[Vivid][SRU][PATCH] iwlwifi: mvm: fix BT coex shared antenna activity check

[Chris J Arges]

From: Eyal Shapira <eyal at wizery.com>

BugLink: http://bugs.launchpad.net/bugs/1442411

The shared antenna should be forbidden to use only if there's
high BT activity. Comparing to BT_OFF was effectively causing
us to always forbid using the shared antenna for SISO. This
leads to degraded performance in scenarios where the shared
antenna would have better performance.

Signed-off-by: Eyal Shapira <eyalx.shapira at intel.com>
Reviewed-by: Johannes Berg <johannes.berg at intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach at intel.com>
(cherry picked from commit afcee962b09842d0f4191beb4a2d08251b4c7705)
Signed-off-by: Chris J Arges <chris.j.arges at canonical.com>
---
 drivers/net/wireless/iwlwifi/mvm/coex_legacy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c b/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c
index d804585..cc348ed 100644
--- a/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c
+++ b/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c
@@ -1177,7 +1177,7 @@ bool iwl_mvm_bt_coex_is_ant_avail_old(struct iwl_mvm *mvm, u8 ant)
 bool iwl_mvm_bt_coex_is_shared_ant_avail_old(struct iwl_mvm *mvm)
 {
 	u32 ag = le32_to_cpu(mvm->last_bt_notif_old.bt_activity_grading);
-	return ag == BT_OFF;
+	return ag < BT_HIGH_TRAFFIC;
 }
 
 bool iwl_mvm_bt_coex_is_tpc_allowed_old(struct iwl_mvm *mvm,
-- 
1.9.1