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Date: Mon, 11 Nov 2013 11:43:55 +0200
Message-ID: <CANUX_P1O_GOZB20m0-hcSgs8-pSDzXKJ=2_MVjVfsYLO9aSgBA@mail.gmail.com> (sfid-20131111_104401_317591_C95648AB)
Subject: Re: [Ilw] Intel Wireless 7260 hardware timed out randomly
From: Emmanuel Grumbach <egrumbach@gmail.com>
To: "Grumbach, Emmanuel" <emmanuel.grumbach@intel.com>
Cc: wzyboy <wzyboy@wzyboy.org>, Bjorn Helgaas <bhelgaas@google.com>,
	"ilw@linux.intel.com" <ilw@linux.intel.com>,
	"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
	"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>
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Sender: linux-wireless-owner@vger.kernel.org
List-ID: <linux-wireless.vger.kernel.org>

>>
>> 2013/11/10 Grumbach, Emmanuel <emmanuel.grumbach@intel.com>:
>> > It is really called L1 PM Substate.
>> > I don't really know the BIOS of ThinkPad... But we can try...
>>
>>
>> I have booted into BIOS and write down almost all the options, as attached.
>>
>> By the way, I always attach my laptop to an AC adaptor.
>>
>
> Cool.... they mask all the interesting options... oh well...

Can you please try this?

diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c
b/drivers/net/wireless/iwlwifi/pcie/trans.c
index ebe351d..f8fbe08 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -131,7 +131,7 @@ static void iwl_pcie_apm_config(struct iwl_trans *trans)
         *    power savings, even without L1.
         */
        pcie_capability_read_word(trans_pcie->pci_dev, PCI_EXP_LNKCTL, &lctl);
-       if (lctl & PCI_EXP_LNKCTL_ASPM_L1) {
+       if (0) {
                /* L1-ASPM enabled; disable(!) L0S */
                iwl_set_bit(trans, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
                dev_info(trans->dev, "L1 Enabled; Disabling L0S\n");