On 30-Mar-21 3:15 PM, Anatoly Burakov wrote:
Currently, when we set the pstate governor to "performance", we check if it is already set to this value, and if it is, we skip setting it.However, we never save this value anywhere, so that next time we come back and request the governor to be set to its original value, the original value is empty. Fix it by saving the original pstate governor first. While we're at it, replace `strlcpy` with `strscpy`. Signed-off-by: Anatoly Burakov <anatoly.bura...@intel.com> --- lib/librte_power/power_pstate_cpufreq.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/lib/librte_power/power_pstate_cpufreq.c b/lib/librte_power/power_pstate_cpufreq.c index 7ea1bf677a..a7a44df23f 100644 --- a/lib/librte_power/power_pstate_cpufreq.c +++ b/lib/librte_power/power_pstate_cpufreq.c @@ -450,6 +450,9 @@ power_set_governor_performance(struct pstate_power_info *pi) ret = read_core_sysfs_s(f_governor, buf, sizeof(buf)); FOPS_OR_ERR_GOTO(ret, out);+ /* Save the original governor */+ strscpy(pi->governor_ori, buf, sizeof(pi->governor_ori)); + /* Check if current governor is performance */ if (strncmp(buf, POWER_GOVERNOR_PERF, sizeof(POWER_GOVERNOR_PERF)) == 0) { @@ -458,8 +461,6 @@ power_set_governor_performance(struct pstate_power_info *pi) "already performance\n", pi->lcore_id); goto out; } - /* Save the original governor */ - strlcpy(pi->governor_ori, buf, sizeof(pi->governor_ori));/* Write 'performance' to the governor */ret = write_core_sysfs_s(f_governor, POWER_GOVERNOR_PERF);
Forgot rte_ with strscpy... -- Thanks, Anatoly
