[PATCH] hostap update

Create sysfs "device" files for hostap

I was writing some scripts to automatically build kismet source lines,
and I noticed that hostap devices don't have device files, unlike my
prism54 and ipw2200 cards:

$ ls -l /sys/class/net/eth0/device
/sys/class/net/eth0/device -> ../../../devices/pci0000:00/0000:00:1e.0/0000:02:01.0
$ ls -l /sys/class/net/wifi0
ls: /sys/class/net/wifi0/device: No such file or directory
$ ls -l /sys/class/net/wlan0
ls: /sys/class/net/wlan0/device: No such file or directory

The following (quite small) patch makes sure that both the wlan and wifi
net devices have that pointer to the bus device.

This way, I can do things like

        for i in /sys/class/net/*; do
                if ! [ -e $i/device/drive ]; then
                        continue;
                fi;
                driver=$(basename $(readlink $i/device/driver))
                case $driver in
                        hostap*)
                                echo -- hostap,$i,$i-$driver
                                break;
                        ipw2?00)
                                echo -- $driver,$i,$i-$driver
                                break;
                        prism54)
                                echo prism54g,$i
                esac
        done

Which should generate a working set of source lines for kismet no matter
what order I plug the cards in.

It might also be handy to have a link between the two net devices, but
that's a patch for another day.

That patch is against 2.6.13-rc1-mm1.

-- Dave

Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Jouni Malinen <jkmaline@cc.hut.fi>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

drivers/net/wireless/hostap/hostap.c

@@ -137,6 +137,7 @@ struct net_device * hostap_add_interface(struct local_info *local,
 	if (strchr(dev->name, '%'))
 		ret = dev_alloc_name(dev, dev->name);
 
+	SET_NETDEV_DEV(dev, mdev->class_dev.dev);
 	if (ret >= 0)
 		ret = register_netdevice(dev);
 

drivers/net/wireless/hostap/hostap_cs.c

@@ -725,7 +725,8 @@ static int prism2_config(dev_link_t *link)
 	}
 
 	/* Need to allocate net_device before requesting IRQ handler */
-	dev = prism2_init_local_data(&prism2_pccard_funcs, 0);
+	dev = prism2_init_local_data(&prism2_pccard_funcs, 0,
+				     &handle_to_dev(link->handle));
 	if (dev == NULL)
 		goto failed;
 	link->priv = dev;

drivers/net/wireless/hostap/hostap_hw.c

@@ -3268,7 +3268,8 @@ static void prism2_clear_set_tim_queue(local_info_t *local)
 
 
 static struct net_device *
-prism2_init_local_data(struct prism2_helper_functions *funcs, int card_idx)
+prism2_init_local_data(struct prism2_helper_functions *funcs, int card_idx,
+		       struct device *sdev)
 {
 	struct net_device *dev;
 	struct hostap_interface *iface;
@@ -3439,6 +3440,7 @@ while (0)
 
 	rtnl_lock();
 	ret = dev_alloc_name(dev, "wifi%d");
+	SET_NETDEV_DEV(dev, sdev);
 	if (ret >= 0)
 		ret = register_netdevice(dev);
 	rtnl_unlock();

drivers/net/wireless/hostap/hostap_pci.c

@@ -308,7 +308,8 @@ static int prism2_pci_probe(struct pci_dev *pdev,
 	pci_set_master(pdev);
 #endif /* PRISM2_BUS_MASTER */
 
-	dev = prism2_init_local_data(&prism2_pci_funcs, cards_found);
+	dev = prism2_init_local_data(&prism2_pci_funcs, cards_found,
+				     &pdev->dev);
 	if (dev == NULL)
 		goto fail;
 	iface = netdev_priv(dev);

drivers/net/wireless/hostap/hostap_plx.c

@@ -522,7 +522,8 @@ static int prism2_plx_probe(struct pci_dev *pdev,
 		 * not present; but are there really such cards in use(?) */
 	}
 
-	dev = prism2_init_local_data(&prism2_plx_funcs, cards_found);
+	dev = prism2_init_local_data(&prism2_plx_funcs, cards_found,
+				     &pdev->dev);
 	if (dev == NULL)
 		goto fail;
 	iface = netdev_priv(dev);