From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH V3] lib/vsprintf.c: Add %pMF to format FDDI bit reversed MAC addresses Date: Thu, 07 Jan 2010 16:58:35 -0800 (PST) Message-ID: <20100107.165835.10951349.davem@davemloft.net> References: <1262888625.10429.23.camel@Joe-Laptop.home> <1262900630.10429.80.camel@Joe-Laptop.home> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: mirqus@gmail.com, hartleys@visionengravers.com, macro@linux-mips.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org To: joe@perches.com Return-path: In-Reply-To: <1262900630.10429.80.camel@Joe-Laptop.home> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Joe Perches Date: Thu, 07 Jan 2010 13:43:50 -0800 > On Mon, 2010-01-04 at 23:43 +0000, Maciej W. Rozycki wrote: >> The example below shows an address, and the sequence of bits or symbols >> that would be transmitted when the address is used in the Source Address >> or Destination Address fields on the MAC header. The transmission line >> shows the address bits in the order transmitted, from left to right. For >> IEEE 802 LANs these correspond to actual bits on the medium. The FDDI >> symbols line shows how the FDDI PHY sends the address bits as encoded >> symbols. >> >> MSB: 35:7B:12:00:00:01 >> Canonical: AC-DE-48-00-00-80 >> Transmission: 00110101 01111011 00010010 00000000 00000000 00000001 >> FDDI Symbols: 35 7B 12 00 00 01" >> >> Please note that this address has its group bit clear. >> >> This notation is also defined in the "FDDI MEDIA ACCESS CONTROL-2 >> (MAC-2)" (X3T9/92-120) document although that book does not have a need >> to use the MSB form and it's skipped. > > Adds 6 bytes to object size for x86 > > New: > $ size lib/vsprintf.o > text data bss dec hex filename > 8664 0 2 8666 21da lib/vsprintf.o > $ size lib/vsprintf.o > text data bss dec hex filename > 8658 0 2 8660 21d4 lib/vsprintf.o > > Signed-off-by: Joe Perches Applied.