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authorJohannes Berg <johannes.berg@intel.com>2011-02-16 10:46:58 +0300
committerJohn W. Linville <linville@tuxdriver.com>2011-02-19 00:54:52 +0300
commit8ba0537c620ad9f37b0e810ce0a9ff367a021f5e (patch)
tree659622a8cd43642ca6438ec6a7a3e68e82d23efd /net/mac80211/util.c
parent9bf8ab35f269d66e507de2b1ccc67a02d8284db5 (diff)
downloadlinux-8ba0537c620ad9f37b0e810ce0a9ff367a021f5e.tar.xz
mac80211: fix 2.4 GHz 40 MHz disabling
The module parameter ieee80211_disable_40mhz_24ghz was meant to allow disabling 40 MHz operation in the 2.4 GHz band by default. However, it is buggy as implemented because while it advertises to the AP that the device doesn't support 40 MHz, it will itself still use 40 MHz configurations. To fix this, clear the 40 MHz bits from the sband completely instead of overriding where used. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/util.c')
-rw-r--r--net/mac80211/util.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index cf68700abffa..26fd5d29af7f 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -986,12 +986,6 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
u16 cap = sband->ht_cap.cap;
__le16 tmp;
- if (ieee80211_disable_40mhz_24ghz &&
- sband->band == IEEE80211_BAND_2GHZ) {
- cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
- cap &= ~IEEE80211_HT_CAP_SGI_40;
- }
-
*pos++ = WLAN_EID_HT_CAPABILITY;
*pos++ = sizeof(struct ieee80211_ht_cap);
memset(pos, 0, sizeof(struct ieee80211_ht_cap));