Re: 3.1-rc9 and 3.1 wifi problem , problem continues with 3.1

[wwguy <wey-yi.w.guy@intel.com>]

[-- Attachment #1: Type: text/plain, Size: 667 bytes --]

On Wed, 2011-10-26 at 14:47 -0700, werner wrote:
> As reported, with 3.1-rc9 the wifi of a friend's laptop 
> didnt work at all.  With 3.0.4 it's working normally.
> 
> The problem continues with 3.1
> 
> Now I take some files for identify the problem.  Below see 
> lsmod and dmesg , and enclosed is hwinfo and syslog of 
> that laptop as it was running with 3.1 just as wifi didn't 
> work.      For comparison, on syslog you can see the 
> previous boots (I separated them by blank lines), all with 
> 3.0.4 , when wifi was working.
> 
> I hope that's now enough information to fix that problem.
> 
> 
> Werner Landgraf


could you try this test patch

Thanks
Wey

[-- Attachment #2: 0001-iwlwifi-allow-pci_enable_msi-fail.patch --]
[-- Type: text/x-patch, Size: 1126 bytes --]

>From 64a1b22cc9d179d69c66b23619691ba2a13ee646 Mon Sep 17 00:00:00 2001
From: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Wed, 26 Oct 2011 15:15:38 -0700
Subject: [PATCH 1/1] iwlwifi: allow pci_enable_msi fail

Continue the init process even fail to enable msi

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-pci.c |    7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-pci.c b/drivers/net/wireless/iwlwifi/iwl-pci.c
index 35d4551..911186f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-pci.c
+++ b/drivers/net/wireless/iwlwifi/iwl-pci.c
@@ -429,10 +429,9 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);
 
 	err = pci_enable_msi(pdev);
-	if (err) {
-		dev_printk(KERN_ERR, &pdev->dev, "pci_enable_msi failed");
-		goto out_iounmap;
-	}
+	if (err)
+		dev_printk(KERN_ERR, &pdev->dev,
+			"pci_enable_msi failed(0X%x)", err);
 
 	/* TODO: Move this away, not needed if not MSI */
 	/* enable rfkill interrupt: hw bug w/a */
-- 
1.7.0.4