wext: refactor

Refactor wext to
 * split out iwpriv handling
 * split out iwspy handling
 * split out procfs support
 * allow cfg80211 to have wireless extensions compat code
   w/o CONFIG_WIRELESS_EXT

After this, drivers need to
 - select WIRELESS_EXT	- for wext support
 - select WEXT_PRIV	- for iwpriv support
 - select WEXT_SPY	- for iwspy support

except cfg80211 -- which gets new hooks in wext-core.c
and can then get wext handlers without CONFIG_WIRELESS_EXT.

Wireless extensions procfs support is auto-selected
based on PROC_FS and anything that requires the wext core
(i.e. WIRELESS_EXT or CFG80211_WEXT).

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 3d874c620219..241ea14d6df8 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1171,6 +1171,10 @@ struct wiphy {
         struct net *_net;
 #endif
 
+#ifdef CONFIG_CFG80211_WEXT
+        const struct iw_handler_def *wext;
+#endif
+
         char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
 };
 
@@ -1345,7 +1349,7 @@ struct wireless_dev {
         struct cfg80211_internal_bss *auth_bsses[MAX_AUTH_BSSES];
         struct cfg80211_internal_bss *current_bss; /* associated / joined */
 
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_CFG80211_WEXT
         /* wext data */
         struct {
                 struct cfg80211_ibss_params ibss;