diff options
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/rs.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c index b9682d7e82fe..999efc33b9da 100644 --- a/drivers/net/wireless/iwlwifi/mvm/rs.c +++ b/drivers/net/wireless/iwlwifi/mvm/rs.c @@ -1318,6 +1318,13 @@ static void rs_set_stay_in_table(struct iwl_mvm *mvm, u8 is_legacy, lq_sta->visited_columns = 0; } +static inline int rs_get_max_rate_from_mask(unsigned long rate_mask) +{ + if (rate_mask) + return find_last_bit(&rate_mask, BITS_PER_LONG); + return IWL_RATE_INVALID; +} + static int rs_get_max_allowed_rate(struct iwl_lq_sta *lq_sta, const struct rs_tx_column *column) { @@ -1613,8 +1620,12 @@ static enum rs_column rs_get_next_column(struct iwl_mvm *mvm, continue; max_rate = rs_get_max_allowed_rate(lq_sta, next_col); - if (WARN_ON_ONCE(max_rate == IWL_RATE_INVALID)) + if (max_rate == IWL_RATE_INVALID) { + IWL_DEBUG_RATE(mvm, + "Skip column %d: no rate is allowed in this column\n", + next_col_id); continue; + } max_expected_tpt = expected_tpt_tbl[max_rate]; if (tpt >= max_expected_tpt) { @@ -2765,12 +2776,12 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta, if (IWL_MVM_RS_DISABLE_MIMO) lq_sta->active_mimo2_rate = 0; - lq_sta->max_legacy_rate_idx = find_last_bit(&lq_sta->active_legacy_rate, - BITS_PER_LONG); - lq_sta->max_siso_rate_idx = find_last_bit(&lq_sta->active_siso_rate, - BITS_PER_LONG); - lq_sta->max_mimo2_rate_idx = find_last_bit(&lq_sta->active_mimo2_rate, - BITS_PER_LONG); + lq_sta->max_legacy_rate_idx = + rs_get_max_rate_from_mask(lq_sta->active_legacy_rate); + lq_sta->max_siso_rate_idx = + rs_get_max_rate_from_mask(lq_sta->active_siso_rate); + lq_sta->max_mimo2_rate_idx = + rs_get_max_rate_from_mask(lq_sta->active_mimo2_rate); IWL_DEBUG_RATE(mvm, "RATE MASK: LEGACY=%lX SISO=%lX MIMO2=%lX VHT=%d LDPC=%d STBC%d\n", |