[PATCH 1/2] wireless: Make struct ieee80211_channel const where possible

From: Joe Perches
Date: Fri Apr 29 2011 - 01:25:31 EST

Useful for declarations of static const.

Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
---
include/net/cfg80211.h | 34 +++++++++++++++++-----------------
net/wireless/chan.c | 10 +++++-----
net/wireless/core.h | 14 ++++++++------
net/wireless/debugfs.c | 2 +-
net/wireless/ibss.c | 6 +++---
net/wireless/mlme.c | 15 ++++++++-------
net/wireless/nl80211.c | 31 ++++++++++++++++---------------
net/wireless/nl80211.h | 9 +++++----
net/wireless/reg.c | 11 ++++++-----
net/wireless/reg.h | 4 ++--
net/wireless/scan.c | 6 +++---
net/wireless/wext-sme.c | 2 +-
12 files changed, 75 insertions(+), 69 deletions(-)

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index d30eada..0a14bd9 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -789,7 +789,7 @@ struct cfg80211_scan_request {
bool aborted;

/* keep last */
- struct ieee80211_channel *channels[0];
+ const struct ieee80211_channel *channels[0];
};

/**
@@ -830,7 +830,7 @@ enum cfg80211_signal_type {
* @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
*/
struct cfg80211_bss {
- struct ieee80211_channel *channel;
+ const struct ieee80211_channel *channel;

u8 bssid[ETH_ALEN];
u64 tsf;
@@ -1002,7 +1002,7 @@ struct cfg80211_disassoc_request {
struct cfg80211_ibss_params {
u8 *ssid;
u8 *bssid;
- struct ieee80211_channel *channel;
+ const struct ieee80211_channel *channel;
u8 *ie;
u8 ssid_len, ie_len;
u16 beacon_interval;
@@ -1034,7 +1034,7 @@ struct cfg80211_ibss_params {
* @key: WEP key for shared key authentication
*/
struct cfg80211_connect_params {
- struct ieee80211_channel *channel;
+ const struct ieee80211_channel *channel;
u8 *bssid;
u8 *ssid;
size_t ssid_len;
@@ -1322,7 +1322,7 @@ struct cfg80211_ops {
struct ieee80211_txq_params *params);

int (*set_channel)(struct wiphy *wiphy, struct net_device *dev,
- struct ieee80211_channel *chan,
+ const struct ieee80211_channel *chan,
enum nl80211_channel_type channel_type);

int (*scan)(struct wiphy *wiphy, struct net_device *dev,
@@ -1379,7 +1379,7 @@ struct cfg80211_ops {

int (*remain_on_channel)(struct wiphy *wiphy,
struct net_device *dev,
- struct ieee80211_channel *chan,
+ const struct ieee80211_channel *chan,
enum nl80211_channel_type channel_type,
unsigned int duration,
u64 *cookie);
@@ -1388,10 +1388,10 @@ struct cfg80211_ops {
u64 cookie);

int (*mgmt_tx)(struct wiphy *wiphy, struct net_device *dev,
- struct ieee80211_channel *chan, bool offchan,
- enum nl80211_channel_type channel_type,
- bool channel_type_valid, unsigned int wait,
- const u8 *buf, size_t len, u64 *cookie);
+ const struct ieee80211_channel *chan, bool offchan,
+ enum nl80211_channel_type channel_type,
+ bool channel_type_valid, unsigned int wait,
+ const u8 *buf, size_t len, u64 *cookie);
int (*mgmt_tx_cancel_wait)(struct wiphy *wiphy,
struct net_device *dev,
u64 cookie);
@@ -1804,7 +1804,7 @@ struct wireless_dev {
struct cfg80211_internal_bss *authtry_bsses[MAX_AUTH_BSSES];
struct cfg80211_internal_bss *auth_bsses[MAX_AUTH_BSSES];
struct cfg80211_internal_bss *current_bss; /* associated / joined */
- struct ieee80211_channel *channel;
+ const struct ieee80211_channel *channel;

bool ps;
int ps_timeout;
@@ -2294,20 +2294,20 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy,
*/
struct cfg80211_bss*
cfg80211_inform_bss(struct wiphy *wiphy,
- struct ieee80211_channel *channel,
+ const struct ieee80211_channel *channel,
const u8 *bssid,
u64 timestamp, u16 capability, u16 beacon_interval,
const u8 *ie, size_t ielen,
s32 signal, gfp_t gfp);

struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
- struct ieee80211_channel *channel,
+ const struct ieee80211_channel *channel,
const u8 *bssid,
const u8 *ssid, size_t ssid_len,
u16 capa_mask, u16 capa_val);
static inline struct cfg80211_bss *
cfg80211_get_ibss(struct wiphy *wiphy,
- struct ieee80211_channel *channel,
+ const struct ieee80211_channel *channel,
const u8 *ssid, size_t ssid_len)
{
return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
@@ -2315,7 +2315,7 @@ cfg80211_get_ibss(struct wiphy *wiphy,
}

struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
- struct ieee80211_channel *channel,
+ const struct ieee80211_channel *channel,
const u8 *meshid, size_t meshidlen,
const u8 *meshcfg);
void cfg80211_put_bss(struct cfg80211_bss *bss);
@@ -2695,7 +2695,7 @@ void cfg80211_disconnected(struct net_device *dev, u16 reason,
* @gfp: allocation flags
*/
void cfg80211_ready_on_channel(struct net_device *dev, u64 cookie,
- struct ieee80211_channel *chan,
+ const struct ieee80211_channel *chan,
enum nl80211_channel_type channel_type,
unsigned int duration, gfp_t gfp);

@@ -2709,7 +2709,7 @@ void cfg80211_ready_on_channel(struct net_device *dev, u64 cookie,
*/
void cfg80211_remain_on_channel_expired(struct net_device *dev,
u64 cookie,
- struct ieee80211_channel *chan,
+ const struct ieee80211_channel *chan,
enum nl80211_channel_type channel_type,
gfp_t gfp);

diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index 17cd0c0..d2fcf62 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -9,11 +9,11 @@
#include <net/cfg80211.h>
#include "core.h"

-struct ieee80211_channel *
+const struct ieee80211_channel *
rdev_freq_to_chan(struct cfg80211_registered_device *rdev,
int freq, enum nl80211_channel_type channel_type)
{
- struct ieee80211_channel *chan;
+ const struct ieee80211_channel *chan;
struct ieee80211_sta_ht_cap *ht_cap;

chan = ieee80211_get_channel(&rdev->wiphy, freq);
@@ -45,10 +45,10 @@ rdev_freq_to_chan(struct cfg80211_registered_device *rdev,
}

static bool can_beacon_sec_chan(struct wiphy *wiphy,
- struct ieee80211_channel *chan,
+ const struct ieee80211_channel *chan,
enum nl80211_channel_type channel_type)
{
- struct ieee80211_channel *sec_chan;
+ const struct ieee80211_channel *sec_chan;
int diff;

switch (channel_type) {
@@ -80,7 +80,7 @@ int cfg80211_set_freq(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev, int freq,
enum nl80211_channel_type channel_type)
{
- struct ieee80211_channel *chan;
+ const struct ieee80211_channel *chan;
int result;

if (wdev && wdev->iftype == NL80211_IFTYPE_MONITOR)
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 26a0a08..48c79d2 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -302,7 +302,7 @@ int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
/* MLME */
int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
struct net_device *dev,
- struct ieee80211_channel *chan,
+ const struct ieee80211_channel *chan,
enum nl80211_auth_type auth_type,
const u8 *bssid,
const u8 *ssid, int ssid_len,
@@ -310,7 +310,8 @@ int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
const u8 *key, int key_len, int key_idx,
bool local_state_change);
int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
- struct net_device *dev, struct ieee80211_channel *chan,
+ struct net_device *dev,
+ const struct ieee80211_channel *chan,
enum nl80211_auth_type auth_type, const u8 *bssid,
const u8 *ssid, int ssid_len,
const u8 *ie, int ie_len,
@@ -318,13 +319,14 @@ int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
bool local_state_change);
int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
struct net_device *dev,
- struct ieee80211_channel *chan,
+ const struct ieee80211_channel *chan,
const u8 *bssid, const u8 *prev_bssid,
const u8 *ssid, int ssid_len,
const u8 *ie, int ie_len, bool use_mfp,
struct cfg80211_crypto_settings *crypt);
int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
- struct net_device *dev, struct ieee80211_channel *chan,
+ struct net_device *dev,
+ const struct ieee80211_channel *chan,
const u8 *bssid, const u8 *prev_bssid,
const u8 *ssid, int ssid_len,
const u8 *ie, int ie_len, bool use_mfp,
@@ -355,7 +357,7 @@ void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid);
void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev);
int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
struct net_device *dev,
- struct ieee80211_channel *chan, bool offchan,
+ const struct ieee80211_channel *chan, bool offchan,
enum nl80211_channel_type channel_type,
bool channel_type_valid, unsigned int wait,
const u8 *buf, size_t len, u64 *cookie);
@@ -403,7 +405,7 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
u32 *flags, struct vif_params *params);
void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev);

