netdev - Re: [patch] enic: fix an endian bug in enic

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Message-ID: <20120302060653.GU1003@mwanda>
Date:	Fri, 2 Mar 2012 09:06:53 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	"Christian Benvenuti (benve)" <benve@...co.com>
Cc:	David Miller <davem@...emloft.net>,
	"Roopa Prabhu (roprabhu)" <roprabhu@...co.com>,
	"Neel Patel (neepatel)" <neepatel@...co.com>,
	"Nishank Trivedi (nistrive)" <nistrive@...co.com>,
	netdev@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [patch] enic: fix an endian bug in enic_probe()

On Thu, Mar 01, 2012 at 07:23:45PM -0600, Christian Benvenuti (benve) wrote:
> Thanks Dan, David.
> 
> Just one quick comment...
> pci_enable_sriov's 2nd input is declared as type int and we
> were using u32 instead (for a non negative 16bit value).
> With a quick check I noticed that other pci_enable_sriov callers
> do something similar and may need to be taken care too:
> 

The problem was calling pci_read_config_word() not
pci_enable_sriov().  I did consider passing a temporary variable to
pci_read_config_word() and then storing that in num_vfs but it
seemed more complicated.

Looking at the other drivers now, I see that's how some of them do
it.  But it makes sense for them because they have the num_vfs which
the user can configure and the number from the hardware which is the
max that are supported.

Either way would fix it, but I feel that my fix is not terribly
ugly.

regards,
dan carpenter

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