Commit 9080c924 authored by Sebastian Ott's avatar Sebastian Ott Committed by Martin Schwidefsky
Browse files

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: default avatarSebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: default avatarCornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: default avatarUrsula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 7de6a63c

drivers/s390/cio/qdio_main.c

+23 −9
Original line number Diff line number Diff line
@@ -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)

CRA Git | Maintained and supported by SUSTech CRA and CCSE