#define unsafe_op_wrap(op, err) do { if (unlikely(op)) goto err; } while (0)
#define unsafe_get_user(x, p, e) unsafe_op_wrap(__get_user_allowed(x, p), e)
#define unsafe_put_user(x, p, e) __put_user_goto(x, p, e)
+
#define unsafe_copy_to_user(d, s, l, e) \
- unsafe_op_wrap(raw_copy_to_user_allowed(d, s, l), e)
+do { \
+ u8 __user *_dst = (u8 __user *)(d); \
+ const u8 *_src = (const u8 *)(s); \
+ size_t _len = (l); \
+ int _i; \
+ \
+ for (_i = 0; _i < (_len & ~(sizeof(long) - 1)); _i += sizeof(long)) \
+ __put_user_goto(*(long*)(_src + _i), (long __user *)(_dst + _i), e);\
+ if (IS_ENABLED(CONFIG_PPC64) && (_len & 4)) { \
+ __put_user_goto(*(u32*)(_src + _i), (u32 __user *)(_dst + _i), e); \
+ _i += 4; \
+ } \
+ if (_len & 2) { \
+ __put_user_goto(*(u16*)(_src + _i), (u16 __user *)(_dst + _i), e); \
+ _i += 2; \
+ } \
+ if (_len & 1) \
+ __put_user_goto(*(u8*)(_src + _i), (u8 __user *)(_dst + _i), e);\
+} while (0)
#endif /* _ARCH_POWERPC_UACCESS_H */