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mac80211: Allow disabling SGI-20

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This allows user-space (wpa_supplicant) to disable
short guard interval (SGI) for 20Mhz.  The SGI-40
disable option is already handled.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Ben Greear 2012-12-12 16:56:20 -08:00 committed by Johannes Berg
parent 694c618632
commit bc0784d951
2 changed files with 4 additions and 0 deletions
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3
net/mac80211/ht.c
View File

@ -62,6 +62,9 @@ void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
__check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_SUP_WIDTH_20_40);
__check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_SGI_40);
/* Allow user to disable SGI-20 (SGI-40 is handled above) */
__check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_SGI_20);
/* Allow user to disable the max-AMSDU bit. */
__check_htcap_disable(sdata, ht_cap, IEEE80211_HT_CAP_MAX_AMSDU);

1
net/mac80211/main.c
View File

@ -537,6 +537,7 @@ static const struct ieee80211_ht_cap mac80211_ht_capa_mod_mask = {
.cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
IEEE80211_HT_CAP_MAX_AMSDU |
IEEE80211_HT_CAP_SGI_20 |
IEEE80211_HT_CAP_SGI_40),
.mcs = {
.rx_mask = { 0xff, 0xff, 0xff, 0xff, 0xff,