From: Kei Tokunaga <ktokunag@redhat.com>
Subject: [RHEL5 PATCH 4/5] pciehp: 'irq XX: nobody cared' kernel oops is reported
Date: Wed, 29 Nov 2006 12:41:32 -0500
Bugzilla: 216939
Message-Id: <456DC64C.4060209@redhat.com>
Changelog: pciehp: pci_disable_msi() called to early


BZ216939
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=216939

This fix was posted to the community, and is waiting for
being merged to upstream.  It already got "Signed-off-by:"
from the maintainer.

This patch fixes the problem that kernel oops message "irq XX:
nobody cared" is reported when pciehp driver is rmmoded and
then insmoded again.  The cause is that pciehp driver calls
pci_disable_msi() at controller release time, even though it
must be done by PCI Express Port Bus driver.  This patch
removes unnecessary pci_disable_msi() call from pciehp driver.

This patch applies to -2.6.18-1.2747.el5 and I have verified
that it worked all right.

Thanks,
Kei

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>

---
 drivers/pci/hotplug/pciehp_hpc.c |    2 --
 1 file changed, 2 deletions(-)

--- gregkh-2.6.orig/drivers/pci/hotplug/pciehp_hpc.c
+++ gregkh-2.6/drivers/pci/hotplug/pciehp_hpc.c
@@ -718,8 +718,6 @@ static void hpc_release_ctlr(struct cont
 		if (php_ctlr->irq) {
 			free_irq(php_ctlr->irq, ctrl);
 			php_ctlr->irq = 0;
-			if (!pcie_mch_quirk) 
-				pci_disable_msi(php_ctlr->pci_dev);
 		}
 	}
 	if (php_ctlr->pci_dev) 

--