diff mbox series

[v2,1/6] cfg80211: Avoid clashing function prototypes

Message ID	c8239f5813dec6e5cfb554ca92b1783a18ac5537.1666894751.git.gustavoars@kernel.org
State	New
Headers	Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Date: Thu, 27 Oct 2022 15:17:47 -0500 From: "Gustavo A. R. Silva" <gustavoars@kernel.org> To: Stanislav Yakovlev <stas.yakovlev@gmail.com>, Johannes Berg <johannes@sipsolutions.net>, Kalle Valo <kvalo@kernel.org>, "David S. Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com> Cc: netdev@vger.kernel.org, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, Kees Cook <keescook@chromium.org>, "Gustavo A. R. Silva" <gustavoars@kernel.org>, linux-hardening@vger.kernel.org Subject: [PATCH v2 1/6] cfg80211: Avoid clashing function prototypes Message-ID: <c8239f5813dec6e5cfb554ca92b1783a18ac5537.1666894751.git.gustavoars@kernel.org> References: <cover.1666894751.git.gustavoars@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <cover.1666894751.git.gustavoars@kernel.org> Precedence: bulk
Series	Avoid clashing function prototypes \| [v2,0/6] Avoid clashing function prototypes [v2,1/6] cfg80211: Avoid clashing function prototypes [v2,2/6] hostap: Avoid clashing function prototypes [v2,3/6] zd1201: Avoid clashing function prototypes [v2,4/6] airo: Avoid clashing function prototypes [v2,5/6] bna: Avoid clashing function prototypes [v2,6/6] staging: ks7010: Avoid clashing function prototypes

Commit Message

Gustavo A. R. Silva Oct. 27, 2022, 8:17 p.m. UTC

  When built with Control Flow Integrity, function prototypes between
caller and function declaration must match. These mismatches are visible
at compile time with the new -Wcast-function-type-strict in Clang[1].

Fix a total of 63 warnings like these:

drivers/net/wireless/intersil/orinoco/wext.c:1379:27: warning: cast from 'int (*)(struct net_device *, struct iw_request_info *, struct iw_param *, char *)' to 'iw_handler' (aka 'int (*)(struct net_device *, struct iw_request_info *, union iwreq_data *, char *)') converts to incompatible function type [-Wcast-function-type-strict]
        IW_HANDLER(SIOCGIWPOWER,        (iw_handler)orinoco_ioctl_getpower),
                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

../net/wireless/wext-compat.c:1607:33: warning: cast from 'int (*)(struct net_device *, struct iw_request_info *, struct iw_point *, char *)' to 'iw_handler' (aka 'int (*)(struct net_device *, struct iw_request_info *, union iwreq_data *, char *)') converts to incompatible function type [-Wcast-function-type-strict]
        [IW_IOCTL_IDX(SIOCSIWGENIE)]    = (iw_handler) cfg80211_wext_siwgenie,
                                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

../drivers/net/wireless/intersil/orinoco/wext.c:1390:27: error: incompatible function pointer types initializing 'const iw_handler' (aka 'int (*const)(struct net_device *, struct iw_request_info *, union iwreq_data *, char *)') with an expression of type 'int (struct net_device *, struct iw_request_info *, struct iw_param *, char *)' [-Wincompatible-function-pointer-types]
        IW_HANDLER(SIOCGIWRETRY,        cfg80211_wext_giwretry),
                                        ^~~~~~~~~~~~~~~~~~~~~~

The cfg80211 Wireless Extension handler callbacks (iw_handler) use a
union for the data argument. Actually use the union and perform explicit
member selection in the function body instead of having a function
prototype mismatch. There are no resulting binary differences
before/after changes.

Link: https://github.com/KSPP/linux/issues/234
Link: https://reviews.llvm.org/D134831 [1]
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
---
Changes in v2:
 - Squash previous patches 1, 2 and 3 into a single patch cfg80211.
 - Revert changes in orinoco_private_handler[].
 - Use IW_HANDLER in cfg80211_handlers instead of open-coded
	[IW_IOCTL_IDX(SIOCGIWRETRY)]    = cfg80211_wext_giwretry, ...

v1:
 - Link: https://lore.kernel.org/linux-hardening/291de76bc7cd5c21dc2f2471382ab0caaf625b22.1666038048.git.gustavoars@kernel.org/

 drivers/net/wireless/intel/ipw2x00/ipw2200.c |   2 +-
 drivers/net/wireless/intersil/orinoco/wext.c | 113 +++++++-----
 include/net/cfg80211-wext.h                  |  20 +--
 net/wireless/scan.c                          |   3 +-
 net/wireless/wext-compat.c                   | 180 +++++++++----------
 net/wireless/wext-compat.h                   |   8 +-
 net/wireless/wext-sme.c                      |   5 +-
 7 files changed, 166 insertions(+), 165 deletions(-)

Comments

Johannes Berg Oct. 28, 2022, 8:22 a.m. UTC | #1

Hm.

If you're splitting out per driver,

> +++ b/drivers/net/wireless/intel/ipw2x00/ipw2200.c
> @@ -9870,7 +9870,7 @@ static int ipw_wx_sw_reset(struct net_device *dev,
>  
>  /* Rebase the WE IOCTLs to zero for the handler array */
>  static iw_handler ipw_wx_handlers[] = {
> -	IW_HANDLER(SIOCGIWNAME, (iw_handler)cfg80211_wext_giwname),
> +	IW_HANDLER(SIOCGIWNAME, cfg80211_wext_giwname),

I can see how this (and similar) still belongs into this patch since
it's related to the cfg80211 change, but

> +++ b/drivers/net/wireless/intersil/orinoco/wext.c
> @@ -154,9 +154,10 @@ static struct iw_statistics *orinoco_get_wireless_stats(struct net_device *dev)
>  
>  static int orinoco_ioctl_setwap(struct net_device *dev,
>  				struct iw_request_info *info,
> -				struct sockaddr *ap_addr,
> +				union iwreq_data *wrqu,
>  				char *extra)
>  {
> +	struct sockaddr *ap_addr = &wrqu->ap_addr;

why this (and similar) too?

