[PATCH] sparse: fs/compat.c::copy_iocb() cleanup

That "u64" in there is actually struct iocb __user *.  Changed
prototype, killed casts in body and caller...

fs/compat.c

@@ -614,7 +614,7 @@ compat_sys_io_getevents(aio_context_t ctx_id,
 }
 
 static inline long
-copy_iocb(long nr, u32 __user *ptr32, u64 __user *ptr64)
+copy_iocb(long nr, u32 __user *ptr32, struct iocb __user * __user *ptr64)
 {
 	compat_uptr_t uptr;
 	int i;
@@ -622,7 +622,7 @@ copy_iocb(long nr, u32 __user *ptr32, u64 __user *ptr64)
 	for (i = 0; i < nr; ++i) {
 		if (get_user(uptr, ptr32 + i))
 			return -EFAULT;
-		if (put_user((u64)compat_ptr(uptr), ptr64 + i))
+		if (put_user(compat_ptr(uptr), ptr64 + i))
 			return -EFAULT;
 	}
 	return 0;
@@ -643,7 +643,7 @@ compat_sys_io_submit(aio_context_t ctx_id, int nr, u32 __user *iocb)
 		nr = MAX_AIO_SUBMITS;
 	
 	iocb64 = compat_alloc_user_space(nr * sizeof(*iocb64));
-	ret = copy_iocb(nr, iocb, (u64 __user *) iocb64);
+	ret = copy_iocb(nr, iocb, iocb64);
 	if (!ret)
 		ret = sys_io_submit(ctx_id, nr, iocb64);
 	return ret;