All of lore.kernel.org
 help / color / mirror / Atom feed
From: Ben Greear <greearb@candelatech.com>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: David Miller <davem@davemloft.net>, netdev@vger.kernel.org
Subject: Re: [PATCH]  net-sysfs: make flags symmetrical
Date: Mon, 01 Apr 2013 13:16:43 -0700	[thread overview]
Message-ID: <5159EB2B.7070504@candelatech.com> (raw)
In-Reply-To: <20130401115315.1f8e4213@nehalam.linuxnetplumber.net>

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@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

  reply	other threads:[~2013-04-01 20:16 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-01 18:53 [PATCH] net-sysfs: make flags symmetrical Stephen Hemminger
2013-04-01 20:16 ` Ben Greear [this message]
2013-04-01 21:18   ` David Miller
2013-04-01 21:32     ` Ben Greear
2013-04-01 22:04   ` Stephen Hemminger
2013-04-01 22:26     ` Ben Greear

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=5159EB2B.7070504@candelatech.com \
    --to=greearb@candelatech.com \
    --cc=davem@davemloft.net \
    --cc=netdev@vger.kernel.org \
    --cc=stephen@networkplumber.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.