The same changes in hostap, zd1201 and airo you did split out?

johannes

Gustavo A. R. Silva Oct. 31, 2022, 5:01 p.m. UTC | #2

On 10/28/22 03:22, Johannes Berg wrote:
> Hm.
> 
> If you're splitting out per driver,
> 
>> +++ b/drivers/net/wireless/intel/ipw2x00/ipw2200.c
>> @@ -9870,7 +9870,7 @@ static int ipw_wx_sw_reset(struct net_device *dev,
>>   
>>   /* Rebase the WE IOCTLs to zero for the handler array */
>>   static iw_handler ipw_wx_handlers[] = {
>> -	IW_HANDLER(SIOCGIWNAME, (iw_handler)cfg80211_wext_giwname),
>> +	IW_HANDLER(SIOCGIWNAME, cfg80211_wext_giwname),
> 
> I can see how this (and similar) still belongs into this patch since
> it's related to the cfg80211 change, but
> 
>> +++ b/drivers/net/wireless/intersil/orinoco/wext.c
>> @@ -154,9 +154,10 @@ static struct iw_statistics *orinoco_get_wireless_stats(struct net_device *dev)
>>   
>>   static int orinoco_ioctl_setwap(struct net_device *dev,
>>   				struct iw_request_info *info,
>> -				struct sockaddr *ap_addr,
>> +				union iwreq_data *wrqu,
>>   				char *extra)
>>   {
>> +	struct sockaddr *ap_addr = &wrqu->ap_addr;
> 
> why this (and similar) too?

mmh... yeah; orinoco should be a separate patch. :)

Thanks
--
Gustavo

Gustavo A. R. Silva Oct. 31, 2022, 9:03 p.m. UTC | #3

On Fri, Oct 28, 2022 at 10:22:47AM +0200, Johannes Berg wrote:
> Hm.
> 
> If you're splitting out per driver,
> 
> > +++ b/drivers/net/wireless/intel/ipw2x00/ipw2200.c
> > @@ -9870,7 +9870,7 @@ static int ipw_wx_sw_reset(struct net_device *dev,
> >  
> >  /* Rebase the WE IOCTLs to zero for the handler array */
> >  static iw_handler ipw_wx_handlers[] = {
> > -	IW_HANDLER(SIOCGIWNAME, (iw_handler)cfg80211_wext_giwname),
> > +	IW_HANDLER(SIOCGIWNAME, cfg80211_wext_giwname),
> 
> I can see how this (and similar) still belongs into this patch since
> it's related to the cfg80211 change, but
> 
> > +++ b/drivers/net/wireless/intersil/orinoco/wext.c
> > @@ -154,9 +154,10 @@ static struct iw_statistics *orinoco_get_wireless_stats(struct net_device *dev)
> >  
> >  static int orinoco_ioctl_setwap(struct net_device *dev,
> >  				struct iw_request_info *info,
> > -				struct sockaddr *ap_addr,
> > +				union iwreq_data *wrqu,
> >  				char *extra)
> >  {
> > +	struct sockaddr *ap_addr = &wrqu->ap_addr;
> 
> why this (and similar) too?

mmh... yeah; orinoco should be a separate patch. :)

Thanks
--
Gustavo

diff mbox series

Patch

diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2200.c b/drivers/net/wireless/intel/ipw2x00/ipw2200.c
index 5b483de18c81..3158f91b18d5 100644
--- a/drivers/net/wireless/intel/ipw2x00/ipw2200.c
+++ b/drivers/net/wireless/intel/ipw2x00/ipw2200.c
@@ -9870,7 +9870,7 @@  static int ipw_wx_sw_reset(struct net_device *dev,
 
 /* Rebase the WE IOCTLs to zero for the handler array */
 static iw_handler ipw_wx_handlers[] = {
-	IW_HANDLER(SIOCGIWNAME, (iw_handler)cfg80211_wext_giwname),
+	IW_HANDLER(SIOCGIWNAME, cfg80211_wext_giwname),
 	IW_HANDLER(SIOCSIWFREQ, ipw_wx_set_freq),
 	IW_HANDLER(SIOCGIWFREQ, ipw_wx_get_freq),
 	IW_HANDLER(SIOCSIWMODE, ipw_wx_set_mode),
diff --git a/drivers/net/wireless/intersil/orinoco/wext.c b/drivers/net/wireless/intersil/orinoco/wext.c
index 4a01260027bc..d79d72af32a5 100644
--- a/drivers/net/wireless/intersil/orinoco/wext.c
+++ b/drivers/net/wireless/intersil/orinoco/wext.c
@@ -154,9 +154,10 @@  static struct iw_statistics *orinoco_get_wireless_stats(struct net_device *dev)
 
 static int orinoco_ioctl_setwap(struct net_device *dev,
 				struct iw_request_info *info,
-				struct sockaddr *ap_addr,
+				union iwreq_data *wrqu,
 				char *extra)
 {
+	struct sockaddr *ap_addr = &wrqu->ap_addr;
 	struct orinoco_private *priv = ndev_priv(dev);
 	int err = -EINPROGRESS;		/* Call commit handler */
 	unsigned long flags;
@@ -213,9 +214,10 @@  static int orinoco_ioctl_setwap(struct net_device *dev,
 
 static int orinoco_ioctl_getwap(struct net_device *dev,
 				struct iw_request_info *info,
-				struct sockaddr *ap_addr,
+				union iwreq_data *wrqu,
 				char *extra)
 {
+	struct sockaddr *ap_addr = &wrqu->ap_addr;
 	struct orinoco_private *priv = ndev_priv(dev);
 
 	int err = 0;
@@ -234,9 +236,10 @@  static int orinoco_ioctl_getwap(struct net_device *dev,
 
 static int orinoco_ioctl_setiwencode(struct net_device *dev,
 				     struct iw_request_info *info,
-				     struct iw_point *erq,
+				     union iwreq_data *wrqu,
 				     char *keybuf)
 {
+	struct iw_point *erq = &wrqu->encoding;
 	struct orinoco_private *priv = ndev_priv(dev);
 	int index = (erq->flags & IW_ENCODE_INDEX) - 1;
 	int setindex = priv->tx_key;
@@ -325,9 +328,10 @@  static int orinoco_ioctl_setiwencode(struct net_device *dev,
 
