diff options
Diffstat (limited to 'arch/sh/include/asm/uaccess.h')
| -rw-r--r-- | arch/sh/include/asm/uaccess.h | 32 |
1 files changed, 3 insertions, 29 deletions
diff --git a/arch/sh/include/asm/uaccess.h b/arch/sh/include/asm/uaccess.h index 5fe751ad7582..a79609eb14be 100644 --- a/arch/sh/include/asm/uaccess.h +++ b/arch/sh/include/asm/uaccess.h @@ -2,30 +2,8 @@ #ifndef __ASM_SH_UACCESS_H #define __ASM_SH_UACCESS_H -#include <asm/segment.h> #include <asm/extable.h> - -#define __addr_ok(addr) \ - ((unsigned long __force)(addr) < current_thread_info()->addr_limit.seg) - -/* - * __access_ok: Check if address with size is OK or not. - * - * Uhhuh, this needs 33-bit arithmetic. We have a carry.. - * - * sum := addr + size; carry? --> flag = true; - * if (sum >= addr_limit) flag = true; - */ -#define __access_ok(addr, size) ({ \ - unsigned long __ao_a = (addr), __ao_b = (size); \ - unsigned long __ao_end = __ao_a + __ao_b - !!__ao_b; \ - __ao_end >= __ao_a && __addr_ok(__ao_end); }) - -#define access_ok(addr, size) \ - (__chk_user_ptr(addr), \ - __access_ok((unsigned long __force)(addr), (size))) - -#define user_addr_max() (current_thread_info()->addr_limit.seg) +#include <asm-generic/access_ok.h> /* * Uh, these should become the main single-value transfer routines ... @@ -68,7 +46,7 @@ struct __large_struct { unsigned long buf[100]; }; ({ \ long __gu_err = -EFAULT; \ unsigned long __gu_val = 0; \ - const __typeof__(*(ptr)) *__gu_addr = (ptr); \ + const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \ if (likely(access_ok(__gu_addr, (size)))) \ __get_user_size(__gu_val, __gu_addr, (size), __gu_err); \ (x) = (__force __typeof__(*(ptr)))__gu_val; \ @@ -96,11 +74,7 @@ struct __large_struct { unsigned long buf[100]; }; __pu_err; \ }) -#ifdef CONFIG_SUPERH32 # include <asm/uaccess_32.h> -#else -# include <asm/uaccess_64.h> -#endif extern long strncpy_from_user(char *dest, const char __user *src, long count); @@ -128,7 +102,7 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long n) * Clear the area and return remaining number of bytes * (on failure. Usually it's 0.) */ -__kernel_size_t __clear_user(void *addr, __kernel_size_t size); +__kernel_size_t __clear_user(void __user *addr, __kernel_size_t size); #define clear_user(addr,n) \ ({ \ |