X21              1113 drivers/net/wan/farsync.c 	if (signals & (((port->hwif == X21) || (port->hwif == X21D))
X21              1880 drivers/net/wan/farsync.c 		FST_WRW(card, portConfig[i].lineInterface, X21);
X21              1881 drivers/net/wan/farsync.c 		port->hwif = X21;
X21              1949 drivers/net/wan/farsync.c 	case X21:
X21              2153 drivers/net/wan/farsync.c 		if (signals & (((port->hwif == X21) || (port->hwif == X21D))
X21                40 tools/perf/arch/arm64/util/unwind-libdw.c 	dwarf_regs[21] = REG(X21);