From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Date: Mon, 28 Nov 2011 20:59:39 +0100
From: Johan Hovold <jhovold@gmail.com>
To: Greg KH <greg@kroah.com>
Cc: Wey-Yi Guy <wey-yi.w.guy@intel.com>,
	"John W. Linville" <linville@tuxdriver.com>,
	linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org,
	stable@vger.kernel.org
Subject: stable-3.1: iwlwifi broken with nomsi
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Hi Greg, 

I believe commit 63665158282dd3b5d70 (iwlwifi: allow pci_enable_msi fail)
needs to be added to the 3.1 stable tree as the driver fails to probe
with MSI disabled since commit 084dd79172cb3 (iwlagn: move PCI related
operations from probe and remove to PCI layer) without it:

[    2.564901] iwlagn 0000:0e:00.0: PCI INT A -> GSI 18 (level, low) ->
IRQ 18
[    2.564962] iwlagn 0000:0e:00.0: setting latency timer to 64
[    2.564977] iwlagn 0000:0e:00.0: pci_resource_len = 0x00002000
[    2.567136] iwlagn 0000:0e:00.0: pci_resource_base = f8038000
[    2.569274] iwlagn 0000:0e:00.0: HW Revision ID = 0x0
[    2.571375] iwlagn 0000:0e:00.0: pci_enable_msi failed
[    2.571431] iwlagn 0000:0e:00.0: PCI INT A disabled
[    2.575598] iwlagn: probe of 0000:0e:00.0 failed with error -1

The problem was initially reported here:

	https://lkml.org/lkml/2011/10/26/314

but the fix was never marked for stable.

Thanks,
Johan