orig_clk 124 tools/testing/selftests/timers/clocksource-switch.c char orig_clk[512]; orig_clk 128 tools/testing/selftests/timers/clocksource-switch.c get_cur_clocksource(orig_clk, 512); orig_clk 163 tools/testing/selftests/timers/clocksource-switch.c change_clocksource(orig_clk);