linux-kernel - Re: [PATCH 1/1] Net: e100, fix iomap mem accesses

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Message-ID: <479E57CF.5040308@intel.com>
Date:	Mon, 28 Jan 2008 14:31:43 -0800
From:	"Kok, Auke" <auke-jan.h.kok@...el.com>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Jiri Slaby <jirislaby@...il.com>
CC:	Jeff Garzik <jeff@...zik.org>, linux-kernel@...r.kernel.org,
	jesse.brandeburg@...el.com, jeffrey.t.kirsher@...el.com,
	john.ronciak@...el.com, e1000-devel@...ts.sourceforge.net,
	venkatesh.pallipadi@...el.com
Subject: Re: [PATCH 1/1] Net: e100, fix iomap mem accesses

Andrew Morton wrote:
> On Fri, 18 Jan 2008 14:38:51 -0500 Jeff Garzik <jeff@...zik.org> wrote:
> 
>> Jiri Slaby wrote:
>>> readX functions are not permitted on iomap-ped space change to ioreadX,
>>> also pci_unmap pci_map-ped space on exit (instead of iounmap).
>>>
>>> Signed-off-by: Jiri Slaby <jirislaby@...il.com>
>>> ---
>>>  drivers/net/e100.c |    8 ++++----
>>>  1 files changed, 4 insertions(+), 4 deletions(-)
>>>
>>> diff --git a/drivers/net/e100.c b/drivers/net/e100.c
>>> index 51cf577..47548ef 100644
>>> --- a/drivers/net/e100.c
>>> +++ b/drivers/net/e100.c
>>> @@ -1836,7 +1836,7 @@ static int e100_rx_indicate(struct nic *nic, struct rx *rx,
>>>  		if ((le16_to_cpu(rfd->command) & cb_el) &&
>>>  		    (RU_RUNNING == nic->ru_running))
>>>  
>>> -			if (readb(&nic->csr->scb.status) & rus_no_res)
>>> +			if (ioread8(&nic->csr->scb.status) & rus_no_res)
>>>  				nic->ru_running = RU_SUSPENDED;
>>>  		return -ENODATA;
>>>  	}
>>> @@ -1859,7 +1859,7 @@ static int e100_rx_indicate(struct nic *nic, struct rx *rx,
>>>  	if ((le16_to_cpu(rfd->command) & cb_el) &&
>>>  	    (RU_RUNNING == nic->ru_running)) {
>>>  
>>> -	    if (readb(&nic->csr->scb.status) & rus_no_res)
>>> +	    if (ioread8(&nic->csr->scb.status) & rus_no_res)
>>>  		nic->ru_running = RU_SUSPENDED;
>>>  	}
>>>  
>>> @@ -1958,7 +1958,7 @@ static void e100_rx_clean(struct nic *nic, unsigned int *work_done,
>>>  
>>>  	if(restart_required) {
>>>  		// ack the rnr?
>>> -		writeb(stat_ack_rnr, &nic->csr->scb.stat_ack);
>>> +		iowrite8(stat_ack_rnr, &nic->csr->scb.stat_ack);
>>>  		e100_start_receiver(nic, nic->rx_to_clean);
>>>  		if(work_done)
>>>  			(*work_done)++;
>>> @@ -2774,7 +2774,7 @@ static void __devexit e100_remove(struct pci_dev *pdev)
>>>  		struct nic *nic = netdev_priv(netdev);
>>>  		unregister_netdev(netdev);
>>>  		e100_free(nic);
>>> -		iounmap(nic->csr);
>>> +		pci_iounmap(pdev, nic->csr);
>>>  		free_netdev(netdev);
>>>  		pci_release_regions(pdev);
>> ACK, but patch doesn't seem to apply...
> 
> It's been a week, nothing seems to have happened and the e100 maintainers
> are asleep.

not asleep, just pleasantly stuck on an atol in the south pacific, far far away
from LCA :)

> Please resend when convenient.  Maybe more luodly or something, I dunno.

just repost to me and Jeff and I'll pick it up this week if Jeff does not.

I think the recent non-cache coherent fixes might have messed up the merge.

Auke
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