Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754292AbbLJPHY (ORCPT ); Thu, 10 Dec 2015 10:07:24 -0500 Received: from mga03.intel.com ([134.134.136.65]:59799 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753816AbbLJPGl (ORCPT ); Thu, 10 Dec 2015 10:06:41 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,408,1444719600"; d="scan'208";a="10970710" Date: Thu, 10 Dec 2015 15:06:09 +0000 From: Keith Busch To: Joe Perches Cc: linux-nvme@lists.infradead.org, LKML , Matthew Wilcox , Greg Kroah-Hartman , Jens Axboe , Christoph Hellwig , Dan Williams Subject: Re: [PATCHv3] printf: Add format for 8-byte EUI-64 type Message-ID: <20151210150609.GA23337@localhost.localdomain> References: <1449702413-25598-1-git-send-email-keith.busch@intel.com> <1449703300.25389.95.camel@perches.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1449703300.25389.95.camel@perches.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1211 Lines: 27 On Wed, Dec 09, 2015 at 03:21:40PM -0800, Joe Perches wrote: > On Wed, 2015-12-09 at 16:06 -0700, Keith Busch wrote: > > MAC addresses may be formed using rules based on EUI-64, which is 2 bytes > > longer than a typical 6-byte MAC. This patch adds a long specifier to > > the %pM format to support the extended unique identifier. > > > > Since there are multiple valid possible permutations of format specifiers, > > the decoding is done in a loop, and the default ':' separator is > > initialized at declaration time. A side effect of this allows 'F' and > > 'R' both be specified, so these are appended to the documentation. > > Just thought of this: > > An alternative is using a format of "%8phC" > > Is there a use case for a bluetooth or FDDI EUI-64? *facepalm* I didn't know that format, but it satisfies my needs. I am not aware of bluetooth or fddi using eui64, so I've no problem withdrawing the patch. I'll just fix up the one that depended on it. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/