netdev - Re: [PATCH] netpoll: Introduce netpoll_carrier

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Message-ID: <20090707180354.2f203648@nehalam>
Date:	Tue, 7 Jul 2009 18:03:54 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Anton Vorontsov <avorontsov@...mvista.com>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH] netpoll: Introduce netpoll_carrier_timeout kernel
 option

On Wed, 8 Jul 2009 05:00:30 +0400
Anton Vorontsov <avorontsov@...mvista.com> wrote:

> Some PHYs require longer timeouts for carrier detection, and
> auto-negotiation process may take indefinite amount of time.
> 
> It may be inconvenient to force longer timeouts for sane PHYs,
> so let's introduce a kernel command line option.
> 
> Signed-off-by: Anton Vorontsov <avorontsov@...mvista.com>
> ---
>  Documentation/kernel-parameters.txt |    5 +++++
>  net/core/netpoll.c                  |   11 ++++++++++-
>  2 files changed, 15 insertions(+), 1 deletions(-)

A sysctl (or module option) is a less awkward interface for something
like this. Kernel command line parameters are ugly step children
loved only by embedded developers.
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