static int ping_v4_seq_show(struct seq_file *seq, void *v)
{
	if (v == SEQ_START_TOKEN)
		seq_printf(seq, "%-127s\n",
			   "  sl  local_address rem_address   st tx_queue "
			   "rx_queue tr tm->when retrnsmt   uid  timeout "
			   "inode ref pointer drops");
	else {
		struct ping_iter_state *state = seq->private;
		int len;

		ping_v4_format_sock(v, seq, state->bucket, &len);
		seq_printf(seq, "%*s\n", 127 - len, "");
	}
	return 0;
}

Unknown