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mac80211: minstrel: fix using short preamble CCK rates on HT clients

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[ Upstream commit 37439f2d6e ]

mi->supported[MINSTREL_CCK_GROUP] needs to be updated
short preamble rates need to be marked as supported regardless of
whether it's currently enabled. Its state can change at any time without
a rate_update call.

Fixes: 782dda00ab ("mac80211: minstrel_ht: move short preamble check out of get_rate")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Felix Fietkau 2018-10-06 19:35:03 +02:00 • committed by Greg Kroah-Hartman
commit 8bbedf4dff
1 changed files with 1 additions and 3 deletions
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4
net/mac80211/rc80211_minstrel_ht.c
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@ -1132,7 +1132,6 @@ minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband,
struct ieee80211_mcs_info *mcs = &sta->ht_cap.mcs;
u16 sta_cap = sta->ht_cap.cap;
struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
struct sta_info *sinfo = container_of(sta, struct sta_info, sta);
int use_vht;
int n_supported = 0;
int ack_dur;
@ -1258,8 +1257,7 @@ minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband,
if (!n_supported)
goto use_legacy;
if (test_sta_flag(sinfo, WLAN_STA_SHORT_PREAMBLE))
mi->cck_supported_short |= mi->cck_supported_short << 4;
mi->supported[MINSTREL_CCK_GROUP] |= mi->cck_supported_short << 4;
/* create an initial rate table with the lowest supported rates */
minstrel_ht_update_stats(mp, mi);