From ae57ea7a19b784e5982ae25bdba3cdf7c98f3067 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Tue, 20 Jul 2021 08:38:49 +0200 Subject: s390/qeth: clean up device_type management qeth uses three device_type structs - a generic one, and one for each sub-driver (which is used for fixed-layer devices only). Instead of exporting these device_types back&forth between the driver's modules, make all the logic self-contained within the sub-drivers. On disc->setup() they either install their own device_type, or add the sysfs attributes that are missing in the generic device_type. Later on disc->remove() these attributes are removed again from any device that has the generic device_type. Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller --- drivers/s390/net/qeth_core.h | 2 -- drivers/s390/net/qeth_core_main.c | 4 +--- drivers/s390/net/qeth_l2_main.c | 8 +++++--- drivers/s390/net/qeth_l3_main.c | 7 ++++--- 4 files changed, 10 insertions(+), 11 deletions(-) diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h index 6819cc82fc00..c17031519900 100644 --- a/drivers/s390/net/qeth_core.h +++ b/drivers/s390/net/qeth_core.h @@ -767,7 +767,6 @@ enum qeth_threads { }; struct qeth_discipline { - const struct device_type *devtype; int (*setup) (struct ccwgroup_device *); void (*remove) (struct ccwgroup_device *); int (*set_online)(struct qeth_card *card, bool carrier_ok); @@ -1040,7 +1039,6 @@ extern const struct qeth_discipline qeth_l2_discipline; extern const struct qeth_discipline qeth_l3_discipline; extern const struct ethtool_ops qeth_ethtool_ops; extern const struct attribute_group *qeth_dev_groups[]; -extern const struct device_type qeth_generic_devtype; const char *qeth_get_cardname_short(struct qeth_card *); int qeth_resize_buffer_pool(struct qeth_card *card, unsigned int count); diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 02a12f984ce2..7f486212c6aa 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -6286,10 +6286,9 @@ void qeth_remove_discipline(struct qeth_card *card) card->discipline = NULL; } -const struct device_type qeth_generic_devtype = { +static const struct device_type qeth_generic_devtype = { .name = "qeth_generic", }; -EXPORT_SYMBOL_GPL(qeth_generic_devtype); #define DBF_NAME_LEN 20 @@ -6474,7 +6473,6 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev) if (rc) goto err_setup_disc; - gdev->dev.type = card->discipline->devtype; break; } diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index c00cc6ea721f..7fe0f1aea3cb 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -2056,10 +2056,12 @@ static int qeth_l2_probe_device(struct ccwgroup_device *gdev) qeth_l2_vnicc_set_defaults(card); mutex_init(&card->sbp_lock); - if (gdev->dev.type == &qeth_generic_devtype) { + if (gdev->dev.type) { rc = device_add_groups(&gdev->dev, qeth_l2_attr_groups); if (rc) return rc; + } else { + gdev->dev.type = &qeth_l2_devtype; } INIT_WORK(&card->rx_mode_work, qeth_l2_rx_mode_work); @@ -2070,8 +2072,9 @@ static void qeth_l2_remove_device(struct ccwgroup_device *gdev) { struct qeth_card *card = dev_get_drvdata(&gdev->dev); - if (gdev->dev.type == &qeth_generic_devtype) + if (gdev->dev.type != &qeth_l2_devtype) device_remove_groups(&gdev->dev, qeth_l2_attr_groups); + qeth_set_allowed_threads(card, 0, 1); wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0); @@ -2191,7 +2194,6 @@ static int qeth_l2_control_event(struct qeth_card *card, } const struct qeth_discipline qeth_l2_discipline = { - .devtype = &qeth_l2_devtype, .setup = qeth_l2_probe_device, .remove = qeth_l2_remove_device, .set_online = qeth_l2_set_online, diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index d308ff744a29..959ba62ccbb7 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -1939,12 +1939,14 @@ static int qeth_l3_probe_device(struct ccwgroup_device *gdev) if (!card->cmd_wq) return -ENOMEM; - if (gdev->dev.type == &qeth_generic_devtype) { + if (gdev->dev.type) { rc = device_add_groups(&gdev->dev, qeth_l3_attr_groups); if (rc) { destroy_workqueue(card->cmd_wq); return rc; } + } else { + gdev->dev.type = &qeth_l3_devtype; } INIT_WORK(&card->rx_mode_work, qeth_l3_rx_mode_work); @@ -1955,7 +1957,7 @@ static void qeth_l3_remove_device(struct ccwgroup_device *cgdev) { struct qeth_card *card = dev_get_drvdata(&cgdev->dev); - if (cgdev->dev.type == &qeth_generic_devtype) + if (cgdev->dev.type != &qeth_l3_devtype) device_remove_groups(&cgdev->dev, qeth_l3_attr_groups); qeth_set_allowed_threads(card, 0, 1); @@ -2064,7 +2066,6 @@ static int qeth_l3_control_event(struct qeth_card *card, } const struct qeth_discipline qeth_l3_discipline = { - .devtype = &qeth_l3_devtype, .setup = qeth_l3_probe_device, .remove = qeth_l3_remove_device, .set_online = qeth_l3_set_online, -- cgit v1.2.3-59-g8ed1b