selftests: sync: Fix cast warnings on arm

Fix warnings on __u64 and pointer translation on arm and
other 32bit architectures. Since the pointer is 32bits on
those archs, we should not directly cast those types.

Signed-off-by: Masami Hiramatsu <[e-mail]>
Cc: Emilio López <[e-mail]>
Signed-off-by: Shuah Khan <[e-mail]>

tools/testing/selftests/sync/sync.c

···
 			return NULL;
 		}
 
-		info->sync_fence_info = (uint64_t)fence_info;
+		info->sync_fence_info = (uint64_t)(unsigned long)fence_info;
 
 		err = ioctl(fd, SYNC_IOC_FILE_INFO, info);
 		if (err < 0) {
···
 
 static void sync_file_info_free(struct sync_file_info *info)
 {
-	free((void *)info->sync_fence_info);
+	free((void *)(unsigned long)info->sync_fence_info);
 	free(info);
 }
 
···
 	if (!info)
 		return -1;
 
-	fence_info = (struct sync_fence_info *)info->sync_fence_info;
+	fence_info = (struct sync_fence_info *)(unsigned long)info->sync_fence_info;
 	for (i = 0 ; i < info->num_fences ; i++) {
 		if (fence_info[i].status == status)
 			count++;