From a5c2a893dbd4956a72fb261e8790d19f67b52c99 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Wed, 28 Nov 2012 11:50:28 -0800 Subject: x86, 386 removal: Remove CONFIG_X86_WP_WORKS_OK All 486+ CPUs support WP in supervisor mode, so remove the fallback 386 support code. Signed-off-by: H. Peter Anvin Link: http://lkml.kernel.org/r/1354132230-21854-7-git-send-email-hpa@linux.intel.com --- arch/x86/include/asm/uaccess.h | 42 ------------------------------------------ 1 file changed, 42 deletions(-) (limited to 'arch/x86/include/asm/uaccess.h') diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h index 7ccf8d1..1709801 100644 --- a/arch/x86/include/asm/uaccess.h +++ b/arch/x86/include/asm/uaccess.h @@ -237,8 +237,6 @@ extern void __put_user_2(void); extern void __put_user_4(void); extern void __put_user_8(void); -#ifdef CONFIG_X86_WP_WORKS_OK - /** * put_user: - Write a simple value into user space. * @x: Value to copy to user space. @@ -326,29 +324,6 @@ do { \ } \ } while (0) -#else - -#define __put_user_size(x, ptr, size, retval, errret) \ -do { \ - __typeof__(*(ptr))__pus_tmp = x; \ - retval = 0; \ - \ - if (unlikely(__copy_to_user_ll(ptr, &__pus_tmp, size) != 0)) \ - retval = errret; \ -} while (0) - -#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 - #ifdef CONFIG_X86_32 #define __get_user_asm_u64(x, ptr, retval, errret) (x) = __get_user_bad() #define __get_user_asm_ex_u64(x, ptr) (x) = __get_user_bad() @@ -543,29 +518,12 @@ struct __large_struct { unsigned long buf[100]; }; (x) = (__force __typeof__(*(ptr)))__gue_val; \ } while (0) -#ifdef CONFIG_X86_WP_WORKS_OK - #define put_user_try uaccess_try #define put_user_catch(err) uaccess_catch(err) #define put_user_ex(x, ptr) \ __put_user_size_ex((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr))) -#else /* !CONFIG_X86_WP_WORKS_OK */ - -#define put_user_try do { \ - int __uaccess_err = 0; - -#define put_user_catch(err) \ - (err) |= __uaccess_err; \ -} while (0) - -#define put_user_ex(x, ptr) do { \ - __uaccess_err |= __put_user(x, ptr); \ -} while (0) - -#endif /* CONFIG_X86_WP_WORKS_OK */ - extern unsigned long copy_from_user_nmi(void *to, const void __user *from, unsigned long n); extern __must_check long -- cgit v1.1