From dabecb2933f7ae901c88cb10c71ab38ca7dfc38f Mon Sep 17 00:00:00 2001 From: Holger Dengler Date: Mon, 10 Sep 2012 21:34:26 +0200 Subject: s390/zcryt: Handle AP configuration changes Detect external AP bus configuration changes and request an AP device rescan. Signed-off-by: Holger Dengler Signed-off-by: Martin Schwidefsky --- drivers/s390/crypto/ap_bus.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'drivers/s390/crypto/ap_bus.c') diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index 39e5eb263e4b..cf5d9dc51c94 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -950,6 +950,20 @@ void ap_driver_unregister(struct ap_driver *ap_drv) } EXPORT_SYMBOL(ap_driver_unregister); +void ap_bus_force_rescan(void) +{ + /* Delete the AP bus rescan timer. */ + del_timer(&ap_config_timer); + + /* processing a synchonuous bus rescan */ + ap_scan_bus(NULL); + + /* Setup the AP bus rescan timer again. */ + ap_config_timer.expires = jiffies + ap_config_time * HZ; + add_timer(&ap_config_timer); +} +EXPORT_SYMBOL(ap_bus_force_rescan); + /* * AP bus attributes. */ -- cgit v1.2.3