wifi: remove iw_public_data from struct net_device

Given the previous patches, we no longer need the
struct iw_public_data etc., it's only used by the
old Intel drivers (and ps3_gelic creates it but
then doesn't use it). Remove all of that, including
the pointer in struct net_device.

Link: https://patch.msgid.link/20241007213525.8b2d52b60531.I6a27aaf30bded9a0977f07f47fba2bd31a3b3330@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

10 files changed, 4 insertions, 33 deletions

diff --git a/Documentation/networking/net_cachelines/net_device.rst b/Documentation/networking/net_cachelines/net_device.rst
index 22b07c814f4a..b7d1d4c7a1ab 100644
--- a/Documentation/networking/net_cachelines/net_device.rst
+++ b/Documentation/networking/net_cachelines/net_device.rst
@@ -51,7 +51,6 @@ struct_net_device_core_stats*       core_stats
 atomic_t                            carrier_up_count                                                
 atomic_t                            carrier_down_count                                              
 struct_iw_handler_def*              wireless_handlers                                               
-struct_iw_public_data*              wireless_data                                                   
 struct_ethtool_ops*                 ethtool_ops                                                     
 struct_l3mdev_ops*                  l3mdev_ops                                                      
 struct_ndisc_ops*                   ndisc_ops                                                       
diff --git a/drivers/net/ethernet/toshiba/ps3_gelic_wireless.c b/drivers/net/ethernet/toshiba/ps3_gelic_wireless.c
index 44488c153ea2..4fbe4b7cd12a 100644
--- a/drivers/net/ethernet/toshiba/ps3_gelic_wireless.c
+++ b/drivers/net/ethernet/toshiba/ps3_gelic_wireless.c
@@ -2566,7 +2566,6 @@ static void gelic_wl_setup_netdev_ops(struct net_device *netdev)
 
 	netdev->ethtool_ops = &gelic_wl_ethtool_ops;
 	netdev->netdev_ops = &gelic_wl_netdevice_ops;
-	netdev->wireless_data = &wl->wireless_data;
 	netdev->wireless_handlers = &gelic_wl_wext_handler_def;
 }
 
diff --git a/drivers/net/ethernet/toshiba/ps3_gelic_wireless.h b/drivers/net/ethernet/toshiba/ps3_gelic_wireless.h
index 1f203d1ae8db..dbabf538e10a 100644
--- a/drivers/net/ethernet/toshiba/ps3_gelic_wireless.h
+++ b/drivers/net/ethernet/toshiba/ps3_gelic_wireless.h
@@ -276,7 +276,6 @@ struct gelic_wl_info {
 	u8 active_bssid[ETH_ALEN]; /* associated bssid */
 	unsigned int essid_len;
 
-	struct iw_public_data wireless_data;
 	struct iw_statistics iwstat;
 };
 
diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2100.c b/drivers/net/wireless/intel/ipw2x00/ipw2100.c
index a89e06c1b8ee..15bf35f2de2a 100644
--- a/drivers/net/wireless/intel/ipw2x00/ipw2100.c
+++ b/drivers/net/wireless/intel/ipw2x00/ipw2100.c
@@ -6022,8 +6022,6 @@ static struct net_device *ipw2100_alloc_device(struct pci_dev *pci_dev,
 	dev->netdev_ops = &ipw2100_netdev_ops;
 	dev->ethtool_ops = &ipw2100_ethtool_ops;
 	dev->wireless_handlers = &ipw2100_wx_handler_def;
-	priv->wireless_data.libipw = priv->ieee;
-	dev->wireless_data = &priv->wireless_data;
 	dev->watchdog_timeo = 3 * HZ;
 	dev->irq = 0;
 	dev->min_mtu = 68;
diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2100.h b/drivers/net/wireless/intel/ipw2x00/ipw2100.h
index b34085ade3aa..6f81f509b9cb 100644
--- a/drivers/net/wireless/intel/ipw2x00/ipw2100.h
+++ b/drivers/net/wireless/intel/ipw2x00/ipw2100.h
@@ -554,8 +554,6 @@ struct ipw2100_priv {
 	struct net_device *net_dev;
 	struct iw_statistics wstats;
 
