x86: merge put_user.

[firefly-linux-kernel-4.4.55.git] / include / asm-x86 / uaccess_32.h

diff --git a/include/asm-x86/uaccess_32.h b/include/asm-x86/uaccess_32.h
index 2c9067324d2cbbed7d094053c65684fa29f84b94..e5c0437f509b69f8f5f354c8d3aee82816f6b302 100644 (file)
--- a/include/asm-x86/uaccess_32.h
+++ b/include/asm-x86/uaccess_32.h
@@ -20,85 +20,6 @@ extern struct movsl_mask {
 } ____cacheline_aligned_in_smp movsl_mask;
 #endif
 
-extern void __put_user_bad(void);
-
-/*
- * Strange magic calling convention: pointer in %ecx,
- * value in %eax(:%edx), return value in %eax, no clobbers.
- */
-extern void __put_user_1(void);
-extern void __put_user_2(void);
-extern void __put_user_4(void);
-extern void __put_user_8(void);
-
-#define __put_user_x(size, x, ptr, __ret_pu)                   \
-       asm volatile("call __put_user_" #size : "=a" (__ret_pu) \
-                    :"0" ((typeof(*(ptr)))(x)), "c" (ptr) : "ebx")
-
-#define __put_user_8(x, ptr, __ret_pu)                         \
-       asm volatile("call __put_user_8" : "=a" (__ret_pu)      \
-                    : "A" ((typeof(*(ptr)))(x)), "c" (ptr) : "ebx")
-
-
-/**
- * put_user: - Write a simple value into user space.
- * @x:   Value to copy to user space.
- * @ptr: Destination address, in user space.
- *
- * Context: User context only.  This function may sleep.
- *
- * This macro copies a single simple value from kernel space to user
- * 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 @x must be assignable
- * to the result of dereferencing @ptr.
- *
- * Returns zero on success, or -EFAULT on error.
- */
-#ifdef CONFIG_X86_WP_WORKS_OK
-
-#define put_user(x, ptr)                                       \
-({                                                             \
-       int __ret_pu;                                           \
-       __typeof__(*(ptr)) __pu_val;                            \
-       __chk_user_ptr(ptr);                                    \
-       __pu_val = x;                                           \
-       switch (sizeof(*(ptr))) {                               \
-       case 1:                                                 \
-               __put_user_x(1, __pu_val, ptr, __ret_pu);       \
-               break;                                          \
-       case 2:                                                 \
-               __put_user_x(2, __pu_val, ptr, __ret_pu);       \
-               break;                                          \
-       case 4:                                                 \
-               __put_user_x(4, __pu_val, ptr, __ret_pu);       \
-               break;                                          \
-       case 8:                                                 \
-               __put_user_8(__pu_val, ptr, __ret_pu);          \
-               break;                                          \
-       default:                                                \
-               __put_user_x(X, __pu_val, ptr, __ret_pu);       \
-               break;                                          \
-       }                                                       \
-       __ret_pu;                                               \
-})
-
-#else
-#define put_user(x, ptr)                                       \
-({                                                             \
-       int __ret_pu;                                           \
-       __typeof__(*(ptr))__pus_tmp = x;                        \
-       __ret_pu = 0;                                           \
-       if (unlikely(__copy_to_user_ll(ptr, &__pus_tmp,         \
-                                      sizeof(*(ptr))) != 0))   \
-               __ret_pu = -EFAULT;                             \
-       __ret_pu;                                               \
-})
-
-
-#endif
-
 /**
  * __get_user: - Get a simple variable from user space, with less checking.
  * @x:   Variable to store result.