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authorEyal Shapira <eyal@wizery.com>2014-01-07 18:19:35 +0200
committerEmmanuel Grumbach <emmanuel.grumbach@intel.com>2014-01-13 18:42:54 +0200
commit75d3e2d693a695d2a9df27de697fb73cb3f34c23 (patch)
treec34a6e560417850c28a814a378cd3c504147368d /drivers/net/wireless
parent91b0d1198417cf4fd9a7bd4138b6909f0b359099 (diff)
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 <karl.beldan@gmail.com> Signed-off-by: Eyal Shapira <eyal@wizery.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/rs.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index c9ff41c514a..54887b952eb 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: