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Diffstat (limited to 'arch/arm/include/asm/uaccess.h')
-rw-r--r--arch/arm/include/asm/uaccess.h22
1 files changed, 1 insertions, 21 deletions
diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h
index 32dbfd81f42a..2fcbec9c306c 100644
--- a/arch/arm/include/asm/uaccess.h
+++ b/arch/arm/include/asm/uaccess.h
@@ -56,21 +56,6 @@ extern int __put_user_bad(void);
#ifdef CONFIG_MMU
/*
- * We use 33-bit arithmetic here. Success returns zero, failure returns
- * addr_limit. We take advantage that addr_limit will be zero for KERNEL_DS,
- * so this will always return success in that case.
- */
-#define __range_ok(addr, size) ({ \
- unsigned long flag, roksum; \
- __chk_user_ptr(addr); \
- __asm__(".syntax unified\n" \
- "adds %1, %2, %3; sbcscc %1, %1, %0; movcc %0, #0" \
- : "=&r" (flag), "=&r" (roksum) \
- : "r" (addr), "Ir" (size), "0" (TASK_SIZE) \
- : "cc"); \
- flag; })
-
-/*
* This is a type: either unsigned long, if the argument fits into
* that type, or otherwise unsigned long long.
*/
@@ -241,15 +226,12 @@ extern int __put_user_8(void *, unsigned long long);
#else /* CONFIG_MMU */
-#define __addr_ok(addr) ((void)(addr), 1)
-#define __range_ok(addr, size) ((void)(addr), 0)
-
#define get_user(x, p) __get_user(x, p)
#define __put_user_check __put_user_nocheck
#endif /* CONFIG_MMU */
-#define access_ok(addr, size) (__range_ok(addr, size) == 0)
+#include <asm-generic/access_ok.h>
#ifdef CONFIG_CPU_SPECTRE
/*
@@ -476,8 +458,6 @@ do { \
: "r" (x), "i" (-EFAULT) \
: "cc")
-#define HAVE_GET_KERNEL_NOFAULT
-
#define __get_kernel_nofault(dst, src, type, err_label) \
do { \
const type *__pk_ptr = (src); \