netdev - Re: [PATCH] net-sysfs: make flags symmetrical

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Date:	Mon, 01 Apr 2013 13:16:43 -0700
From:	Ben Greear <greearb@...delatech.com>
To:	Stephen Hemminger <stephen@...workplumber.org>
CC:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH]  net-sysfs: make flags symmetrical

On 04/01/2013 11:53 AM, Stephen Hemminger wrote:
> The flags reported by sysfs are the raw kernel flags, not the version
> exported to user space. This leads to the unsymmetrical behaviour that
> read != write. An example of this is when a device is part of a
> bridge.  The PROMISC flag returned from sysfs will not be the same as
> other API's.
>
> The reason this patch deserves wider discussion is someone might be
> depending on sysfs to read raw kernel flags.

I am depending on this feature.  There is no other way I know
of to determine if an interface is actually currently acting
PROMISC or not.

Please don't 'fix' this.

Thanks,
Ben

-- 
Ben Greear <greearb@...delatech.com>
Candela Technologies Inc  http://www.candelatech.com

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