#define access_ok(type,addr,size) _access_ok((unsigned long)(addr),(size))
+/*
+ * It is not enough to just have access_ok check for a real RAM address.
+ * This would disallow the case of code/ro-data running XIP in flash/rom.
+ * Ideally we would check the possible flash ranges too, but that is
+ * currently not so easy.
+ */
static inline int _access_ok(unsigned long addr, unsigned long size)
{
- extern unsigned long memory_start, memory_end;
-
- return (((addr >= memory_start) && (addr+size < memory_end)) ||
- (is_in_rom(addr) && is_in_rom(addr+size)));
+ return 1;
}
/*
#define get_user(x, ptr) \
({ \
int __gu_err = 0; \
- typeof(*(ptr)) __gu_val = 0; \
+ typeof(x) __gu_val = 0; \
switch (sizeof(*(ptr))) { \
case 1: \
__get_user_asm(__gu_err, __gu_val, ptr, b, "=d"); \
__get_user_asm(__gu_err, __gu_val, ptr, l, "=r"); \
break; \
case 8: \
- memcpy(&__gu_val, ptr, sizeof (*(ptr))); \
+ memcpy((void *) &__gu_val, ptr, sizeof (*(ptr))); \
break; \
default: \
__gu_val = 0; \
__gu_err = __get_user_bad(); \
break; \
} \
- (x) = __gu_val; \
+ (x) = (typeof(*(ptr))) __gu_val; \
__gu_err; \
})
#define __get_user(x, ptr) get_user(x, ptr)
extern int __get_user_bad(void);
-#define __get_user_asm(err,x,ptr,bwl,reg) \
- __asm__ ("move" #bwl " %1,%0" \
- : "=d" (x) \
+#define __get_user_asm(err,x,ptr,bwl,reg) \
+ __asm__ ("move" #bwl " %1,%0" \
+ : "=d" (x) \
: "m" (*__ptr(ptr)))
#define copy_from_user(to, from, n) (memcpy(to, from, n), 0)
*/
static inline unsigned long
-clear_user(void *to, unsigned long n)
+__clear_user(void *to, unsigned long n)
{
memset(to, 0, n);
return 0;
}
+#define clear_user(to,n) __clear_user(to,n)
+
#endif /* _M68KNOMMU_UACCESS_H */