[S390] qdio: fix qeth port count detection
qeth needs to get the port count information before
qdio has allocated a page for the chsc operation.
Extend qdio_get_ssqd_desc() to store the data in the
specified structure.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 7c86591..7572a00 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -1129,23 +1129,23 @@
/**
* qdio_get_ssqd_desc - get qdio subchannel description
* @cdev: ccw device to get description for
+ * @data: where to store the ssqd
*
- * Returns a pointer to the saved qdio subchannel description,
- * or NULL for not setup qdio devices.
+ * Returns 0 or an error code. The results of the chsc are stored in the
+ * specified structure.
*/
-struct qdio_ssqd_desc *qdio_get_ssqd_desc(struct ccw_device *cdev)
+int qdio_get_ssqd_desc(struct ccw_device *cdev,
+ struct qdio_ssqd_desc *data)
{
- struct qdio_irq *irq_ptr;
char dbf_text[15];
+ if (!cdev || !cdev->private)
+ return -EINVAL;
+
sprintf(dbf_text, "qssq%4x", cdev->private->schid.sch_no);
QDIO_DBF_TEXT0(0, setup, dbf_text);
- irq_ptr = cdev->private->qdio_data;
- if (!irq_ptr)
- return NULL;
-
- return &irq_ptr->ssqd_desc;
+ return qdio_setup_get_ssqd(NULL, &cdev->private->schid, data);
}
EXPORT_SYMBOL_GPL(qdio_get_ssqd_desc);