netdev - [PATCH net-next v2] e1000e: restore call to pci_clear

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Message-Id: <20130612194408.8680.66934.email-sent-by-dnelson@teal>
Date:	Wed, 12 Jun 2013 15:44:08 -0400
From:	Dean Nelson <dnelson@...hat.com>
To:	David Miller <davem@...emloft.net>
Cc:	Konstantin Khlebnikov <khlebnikov@...nvz.org>,
	netdev@...r.kernel.org, Bruce Allan <bruce.w.allan@...el.com>,
	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [PATCH net-next v2] e1000e: restore call to pci_clear_master()

In attempting to resolve a minor merge conflict, commit e5f2ef7ab4690d2e8faa
(Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net) accidently
dropped a call to pci_clear_master() that was intended to remain in place.

Commit 4e0855dff094b0d56d6b (e1000e: fix pci-device enable-counter balance)
replaced a call to pci_disable_device() by one to pci_clear_master(). And then
commit 66148babe728f3e00e13 (e1000e: fix runtime power management transitions)
deleted a number of lines starting two lines following that call.

This patch restores the call to pci_clear_master() in __e1000_shutdown().

v2: added summary lines (enclosed in parens) following commit IDs

Signed-off-by: Dean Nelson <dnelson@...hat.com>
---
Both stable 3.8.y and 3.9.y appear to have the call to pci_clear_master() in
__e1000_shutdown() as desired.  I'm not sure how they avoided the conflict.

 drivers/net/ethernet/intel/e1000e/netdev.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 77f81cb..5475cf4 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -5995,6 +5995,8 @@ static int __e1000_shutdown(struct pci_dev *pdev, bool runtime)
 	 */
 	e1000e_release_hw_control(adapter);
 
+	pci_clear_master(pdev);
+
 	/* The pci-e switch on some quad port adapters will report a
 	 * correctable error when the MAC transitions from D0 to D3.  To
 	 * prevent this we need to mask off the correctable errors on the
--
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