initialize_llc_perf() unconditionally returns 0.
initialize_llc_perf() performs only memory initialization, none of which can fail.
Change the return type from int to void to accurately reflect that its return value doesn't need to be checked. Remove the error checking from the only callsite.
Co-developed-by: Fenghua Yu fenghua.yu@intel.com Signed-off-by: Fenghua Yu fenghua.yu@intel.com Signed-off-by: Ilpo Järvinen ilpo.jarvinen@linux.intel.com --- tools/testing/selftests/resctrl/cache.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-)
diff --git a/tools/testing/selftests/resctrl/cache.c b/tools/testing/selftests/resctrl/cache.c index 0485863a169f..585186c874dc 100644 --- a/tools/testing/selftests/resctrl/cache.c +++ b/tools/testing/selftests/resctrl/cache.c @@ -48,7 +48,7 @@ static int perf_event_open_llc_miss(pid_t pid, int cpu_no) return 0; }
-static int initialize_llc_perf(void) +static void initialize_llc_perf(void) { memset(&pea_llc_miss, 0, sizeof(struct perf_event_attr)); memset(&rf_cqm, 0, sizeof(struct read_format)); @@ -59,8 +59,6 @@ static int initialize_llc_perf(void) pea_llc_miss.config = PERF_COUNT_HW_CACHE_MISSES;
rf_cqm.nr = 1; - - return 0; }
static int reset_enable_llc_perf(pid_t pid, int cpu_no) @@ -234,11 +232,8 @@ int cat_val(struct resctrl_val_param *param) if (ret) return ret;
- if (!strncmp(resctrl_val, CAT_STR, sizeof(CAT_STR))) { - ret = initialize_llc_perf(); - if (ret) - return ret; - } + if (!strncmp(resctrl_val, CAT_STR, sizeof(CAT_STR))) + initialize_llc_perf();
/* Test runs until the callback setup() tells the test to stop. */ while (1) {