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From: Dan Carpenter <dan.carpenter@oracle.com>
To: "Christian Benvenuti (benve)" <benve@cisco.com>
Cc: David Miller <davem@davemloft.net>,
	"Roopa Prabhu (roprabhu)" <roprabhu@cisco.com>,
	"Neel Patel (neepatel)" <neepatel@cisco.com>,
	"Nishank Trivedi (nistrive)" <nistrive@cisco.com>,
	netdev@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: Re: [patch] enic: fix an endian bug in enic_probe()
Date: Fri, 2 Mar 2012 09:06:53 +0300	[thread overview]
Message-ID: <20120302060653.GU1003@mwanda> (raw)
In-Reply-To: <184D23435BECB444AB6B9D4630C8EC8303853051@XMB-RCD-303.cisco.com>

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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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      reply	other threads:[~2012-03-02  6:04 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-01  7:19 [patch] enic: fix an endian bug in enic_probe() Dan Carpenter
2012-03-01 22:24 ` David Miller
2012-03-02  1:23   ` Christian Benvenuti (benve)
2012-03-02  6:06     ` Dan Carpenter [this message]

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