-struct ieee80211_channel *
+const struct ieee80211_channel *
rdev_freq_to_chan(struct cfg80211_registered_device *rdev,
int freq, enum nl80211_channel_type channel_type);
int cfg80211_set_freq(struct cfg80211_registered_device *rdev,
diff --git a/net/wireless/debugfs.c b/net/wireless/debugfs.c
index 39765bc..9bb06a2 100644
--- a/net/wireless/debugfs.c
+++ b/net/wireless/debugfs.c
@@ -46,7 +46,7 @@ DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d",
DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d",
wiphy->retry_long);

-static int ht_print_chan(struct ieee80211_channel *chan,
+static int ht_print_chan(const struct ieee80211_channel *chan,
char *buf, int buf_size, int offset)
{
if (WARN_ON(offset > buf_size))
diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c
index f33fbb7..92a16a7 100644
--- a/net/wireless/ibss.c
+++ b/net/wireless/ibss.c
@@ -235,7 +235,7 @@ int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
if (!wdev->wext.ibss.channel) {
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
struct ieee80211_supported_band *sband;
- struct ieee80211_channel *chan;
+ const struct ieee80211_channel *chan;

sband = rdev->wiphy.bands[band];
if (!sband)
@@ -294,7 +294,7 @@ int cfg80211_ibss_wext_siwfreq(struct net_device *dev,
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
- struct ieee80211_channel *chan = NULL;
+ const struct ieee80211_channel *chan = NULL;
int err, freq;

/* call only for ibss! */
@@ -351,7 +351,7 @@ int cfg80211_ibss_wext_giwfreq(struct net_device *dev,
struct iw_freq *freq, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
- struct ieee80211_channel *chan = NULL;
+ const struct ieee80211_channel *chan = NULL;

/* call only for ibss! */
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC))
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 16881fe..b5fefd0 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -396,7 +396,7 @@ EXPORT_SYMBOL(cfg80211_michael_mic_failure);
/* some MLME handling for userspace SME */
int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
struct net_device *dev,
- struct ieee80211_channel *chan,
+ const struct ieee80211_channel *chan,
enum nl80211_auth_type auth_type,
const u8 *bssid,
const u8 *ssid, int ssid_len,
@@ -481,7 +481,8 @@ int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
}

int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
- struct net_device *dev, struct ieee80211_channel *chan,
+ struct net_device *dev,
+ const struct ieee80211_channel *chan,
enum nl80211_auth_type auth_type, const u8 *bssid,
const u8 *ssid, int ssid_len,
const u8 *ie, int ie_len,
@@ -501,7 +502,7 @@ int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,

int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
struct net_device *dev,
- struct ieee80211_channel *chan,
+ const struct ieee80211_channel *chan,
const u8 *bssid, const u8 *prev_bssid,
const u8 *ssid, int ssid_len,
const u8 *ie, int ie_len, bool use_mfp,
@@ -568,7 +569,7 @@ int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,

int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
struct net_device *dev,
- struct ieee80211_channel *chan,
+ const struct ieee80211_channel *chan,
const u8 *bssid, const u8 *prev_bssid,
const u8 *ssid, int ssid_len,
const u8 *ie, int ie_len, bool use_mfp,
@@ -734,7 +735,7 @@ void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
}

void cfg80211_ready_on_channel(struct net_device *dev, u64 cookie,
- struct ieee80211_channel *chan,
+ const struct ieee80211_channel *chan,
enum nl80211_channel_type channel_type,
unsigned int duration, gfp_t gfp)
{
@@ -748,7 +749,7 @@ EXPORT_SYMBOL(cfg80211_ready_on_channel);

void cfg80211_remain_on_channel_expired(struct net_device *dev,
u64 cookie,
- struct ieee80211_channel *chan,
+ const struct ieee80211_channel *chan,
enum nl80211_channel_type channel_type,
gfp_t gfp)
{
@@ -895,7 +896,7 @@ void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev)

int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
struct net_device *dev,
- struct ieee80211_channel *chan, bool offchan,
+ const struct ieee80211_channel *chan, bool offchan,
enum nl80211_channel_type channel_type,
bool channel_type_valid, unsigned int wait,
const u8 *buf, size_t len, u64 *cookie)
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 0efa7fd..fcb1c91 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -294,7 +294,7 @@ static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
}

static int nl80211_msg_put_channel(struct sk_buff *msg,
- struct ieee80211_channel *chan)
+ const struct ieee80211_channel *chan)
{
NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
chan->center_freq);
@@ -561,7 +561,7 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
struct nlattr *nl_modes;
struct nlattr *nl_cmds;
enum ieee80211_band band;
- struct ieee80211_channel *chan;
+ const struct ieee80211_channel *chan;
struct ieee80211_rate *rate;
int i;
u16 ifmodes = dev->wiphy.interface_modes;
@@ -3170,7 +3170,7 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
struct net_device *dev = info->user_ptr[1];
struct cfg80211_scan_request *request;
struct cfg80211_ssid *ssid;
- struct ieee80211_channel *channel;
+ const struct ieee80211_channel *channel;
struct nlattr *attr;
struct wiphy *wiphy;
int err, tmp, n_ssids = 0, n_channels, i;
@@ -3237,7 +3237,7 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
/* user specified, bail out if channel not found */
nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
- struct ieee80211_channel *chan;
+ const struct ieee80211_channel *chan;

chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));

@@ -3260,7 +3260,7 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
if (!wiphy->bands[band])
continue;
for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
- struct ieee80211_channel *chan;
+ const struct ieee80211_channel *chan;

chan = &wiphy->bands[band]->channels[j];

@@ -3572,7 +3572,7 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct net_device *dev = info->user_ptr[1];
- struct ieee80211_channel *chan;
+ const struct ieee80211_channel *chan;
const u8 *bssid, *ssid, *ie = NULL;
int err, ssid_len, ie_len = 0;
enum nl80211_auth_type auth_type;
@@ -3745,7 +3745,7 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct net_device *dev = info->user_ptr[1];
struct cfg80211_crypto_settings crypto;
- struct ieee80211_channel *chan;
+ const struct ieee80211_channel *chan;
const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
int err, ssid_len, ie_len = 0;
bool use_mfp = false;
@@ -4322,7 +4322,7 @@ static int nl80211_remain_on_channel(struct sk_buff *skb,
{
struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct net_device *dev = info->user_ptr[1];
- struct ieee80211_channel *chan;
+ const struct ieee80211_channel *chan;
struct sk_buff *msg;
void *hdr;
u64 cookie;
@@ -4527,7 +4527,7 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct net_device *dev = info->user_ptr[1];
- struct ieee80211_channel *chan;
+ const struct ieee80211_channel *chan;
enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
bool channel_type_valid = false;
u32 freq;
@@ -5900,9 +5900,10 @@ void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
nlmsg_free(msg);
}

-void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
- struct ieee80211_channel *channel_before,
- struct ieee80211_channel *channel_after)
+void
+nl80211_send_beacon_hint_event(struct wiphy *wiphy,
+ const struct ieee80211_channel *channel_before,
+ const struct ieee80211_channel *channel_after)
{
struct sk_buff *msg;
void *hdr;
@@ -5960,7 +5961,7 @@ nla_put_failure:
static void nl80211_send_remain_on_chan_event(
int cmd, struct cfg80211_registered_device *rdev,
struct net_device *netdev, u64 cookie,
- struct ieee80211_channel *chan,
+ const struct ieee80211_channel *chan,
enum nl80211_channel_type channel_type,
unsigned int duration, gfp_t gfp)
{
@@ -6002,7 +6003,7 @@ static void nl80211_send_remain_on_chan_event(

void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
struct net_device *netdev, u64 cookie,
- struct ieee80211_channel *chan,
+ const struct ieee80211_channel *chan,
enum nl80211_channel_type channel_type,
unsigned int duration, gfp_t gfp)
{
@@ -6013,7 +6014,7 @@ void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,

void nl80211_send_remain_on_channel_cancel(
struct cfg80211_registered_device *rdev, struct net_device *netdev,
- u64 cookie, struct ieee80211_channel *chan,
+ u64 cookie, const struct ieee80211_channel *chan,
enum nl80211_channel_type channel_type, gfp_t gfp)
{
nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h
index f2af695..3039286 100644
--- a/net/wireless/nl80211.h
+++ b/net/wireless/nl80211.h
@@ -62,8 +62,8 @@ nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,

void
nl80211_send_beacon_hint_event(struct wiphy *wiphy,
- struct ieee80211_channel *channel_before,
- struct ieee80211_channel *channel_after);
+ const struct ieee80211_channel *channel_before,
+ const struct ieee80211_channel *channel_after);

void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
struct net_device *netdev, const u8 *bssid,
@@ -72,12 +72,13 @@ void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
struct net_device *netdev,
u64 cookie,
- struct ieee80211_channel *chan,
+ const struct ieee80211_channel *chan,
enum nl80211_channel_type channel_type,
unsigned int duration, gfp_t gfp);
void nl80211_send_remain_on_channel_cancel(
struct cfg80211_registered_device *rdev, struct net_device *netdev,
- u64 cookie, struct ieee80211_channel *chan,
+ u64 cookie,
+ const struct ieee80211_channel *chan,
enum nl80211_channel_type channel_type, gfp_t gfp);

void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 1613080..2768846 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -734,7 +734,7 @@ static const char *reg_initiator_name(enum nl80211_reg_initiator initiator)
}
}

