From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from s3.sipsolutions.net ([5.9.151.49]:33526 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751637AbdIVGAf (ORCPT ); Fri, 22 Sep 2017 02:00:35 -0400 Message-ID: <1506060029.2048.9.camel@sipsolutions.net> (sfid-20170922_080117_980616_62905319) Subject: Re: [PATCH] wireless: iwlegacy: make const array static to shink object code size Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: Johannes Berg To: Colin King , Stanislaw Gruszka , Kalle Valo , linux-wireless@vger.kernel.org, netdev@vger.kernel.org Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Date: Fri, 22 Sep 2017 08:00:29 +0200 In-Reply-To: <20170921225630.21916-1-colin.king@canonical.com> (sfid-20170922_005652_800251_1E085F58) References: <20170921225630.21916-1-colin.king@canonical.com> (sfid-20170922_005652_800251_1E085F58) Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Thu, 2017-09-21 at 23:56 +0100, Colin King wrote: > From: Colin Ian King > > Don't populate const array ac_to_fifo on the stack in an inlined > function, instead make it static.  Makes the object code smaller > by over 800 bytes: > >    text    data     bss     dec     hex > filename >  159029   33154    1216  193399   2f377 > 4965-mac.o > >    text    data     bss     dec     hex > filename >  158122   33250    1216  192588   2f04c > 4965-mac.o > > (gcc version 7.2.0 x86_64) I'm curious - how did you find this? johannes