From: Stephen Hemminger <shemminger@linux-foundation.org>
To: Jiri Benc <jbenc@suse.cz>
Cc: netdev@vger.kernel.org,
"John W. Linville" <linville@tuxdriver.com>,
Stephen Hemminger <shemminger@osdl.org>,
David Miller <davem@davemloft.net>
Subject: Re: [RFC PATCH 1/6] invisible network devices
Date: Mon, 29 Jan 2007 10:28:14 -0800 [thread overview]
Message-ID: <20070129102814.6385ad2d@freekitty> (raw)
In-Reply-To: <20070129184707.885764375.midnight@suse.cz>
On Mon, 29 Jan 2007 18:48:06 +0100 (CET)
Jiri Benc <jbenc@suse.cz> wrote:
> The d80211 stack needs a network interface (called 'wmaster') used for
> communication with the hardware (it has 802.11 qdisc attached which perform
> MAC level QoS). This interface is not intended for users and it confuses
> them.
>
> As a short time solution, this patch allows net_device to be registered as
> "invisible". This means it is not in the dev name hash list, its ifindex is
> -1 and protocols are not notified about its registration/unregistration.
>
> Signed-off-by: Jiri Benc <jbenc@suse.cz>
>
Maybe code would be cleaner if you just could do:
register_netdevice(mydev);
cloak_netdevice(mydev);
And cloak_netdevice() just removed the network device from the
name table. I would rather keep it with a real ifindex and in the
device list, so that if the interface is miss used or the device
is referenced by other devices, we don't see unexpected surprises
like oops.
--
Stephen Hemminger <shemminger@linux-foundation.org>
next prev parent reply other threads:[~2007-01-29 18:31 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-29 17:48 [RFC PATCH 1/6] invisible network devices Jiri Benc
2007-01-29 17:48 ` [PATCH 2/6] d80211: use invisible network device for wmaster Jiri Benc
2007-01-29 17:48 ` [PATCH 3/6] d80211: drop packets from nonexisting interfaces in PS mode Jiri Benc
2007-01-29 17:48 ` [PATCH 4/6] d80211: don't display name of invisible network device Jiri Benc
2007-01-30 13:47 ` Johannes Berg
2007-01-30 14:00 ` Jan Kiszka
2007-01-31 18:58 ` Johannes Berg
2007-02-01 15:17 ` Jiri Benc
2007-02-01 15:19 ` Johannes Berg
2007-01-29 17:48 ` [PATCH 5/6] d80211: remove useless callbacks from wmaster Jiri Benc
2007-01-29 17:48 ` [PATCH 6/6] d80211: fix rtnl locking in ieee80211_register_hw Jiri Benc
2007-01-29 17:48 ` d80211: a patch for standalone d80211 tarball Jiri Benc
2007-01-29 18:34 ` Ivo Van Doorn
2007-01-29 20:23 ` Pavel Roskin
2007-01-31 18:06 ` Jiri Benc
2007-01-29 18:28 ` Stephen Hemminger [this message]
2007-01-29 22:09 ` [RFC] Alternative hidden netwirk device interface Stephen Hemminger
2007-01-30 10:09 ` Christoph Hellwig
2007-01-31 18:26 ` Jiri Benc
2007-01-31 18:40 ` Stephen Hemminger
2007-02-21 8:04 ` David Miller
2007-01-30 10:08 ` [RFC PATCH 1/6] invisible network devices Christoph Hellwig
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