 static int orinoco_ioctl_getiwencode(struct net_device *dev,
 				     struct iw_request_info *info,
-				     struct iw_point *erq,
+				     union iwreq_data *wrqu,
 				     char *keybuf)
 {
+	struct iw_point *erq = &wrqu->encoding;
 	struct orinoco_private *priv = ndev_priv(dev);
 	int index = (erq->flags & IW_ENCODE_INDEX) - 1;
 	unsigned long flags;
@@ -361,9 +365,10 @@  static int orinoco_ioctl_getiwencode(struct net_device *dev,
 
 static int orinoco_ioctl_setessid(struct net_device *dev,
 				  struct iw_request_info *info,
-				  struct iw_point *erq,
+				  union iwreq_data *wrqu,
 				  char *essidbuf)
 {
+	struct iw_point *erq = &wrqu->essid;
 	struct orinoco_private *priv = ndev_priv(dev);
 	unsigned long flags;
 
@@ -392,9 +397,10 @@  static int orinoco_ioctl_setessid(struct net_device *dev,
 
 static int orinoco_ioctl_getessid(struct net_device *dev,
 				  struct iw_request_info *info,
-				  struct iw_point *erq,
+				  union iwreq_data *wrqu,
 				  char *essidbuf)
 {
+	struct iw_point *erq = &wrqu->essid;
 	struct orinoco_private *priv = ndev_priv(dev);
 	int active;
 	int err = 0;
@@ -420,9 +426,10 @@  static int orinoco_ioctl_getessid(struct net_device *dev,
 
 static int orinoco_ioctl_setfreq(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_freq *frq,
+				 union iwreq_data *wrqu,
 				 char *extra)
 {
+	struct iw_freq *frq = &wrqu->freq;
 	struct orinoco_private *priv = ndev_priv(dev);
 	int chan = -1;
 	unsigned long flags;
@@ -469,9 +476,10 @@  static int orinoco_ioctl_setfreq(struct net_device *dev,
 
 static int orinoco_ioctl_getfreq(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_freq *frq,
+				 union iwreq_data *wrqu,
 				 char *extra)
 {
+	struct iw_freq *frq = &wrqu->freq;
 	struct orinoco_private *priv = ndev_priv(dev);
 	int tmp;
 
@@ -488,9 +496,10 @@  static int orinoco_ioctl_getfreq(struct net_device *dev,
 
 static int orinoco_ioctl_getsens(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_param *srq,
+				 union iwreq_data *wrqu,
 				 char *extra)
 {
+	struct iw_param *srq = &wrqu->sens;
 	struct orinoco_private *priv = ndev_priv(dev);
 	struct hermes *hw = &priv->hw;
 	u16 val;
@@ -517,9 +526,10 @@  static int orinoco_ioctl_getsens(struct net_device *dev,
 
 static int orinoco_ioctl_setsens(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_param *srq,
+				 union iwreq_data *wrqu,
 				 char *extra)
 {
+	struct iw_param *srq = &wrqu->sens;
 	struct orinoco_private *priv = ndev_priv(dev);
 	int val = srq->value;
 	unsigned long flags;
@@ -540,9 +550,10 @@  static int orinoco_ioctl_setsens(struct net_device *dev,
 
 static int orinoco_ioctl_setrate(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_param *rrq,
+				 union iwreq_data *wrqu,
 				 char *extra)
 {
+	struct iw_param *rrq = &wrqu->bitrate;
 	struct orinoco_private *priv = ndev_priv(dev);
 	int ratemode;
 	int bitrate; /* 100s of kilobits */
@@ -574,9 +585,10 @@  static int orinoco_ioctl_setrate(struct net_device *dev,
 
 static int orinoco_ioctl_getrate(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_param *rrq,
+				 union iwreq_data *wrqu,
 				 char *extra)
 {
+	struct iw_param *rrq = &wrqu->bitrate;
 	struct orinoco_private *priv = ndev_priv(dev);
 	int err = 0;
 	int bitrate, automatic;
@@ -610,9 +622,10 @@  static int orinoco_ioctl_getrate(struct net_device *dev,
 
 static int orinoco_ioctl_setpower(struct net_device *dev,
 				  struct iw_request_info *info,
-				  struct iw_param *prq,
+				  union iwreq_data *wrqu,
 				  char *extra)
 {
+	struct iw_param *prq = &wrqu->power;
 	struct orinoco_private *priv = ndev_priv(dev);
 	int err = -EINPROGRESS;		/* Call commit handler */
 	unsigned long flags;
@@ -664,9 +677,10 @@  static int orinoco_ioctl_setpower(struct net_device *dev,
 
 static int orinoco_ioctl_getpower(struct net_device *dev,
 				  struct iw_request_info *info,
-				  struct iw_param *prq,
+				  union iwreq_data *wrqu,
 				  char *extra)
 {
+	struct iw_param *prq = &wrqu->power;
 	struct orinoco_private *priv = ndev_priv(dev);
 	struct hermes *hw = &priv->hw;
 	int err = 0;
@@ -1097,7 +1111,7 @@  static int orinoco_ioctl_set_mlme(struct net_device *dev,
 
 static int orinoco_ioctl_reset(struct net_device *dev,
 			       struct iw_request_info *info,
-			       void *wrqu,
+			       union iwreq_data *wrqu,
 			       char *extra)
 {
 	struct orinoco_private *priv = ndev_priv(dev);
@@ -1121,7 +1135,7 @@  static int orinoco_ioctl_reset(struct net_device *dev,
 
 static int orinoco_ioctl_setibssport(struct net_device *dev,
 				     struct iw_request_info *info,
-				     void *wrqu,
+				     union iwreq_data *wrqu,
 				     char *extra)
 
