[PATCH net-next 7/9] s390/qeth: remove driver-wide workqueue

Julian Wiedmann
2019-02-28T17:59:42Z

The qeth-wide workqueue is now only used by a single caller to schedule
close_dev work. Just put it on a system queue instead.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
---
drivers/s390/net/qeth_core_main.c | 19 +------------------
1 file changed, 1 insertion(+), 18 deletions(-)

diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 6c2540e3247b..4dcb4f91b9c0 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -74,8 +74,6 @@ static void qeth_notify_skbs(struct qeth_qdio_out_q *queue,
static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf);
static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *, int);

-static struct workqueue_struct *qeth_wq;
-
int qeth_card_hw_is_reachable(struct qeth_card *card)
{
return (card->state == CARD_STATE_SOFTSETUP) ||
@@ -92,12 +90,6 @@ static void qeth_close_dev_handler(struct work_struct *work)
ccwgroup_set_offline(card->gdev);
}

-static void qeth_close_dev(struct qeth_card *card)
-{
- QETH_CARD_TEXT(card, 2, "cldevsubm");
- queue_work(qeth_wq, &card->close_dev_work);
-}
-
static const char *qeth_get_cardname(struct qeth_card *card)
{
if (card->info.guestlan) {
@@ -634,7 +626,7 @@ static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card,
dev_err(&card->gdev->dev,
"Interface %s is down because the adjacent port is no longer in reflective relay mode\n",
QETH_CARD_IFNAME(card));
- qeth_close_dev(card);
+ schedule_work(&card->close_dev_work);
} else {
dev_warn(&card->gdev->dev,
"The link for interface %s on CHPID 0x%X failed\n",
@@ -6265,12 +6257,6 @@ static int __init qeth_core_init(void)

pr_info("loading core functions\n");

- qeth_wq = create_singlethread_workqueue("qeth_wq");
- if (!qeth_wq) {
- rc = -ENOMEM;
- goto out_err;
- }
-
rc = qeth_register_dbf_views();
if (rc)
goto dbf_err;
@@ -6312,8 +6298,6 @@ static int __init qeth_core_init(void)
register_err:
qeth_unregister_dbf_views();
dbf_err:
- destroy_workqueue(qeth_wq);
-out_err:
pr_err("Initializing the qeth device driver failed\n");
return rc;
}
@@ -6321,7 +6305,6 @@ static int __init qeth_core_init(void)
static void __exit qeth_core_exit(void)
{
qeth_clear_dbf_list();
- destroy_workqueue(qeth_wq);
ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
ccw_driver_unregister(&qeth_ccw_driver);
kmem_cache_destroy(qeth_qdio_outbuf_cache);
--
2.16.4