rtcwake: remove a static variable

function                                             old     new   delta
rtc_time                                               4       -      -4
rtcwake_main                                         479     474      -5
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 0/1 up/down: 0/-9)               Total: -9 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

diff --git a/util-linux/rtcwake.c b/util-linux/rtcwake.c
index ee2f031..4d2be00 100644 (file)
--- a/util-linux/rtcwake.c
+++ b/util-linux/rtcwake.c
@@ -30,8 +30,6 @@
 #define SYS_POWER_PATH "/sys/power/state"
 #define DEFAULT_MODE   "standby"
 
-static time_t rtc_time;
-
 static NOINLINE bool may_wakeup(const char *rtcname)
 {
        ssize_t ret;
@@ -50,7 +48,7 @@ static NOINLINE bool may_wakeup(const char *rtcname)
        return strncmp(buf, "enabled\n", 8) == 0;
 }
 
-static NOINLINE void setup_alarm(int fd, time_t *wakeup)
+static NOINLINE void setup_alarm(int fd, time_t *wakeup, time_t rtc_time)
 {
        struct tm *tm;
        struct linux_rtc_wkalrm wake;
@@ -102,6 +100,8 @@ static NOINLINE void setup_alarm(int fd, time_t *wakeup)
 int rtcwake_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int rtcwake_main(int argc UNUSED_PARAM, char **argv)
 {
+       time_t rtc_time;
+
        unsigned opt;
        const char *rtcname = NULL;
        const char *suspend;
@@ -170,7 +170,7 @@ int rtcwake_main(int argc UNUSED_PARAM, char **argv)
                alarm_time += sys_time - rtc_time;
        } else
                alarm_time = rtc_time + seconds + 1;
-       setup_alarm(fd, &alarm_time);
+       setup_alarm(fd, &alarm_time, rtc_time);
 
        sync();
        printf("wakeup from \"%s\" at %s", suspend, ctime(&alarm_time));