 {
@@ -1143,7 +1157,7 @@  static int orinoco_ioctl_setibssport(struct net_device *dev,
 
 static int orinoco_ioctl_getibssport(struct net_device *dev,
 				     struct iw_request_info *info,
-				     void *wrqu,
+				     union iwreq_data *wrqu,
 				     char *extra)
 {
 	struct orinoco_private *priv = ndev_priv(dev);
@@ -1155,7 +1169,7 @@  static int orinoco_ioctl_getibssport(struct net_device *dev,
 
 static int orinoco_ioctl_setport3(struct net_device *dev,
 				  struct iw_request_info *info,
-				  void *wrqu,
+				  union iwreq_data *wrqu,
 				  char *extra)
 {
 	struct orinoco_private *priv = ndev_priv(dev);
@@ -1201,7 +1215,7 @@  static int orinoco_ioctl_setport3(struct net_device *dev,
 
 static int orinoco_ioctl_getport3(struct net_device *dev,
 				  struct iw_request_info *info,
-				  void *wrqu,
+				  union iwreq_data *wrqu,
 				  char *extra)
 {
 	struct orinoco_private *priv = ndev_priv(dev);
@@ -1213,7 +1227,7 @@  static int orinoco_ioctl_getport3(struct net_device *dev,
 
 static int orinoco_ioctl_setpreamble(struct net_device *dev,
 				     struct iw_request_info *info,
-				     void *wrqu,
+				     union iwreq_data *wrqu,
 				     char *extra)
 {
 	struct orinoco_private *priv = ndev_priv(dev);
@@ -1245,7 +1259,7 @@  static int orinoco_ioctl_setpreamble(struct net_device *dev,
 
 static int orinoco_ioctl_getpreamble(struct net_device *dev,
 				     struct iw_request_info *info,
-				     void *wrqu,
+				     union iwreq_data *wrqu,
 				     char *extra)
 {
 	struct orinoco_private *priv = ndev_priv(dev);
@@ -1265,9 +1279,10 @@  static int orinoco_ioctl_getpreamble(struct net_device *dev,
  * For Wireless Tools 25 and 26 append "dummy" are the end. */
 static int orinoco_ioctl_getrid(struct net_device *dev,
 				struct iw_request_info *info,
-				struct iw_point *data,
+				union iwreq_data *wrqu,
 				char *extra)
 {
+	struct iw_point *data = &wrqu->data;
 	struct orinoco_private *priv = ndev_priv(dev);
 	struct hermes *hw = &priv->hw;
 	int rid = data->flags;
@@ -1303,7 +1318,7 @@  static int orinoco_ioctl_getrid(struct net_device *dev,
 /* Commit handler, called after set operations */
 static int orinoco_ioctl_commit(struct net_device *dev,
 				struct iw_request_info *info,
-				void *wrqu,
+				union iwreq_data *wrqu,
 				char *extra)
 {
 	struct orinoco_private *priv = ndev_priv(dev);
@@ -1347,36 +1362,36 @@  static const struct iw_priv_args orinoco_privtab[] = {
  */
 
