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s390/qdio: obtain subchannel_id via ccw_device_get_schid() 

We want to get rid of the copy of struct subchannel_id maintained in
ccw_device_private, so obtain it using ccw_device_get_schid().

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Sebastian Ott 2016-07-28 20:30:31 +02:00 коммит произвёл Martin Schwidefsky
Родитель 7de6a63ca2
Коммит 9080c92494
1 изменённых файлов: 23 добавлений и 9 удалений
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32
drivers/s390/cio/qdio_main.c
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@ -1066,10 +1066,12 @@ void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm,
struct irb *irb)
{
struct qdio_irq *irq_ptr = cdev->private->qdio_data;
struct subchannel_id schid;
int cstat, dstat;
if (!intparm || !irq_ptr) {
DBF_ERROR("qint:%4x", cdev->private->schid.sch_no);
ccw_device_get_schid(cdev, &schid);
DBF_ERROR("qint:%4x", schid.sch_no);
return;
}
@ -1122,12 +1124,14 @@ void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm,
int qdio_get_ssqd_desc(struct ccw_device *cdev,
struct qdio_ssqd_desc *data)
{
struct subchannel_id schid;
if (!cdev || !cdev->private)
return -EINVAL;
DBF_EVENT("get ssqd:%4x", cdev->private->schid.sch_no);
return qdio_setup_get_ssqd(NULL, &cdev->private->schid, data);
ccw_device_get_schid(cdev, &schid);
DBF_EVENT("get ssqd:%4x", schid.sch_no);
return qdio_setup_get_ssqd(NULL, &schid, data);
}
EXPORT_SYMBOL_GPL(qdio_get_ssqd_desc);
@ -1154,6 +1158,7 @@ static void qdio_shutdown_queues(struct ccw_device *cdev)
int qdio_shutdown(struct ccw_device *cdev, int how)
{
struct qdio_irq *irq_ptr = cdev->private->qdio_data;
struct subchannel_id schid;
int rc;
unsigned long flags;
@ -1161,7 +1166,8 @@ int qdio_shutdown(struct ccw_device *cdev, int how)
return -ENODEV;
WARN_ON_ONCE(irqs_disabled());
DBF_EVENT("qshutdown:%4x", cdev->private->schid.sch_no);
ccw_device_get_schid(cdev, &schid);
DBF_EVENT("qshutdown:%4x", schid.sch_no);
mutex_lock(&irq_ptr->setup_mutex);
/*
@ -1228,11 +1234,13 @@ EXPORT_SYMBOL_GPL(qdio_shutdown);
int qdio_free(struct ccw_device *cdev)
{
struct qdio_irq *irq_ptr = cdev->private->qdio_data;
struct subchannel_id schid;
if (!irq_ptr)
return -ENODEV;
DBF_EVENT("qfree:%4x", cdev->private->schid.sch_no);
ccw_device_get_schid(cdev, &schid);
DBF_EVENT("qfree:%4x", schid.sch_no);
DBF_DEV_EVENT(DBF_ERR, irq_ptr, "dbf abandoned");
mutex_lock(&irq_ptr->setup_mutex);
@ -1251,9 +1259,11 @@ EXPORT_SYMBOL_GPL(qdio_free);
*/
int qdio_allocate(struct qdio_initialize *init_data)
{
struct subchannel_id schid;
struct qdio_irq *irq_ptr;
DBF_EVENT("qallocate:%4x", init_data->cdev->private->schid.sch_no);
ccw_device_get_schid(init_data->cdev, &schid);
DBF_EVENT("qallocate:%4x", schid.sch_no);
if ((init_data->no_input_qs && !init_data->input_handler) ||
(init_data->no_output_qs && !init_data->output_handler))
@ -1331,12 +1341,14 @@ static void qdio_detect_hsicq(struct qdio_irq *irq_ptr)
*/
int qdio_establish(struct qdio_initialize *init_data)
{
struct qdio_irq *irq_ptr;
struct ccw_device *cdev = init_data->cdev;
struct subchannel_id schid;
struct qdio_irq *irq_ptr;
unsigned long saveflags;
int rc;
DBF_EVENT("qestablish:%4x", cdev->private->schid.sch_no);
ccw_device_get_schid(cdev, &schid);
DBF_EVENT("qestablish:%4x", schid.sch_no);
irq_ptr = cdev->private->qdio_data;
if (!irq_ptr)
@ -1407,11 +1419,13 @@ EXPORT_SYMBOL_GPL(qdio_establish);
*/
int qdio_activate(struct ccw_device *cdev)
{
struct subchannel_id schid;
struct qdio_irq *irq_ptr;
int rc;
unsigned long saveflags;
DBF_EVENT("qactivate:%4x", cdev->private->schid.sch_no);
ccw_device_get_schid(cdev, &schid);
DBF_EVENT("qactivate:%4x", schid.sch_no);
irq_ptr = cdev->private->qdio_data;
if (!irq_ptr)