diff options
Diffstat (limited to 'net/mac80211/main.c')
| -rw-r--r-- | net/mac80211/main.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/net/mac80211/main.c b/net/mac80211/main.c index e7eb2cf..2543e48 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -34,7 +34,7 @@ #include "debugfs.h" -bool ieee80211_disable_40mhz_24ghz; +static bool ieee80211_disable_40mhz_24ghz; module_param(ieee80211_disable_40mhz_24ghz, bool, 0644); MODULE_PARM_DESC(ieee80211_disable_40mhz_24ghz, "Disable 40MHz support in the 2.4GHz band"); @@ -723,6 +723,18 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) } channels += sband->n_channels; + /* + * Since ieee80211_disable_40mhz_24ghz is global, we can + * modify the sband's ht data even if the driver uses a + * global structure for that. + */ + if (ieee80211_disable_40mhz_24ghz && + band == IEEE80211_BAND_2GHZ && + sband->ht_cap.ht_supported) { + sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; + sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SGI_40; + } + if (max_bitrates < sband->n_bitrates) max_bitrates = sband->n_bitrates; supp_ht = supp_ht || sband->ht_cap.ht_supported; |