wireless: add back sysfs directory

commit 38c1a01cf10c6e4049b4ffbd4a6af655df2a46e1 upstream.

commit 35b2a113cb0298d4f9a1263338b456094a414057 broke (at least)
Fedora's networking scripts, they check for the existence of the
wireless directory. As the files aren't used, add the directory
back and not the files. Also do it for both drivers based on the
old wireless extensions and cfg80211, regardless of whether the
compat code for wext is built into cfg80211 or not.

Reported-by: Dave Airlie <airlied@gmail.com>
Reported-by: Bill Nottingham <notting@redhat.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 72607174ea5a4af158855f588b767b5c4c86d973..20bb371c909b2ef3eb191ac780fee793494f4010 100644 (file)
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -417,6 +417,17 @@ static struct attribute_group netstat_group = {
        .name  = "statistics",
        .attrs  = netstat_attrs,
 };
+
+#if IS_ENABLED(CONFIG_WIRELESS_EXT) || IS_ENABLED(CONFIG_CFG80211)
+static struct attribute *wireless_attrs[] = {
+       NULL
+};
+
+static struct attribute_group wireless_group = {
+       .name = "wireless",
+       .attrs = wireless_attrs,
+};
+#endif
 #endif /* CONFIG_SYSFS */
 
 #ifdef CONFIG_RPS
@@ -1397,6 +1408,15 @@ int netdev_register_kobject(struct net_device *net)
                groups++;
 
        *groups++ = &netstat_group;
+
+#if IS_ENABLED(CONFIG_WIRELESS_EXT) || IS_ENABLED(CONFIG_CFG80211)
+       if (net->ieee80211_ptr)
+               *groups++ = &wireless_group;
+#if IS_ENABLED(CONFIG_WIRELESS_EXT)
+       else if (net->wireless_handlers)
+               *groups++ = &wireless_group;
+#endif
+#endif
 #endif /* CONFIG_SYSFS */
 
        error = device_add(dev);