netdev - Re: [Patch 2/2] mlx4: add dynamic LRO disable support

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Date:	Mon, 07 Jun 2010 21:15:46 +0800
From:	Cong Wang <amwang@...hat.com>
To:	Stanislaw Gruszka <sgruszka@...hat.com>
CC:	Ben Hutchings <bhutchings@...arflare.com>, netdev@...r.kernel.org,
	herbert.xu@...hat.com, nhorman@...hat.com, davem@...emloft.net
Subject: Re: [Patch 2/2] mlx4: add dynamic LRO disable support

On 06/07/10 19:00, Stanislaw Gruszka wrote:
> On Mon, 07 Jun 2010 16:51:49 +0800
> Cong Wang<amwang@...hat.com>  wrote:
>
>>> Now that I look at the patch again, I see you're using a static (i.e.
>>> global) variable to 'back up' the non-zero (enabled) value of num_lro.
>>> This is introducing a bug!  The correct value is apparently set in
>>> mlx4_en_get_profile(); you would need to replicate that.
>>>
>>
>> Oh, probably, but unfortunately 'num_lro' is static so only visible
>> in en_main.c.
>
> So just remove "static" and make it global :-)
>

Not that easy, it is defined with a macro which is also used
by other parameters. :-/

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