diff options
| author | Thomas Renninger <trenn@suse.de> | 2013-06-28 15:34:29 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-07-05 01:52:19 +0200 |
| commit | f605181abd95a109031a23c67a824eb8e5dcfe67 (patch) | |
| tree | 5601199a58e0c9f5d1cd1a3e4a07457ca7070247 /tools/power | |
| parent | f991fae5c6d42dfc5029150b05a78cf3f6c18cc9 (diff) | |
| download | linux-f605181abd95a109031a23c67a824eb8e5dcfe67.tar.gz | |
cpupower: Make idlestate usage unsigned
Use unsigned int as the data type for some variables related to CPU idle states which allows the code to be simplified slightly. [rjw: Changelog] Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'tools/power')
| -rw-r--r-- | tools/power/cpupower/utils/cpuidle-info.c | 18 | ||||
| -rw-r--r-- | tools/power/cpupower/utils/helpers/sysfs.c | 2 | ||||
| -rw-r--r-- | tools/power/cpupower/utils/helpers/sysfs.h | 2 |
3 files changed, 6 insertions, 16 deletions
diff --git a/tools/power/cpupower/utils/cpuidle-info.c b/tools/power/cpupower/utils/cpuidle-info.c index 8145af5f93a6..edd5dba3e249 100644 --- a/tools/power/cpupower/utils/cpuidle-info.c +++ b/tools/power/cpupower/utils/cpuidle-info.c @@ -22,7 +22,7 @@ static void cpuidle_cpu_output(unsigned int cpu, int verbose) { - int idlestates, idlestate; + unsigned int idlestates, idlestate; char *tmp; printf(_ ("Analyzing CPU %d:\n"), cpu); @@ -31,10 +31,8 @@ static void cpuidle_cpu_output(unsigned int cpu, int verbose) if (idlestates == 0) { printf(_("CPU %u: No idle states\n"), cpu); return; - } else if (idlestates <= 0) { - printf(_("CPU %u: Can't read idle state info\n"), cpu); - return; } + printf(_("Number of idle states: %d\n"), idlestates); printf(_("Available idle states:")); for (idlestate = 0; idlestate < idlestates; idlestate++) { @@ -98,21 +96,13 @@ static void cpuidle_general_output(void) static void proc_cpuidle_cpu_output(unsigned int cpu) { long max_allowed_cstate = 2000000000; - int cstates, cstate; + unsigned int cstate, cstates; cstates = sysfs_get_idlestate_count(cpu); if (cstates == 0) { - /* - * Go on and print same useless info as you'd see with - * cat /proc/acpi/processor/../power - * printf(_("CPU %u: No C-states available\n"), cpu); - * return; - */ - } else if (cstates <= 0) { - printf(_("CPU %u: Can't read C-state info\n"), cpu); + printf(_("CPU %u: No C-states info\n"), cpu); return; } - /* printf("Cstates: %d\n", cstates); */ printf(_("active state: C0\n")); printf(_("max_cstate: C%u\n"), cstates-1); diff --git a/tools/power/cpupower/utils/helpers/sysfs.c b/tools/power/cpupower/utils/helpers/sysfs.c index 38ab91629463..891f6710d026 100644 --- a/tools/power/cpupower/utils/helpers/sysfs.c +++ b/tools/power/cpupower/utils/helpers/sysfs.c @@ -238,7 +238,7 @@ char *sysfs_get_idlestate_desc(unsigned int cpu, unsigned int idlestate) * Negativ in error case * Zero if cpuidle does not export any C-states */ -int sysfs_get_idlestate_count(unsigned int cpu) +unsigned int sysfs_get_idlestate_count(unsigned int cpu) { char file[SYSFS_PATH_MAX]; struct stat statbuf; diff --git a/tools/power/cpupower/utils/helpers/sysfs.h b/tools/power/cpupower/utils/helpers/sysfs.h index 8cb797bbceb0..0401a97a4cab 100644 --- a/tools/power/cpupower/utils/helpers/sysfs.h +++ b/tools/power/cpupower/utils/helpers/sysfs.h @@ -19,7 +19,7 @@ extern char *sysfs_get_idlestate_name(unsigned int cpu, unsigned int idlestate); extern char *sysfs_get_idlestate_desc(unsigned int cpu, unsigned int idlestate); -extern int sysfs_get_idlestate_count(unsigned int cpu); +extern unsigned int sysfs_get_idlestate_count(unsigned int cpu); extern char *sysfs_get_cpuidle_governor(void); extern char *sysfs_get_cpuidle_driver(void); |