (eva_kernel_access()) { - __asm__ __volatile__( - "move\t$4, %1\n\t" - __MODULE_JAL(__strlen_kernel_asm) - "move\t%0, $2" - : "=r" (res) - : "r" (s) - : "$2", "$4", __UA_t0, "$31"); - } else { - might_fault(); - __asm__ __volatile__( - "move\t$4, %1\n\t" - __MODULE_JAL(__strlen_user_asm) - "move\t%0, $2" - : "=r" (res) - : "r" (s) - : "$2", "$4", __UA_t0, "$31"); - } - - return res; -} - extern long __strnlen_kernel_nocheck_asm(const char __user *s, long n); extern long __strnlen_user_nocheck_asm(const char __user *s, long n); |