[PATCH 2/6][next] cfg80211: Avoid clashing function prototypes

From: Gustavo A. R. Silva
Date: Mon Oct 17 2022 - 16:37:51 EST

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 10 warnings like these:

../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),
^~~~~~~~~~~~~~~~~~~~~~
../include/uapi/linux/wireless.h:357:23: note: expanded from macro 'IW_HANDLER'
[IW_IOCTL_IDX(id)] = func

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. No significant binary differences were seen
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@xxxxxxxxxx>
---
drivers/net/wireless/intersil/orinoco/wext.c | 22 +--
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 +-
6 files changed, 112 insertions(+), 126 deletions(-)

diff --git a/drivers/net/wireless/intersil/orinoco/wext.c b/drivers/net/wireless/intersil/orinoco/wext.c
index b8eb5d60192f..dea1ff044342 100644
--- a/drivers/net/wireless/intersil/orinoco/wext.c
+++ b/drivers/net/wireless/intersil/orinoco/wext.c
@@ -1363,31 +1363,31 @@ static const struct iw_priv_args orinoco_privtab[] = {

static const iw_handler orinoco_handler[] = {
IW_HANDLER(SIOCSIWCOMMIT, orinoco_ioctl_commit),
- IW_HANDLER(SIOCGIWNAME, (iw_handler)cfg80211_wext_giwname),
+ IW_HANDLER(SIOCGIWNAME, cfg80211_wext_giwname),
IW_HANDLER(SIOCSIWFREQ, orinoco_ioctl_setfreq),
IW_HANDLER(SIOCGIWFREQ, orinoco_ioctl_getfreq),
- IW_HANDLER(SIOCSIWMODE, (iw_handler)cfg80211_wext_siwmode),
- IW_HANDLER(SIOCGIWMODE, (iw_handler)cfg80211_wext_giwmode),
+ 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, (iw_handler)cfg80211_wext_giwrange),
+ 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, orinoco_ioctl_setwap),
IW_HANDLER(SIOCGIWAP, orinoco_ioctl_getwap),
- IW_HANDLER(SIOCSIWSCAN, (iw_handler)cfg80211_wext_siwscan),
- IW_HANDLER(SIOCGIWSCAN, (iw_handler)cfg80211_wext_giwscan),
+ 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, (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(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),
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..b5274859ccfd 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_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,
};

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;
--
2.34.1