diff options
Diffstat (limited to 'tools/perf/util/symbol.c')
| -rw-r--r-- | tools/perf/util/symbol.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 19eb623e0826..a18927d792af 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -2425,14 +2425,14 @@ static bool symbol__read_kptr_restrict(void) { bool value = false; FILE *fp = fopen("/proc/sys/kernel/kptr_restrict", "r"); + bool used_root; + bool cap_syslog = perf_cap__capable(CAP_SYSLOG, &used_root); if (fp != NULL) { char line[8]; if (fgets(line, sizeof(line), fp) != NULL) - value = perf_cap__capable(CAP_SYSLOG) ? - (atoi(line) >= 2) : - (atoi(line) != 0); + value = cap_syslog ? (atoi(line) >= 2) : (atoi(line) != 0); fclose(fp); } @@ -2440,7 +2440,7 @@ static bool symbol__read_kptr_restrict(void) /* Per kernel/kallsyms.c: * we also restrict when perf_event_paranoid > 1 w/o CAP_SYSLOG */ - if (perf_event_paranoid() > 1 && !perf_cap__capable(CAP_SYSLOG)) + if (perf_event_paranoid() > 1 && !cap_syslog) value = true; return value; |