seq_vprintf
seq_vprintf(file, fmt, args);
seq_vprintf(seq, fmt, args);
EXPORT_SYMBOL(seq_vprintf);
seq_vprintf(m, f, args);
void seq_vprintf(struct seq_file *m, const char *fmt, va_list args);
seq_vprintf((struct seq_file *)show->target, fmt, args);
seq_vprintf(m, fmt, args);
seq_vprintf(stream->seq, fmt, args);
seq_vprintf(seq, fmt, args);