linux-kernel - Re: [PATCH] ixgbevf: delete unneeded call to pci_set_power

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Message-ID: <309B89C4C689E141A5FF6A0C5FB2118B7314262D@ORSMSX101.amr.corp.intel.com>
Date:	Tue, 21 Jan 2014 20:47:17 +0000
From:	"Brown, Aaron F" <aaron.f.brown@...el.com>
To:	"Julia.Lawall@...6.fr" <Julia.Lawall@...6.fr>
CC:	"Kirsher, Jeffrey T" <jeffrey.t.kirsher@...el.com>,
	"Brandeburg, Jesse" <jesse.brandeburg@...el.com>,
	"Allan, Bruce W" <bruce.w.allan@...el.com>,
	"Wyborny, Carolyn" <carolyn.wyborny@...el.com>,
	"Skidmore, Donald C" <donald.c.skidmore@...el.com>,
	"Rose, Gregory V" <gregory.v.rose@...el.com>,
	"Duyck, Alexander H" <alexander.h.duyck@...el.com>,
	"Ronciak, John" <john.ronciak@...el.com>,
	"kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>,
	"e1000-devel@...ts.sourceforge.net" 
	<e1000-devel@...ts.sourceforge.net>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ixgbevf: delete unneeded call to pci_set_power_state

On Tue, 2014-01-07 at 18:00 +0100, Julia Lawall wrote:
> From: Julia Lawall <Julia.Lawall@...6.fr>
> 
> This driver does not need to adjust the power state on suspend, so the
> call to pci_set_power_state in the resume function is a no-op.  Drop it, to
> make the code more understandable.
> 
> Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>
Tested-by: Phil Schmitt <phillip.j.schmitt@...el.com>
Signed-off-by: Aaron Brown <aaron.f.brown@...el.com>

> ---
>  drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c |    1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
> index a5d3167..5709fb0 100644
> --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
> +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
> @@ -3226,7 +3226,6 @@ static int ixgbevf_resume(struct pci_dev *pdev)
>  	struct net_device *netdev = adapter->netdev;
>  	u32 err;
>  
> -	pci_set_power_state(pdev, PCI_D0);
>  	pci_restore_state(pdev);
>  	/*
>  	 * pci_restore_state clears dev->state_saved so call
> 
> --
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