 static const iw_handler	orinoco_handler[] = {
-	IW_HANDLER(SIOCSIWCOMMIT,	(iw_handler)orinoco_ioctl_commit),
-	IW_HANDLER(SIOCGIWNAME,		(iw_handler)cfg80211_wext_giwname),
-	IW_HANDLER(SIOCSIWFREQ,		(iw_handler)orinoco_ioctl_setfreq),
-	IW_HANDLER(SIOCGIWFREQ,		(iw_handler)orinoco_ioctl_getfreq),
-	IW_HANDLER(SIOCSIWMODE,		(iw_handler)cfg80211_wext_siwmode),
-	IW_HANDLER(SIOCGIWMODE,		(iw_handler)cfg80211_wext_giwmode),
-	IW_HANDLER(SIOCSIWSENS,		(iw_handler)orinoco_ioctl_setsens),
-	IW_HANDLER(SIOCGIWSENS,		(iw_handler)orinoco_ioctl_getsens),
-	IW_HANDLER(SIOCGIWRANGE,	(iw_handler)cfg80211_wext_giwrange),
+	IW_HANDLER(SIOCSIWCOMMIT,	orinoco_ioctl_commit),
+	IW_HANDLER(SIOCGIWNAME,		cfg80211_wext_giwname),
+	IW_HANDLER(SIOCSIWFREQ,		orinoco_ioctl_setfreq),
+	IW_HANDLER(SIOCGIWFREQ,		orinoco_ioctl_getfreq),
+	IW_HANDLER(SIOCSIWMODE,		cfg80211_wext_siwmode),
+	IW_HANDLER(SIOCGIWMODE,		cfg80211_wext_giwmode),
+	IW_HANDLER(SIOCSIWSENS,		orinoco_ioctl_setsens),
+	IW_HANDLER(SIOCGIWSENS,		orinoco_ioctl_getsens),
+	IW_HANDLER(SIOCGIWRANGE,	cfg80211_wext_giwrange),
 	IW_HANDLER(SIOCSIWSPY,		iw_handler_set_spy),
 	IW_HANDLER(SIOCGIWSPY,		iw_handler_get_spy),
 	IW_HANDLER(SIOCSIWTHRSPY,	iw_handler_set_thrspy),
 	IW_HANDLER(SIOCGIWTHRSPY,	iw_handler_get_thrspy),
-	IW_HANDLER(SIOCSIWAP,		(iw_handler)orinoco_ioctl_setwap),
-	IW_HANDLER(SIOCGIWAP,		(iw_handler)orinoco_ioctl_getwap),
-	IW_HANDLER(SIOCSIWSCAN,		(iw_handler)cfg80211_wext_siwscan),
-	IW_HANDLER(SIOCGIWSCAN,		(iw_handler)cfg80211_wext_giwscan),
-	IW_HANDLER(SIOCSIWESSID,	(iw_handler)orinoco_ioctl_setessid),
-	IW_HANDLER(SIOCGIWESSID,	(iw_handler)orinoco_ioctl_getessid),
-	IW_HANDLER(SIOCSIWRATE,		(iw_handler)orinoco_ioctl_setrate),
-	IW_HANDLER(SIOCGIWRATE,		(iw_handler)orinoco_ioctl_getrate),
-	IW_HANDLER(SIOCSIWRTS,		(iw_handler)cfg80211_wext_siwrts),
-	IW_HANDLER(SIOCGIWRTS,		(iw_handler)cfg80211_wext_giwrts),
-	IW_HANDLER(SIOCSIWFRAG,		(iw_handler)cfg80211_wext_siwfrag),
-	IW_HANDLER(SIOCGIWFRAG,		(iw_handler)cfg80211_wext_giwfrag),
-	IW_HANDLER(SIOCGIWRETRY,	(iw_handler)cfg80211_wext_giwretry),
-	IW_HANDLER(SIOCSIWENCODE,	(iw_handler)orinoco_ioctl_setiwencode),
-	IW_HANDLER(SIOCGIWENCODE,	(iw_handler)orinoco_ioctl_getiwencode),
-	IW_HANDLER(SIOCSIWPOWER,	(iw_handler)orinoco_ioctl_setpower),
-	IW_HANDLER(SIOCGIWPOWER,	(iw_handler)orinoco_ioctl_getpower),
+	IW_HANDLER(SIOCSIWAP,		orinoco_ioctl_setwap),
+	IW_HANDLER(SIOCGIWAP,		orinoco_ioctl_getwap),
+	IW_HANDLER(SIOCSIWSCAN,		cfg80211_wext_siwscan),
+	IW_HANDLER(SIOCGIWSCAN,		cfg80211_wext_giwscan),
+	IW_HANDLER(SIOCSIWESSID,	orinoco_ioctl_setessid),
+	IW_HANDLER(SIOCGIWESSID,	orinoco_ioctl_getessid),
+	IW_HANDLER(SIOCSIWRATE,		orinoco_ioctl_setrate),
+	IW_HANDLER(SIOCGIWRATE,		orinoco_ioctl_getrate),
+	IW_HANDLER(SIOCSIWRTS,		cfg80211_wext_siwrts),
+	IW_HANDLER(SIOCGIWRTS,		cfg80211_wext_giwrts),
+	IW_HANDLER(SIOCSIWFRAG,		cfg80211_wext_siwfrag),
+	IW_HANDLER(SIOCGIWFRAG,		cfg80211_wext_giwfrag),
+	IW_HANDLER(SIOCGIWRETRY,	cfg80211_wext_giwretry),
+	IW_HANDLER(SIOCSIWENCODE,	orinoco_ioctl_setiwencode),
+	IW_HANDLER(SIOCGIWENCODE,	orinoco_ioctl_getiwencode),
+	IW_HANDLER(SIOCSIWPOWER,	orinoco_ioctl_setpower),
+	IW_HANDLER(SIOCGIWPOWER,	orinoco_ioctl_getpower),
 	IW_HANDLER(SIOCSIWGENIE,	orinoco_ioctl_set_genie),
 	IW_HANDLER(SIOCGIWGENIE,	orinoco_ioctl_get_genie),
 	IW_HANDLER(SIOCSIWMLME,		orinoco_ioctl_set_mlme),
diff --git a/include/net/cfg80211-wext.h b/include/net/cfg80211-wext.h
index ad77caf2ffde..0ee36d97e068 100644
--- a/include/net/cfg80211-wext.h
+++ b/include/net/cfg80211-wext.h
@@ -19,34 +19,34 @@ 
  */
 int cfg80211_wext_giwname(struct net_device *dev,
 			  struct iw_request_info *info,
-			  char *name, char *extra);
+			  union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
-			  u32 *mode, char *extra);
+			  union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
-			  u32 *mode, char *extra);
+			  union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_siwscan(struct net_device *dev,
 			  struct iw_request_info *info,
 			  union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_giwscan(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_point *data, char *extra);
+			  union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_giwrange(struct net_device *dev,
 			   struct iw_request_info *info,
-			   struct iw_point *data, char *extra);
+			   union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_siwrts(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct iw_param *rts, char *extra);
+			 union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_giwrts(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct iw_param *rts, char *extra);
+			 union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_siwfrag(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_param *frag, char *extra);
+			  union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_giwfrag(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_param *frag, char *extra);
+			  union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_giwretry(struct net_device *dev,
 			   struct iw_request_info *info,
-			   struct iw_param *retry, char *extra);
+			   union iwreq_data *wrqu, char *extra);
 
 #endif /* __NET_CFG80211_WEXT_H */
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 806a5f1330ff..853619bc0f1a 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -3229,8 +3229,9 @@  static int ieee80211_scan_results(struct cfg80211_registered_device *rdev,
 
 int cfg80211_wext_giwscan(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_point *data, char *extra)
+			  union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *data = &wrqu->data;
 	struct cfg80211_registered_device *rdev;
 	int res;
 
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index ddf340bfa07a..8a24dfca75af 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -25,16 +25,17 @@ 
 
 int cfg80211_wext_giwname(struct net_device *dev,
 			  struct iw_request_info *info,
-			  char *name, char *extra)
+			  union iwreq_data *wrqu, char *extra)
 {
-	strcpy(name, "IEEE 802.11");
+	strcpy(wrqu->name, "IEEE 802.11");
 	return 0;
 }
 EXPORT_WEXT_HANDLER(cfg80211_wext_giwname);
 
 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
-			  u32 *mode, char *extra)
+			  union iwreq_data *wrqu, char *extra)
 {
+	__u32 *mode = &wrqu->mode;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev;
 	struct vif_params vifparams;
@@ -71,8 +72,9 @@  int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
 EXPORT_WEXT_HANDLER(cfg80211_wext_siwmode);
 
