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s390/qeth: use dev->groups for common sysfs attributes

Browse source 
All qeth devices have a minimum set of sysfs attributes, and non-OSN
devices share a group of additional attributes. Depending on whether
the device is forced to use a specific discipline, the device_type then
specifies further attributes.

Shift the common attributes into dev->groups, so that the device_type
only contains the discipline-specific attributes. This avoids exposing
the common attributes to the disciplines, and nicely cleans up our
sysfs code.

While replacing the qeth_l*_*_device_attributes() helpers, switch from
sysfs_*_groups() to the more generic device_*_groups().

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Julian Wiedmann 2020-12-07 14:12:30 +01:00 committed by David S. Miller
parent 050663129a
commit 0b8da8110b
9 changed files with 30 additions and 76 deletions
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6
drivers/s390/net/qeth_core.h
View file

@ -1063,10 +1063,8 @@ 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 ethtool_ops qeth_osn_ethtool_ops;
extern const struct attribute_group *qeth_generic_attr_groups[];
extern const struct attribute_group *qeth_osn_attr_groups[];
extern const struct attribute_group qeth_device_attr_group;
extern const struct attribute_group qeth_device_blkt_group;
extern const struct attribute_group *qeth_dev_groups[];
extern const struct attribute_group *qeth_osn_dev_groups[];
extern const struct device_type qeth_generic_devtype;
const char *qeth_get_cardname_short(struct qeth_card *);

7
drivers/s390/net/qeth_core_main.c
View file

@ -6375,13 +6375,11 @@ void qeth_core_free_discipline(struct qeth_card *card)
const struct device_type qeth_generic_devtype = {
.name = "qeth_generic",
.groups = qeth_generic_attr_groups,
};
EXPORT_SYMBOL_GPL(qeth_generic_devtype);
static const struct device_type qeth_osn_devtype = {
.name = "qeth_osn",
.groups = qeth_osn_attr_groups,
};
#define DBF_NAME_LEN 20
@ -6561,6 +6559,11 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev)
if (rc)
goto err_chp_desc;
if (IS_OSN(card))
gdev->dev.groups = qeth_osn_dev_groups;
else
gdev->dev.groups = qeth_dev_groups;
enforced_disc = qeth_enforce_discipline(card);
switch (enforced_disc) {
case QETH_DISCIPLINE_UNDETERMINED:

41
drivers/s390/net/qeth_core_sys.c
View file

@ -640,23 +640,17 @@ static struct attribute *qeth_blkt_device_attrs[] = {
&dev_attr_inter_jumbo.attr,
NULL,
};
const struct attribute_group qeth_device_blkt_group = {
static const struct attribute_group qeth_dev_blkt_group = {
.name = "blkt",
.attrs = qeth_blkt_device_attrs,
};
EXPORT_SYMBOL_GPL(qeth_device_blkt_group);
static struct attribute *qeth_device_attrs[] = {
&dev_attr_state.attr,
&dev_attr_chpid.attr,
&dev_attr_if_name.attr,
&dev_attr_card_type.attr,
static struct attribute *qeth_dev_extended_attrs[] = {
&dev_attr_inbuf_size.attr,
&dev_attr_portno.attr,
&dev_attr_portname.attr,
&dev_attr_priority_queueing.attr,
&dev_attr_buffer_count.attr,
&dev_attr_recover.attr,
&dev_attr_performance_stats.attr,
&dev_attr_layer2.attr,
&dev_attr_isolation.attr,
@ -664,18 +658,12 @@ static struct attribute *qeth_device_attrs[] = {
&dev_attr_switch_attrs.attr,
NULL,
};
const struct attribute_group qeth_device_attr_group = {
.attrs = qeth_device_attrs,
};
EXPORT_SYMBOL_GPL(qeth_device_attr_group);
const struct attribute_group *qeth_generic_attr_groups[] = {
&qeth_device_attr_group,
&qeth_device_blkt_group,
NULL,
static const struct attribute_group qeth_dev_extended_group = {
.attrs = qeth_dev_extended_attrs,
};
static struct attribute *qeth_osn_device_attrs[] = {
static struct attribute *qeth_dev_attrs[] = {
&dev_attr_state.attr,
&dev_attr_chpid.attr,
&dev_attr_if_name.attr,
@ -684,10 +672,19 @@ static struct attribute *qeth_osn_device_attrs[] = {
&dev_attr_recover.attr,
NULL,
};
static struct attribute_group qeth_osn_device_attr_group = {
.attrs = qeth_osn_device_attrs,
static const struct attribute_group qeth_dev_group = {
.attrs = qeth_dev_attrs,
};
const struct attribute_group *qeth_osn_attr_groups[] = {
&qeth_osn_device_attr_group,
const struct attribute_group *qeth_osn_dev_groups[] = {
&qeth_dev_group,
NULL,
};
const struct attribute_group *qeth_dev_groups[] = {
&qeth_dev_group,
&qeth_dev_extended_group,
&qeth_dev_blkt_group,
NULL,
};

