diff options
Diffstat (limited to 'include/asm-x86/uaccess_32.h')
| -rw-r--r-- | include/asm-x86/uaccess_32.h | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/include/asm-x86/uaccess_32.h b/include/asm-x86/uaccess_32.h index 92ad19e..3cc3236 100644 --- a/include/asm-x86/uaccess_32.h +++ b/include/asm-x86/uaccess_32.h @@ -24,49 +24,6 @@ extern struct movsl_mask { ((unsigned long __force)(addr) < \ (current_thread_info()->addr_limit.seg)) -/* Careful: we have to cast the result to the type of the pointer - * for sign reasons */ - -/** - * get_user: - Get a simple variable from user space. - * @x: Variable to store result. - * @ptr: Source address, in user space. - * - * Context: User context only. This function may sleep. - * - * This macro copies a single simple variable from user space to kernel - * space. It supports simple types like char and int, but not larger - * data types like structures or arrays. - * - * @ptr must have pointer-to-simple-variable type, and the result of - * dereferencing @ptr must be assignable to @x without a cast. - * - * Returns zero on success, or -EFAULT on error. - * On error, the variable @x is set to zero. - */ -#define get_user(x, ptr) \ -({ \ - int __ret_gu; \ - unsigned long __val_gu; \ - __chk_user_ptr(ptr); \ - switch (sizeof(*(ptr))) { \ - case 1: \ - __get_user_x(1, __ret_gu, __val_gu, ptr); \ - break; \ - case 2: \ - __get_user_x(2, __ret_gu, __val_gu, ptr); \ - break; \ - case 4: \ - __get_user_x(4, __ret_gu, __val_gu, ptr); \ - break; \ - default: \ - __get_user_x(X, __ret_gu, __val_gu, ptr); \ - break; \ - } \ - (x) = (__typeof__(*(ptr)))__val_gu; \ - __ret_gu; \ -}) - extern void __put_user_bad(void); /* |