 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
-			  u32 *mode, char *extra)
+			  union iwreq_data *wrqu, char *extra)
 {
+	__u32 *mode = &wrqu->mode;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 
 	if (!wdev)
@@ -108,8 +110,9 @@  EXPORT_WEXT_HANDLER(cfg80211_wext_giwmode);
 
 int cfg80211_wext_giwrange(struct net_device *dev,
 			   struct iw_request_info *info,
-			   struct iw_point *data, char *extra)
+			   union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *data = &wrqu->data;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct iw_range *range = (struct iw_range *) extra;
 	enum nl80211_band band;
@@ -251,8 +254,9 @@  int cfg80211_wext_freq(struct iw_freq *freq)
 
 int cfg80211_wext_siwrts(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct iw_param *rts, char *extra)
+			 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *rts = &wrqu->rts;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 	u32 orts = wdev->wiphy->rts_threshold;
@@ -281,8 +285,9 @@  EXPORT_WEXT_HANDLER(cfg80211_wext_siwrts);
 
 int cfg80211_wext_giwrts(struct net_device *dev,
 			 struct iw_request_info *info,
-			 struct iw_param *rts, char *extra)
+			 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *rts = &wrqu->rts;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 
 	rts->value = wdev->wiphy->rts_threshold;
@@ -295,8 +300,9 @@  EXPORT_WEXT_HANDLER(cfg80211_wext_giwrts);
 
 int cfg80211_wext_siwfrag(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_param *frag, char *extra)
+			  union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *frag = &wrqu->frag;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 	u32 ofrag = wdev->wiphy->frag_threshold;
@@ -325,8 +331,9 @@  EXPORT_WEXT_HANDLER(cfg80211_wext_siwfrag);
 
 int cfg80211_wext_giwfrag(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_param *frag, char *extra)
+			  union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *frag = &wrqu->frag;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 
 	frag->value = wdev->wiphy->frag_threshold;
@@ -339,8 +346,9 @@  EXPORT_WEXT_HANDLER(cfg80211_wext_giwfrag);
 
 static int cfg80211_wext_siwretry(struct net_device *dev,
 				  struct iw_request_info *info,
-				  struct iw_param *retry, char *extra)
+				  union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *retry = &wrqu->retry;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 	u32 changed = 0;
@@ -378,8 +386,9 @@  static int cfg80211_wext_siwretry(struct net_device *dev,
 
 int cfg80211_wext_giwretry(struct net_device *dev,
 			   struct iw_request_info *info,
-			   struct iw_param *retry, char *extra)
+			   union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *retry = &wrqu->retry;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 
 	retry->disabled = 0;
@@ -588,8 +597,9 @@  static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 
 static int cfg80211_wext_siwencode(struct net_device *dev,
 				   struct iw_request_info *info,
-				   struct iw_point *erq, char *keybuf)
+				   union iwreq_data *wrqu, char *keybuf)
 {
+	struct iw_point *erq = &wrqu->encoding;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 	int idx, err;
@@ -664,8 +674,9 @@  static int cfg80211_wext_siwencode(struct net_device *dev,
 
 static int cfg80211_wext_siwencodeext(struct net_device *dev,
 				      struct iw_request_info *info,
-				      struct iw_point *erq, char *extra)
+				      union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *erq = &wrqu->encoding;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 	struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
@@ -767,8 +778,9 @@  static int cfg80211_wext_siwencodeext(struct net_device *dev,
 
 static int cfg80211_wext_giwencode(struct net_device *dev,
 				   struct iw_request_info *info,
-				   struct iw_point *erq, char *keybuf)
+				   union iwreq_data *wrqu, char *keybuf)
 {
+	struct iw_point *erq = &wrqu->encoding;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	int idx;
 
@@ -804,8 +816,9 @@  static int cfg80211_wext_giwencode(struct net_device *dev,
 
 static int cfg80211_wext_siwfreq(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_freq *wextfreq, char *extra)
+				 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_freq *wextfreq = &wrqu->freq;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 	struct cfg80211_chan_def chandef = {
@@ -870,8 +883,9 @@  static int cfg80211_wext_siwfreq(struct net_device *dev,
 
 static int cfg80211_wext_giwfreq(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_freq *freq, char *extra)
+				 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_freq *freq = &wrqu->freq;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 	struct cfg80211_chan_def chandef = {};
@@ -1147,8 +1161,9 @@  static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
 
 static int cfg80211_wext_siwauth(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_param *data, char *extra)
+				 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *data = &wrqu->param;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 
 	if (wdev->iftype != NL80211_IFTYPE_STATION)
@@ -1180,7 +1195,7 @@  static int cfg80211_wext_siwauth(struct net_device *dev,
 
 static int cfg80211_wext_giwauth(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_param *data, char *extra)
+				 union iwreq_data *wrqu, char *extra)
 {
 	/* XXX: what do we need? */
 
@@ -1189,8 +1204,9 @@  static int cfg80211_wext_giwauth(struct net_device *dev,
 
 static int cfg80211_wext_siwpower(struct net_device *dev,
 				  struct iw_request_info *info,
-				  struct iw_param *wrq, char *extra)
+				  union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *wrq = &wrqu->power;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 	bool ps;
@@ -1238,8 +1254,9 @@  static int cfg80211_wext_siwpower(struct net_device *dev,
 
 static int cfg80211_wext_giwpower(struct net_device *dev,
 				  struct iw_request_info *info,
-				  struct iw_param *wrq, char *extra)
+				  union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *wrq = &wrqu->power;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 
 	wrq->disabled = !wdev->ps;
@@ -1249,8 +1266,9 @@  static int cfg80211_wext_giwpower(struct net_device *dev,
 
 static int cfg80211_wext_siwrate(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_param *rate, char *extra)
+				 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *rate = &wrqu->bitrate;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 	struct cfg80211_bitrate_mask mask;
@@ -1307,8 +1325,9 @@  static int cfg80211_wext_siwrate(struct net_device *dev,
 
 static int cfg80211_wext_giwrate(struct net_device *dev,
 				 struct iw_request_info *info,
-				 struct iw_param *rate, char *extra)
+				 union iwreq_data *wrqu, char *extra)
 {
+	struct iw_param *rate = &wrqu->bitrate;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 	struct station_info sinfo = {};
@@ -1430,8 +1449,9 @@  static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
 
 static int cfg80211_wext_siwap(struct net_device *dev,
 			       struct iw_request_info *info,
-			       struct sockaddr *ap_addr, char *extra)
+			       union iwreq_data *wrqu, char *extra)
 {
+	struct sockaddr *ap_addr = &wrqu->ap_addr;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 	int ret;
@@ -1455,8 +1475,9 @@  static int cfg80211_wext_siwap(struct net_device *dev,
 