2
drivers/s390/net/qeth_l2.h
View file

@ -11,8 +11,6 @@
extern const struct attribute_group *qeth_l2_attr_groups[];
int qeth_l2_create_device_attributes(struct device *);
void qeth_l2_remove_device_attributes(struct device *);
int qeth_bridgeport_query_ports(struct qeth_card *card,
enum qeth_sbp_roles *role,
enum qeth_sbp_states *state);

4
drivers/s390/net/qeth_l2_main.c
View file

@ -2189,7 +2189,7 @@ static int qeth_l2_probe_device(struct ccwgroup_device *gdev)
mutex_init(&card->sbp_lock);
if (gdev->dev.type == &qeth_generic_devtype) {
rc = qeth_l2_create_device_attributes(&gdev->dev);
rc = device_add_groups(&gdev->dev, qeth_l2_attr_groups);
if (rc)
return rc;
}
@ -2203,7 +2203,7 @@ 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)
qeth_l2_remove_device_attributes(&gdev->dev);
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);

19
drivers/s390/net/qeth_l2_sys.c
View file

@ -376,26 +376,7 @@ static struct attribute_group qeth_l2_vnicc_attr_group = {
.name = "vnicc",
};
static const struct attribute_group *qeth_l2_only_attr_groups[] = {
&qeth_l2_bridgeport_attr_group,
&qeth_l2_vnicc_attr_group,
NULL,
};
int qeth_l2_create_device_attributes(struct device *dev)
{
return sysfs_create_groups(&dev->kobj, qeth_l2_only_attr_groups);
}
void qeth_l2_remove_device_attributes(struct device *dev)
{
sysfs_remove_groups(&dev->kobj, qeth_l2_only_attr_groups);
}
const struct attribute_group *qeth_l2_attr_groups[] = {
&qeth_device_attr_group,
&qeth_device_blkt_group,
/* l2 specific, see qeth_l2_only_attr_groups: */
&qeth_l2_bridgeport_attr_group,
&qeth_l2_vnicc_attr_group,
NULL,

2
drivers/s390/net/qeth_l3.h
View file

@ -103,8 +103,6 @@ extern const struct attribute_group *qeth_l3_attr_groups[];
int qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const u8 *addr,
char *buf);
int qeth_l3_create_device_attributes(struct device *);
void qeth_l3_remove_device_attributes(struct device *);
int qeth_l3_setrouting_v4(struct qeth_card *);
int qeth_l3_setrouting_v6(struct qeth_card *);
int qeth_l3_add_ipato_entry(struct qeth_card *, struct qeth_ipato_entry *);

4
drivers/s390/net/qeth_l3_main.c
View file

@ -1949,7 +1949,7 @@ static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
return -ENOMEM;
if (gdev->dev.type == &qeth_generic_devtype) {
rc = qeth_l3_create_device_attributes(&gdev->dev);
rc = device_add_groups(&gdev->dev, qeth_l3_attr_groups);
if (rc) {
destroy_workqueue(card->cmd_wq);
return rc;
@ -1965,7 +1965,7 @@ 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)
qeth_l3_remove_device_attributes(&cgdev->dev);
device_remove_groups(&cgdev->dev, qeth_l3_attr_groups);
qeth_set_allowed_threads(card, 0, 1);
wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);

21
drivers/s390/net/qeth_l3_sys.c
View file

@ -805,28 +805,7 @@ static const struct attribute_group qeth_device_rxip_group = {
.attrs = qeth_rxip_device_attrs,
};
static const struct attribute_group *qeth_l3_only_attr_groups[] = {
&qeth_l3_device_attr_group,
&qeth_device_ipato_group,
&qeth_device_vipa_group,
&qeth_device_rxip_group,
NULL,
};
int qeth_l3_create_device_attributes(struct device *dev)
{
return sysfs_create_groups(&dev->kobj, qeth_l3_only_attr_groups);
}
void qeth_l3_remove_device_attributes(struct device *dev)
{
sysfs_remove_groups(&dev->kobj, qeth_l3_only_attr_groups);
}
const struct attribute_group *qeth_l3_attr_groups[] = {
&qeth_device_attr_group,
&qeth_device_blkt_group,
/* l3 specific, see qeth_l3_only_attr_groups: */
&qeth_l3_device_attr_group,
&qeth_device_ipato_group,
&qeth_device_vipa_group,