netdev - Re: [E1000-devel] [PATCH] NET: Change pci_enable_device to pci_reenable

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Date:	Wed, 8 Aug 2007 10:44:59 -0700
From:	Brandon Philips <bphilips@...e.de>
To:	"Kok, Auke" <auke-jan.h.kok@...el.com>
Cc:	netdev@...r.kernel.org, e1000-devel@...ts.sourceforge.net,
	ram.vepa@...erion.com
Subject: Re: [E1000-devel] [PATCH] NET: Change pci_enable_device to
	pci_reenable_device to keep device enable balance

On 10:36 Wed 08 Aug 2007, Kok, Auke wrote:
> Brandon Philips wrote:
>> I sent this last week as part of my devres patches but it is purely a
>> bug fix and can be merged now.
>> On a slot_reset event pci_disable_device() is never called so calling
>> pci_enable_device() will unbalance the enable count.
>> Signed-off-by: Brandon Philips <bphilips@...e.de>
>> Acked-by: Tejun Heo <htejun@...il.com>
>
>
> ACK all the parts except s2io. Of course, I haven't seen the 
> pci_reenable_device rename patch in Jeff's tree yet...

Actually, it is in Linus's tree on git.kernel.org.

>> ---
>>  drivers/net/e100.c             |    2 +-
>>  drivers/net/e1000/e1000_main.c |    2 +-
>>  drivers/net/ixgb/ixgb_main.c   |    2 +-
>>  drivers/net/s2io.c             |    2 +-
>>  4 files changed, 4 insertions(+), 4 deletions(-)
>> Index: linux-2.6/drivers/net/e100.c
>> ===================================================================
>> --- linux-2.6.orig/drivers/net/e100.c
>> +++ linux-2.6/drivers/net/e100.c
>> @@ -2828,7 +2828,7 @@ static pci_ers_result_t e100_io_slot_res
>>  	struct net_device *netdev = pci_get_drvdata(pdev);
>>  	struct nic *nic = netdev_priv(netdev);
>>  -	if (pci_enable_device(pdev)) {
>> +	if (pci_reenable_device(pdev)) {
>>  		printk(KERN_ERR "e100: Cannot re-enable PCI device after reset.\n");
>>  		return PCI_ERS_RESULT_DISCONNECT;
>>  	}
>> Index: linux-2.6/drivers/net/e1000/e1000_main.c
>> ===================================================================
>> --- linux-2.6.orig/drivers/net/e1000/e1000_main.c
>> +++ linux-2.6/drivers/net/e1000/e1000_main.c
>> @@ -5270,7 +5270,7 @@ static pci_ers_result_t e1000_io_slot_re
>>  	struct net_device *netdev = pci_get_drvdata(pdev);
>>  	struct e1000_adapter *adapter = netdev->priv;
>>  -	if (pci_enable_device(pdev)) {
>> +	if (pci_reenable_device(pdev)) {
>>  		printk(KERN_ERR "e1000: Cannot re-enable PCI device after reset.\n");
>>  		return PCI_ERS_RESULT_DISCONNECT;
>>  	}
>> Index: linux-2.6/drivers/net/ixgb/ixgb_main.c
>> ===================================================================
>> --- linux-2.6.orig/drivers/net/ixgb/ixgb_main.c
>> +++ linux-2.6/drivers/net/ixgb/ixgb_main.c
>> @@ -2294,7 +2294,7 @@ static pci_ers_result_t ixgb_io_slot_res
>>  	struct net_device *netdev = pci_get_drvdata(pdev);
>>  	struct ixgb_adapter *adapter = netdev_priv(netdev);
>>  -	if(pci_enable_device(pdev)) {
>> +	if(pci_reenable_device(pdev)) {
>>  		DPRINTK(PROBE, ERR, "Cannot re-enable PCI device after reset.\n");
>>  		return PCI_ERS_RESULT_DISCONNECT;
>>  	}
>> Index: linux-2.6/drivers/net/s2io.c
>> ===================================================================
>> --- linux-2.6.orig/drivers/net/s2io.c
>> +++ linux-2.6/drivers/net/s2io.c
>> @@ -7833,7 +7833,7 @@ static pci_ers_result_t s2io_io_slot_res
>>  	struct net_device *netdev = pci_get_drvdata(pdev);
>>  	struct s2io_nic *sp = netdev->priv;
>>  -	if (pci_enable_device(pdev)) {
>> +	if (pci_reenable_device(pdev)) {
>>  		printk(KERN_ERR "s2io: "
>>  		       "Cannot re-enable PCI device after reset.\n");
>>  		return PCI_ERS_RESULT_DISCONNECT;
>> -------------------------------------------------------------------------
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