-	struct iw_public_data wireless_data;
-
 	struct tasklet_struct irq_tasklet;
 
 	struct delayed_work reset_work;
diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2200.c b/drivers/net/wireless/intel/ipw2x00/ipw2200.c
index c0e9d2109e34..be1d971b3d32 100644
--- a/drivers/net/wireless/intel/ipw2x00/ipw2200.c
+++ b/drivers/net/wireless/intel/ipw2x00/ipw2200.c
@@ -11645,7 +11645,6 @@ static int ipw_pci_probe(struct pci_dev *pdev,
 
 	net_dev->netdev_ops = &ipw_netdev_ops;
 	priv->ieee->spy_enabled = true;
-	net_dev->wireless_data = &priv->wireless_data;
 	net_dev->wireless_handlers = &ipw_wx_handler_def;
 	net_dev->ethtool_ops = &ipw_ethtool_ops;
 
diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2200.h b/drivers/net/wireless/intel/ipw2x00/ipw2200.h
index 46f119123b49..d3db54e6d37c 100644
--- a/drivers/net/wireless/intel/ipw2x00/ipw2200.h
+++ b/drivers/net/wireless/intel/ipw2x00/ipw2200.h
@@ -1274,8 +1274,6 @@ struct ipw_priv {
 
 	struct iw_statistics wstats;
 
-	struct iw_public_data wireless_data;
-
 	int user_requested_scan;
 	u8 direct_scan_ssid[IW_ESSID_MAX_SIZE];
 	u8 direct_scan_ssid_len;
diff --git a/drivers/net/wireless/intel/ipw2x00/libipw_spy.c b/drivers/net/wireless/intel/ipw2x00/libipw_spy.c
index 979aeb10aeeb..ba876e92f7f6 100644
--- a/drivers/net/wireless/intel/ipw2x00/libipw_spy.c
+++ b/drivers/net/wireless/intel/ipw2x00/libipw_spy.c
@@ -18,9 +18,10 @@
 
 static struct iw_spy_data *get_spydata(struct net_device *dev)
 {
-	if (dev->wireless_data && dev->wireless_data->libipw &&
-	    dev->wireless_data->libipw->spy_enabled)
-		return &dev->wireless_data->libipw->spy_data;
+	struct libipw_device *ieee = netdev_priv(dev);
+
+	if (ieee->spy_enabled)
+		return &ieee->spy_data;
 	return NULL;
 }
 
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index e87b5e488325..f0abed1e6e45 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1773,7 +1773,6 @@ enum netdev_reg_state {
  *	@wireless_handlers:	List of functions to handle Wireless Extensions,
  *				instead of ioctl,
  *				see <net/iw_handler.h> for details.
- *	@wireless_data:	Instance data managed by the core of wireless extensions
  *
  *	@netdev_ops:	Includes several pointers to callbacks,
  *			if one wants to override the ndo_*() functions
@@ -2150,7 +2149,6 @@ struct net_device {
 
 #ifdef CONFIG_WIRELESS_EXT
 	const struct iw_handler_def *wireless_handlers;
-	struct iw_public_data	*wireless_data;
 #endif
 	const struct ethtool_ops *ethtool_ops;
 #ifdef CONFIG_NET_L3_MASTER_DEV
diff --git a/include/net/iw_handler.h b/include/net/iw_handler.h
index a7b502958d27..fc44fcca1d5c 100644
--- a/include/net/iw_handler.h
+++ b/include/net/iw_handler.h
@@ -404,24 +404,6 @@ struct iw_spy_data {
 	u_char			spy_thr_under[IW_MAX_SPY];
 };
 
-/* --------------------- DEVICE WIRELESS DATA --------------------- */
-/*
- * This is all the wireless data specific to a device instance that
- * is managed by the core of Wireless Extensions or the 802.11 layer.
- * We only keep pointer to those structures, so that a driver is free
- * to share them between instances.
- * This structure should be initialised before registering the device.
- * Access to this data follow the same rules as any other struct net_device
- * data (i.e. valid as long as struct net_device exist, same locking rules).
- */
-/* Forward declaration */
-struct libipw_device;
-/* The struct */
-struct iw_public_data {
-	/* Legacy structure managed by the ipw2x00-specific IEEE 802.11 layer */
-	struct libipw_device *		libipw;
-};
-
 /**************************** PROTOTYPES ****************************/
 /*
  * Functions part of the Wireless Extensions (defined in net/wireless/wext-core.c).