From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH] net: make struct net_device::min_header_len 8-bit Date: Wed, 12 Apr 2017 13:59:40 -0400 (EDT) Message-ID: <20170412.135940.1431947186410769270.davem@davemloft.net> References: <20170410082526.GC24514@avx2> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: adobriyan@gmail.com Return-path: Received: from shards.monkeyblade.net ([184.105.139.130]:48670 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754614AbdDLR7m (ORCPT ); Wed, 12 Apr 2017 13:59:42 -0400 In-Reply-To: <20170410082526.GC24514@avx2> Sender: netdev-owner@vger.kernel.org List-ID: From: Alexey Dobriyan Date: Mon, 10 Apr 2017 11:25:26 +0300 > This field is never big enough to warrant 16-bitness. > > 8-bit accesses enjoy shorted encoding on i386/x86_64 than 16-bit > accesses: > > add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-10 (-10) > function old new delta > loopback_setup 169 164 -5 > ether_setup 148 143 -5 > > Signed-off-by: Alexey Dobriyan Applied.