gc: mark unused descriptors in scheduler callbacks

Each of the scheduler update callbacks gets the descriptor of the lock
file, but only the crontab updater needs it. We have to retain the
unused descriptors because these are dispatched from a table of function
pointers, but we should mark them to silence -Wunused-parameter.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/gc.c b/builtin/gc.c
index 1f53b66c7b639bd8311ee44e008bfa1ed83b167e..369bd43fb29c80240b330fb5485bec36bad5bb7b 100644 (file)
--- a/builtin/gc.c
+++ b/builtin/gc.c
@@ -1934,7 +1934,7 @@ static int launchctl_add_plists(void)
               launchctl_schedule_plist(exec_path, SCHEDULE_WEEKLY);
 }
 
-static int launchctl_update_schedule(int run_maintenance, int fd)
+static int launchctl_update_schedule(int run_maintenance, int fd UNUSED)
 {
        if (run_maintenance)
                return launchctl_add_plists();
@@ -2115,7 +2115,7 @@ static int schtasks_schedule_tasks(void)
               schtasks_schedule_task(exec_path, SCHEDULE_WEEKLY);
 }
 
-static int schtasks_update_schedule(int run_maintenance, int fd)
+static int schtasks_update_schedule(int run_maintenance, int fd UNUSED)
 {
        if (run_maintenance)
                return schtasks_schedule_tasks();
@@ -2556,7 +2556,7 @@ static int systemd_timer_setup_units(void)
        return ret;
 }
 
-static int systemd_timer_update_schedule(int run_maintenance, int fd)
+static int systemd_timer_update_schedule(int run_maintenance, int fd UNUSED)
 {
        if (run_maintenance)
                return systemd_timer_setup_units();