sync_add 83 tools/testing/selftests/uevent/uevent_filtering.c uint64_t sync_add = 1; sync_add 148 tools/testing/selftests/uevent/uevent_filtering.c ret = write_nointr(sync_fd, &sync_add, sizeof(sync_add)); sync_add 150 tools/testing/selftests/uevent/uevent_filtering.c if (ret != sizeof(sync_add)) {