[lkml]   [2004]   [Nov]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [openib-general] Re: [PATCH][RFC/v1][4/12] Add InfiniBand SA (Subnet Administration) query support
On Tue, 23 Nov 2004, Greg KH wrote:

> On Tue, Nov 23, 2004 at 09:52:46AM -0800, Johannes Erdfelt wrote:
>> On Mon, Nov 22, 2004, Greg KH <> wrote:
>>> To be straightforward, either drop the RCU code completely, or change
>>> the license of your code.
>> Or compile against non-GPL RCU code, right?
> No. RCU is covered by a patent that only allows for it to be
> implemented in GPL licensed code. If you want to use RCU in non-GPL
> code, you need to sign a license agreement with the holder of the RCU
> patent.
> This was all covered a few years ago when the RCU code first went into
> the kernel tree. See the lkml archives for details.
> So the very usage of RCU in the code is the issue here, not the fact
> that it is being linked against a GPL licensed header file.
> This isn't a GPL interpretation here, but a patent license agreement
> issue. Sorry for not being clearer the first time around, I thought
> everyone was aware of this issue by now.
> thanks,

Not! RCU was implemented by MIT in 1975 under a grant from NASA.
A subsequent patent by Sequent is likely invalid because of prior
art. Further, IBM purchased Sequent, not SCO.

Remember, regardless of how many times a lie is repeated, it
never becomes true.

Dick Johnson
Penguin : Linux version 2.6.9 on an i686 machine (5537.79 BogoMips).
Notice : All mail here is now cached for review by John Ashcroft.
98.36% of all statistics are fiction.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 14:08    [W:0.082 / U:1.480 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site