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From: ebiederm@xmission.com (Eric W. Biederman)
To: Ben Greear <greearb@candelatech.com>
Cc: Patrick McHardy <kaber@trash.net>,
	Stephen Hemminger <shemminger@linux-foundation.org>,
	Mark Lord <lkml@rtr.ca>,
	linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
	containers@lists.osdl.org, David Miller <davem@davemloft.net>
Subject: Re: namespace support requires network modules to say "GPL"
Date: Tue, 04 Dec 2007 10:59:05 -0700	[thread overview]
Message-ID: <m18x4axrx2.fsf@ebiederm.dsl.xmission.com> (raw)
In-Reply-To: <47544896.7070101@candelatech.com> (Ben Greear's message of "Mon, 03 Dec 2007 10:19:02 -0800")

Ben Greear <greearb@candelatech.com> writes:

>> Regardless of infringement it is incompatible with a complete network
>> namespace implementation.  Further it sounds like the module you are
>> describing defines a kernel ABI without being merged and hopes that
>> ABI will still be supportable in the future.  Honestly I think doing so
>> is horrible code maintenance policy.
>>
> I don't mind if the ABI changes, so long as I can still use something similar.

It has occurred to me that I am seeing an implication here that may in fact not
exist.

My impression of dev_get_by_xxxx is that the function is only able to be used
sanely when being part of the definition of a kernel/userspace interface.  With
the further assumption on my part that you need to define a new instance of
dev_get_by_xxxx 

It has just occurred to me that it is possible to reuse the SIOCBRADDIF
and SIOCBRDELIF for that same purpose without defining a new kernel/userspace
interface.

What and how are you using dev_get_by_xxx?

Eric

  parent reply	other threads:[~2007-12-04 18:00 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-01  9:06 [PATCH 0/10] sysfs network namespace support Eric W. Biederman
2007-12-01  9:12 ` [PATCH 01/10] sysfs: Make sysfs_mount static again Eric W. Biederman
2007-12-01  9:13   ` [PATCH 02/10] sysfs: Support for preventing unmounts Eric W. Biederman
2007-12-01  9:16     ` [PATCH 03/10] sysfs: sysfs_get_dentry add a sb parameter Eric W. Biederman
2007-12-01  9:18       ` [PATCH 04/10] sysfs: Implement __sysfs_get_dentry Eric W. Biederman
2007-12-01  9:23         ` [PATCH 05/10] sysfs: Rename Support multiple superblocks Eric W. Biederman
2007-12-01  9:25           ` [PATCH 06/10] sysfs: sysfs_chmod_file handle " Eric W. Biederman
2007-12-01  9:28             ` [PATCH 07/10] sysfs: Implement sysfs tagged directory support Eric W. Biederman
2007-12-01  9:30               ` [PATCH 08/10] sysfs: Implement sysfs_delete_link and sysfs_rename_link Eric W. Biederman
2007-12-01  9:33                 ` [PATCH 09/10] driver core: Implement tagged directory support for device classes Eric W. Biederman
2007-12-01  9:35                   ` [PATCH 10/10] net: Enable tagging for net_class directories in sysfs Eric W. Biederman
2007-12-01 13:10 ` namespace support requires network modules to say "GPL" Mark Lord
2007-12-01 13:13   ` Mark Lord
2007-12-01 19:17   ` Stephen Hemminger
2007-12-01 19:23     ` Alan Cox
2007-12-01 19:38       ` Stephen Hemminger
2007-12-01 19:45         ` Alan Cox
2007-12-01 20:13         ` Eric W. Biederman
2007-12-01 20:21           ` Mark Lord
2007-12-01 20:29             ` Arjan van de Ven
2007-12-01 22:12               ` Mark Lord
2007-12-01 23:13                 ` Eric W. Biederman
2007-12-01 23:24                   ` Jiri Slaby
2007-12-02  1:14                     ` Eric W. Biederman
2007-12-01 23:51                   ` Mark Lord
2007-12-02  1:08                     ` Eric W. Biederman
2007-12-01 20:52             ` Eric W. Biederman
2007-12-01 22:13             ` Mark Lord
2007-12-03  0:02       ` David Schwartz
2007-12-03  0:14         ` Alan Cox
2007-12-01 19:54     ` Eric W. Biederman
2007-12-02  0:30     ` Stephen Hemminger
2007-12-02  2:02       ` Eric W. Biederman
2007-12-02  3:34       ` Mark Lord
2007-12-02  4:23         ` Stephen Hemminger
2007-12-02 19:28           ` Ben Greear
2007-12-02 20:03             ` Patrick McHardy
2007-12-02 20:43               ` Adrian Bunk
2007-12-02 21:59                 ` Patrick McHardy
2007-12-03  1:14                   ` Adrian Bunk
2007-12-03  8:33                   ` Denis V. Lunev
2007-12-03 17:35               ` Eric W. Biederman
2007-12-03 18:19                 ` Ben Greear
2007-12-03 18:57                   ` Daniel Lezcano
2007-12-04 15:19                     ` Daniel Lezcano
2007-12-04 18:03                     ` Eric W. Biederman
2007-12-04 18:44                       ` Ben Greear
2007-12-04 19:17                         ` Eric W. Biederman
2007-12-04 19:35                           ` Ben Greear
2007-12-04 20:09                             ` Eric W. Biederman
2007-12-05  6:14                           ` David Miller
2007-12-05  6:01                       ` David Miller
2007-12-04 17:59                   ` Eric W. Biederman [this message]
2007-12-04 18:57                     ` Ben Greear
2007-12-04 20:01                       ` Eric W. Biederman
2007-12-05  6:07                       ` David Miller
2007-12-03  8:24         ` Romano Giannetti
2007-12-03 15:34           ` Arjan van de Ven
2007-12-03 18:03           ` Eric W. Biederman
2007-12-03 18:13             ` David Miller
2007-12-02 13:51       ` Alan Cox
2007-12-02 19:56         ` Valdis.Kletnieks
2007-12-21  3:07 ` [PATCH 0/10] sysfs network namespace support Greg KH
2007-12-21 13:04   ` Eric W. Biederman

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