From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263466AbUBDQOX (ORCPT ); Wed, 4 Feb 2004 11:14:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263486AbUBDQOX (ORCPT ); Wed, 4 Feb 2004 11:14:23 -0500 Received: from sj-iport-5.cisco.com ([171.68.10.87]:30118 "EHLO sj-iport-5.cisco.com") by vger.kernel.org with ESMTP id S263466AbUBDQOT (ORCPT ); Wed, 4 Feb 2004 11:14:19 -0500 To: Matt Mackall Cc: Matt Domsch , James Morris , linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, "David S. Miller" Subject: Re: [PATCH 2.6.1 -- take two] Add CRC32C chksums to crypto and lib routines References: <20040203175006.GA19751@chaapala-lnx2.cisco.com> <20040203185111.GA31138@waste.org> <20040203172508.B26222@lists.us.dell.com> <20040203233737.GD31138@waste.org> From: Clay Haapala Organization: Cisco Systems, Inc. SRBU Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwBAMAAAClLOS0AAAAHlBMVEXl5ufMrp3a4OLr6ujO lXzChGmsblZzRzjF1+ErFRAz+KIaAAACVElEQVR4nG3TQW/aMBQAYC9IO88dguyWUomqt0DQ do7koO22SXFQb6uE7XIMKrFya+mhPk8D43+79+wMyrp3gnx59nvxMxmNEnIWycgH+U9E55CO rkZJ8hYipbXTdfcvQK/Xy6JF2zqI+qpbjZAszSDG2oXYp0FI5mOqbAeuDtLBdeuO8fNVxkzr E9jklKEgQWsppYYf9v4IE3i/4RiVRPneQTpoXSM8QA7un3QZQ2cl54wXIH7VDwEmrdOiZBgF V5BiLwLM4B3BS0ZpB24d4IvzW+QIc7/JIcAQIadF2eeUzn3FAa6xWFYUotjIRmLB7vEvCC4t VAugpTrC2FleLBm2wVnlAc7Dl2u5L1UozgWCjTxMW+vb4GVVFhWWFSCdKmgDMhaNFoxL3bSH rc/Irn1/RcWlh+UqNgHeNwishJ1L6LCpjdmGz76RmFGyuSwLgLUxJhyUlLA7fHMpeSGVPsFA wqtK4voI8RE+I3DsDpfamSNMpIBTKrF1yIpPMA0AzQPU5gSwCTyC/aEAtX4NM6gLM3CCziBT jRR+StQ/AA8a7AMuwxn0YAmcRKnVGwDRiOcw3uMWlajgAJsAPbw4OIpwrH3/vdq9B7hpl7GD w61A4PxwSqyH9J25gePnYdqhYjjZ5s6QCb3bwvOLJWPBFvCvWVDSthYmcff44IcacOUOt1Yv yGCF1+twuQtQCPjzZIaK/Lrx9+6b7TKEdXTwgz8R+uJv5K1jOcWMnO7NJ3v/QlprnzP1deUe 8j4CpVE82MRj4j5SHGDnfvul8uGwjqNnpf4Ak4pzJDIy3lkAAAAASUVORK5CYII= Date: Wed, 04 Feb 2004 10:14:13 -0600 In-Reply-To: <20040203233737.GD31138@waste.org> (Matt Mackall's message of "Tue, 3 Feb 2004 17:37:37 -0600") Message-ID: User-Agent: Gnus/5.110001 (No Gnus v0.1) XEmacs/21.5 (celeriac, linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 3 Feb 2004, Matt Mackall said: > On Tue, Feb 03, 2004 at 05:25:08PM -0600, Matt Domsch wrote: >> > >> +MODULE_LICENSE("GPL and additional rights"); >> > > >> > > "additional rights?" >> > > >> > Take it up with Matt_Domsch@dell.com -- it's his code that I >> > cribbed, so that's the license line I used. >> >> The crc32 code came from linux@horizon.com with the following >> copyright abandonment disclaimer, which is still in lib/crc32.c: >> >> /* >> * This code is in the public domain; copyright abandoned. >> * Liability for non-performance of this code is limited to the >> * amount you paid for it. Since it is distributed for free, your >> * refund will be very very small. If it breaks, you get to keep >> * both pieces. */ >> >> Thus GPL plus additional rights is appropriate. > > Ok, makes sense for CRC32 stuff which can be easily lifted from the > kernel or 50 other places, but not for stuff that's depends on > cryptoapi. Matt is correct about crypto/crc32c.c -- that should be simply "GPL". As for the derived-from-public-domain-CRC32 stuff, should one even claim "GPL" on it? That would be, in effect, licensing public-domain code and placing restrictions on it, something only a copyright holder should be able to do, and not the intent of the author, in this case. -- Clay Haapala (chaapala@cisco.com) Cisco Systems SRBU +1 763-398-1056 6450 Wedgwood Rd, Suite 130 Maple Grove MN 55311 PGP: C89240AD The marketing flacks who thought the Super Bowl half-time show was the best way to reach 25-49-year-old males obviously surf a little too much Internet pr0n and read a bit much into the spam they receive.