pipeline
t = pipeline(0);
if ((p = pipeline(CONTIN)) == NULL)
static struct op *pipeline ARGS((int cf));
t = pipeline(0);
t = pipeline(0);
STATIC union node *pipeline(void);
n1 = pipeline();
n2 = pipeline();
sunxi_tcon_is_console(device_t dev, const char *pipeline)
strncpy(p, pipeline, sizeof(p) - 1);
aprint_error("warning: can't parse pipeline %s\n", pipeline);