Patch "iwlwifi: pcie: fix (again) prepare card flow" has been added to the 4.3-stable tree

Patch "iwlwifi: pcie: fix (again) prepare card flow" has been added to the 4.3-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    iwlwifi: pcie: fix (again) prepare card flow

to the 4.3-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     iwlwifi-pcie-fix-again-prepare-card-flow.patch
and it can be found in the queue-4.3 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 03a19cbb91994212be72ce15ac3406fa9f8ba079 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Wed, 21 Oct 2015 19:55:32 +0300
Subject: iwlwifi: pcie: fix (again) prepare card flow

From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

commit 03a19cbb91994212be72ce15ac3406fa9f8ba079 upstream.

The hardware bug in the commit mentioned below forces us
not to re-enable the clock gating in the Host Cluster.
The impact on the power consumption is minimal and it allows
the WAKE_ME interrupt to propagate.

Fixes: c9fdec9f3970 ("iwlwifi: pcie: fix prepare card flow")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/net/wireless/iwlwifi/pcie/trans.c |   10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -592,10 +592,8 @@ static int iwl_pcie_prepare_card_hw(stru
 
 		do {
 			ret = iwl_pcie_set_hw_ready(trans);
-			if (ret >= 0) {
-				ret = 0;
-				goto out;
-			}
+			if (ret >= 0)
+				return 0;
 
 			usleep_range(200, 1000);
 			t += 200;
@@ -605,10 +603,6 @@ static int iwl_pcie_prepare_card_hw(stru
 
 	IWL_ERR(trans, "Couldn't prepare the card\n");
 
-out:
-	iwl_clear_bit(trans, CSR_DBG_LINK_PWR_MGMT_REG,
-		      CSR_RESET_LINK_PWR_MGMT_DISABLED);
-
 	return ret;
 }
 


Patches currently in stable-queue which might be from emmanuel.grumbach@intel.com are

queue-4.3/iwlwifi-add-new-pci-ids-for-the-8260-series.patch
queue-4.3/mac80211-fix-local-deauth-while-associating.patch
queue-4.3/iwlwifi-pcie-fix-again-prepare-card-flow.patch
queue-4.3/mac80211-allow-null-chandef-in-tracing.patch