 static int cfg80211_wext_giwap(struct net_device *dev,
 			       struct iw_request_info *info,
-			       struct sockaddr *ap_addr, char *extra)
+			       union iwreq_data *wrqu, char *extra)
 {
+	struct sockaddr *ap_addr = &wrqu->ap_addr;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 	int ret;
@@ -1480,8 +1501,9 @@  static int cfg80211_wext_giwap(struct net_device *dev,
 
 static int cfg80211_wext_siwessid(struct net_device *dev,
 				  struct iw_request_info *info,
-				  struct iw_point *data, char *ssid)
+				  union iwreq_data *wrqu, char *ssid)
 {
+	struct iw_point *data = &wrqu->data;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 	int ret;
@@ -1505,8 +1527,9 @@  static int cfg80211_wext_siwessid(struct net_device *dev,
 
 static int cfg80211_wext_giwessid(struct net_device *dev,
 				  struct iw_request_info *info,
-				  struct iw_point *data, char *ssid)
+				  union iwreq_data *wrqu, char *ssid)
 {
+	struct iw_point *data = &wrqu->data;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 	int ret;
@@ -1533,7 +1556,7 @@  static int cfg80211_wext_giwessid(struct net_device *dev,
 
 static int cfg80211_wext_siwpmksa(struct net_device *dev,
 				  struct iw_request_info *info,
-				  struct iw_point *data, char *extra)
+				  union iwreq_data *wrqu, char *extra)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
@@ -1584,78 +1607,39 @@  static int cfg80211_wext_siwpmksa(struct net_device *dev,
 	return ret;
 }
 
-#define DEFINE_WEXT_COMPAT_STUB(func, type)			\
-	static int __ ## func(struct net_device *dev,		\
-			      struct iw_request_info *info,	\
-			      union iwreq_data *wrqu,		\
-			      char *extra)			\
-	{							\
-		return func(dev, info, (type *)wrqu, extra);	\
-	}
-
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwname, char)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwfreq, struct iw_freq)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwfreq, struct iw_freq)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwmode, u32)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwmode, u32)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwrange, struct iw_point)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwap, struct sockaddr)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwap, struct sockaddr)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwmlme, struct iw_point)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwscan, struct iw_point)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwessid, struct iw_point)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwessid, struct iw_point)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwrate, struct iw_param)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwrate, struct iw_param)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwrts, struct iw_param)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwrts, struct iw_param)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwfrag, struct iw_param)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwfrag, struct iw_param)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwretry, struct iw_param)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwretry, struct iw_param)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwencode, struct iw_point)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwencode, struct iw_point)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwpower, struct iw_param)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwpower, struct iw_param)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwgenie, struct iw_point)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwauth, struct iw_param)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwauth, struct iw_param)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwencodeext, struct iw_point)
-DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwpmksa, struct iw_point)
-
 static const iw_handler cfg80211_handlers[] = {
-	[IW_IOCTL_IDX(SIOCGIWNAME)]	= __cfg80211_wext_giwname,
-	[IW_IOCTL_IDX(SIOCSIWFREQ)]	= __cfg80211_wext_siwfreq,
-	[IW_IOCTL_IDX(SIOCGIWFREQ)]	= __cfg80211_wext_giwfreq,
-	[IW_IOCTL_IDX(SIOCSIWMODE)]	= __cfg80211_wext_siwmode,
-	[IW_IOCTL_IDX(SIOCGIWMODE)]	= __cfg80211_wext_giwmode,
-	[IW_IOCTL_IDX(SIOCGIWRANGE)]	= __cfg80211_wext_giwrange,
-	[IW_IOCTL_IDX(SIOCSIWAP)]	= __cfg80211_wext_siwap,
-	[IW_IOCTL_IDX(SIOCGIWAP)]	= __cfg80211_wext_giwap,
-	[IW_IOCTL_IDX(SIOCSIWMLME)]	= __cfg80211_wext_siwmlme,
-	[IW_IOCTL_IDX(SIOCSIWSCAN)]	= cfg80211_wext_siwscan,
-	[IW_IOCTL_IDX(SIOCGIWSCAN)]	= __cfg80211_wext_giwscan,
-	[IW_IOCTL_IDX(SIOCSIWESSID)]	= __cfg80211_wext_siwessid,
-	[IW_IOCTL_IDX(SIOCGIWESSID)]	= __cfg80211_wext_giwessid,
-	[IW_IOCTL_IDX(SIOCSIWRATE)]	= __cfg80211_wext_siwrate,
-	[IW_IOCTL_IDX(SIOCGIWRATE)]	= __cfg80211_wext_giwrate,
-	[IW_IOCTL_IDX(SIOCSIWRTS)]	= __cfg80211_wext_siwrts,
-	[IW_IOCTL_IDX(SIOCGIWRTS)]	= __cfg80211_wext_giwrts,
-	[IW_IOCTL_IDX(SIOCSIWFRAG)]	= __cfg80211_wext_siwfrag,
-	[IW_IOCTL_IDX(SIOCGIWFRAG)]	= __cfg80211_wext_giwfrag,
-	[IW_IOCTL_IDX(SIOCSIWTXPOW)]	= cfg80211_wext_siwtxpower,
-	[IW_IOCTL_IDX(SIOCGIWTXPOW)]	= cfg80211_wext_giwtxpower,
-	[IW_IOCTL_IDX(SIOCSIWRETRY)]	= __cfg80211_wext_siwretry,
-	[IW_IOCTL_IDX(SIOCGIWRETRY)]	= __cfg80211_wext_giwretry,
-	[IW_IOCTL_IDX(SIOCSIWENCODE)]	= __cfg80211_wext_siwencode,
-	[IW_IOCTL_IDX(SIOCGIWENCODE)]	= __cfg80211_wext_giwencode,
-	[IW_IOCTL_IDX(SIOCSIWPOWER)]	= __cfg80211_wext_siwpower,
-	[IW_IOCTL_IDX(SIOCGIWPOWER)]	= __cfg80211_wext_giwpower,
-	[IW_IOCTL_IDX(SIOCSIWGENIE)]	= __cfg80211_wext_siwgenie,
-	[IW_IOCTL_IDX(SIOCSIWAUTH)]	= __cfg80211_wext_siwauth,
-	[IW_IOCTL_IDX(SIOCGIWAUTH)]	= __cfg80211_wext_giwauth,
-	[IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= __cfg80211_wext_siwencodeext,
-	[IW_IOCTL_IDX(SIOCSIWPMKSA)]	= __cfg80211_wext_siwpmksa,
+	IW_HANDLER(SIOCGIWNAME,		cfg80211_wext_giwname),
+	IW_HANDLER(SIOCSIWFREQ,		cfg80211_wext_siwfreq),
+	IW_HANDLER(SIOCGIWFREQ,		cfg80211_wext_giwfreq),
+	IW_HANDLER(SIOCSIWMODE,		cfg80211_wext_siwmode),
+	IW_HANDLER(SIOCGIWMODE,		cfg80211_wext_giwmode),
+	IW_HANDLER(SIOCGIWRANGE,	cfg80211_wext_giwrange),
+	IW_HANDLER(SIOCSIWAP,		cfg80211_wext_siwap),
+	IW_HANDLER(SIOCGIWAP,		cfg80211_wext_giwap),
+	IW_HANDLER(SIOCSIWMLME,		cfg80211_wext_siwmlme),
+	IW_HANDLER(SIOCSIWSCAN,		cfg80211_wext_siwscan),
+	IW_HANDLER(SIOCGIWSCAN,		cfg80211_wext_giwscan),
+	IW_HANDLER(SIOCSIWESSID,	cfg80211_wext_siwessid),
+	IW_HANDLER(SIOCGIWESSID,	cfg80211_wext_giwessid),
+	IW_HANDLER(SIOCSIWRATE,		cfg80211_wext_siwrate),
+	IW_HANDLER(SIOCGIWRATE,		cfg80211_wext_giwrate),
+	IW_HANDLER(SIOCSIWRTS,		cfg80211_wext_siwrts),
+	IW_HANDLER(SIOCGIWRTS,		cfg80211_wext_giwrts),
+	IW_HANDLER(SIOCSIWFRAG,		cfg80211_wext_siwfrag),
+	IW_HANDLER(SIOCGIWFRAG,		cfg80211_wext_giwfrag),
+	IW_HANDLER(SIOCSIWTXPOW,	cfg80211_wext_siwtxpower),
+	IW_HANDLER(SIOCGIWTXPOW,	cfg80211_wext_giwtxpower),
+	IW_HANDLER(SIOCSIWRETRY,	cfg80211_wext_siwretry),
+	IW_HANDLER(SIOCGIWRETRY,	cfg80211_wext_giwretry),
+	IW_HANDLER(SIOCSIWENCODE,	cfg80211_wext_siwencode),
+	IW_HANDLER(SIOCGIWENCODE,	cfg80211_wext_giwencode),
+	IW_HANDLER(SIOCSIWPOWER,	cfg80211_wext_siwpower),
+	IW_HANDLER(SIOCGIWPOWER,	cfg80211_wext_giwpower),
+	IW_HANDLER(SIOCSIWGENIE,	cfg80211_wext_siwgenie),
+	IW_HANDLER(SIOCSIWAUTH,		cfg80211_wext_siwauth),
+	IW_HANDLER(SIOCGIWAUTH,		cfg80211_wext_giwauth),
+	IW_HANDLER(SIOCSIWENCODEEXT,	cfg80211_wext_siwencodeext),
+	IW_HANDLER(SIOCSIWPMKSA,	cfg80211_wext_siwpmksa),
 };
 
 const struct iw_handler_def cfg80211_wext_handler = {
diff --git a/net/wireless/wext-compat.h b/net/wireless/wext-compat.h
index 8d3cc1552e2f..c02eb789e676 100644
--- a/net/wireless/wext-compat.h
+++ b/net/wireless/wext-compat.h
@@ -13,7 +13,7 @@ 
 
 int cfg80211_ibss_wext_siwfreq(struct net_device *dev,
 			       struct iw_request_info *info,
-			       struct iw_freq *freq, char *extra);
+			       struct iw_freq *wextfreq, char *extra);
 int cfg80211_ibss_wext_giwfreq(struct net_device *dev,
 			       struct iw_request_info *info,
 			       struct iw_freq *freq, char *extra);
@@ -32,7 +32,7 @@  int cfg80211_ibss_wext_giwessid(struct net_device *dev,
 
 int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
 			      struct iw_request_info *info,
-			      struct iw_freq *freq, char *extra);
+			      struct iw_freq *wextfreq, char *extra);
 int cfg80211_mgd_wext_giwfreq(struct net_device *dev,
 			      struct iw_request_info *info,
 			      struct iw_freq *freq, char *extra);
@@ -51,10 +51,10 @@  int cfg80211_mgd_wext_giwessid(struct net_device *dev,
 
 int cfg80211_wext_siwmlme(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_point *data, char *extra);
+			  union iwreq_data *wrqu, char *extra);
 int cfg80211_wext_siwgenie(struct net_device *dev,
 			   struct iw_request_info *info,
-			   struct iw_point *data, char *extra);
+			   union iwreq_data *wrqu, char *extra);
 
 
 int cfg80211_wext_freq(struct iw_freq *freq);
diff --git a/net/wireless/wext-sme.c b/net/wireless/wext-sme.c
index 68f45afc352d..191c6d98c700 100644
--- a/net/wireless/wext-sme.c
+++ b/net/wireless/wext-sme.c
@@ -324,8 +324,9 @@  int cfg80211_mgd_wext_giwap(struct net_device *dev,
 
 int cfg80211_wext_siwgenie(struct net_device *dev,
 			   struct iw_request_info *info,
-			   struct iw_point *data, char *extra)
+			   union iwreq_data *wrqu, char *extra)
 {
+	struct iw_point *data = &wrqu->data;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 	u8 *ie = extra;
@@ -374,7 +375,7 @@  int cfg80211_wext_siwgenie(struct net_device *dev,
 
 int cfg80211_wext_siwmlme(struct net_device *dev,
 			  struct iw_request_info *info,
-			  struct iw_point *data, char *extra)
+			  union iwreq_data *wrqu, char *extra)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct iw_mlme *mlme = (struct iw_mlme *)extra;