diff options
Diffstat (limited to 'net/wireless/util.c')
| -rw-r--r-- | net/wireless/util.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/net/wireless/util.c b/net/wireless/util.c index f49b55724f83..040d62051eb9 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -743,7 +743,7 @@ __ieee80211_amsdu_copy(struct sk_buff *skb, unsigned int hlen, return NULL; /* - * When reusing framents, copy some data to the head to simplify + * When reusing fragments, copy some data to the head to simplify * ethernet header handling and speed up protocol header processing * in the stack later. */ @@ -2923,3 +2923,32 @@ bool cfg80211_radio_chandef_valid(const struct wiphy_radio *radio, return true; } EXPORT_SYMBOL(cfg80211_radio_chandef_valid); + +bool cfg80211_wdev_channel_allowed(struct wireless_dev *wdev, + struct ieee80211_channel *chan) +{ + struct wiphy *wiphy = wdev->wiphy; + const struct wiphy_radio *radio; + struct cfg80211_chan_def chandef; + u32 radio_mask; + int i; + + radio_mask = wdev->radio_mask; + if (!wiphy->n_radio || radio_mask == BIT(wiphy->n_radio) - 1) + return true; + + cfg80211_chandef_create(&chandef, chan, NL80211_CHAN_HT20); + for (i = 0; i < wiphy->n_radio; i++) { + if (!(radio_mask & BIT(i))) + continue; + + radio = &wiphy->radio[i]; + if (!cfg80211_radio_chandef_valid(radio, &chandef)) + continue; + + return true; + } + + return false; +} +EXPORT_SYMBOL(cfg80211_wdev_channel_allowed); |