[PATCH net-next v3 16/31] qeth: use ndo_siocdevprivate

Arnd Bergmann
2021-07-27T13:48:13Z

qeth has both standard MII ioctls and custom SIOCDEVPRIVATE ones,
all of which work correctly with compat user space.

Move the private ones over to the new ndo_siocdevprivate callback.

Cc: Julian Wiedmann <jwi@linux.ibm.com>
Cc: Karsten Graul <kgraul@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: linux-s390@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/s390/net/qeth_core.h | 5 ++++-
drivers/s390/net/qeth_core_main.c | 35 ++++++++++++++++++++++---------
drivers/s390/net/qeth_l2_main.c | 1 +
drivers/s390/net/qeth_l3_main.c | 8 ++++---
4 files changed, 35 insertions(+), 14 deletions(-)

diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index c17031519900..535a60b3946d 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -771,7 +771,8 @@ struct qeth_discipline {
void (*remove) (struct ccwgroup_device *);
int (*set_online)(struct qeth_card *card, bool carrier_ok);
void (*set_offline)(struct qeth_card *card);
- int (*do_ioctl)(struct net_device *dev, struct ifreq *rq, int cmd);
+ int (*do_ioctl)(struct net_device *dev, struct ifreq *rq,
+ void __user *data, int cmd);
int (*control_event_handler)(struct qeth_card *card,
struct qeth_ipa_cmd *cmd);
};
@@ -1085,6 +1086,8 @@ int qeth_setadpparms_set_access_ctrl(struct qeth_card *card,
enum qeth_ipa_isolation_modes mode);

int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
+int qeth_siocdevprivate(struct net_device *dev, struct ifreq *rq,
+ void __user *data, int cmd);
void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 7f486212c6aa..5b973f377504 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -6590,21 +6590,42 @@ static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
.shutdown = qeth_core_shutdown,
};

-int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+int qeth_siocdevprivate(struct net_device *dev, struct ifreq *rq, void __user *data, int cmd)
{
struct qeth_card *card = dev->ml_priv;
- struct mii_ioctl_data *mii_data;
int rc = 0;

switch (cmd) {
case SIOC_QETH_ADP_SET_SNMP_CONTROL:
- rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
+ rc = qeth_snmp_command(card, data);
break;
case SIOC_QETH_GET_CARD_TYPE:
if ((IS_OSD(card) || IS_OSM(card) || IS_OSX(card)) &&
!IS_VM_NIC(card))
return 1;
return 0;
+ case SIOC_QETH_QUERY_OAT:
+ rc = qeth_query_oat_command(card, data);
+ break;
+ default:
+ if (card->discipline->do_ioctl)
+ rc = card->discipline->do_ioctl(dev, rq, data, cmd);
+ else
+ rc = -EOPNOTSUPP;
+ }
+ if (rc)
+ QETH_CARD_TEXT_(card, 2, "ioce%x", rc);
+ return rc;
+}
+EXPORT_SYMBOL_GPL(qeth_siocdevprivate);
+
+int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ struct qeth_card *card = dev->ml_priv;
+ struct mii_ioctl_data *mii_data;
+ int rc = 0;
+
+ switch (cmd) {
case SIOCGMIIPHY:
mii_data = if_mii(rq);
mii_data->phy_id = 0;
@@ -6617,14 +6638,8 @@ int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
mii_data->val_out = qeth_mdio_read(dev,
mii_data->phy_id, mii_data->reg_num);
break;
- case SIOC_QETH_QUERY_OAT:
- rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data);
- break;
default:
- if (card->discipline->do_ioctl)
- rc = card->discipline->do_ioctl(dev, rq, cmd);
- else
- rc = -EOPNOTSUPP;
+ return -EOPNOTSUPP;
}
if (rc)
QETH_CARD_TEXT_(card, 2, "ioce%x", rc);
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index 7fe0f1aea3cb..d50d3cba238e 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -837,6 +837,7 @@ static const struct net_device_ops qeth_l2_netdev_ops = {
.ndo_validate_addr = qeth_l2_validate_addr,
.ndo_set_rx_mode = qeth_l2_set_rx_mode,
.ndo_do_ioctl = qeth_do_ioctl,
+ .ndo_siocdevprivate = qeth_siocdevprivate,
.ndo_set_mac_address = qeth_l2_set_mac_address,
.ndo_vlan_rx_add_vid = qeth_l2_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = qeth_l2_vlan_rx_kill_vid,
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index 7cc59f4f046c..d7a895372f19 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -1512,7 +1512,7 @@ static int qeth_l3_arp_flush_cache(struct qeth_card *card)
return rc;
}

-static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, void __user *data, int cmd)
{
struct qeth_card *card = dev->ml_priv;
struct qeth_arp_cache_entry arp_entry;
@@ -1532,13 +1532,13 @@ static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
rc = -EPERM;
break;
}
- rc = qeth_l3_arp_query(card, rq->ifr_ifru.ifru_data);
+ rc = qeth_l3_arp_query(card, data);
break;
case SIOC_QETH_ARP_ADD_ENTRY:
case SIOC_QETH_ARP_REMOVE_ENTRY:
if (!capable(CAP_NET_ADMIN))
return -EPERM;
- if (copy_from_user(&arp_entry, rq->ifr_data, sizeof(arp_entry)))
+ if (copy_from_user(&arp_entry, data, sizeof(arp_entry)))
return -EFAULT;

arp_cmd = (cmd == SIOC_QETH_ARP_ADD_ENTRY) ?
@@ -1842,6 +1842,7 @@ static const struct net_device_ops qeth_l3_netdev_ops = {
.ndo_validate_addr = eth_validate_addr,
.ndo_set_rx_mode = qeth_l3_set_rx_mode,
.ndo_do_ioctl = qeth_do_ioctl,
+ .ndo_siocdevprivate = qeth_siocdevprivate,
.ndo_fix_features = qeth_fix_features,
.ndo_set_features = qeth_set_features,
.ndo_tx_timeout = qeth_tx_timeout,
@@ -1857,6 +1858,7 @@ static const struct net_device_ops qeth_l3_osa_netdev_ops = {
.ndo_validate_addr = eth_validate_addr,
.ndo_set_rx_mode = qeth_l3_set_rx_mode,
.ndo_do_ioctl = qeth_do_ioctl,
+ .ndo_siocdevprivate = qeth_siocdevprivate,
.ndo_fix_features = qeth_fix_features,
.ndo_set_features = qeth_set_features,
.ndo_tx_timeout = qeth_tx_timeout,
--
2.29.2