get_mem_bw_imc() handles fds in a for loop but close() is based on two fixed indexes READ and WRITE.
Open code all for loops to READ+WRITE entries for clarity. Suggested-by: Reinette Chatre <[email protected]> Signed-off-by: Ilpo Järvinen <[email protected]> --- v3: - Rework entirely, use open coding instead of for loops for clarity --- tools/testing/selftests/resctrl/resctrl_val.c | 22 ++++++++++--------- 1 file changed, 12 insertions(+), 10 deletions(-) diff --git a/tools/testing/selftests/resctrl/resctrl_val.c b/tools/testing/selftests/resctrl/resctrl_val.c index 445f306d4c2f..456cf0d0b8ca 100644 --- a/tools/testing/selftests/resctrl/resctrl_val.c +++ b/tools/testing/selftests/resctrl/resctrl_val.c @@ -306,26 +306,28 @@ static int initialize_mem_bw_imc(void) static int get_mem_bw_imc(int cpu_no, char *bw_report, float *bw_imc) { float reads, writes, of_mul_read, of_mul_write; - int imc, j, ret; + int imc, ret; /* Start all iMC counters to log values (both read and write) */ reads = 0, writes = 0, of_mul_read = 1, of_mul_write = 1; for (imc = 0; imc < imcs; imc++) { - for (j = 0; j < 2; j++) { - ret = open_perf_event(imc, cpu_no, j); - if (ret) - return -1; - } - for (j = 0; j < 2; j++) - membw_ioctl_perf_event_ioc_reset_enable(imc, j); + ret = open_perf_event(imc, cpu_no, READ); + if (ret) + return -1; + ret = open_perf_event(imc, cpu_no, WRITE); + if (ret) + return -1; + + membw_ioctl_perf_event_ioc_reset_enable(imc, READ); + membw_ioctl_perf_event_ioc_reset_enable(imc, WRITE); } sleep(1); /* Stop counters after a second to get results (both read and write) */ for (imc = 0; imc < imcs; imc++) { - for (j = 0; j < 2; j++) - membw_ioctl_perf_event_ioc_disable(imc, j); + membw_ioctl_perf_event_ioc_disable(imc, READ); + membw_ioctl_perf_event_ioc_disable(imc, WRITE); } /* -- 2.39.2
