linux-kernel - [PATCH 3.16.y-ckt 084/126] iwlwifi: mvm: fix Rx with both chains

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Message-Id: <1422361031-19364-85-git-send-email-luis.henriques@canonical.com>
Date:	Tue, 27 Jan 2015 12:16:29 +0000
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Eyal Shapira <eyalx.shapira@...el.com>,
	Emmanuel Grumbach <emmanuel.grumbach@...el.com>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.16.y-ckt 084/126] iwlwifi: mvm: fix Rx with both chains

3.16.7-ckt5 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Eyal Shapira <eyal@...ery.com>

commit c93edc639392df733c7d72db4376a9add775d18a upstream.

commit 5c90422439d6
"iwlwifi: mvm: don't allow diversity if BT Coex / TT forbid it"
broke Rx with 2 chains for diversity.
This had an impact on throughput where we're using only a single
stream (11a/b/g APs, single stream APs, static SMPS).

Fixes: 5c90422439d6 ("iwlwifi: mvm: don't allow diversity if BT Coex / TT forbid it")
Signed-off-by: Eyal Shapira <eyalx.shapira@...el.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@...el.com>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 drivers/net/wireless/iwlwifi/mvm/utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/utils.c b/drivers/net/wireless/iwlwifi/mvm/utils.c
index aa9fc77e8413..3aba78dff0ba 100644
--- a/drivers/net/wireless/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/iwlwifi/mvm/utils.c
@@ -673,7 +673,7 @@ bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm)
 	if (num_of_ant(mvm->fw->valid_rx_ant) == 1)
 		return false;
 
-	if (!mvm->cfg->rx_with_siso_diversity)
+	if (mvm->cfg->rx_with_siso_diversity)
 		return false;
 
 	ieee80211_iterate_active_interfaces_atomic(
-- 
2.1.4

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