-static void chan_reg_rule_print_dbg(struct ieee80211_channel *chan,
+static void chan_reg_rule_print_dbg(const struct ieee80211_channel *chan,
u32 desired_bw_khz,
const struct ieee80211_reg_rule *reg_rule)
{
@@ -762,7 +762,7 @@ static void chan_reg_rule_print_dbg(struct ieee80211_channel *chan,
power_rule->max_eirp);
}
#else
-static void chan_reg_rule_print_dbg(struct ieee80211_channel *chan,
+static void chan_reg_rule_print_dbg(const struct ieee80211_channel *chan,
u32 desired_bw_khz,
const struct ieee80211_reg_rule *reg_rule)
{
@@ -1034,7 +1034,7 @@ static void reg_process_beacons(struct wiphy *wiphy)
wiphy_update_beacon_reg(wiphy);
}

-static bool is_ht40_not_allowed(struct ieee80211_channel *chan)
+static bool is_ht40_not_allowed(const struct ieee80211_channel *chan)
{
if (!chan)
return true;
@@ -1052,7 +1052,8 @@ static void reg_process_ht_flags_channel(struct wiphy *wiphy,
{
struct ieee80211_supported_band *sband;
struct ieee80211_channel *channel;
- struct ieee80211_channel *channel_before = NULL, *channel_after = NULL;
+ struct ieee80211_channel *channel_before = NULL;
+ struct ieee80211_channel *channel_after = NULL;
unsigned int i;

assert_cfg80211_lock();
@@ -1865,7 +1866,7 @@ static bool freq_is_chan_12_13_14(u16 freq)
}

int regulatory_hint_found_beacon(struct wiphy *wiphy,
- struct ieee80211_channel *beacon_chan,
+ const struct ieee80211_channel *beacon_chan,
gfp_t gfp)
{
struct reg_beacon *reg_beacon;
diff --git a/net/wireless/reg.h b/net/wireless/reg.h
index b67d1c3..2a4cf5c 100644
--- a/net/wireless/reg.h
+++ b/net/wireless/reg.h
@@ -35,8 +35,8 @@ int set_regdom(const struct ieee80211_regdomain *rd);
* set the wiphy->disable_beacon_hints to true.
*/
int regulatory_hint_found_beacon(struct wiphy *wiphy,
- struct ieee80211_channel *beacon_chan,
- gfp_t gfp);
+ const struct ieee80211_channel *beacon_chan,
+ gfp_t gfp);

/**
* regulatory_hint_11d - hints a country IE as a regulatory domain
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index fbf6f33..756c8e7 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -275,7 +275,7 @@ static int cmp_bss(struct cfg80211_bss *a,
}

struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
- struct ieee80211_channel *channel,
+ const struct ieee80211_channel *channel,
const u8 *bssid,
const u8 *ssid, size_t ssid_len,
u16 capa_mask, u16 capa_val)
@@ -310,7 +310,7 @@ struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
EXPORT_SYMBOL(cfg80211_get_bss);

struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
- struct ieee80211_channel *channel,
+ const struct ieee80211_channel *channel,
const u8 *meshid, size_t meshidlen,
const u8 *meshcfg)
{
@@ -524,7 +524,7 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev,

struct cfg80211_bss*
cfg80211_inform_bss(struct wiphy *wiphy,
- struct ieee80211_channel *channel,
+ const struct ieee80211_channel *channel,
const u8 *bssid,
u64 timestamp, u16 capability, u16 beacon_interval,
const u8 *ie, size_t ielen,
diff --git a/net/wireless/wext-sme.c b/net/wireless/wext-sme.c
index 6fffe62..357c9f7 100644
--- a/net/wireless/wext-sme.c
+++ b/net/wireless/wext-sme.c
@@ -125,7 +125,7 @@ int cfg80211_mgd_wext_giwfreq(struct net_device *dev,
struct iw_freq *freq, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
- struct ieee80211_channel *chan = NULL;
+ const struct ieee80211_channel *chan = NULL;

/* call only for station! */
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
--
1.7.5.rc3.dirty

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