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s390/sclp: Remove quiesce power management support 

Power management support was removed for s390 with
commit 394216275c ("s390: remove broken hibernate / power management
support").

Remove leftover sclp quiesce-related power management code.

Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Peter Oberparleiter 2021-06-11 11:13:40 +02:00 committed by Vasily Gorbik
parent fc8ebe820b
commit 9b357ccddb
1 changed files with 3 additions and 34 deletions
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37
drivers/s390/char/sclp_quiesce.c
View File

@ -18,10 +18,6 @@
#include "sclp.h"
static void (*old_machine_restart)(char *);
static void (*old_machine_halt)(void);
static void (*old_machine_power_off)(void);
/* Shutdown handler. Signal completion of shutdown by loading special PSW. */
static void do_machine_quiesce(void)
{
@ -37,42 +33,15 @@ static void do_machine_quiesce(void)
/* Handler for quiesce event. Start shutdown procedure. */
static void sclp_quiesce_handler(struct evbuf_header *evbuf)
{
if (_machine_restart != (void *) do_machine_quiesce) {
old_machine_restart = _machine_restart;
old_machine_halt = _machine_halt;
old_machine_power_off = _machine_power_off;
_machine_restart = (void *) do_machine_quiesce;
_machine_halt = do_machine_quiesce;
_machine_power_off = do_machine_quiesce;
}
_machine_restart = (void *) do_machine_quiesce;
_machine_halt = do_machine_quiesce;
_machine_power_off = do_machine_quiesce;
ctrl_alt_del();
}
/* Undo machine restart/halt/power_off modification on resume */
static void sclp_quiesce_pm_event(struct sclp_register *reg,
enum sclp_pm_event sclp_pm_event)
{
switch (sclp_pm_event) {
case SCLP_PM_EVENT_RESTORE:
if (old_machine_restart) {
_machine_restart = old_machine_restart;
_machine_halt = old_machine_halt;
_machine_power_off = old_machine_power_off;
old_machine_restart = NULL;
old_machine_halt = NULL;
old_machine_power_off = NULL;
}
break;
case SCLP_PM_EVENT_FREEZE:
case SCLP_PM_EVENT_THAW:
break;
}
}
static struct sclp_register sclp_quiesce_event = {
.receive_mask = EVTYP_SIGQUIESCE_MASK,
.receiver_fn = sclp_quiesce_handler,
.pm_event_fn = sclp_quiesce_pm_event
};
/* Initialize quiesce driver. */