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cfg80211: Add a function to get the number of supported channels

Sfoglia il codice sorgente 
Add a utility function to get the number of channels supported by
the device, and update the places in the code that need this data.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
[replace another occurrence in libertas, fix kernel-doc, fix bugs]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Ilan Peer
2014-01-09 11:37:23 +02:00
committato da Johannes Berg
parent 685328b296
commit bdfbec2d2d
6 ha cambiato i file con 29 aggiunte e 32 eliminazioni
Scarica il file Patch Scarica il file Diff Expand all files Collapse all files

13
net/wireless/nl80211.c
Vedi File

@@ -5285,12 +5285,7 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
goto unlock;
}
} else {
enum ieee80211_band band;
n_channels = 0;
for (band = 0; band < IEEE80211_NUM_BANDS; band++)
if (wiphy->bands[band])
n_channels += wiphy->bands[band]->n_channels;
n_channels = ieee80211_get_num_supported_channels(wiphy);
}
if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
@@ -5498,11 +5493,7 @@ static int nl80211_start_sched_scan(struct sk_buff *skb,
if (!n_channels)
return -EINVAL;
} else {
n_channels = 0;
for (band = 0; band < IEEE80211_NUM_BANDS; band++)
if (wiphy->bands[band])
n_channels += wiphy->bands[band]->n_channels;
n_channels = ieee80211_get_num_supported_channels(wiphy);
}
if (info->attrs[NL80211_ATTR_SCAN_SSIDS])

7
net/wireless/scan.c
Vedi File

@@ -1089,11 +1089,8 @@ int cfg80211_wext_siwscan(struct net_device *dev,
/* Determine number of channels, needed to allocate creq */
if (wreq && wreq->num_channels)
n_channels = wreq->num_channels;
else {
for (band = 0; band < IEEE80211_NUM_BANDS; band++)
if (wiphy->bands[band])
n_channels += wiphy->bands[band]->n_channels;
}
else
n_channels = ieee80211_get_num_supported_channels(wiphy);
creq = kzalloc(sizeof(*creq) + sizeof(struct cfg80211_ssid) +
n_channels * sizeof(void *),

13
net/wireless/sme.c
Vedi File

@@ -70,18 +70,11 @@ static int cfg80211_conn_scan(struct wireless_dev *wdev)
if (rdev->scan_req)
return -EBUSY;
if (wdev->conn->params.channel) {
if (wdev->conn->params.channel)
n_channels = 1;
} else {
enum ieee80211_band band;
n_channels = 0;
else
n_channels = ieee80211_get_num_supported_channels(wdev->wiphy);
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
if (!wdev->wiphy->bands[band])
continue;
n_channels += wdev->wiphy->bands[band]->n_channels;
}
}
request = kzalloc(sizeof(*request) + sizeof(request->ssids[0]) +
sizeof(request->channels[0]) * n_channels,
GFP_KERNEL);

13
net/wireless/util.c
Vedi File

@@ -1481,6 +1481,19 @@ int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
return 0;
}
unsigned int ieee80211_get_num_supported_channels(struct wiphy *wiphy)
{
enum ieee80211_band band;
unsigned int n_channels = 0;
for (band = 0; band < IEEE80211_NUM_BANDS; band++)
if (wiphy->bands[band])
n_channels += wiphy->bands[band]->n_channels;
return n_channels;
}
EXPORT_SYMBOL(ieee80211_get_num_supported_channels);
/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
/* Ethernet-II snap header (RFC1042 for most EtherTypes) */
const unsigned char rfc1042_header[] __aligned(2) =