From: Eyal Shapira Date: Tue, 7 Jan 2014 16:19:35 +0000 (+0200) Subject: iwlwifi: mvm: rs: fix handling of column switch error X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=75d3e2d693a695d2a9df27de697fb73cb3f34c23;p=linux-beck.git iwlwifi: mvm: rs: fix handling of column switch error If we can't switch to a column because no rates are supported in that column this led to a state where the search cycle got stuck and never ended. This in turn also led to aggregation not being turned on. Fix this by marking a column as visited if we can't switch to it. Reported-and-tested-by: Karl Beldan Signed-off-by: Eyal Shapira Signed-off-by: Emmanuel Grumbach --- diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c index c9ff41c514ae..54887b952eb5 100644 --- a/drivers/net/wireless/iwlwifi/mvm/rs.c +++ b/drivers/net/wireless/iwlwifi/mvm/rs.c @@ -1591,6 +1591,8 @@ static int rs_switch_to_column(struct iwl_mvm *mvm, search_tbl->column = col_id; rs_set_expected_tpt_table(lq_sta, search_tbl); + lq_sta->visited_columns |= BIT(col_id); + /* Get the best matching rate if we're changing modes. e.g. * SISO->MIMO, LEGACY->SISO, MIMO->SISO */ @@ -1614,7 +1616,6 @@ static int rs_switch_to_column(struct iwl_mvm *mvm, IWL_DEBUG_RATE(mvm, "Switched to column %d: Index %d\n", col_id, rate->index); - lq_sta->visited_columns |= BIT(col_id); return 0; err: