From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E9480EB64DA for ; Mon, 19 Jun 2023 14:43:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231978AbjFSOn1 (ORCPT ); Mon, 19 Jun 2023 10:43:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42104 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231910AbjFSOnX (ORCPT ); Mon, 19 Jun 2023 10:43:23 -0400 Received: from mail-lf1-x133.google.com (mail-lf1-x133.google.com [IPv6:2a00:1450:4864:20::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2898592 for ; Mon, 19 Jun 2023 07:43:21 -0700 (PDT) Received: by mail-lf1-x133.google.com with SMTP id 2adb3069b0e04-4f8777caaa1so186551e87.3 for ; Mon, 19 Jun 2023 07:43:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=resnulli-us.20221208.gappssmtp.com; s=20221208; t=1687185799; x=1689777799; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=jg4ozZVfolPqyn/t5WEFg1Uls/OOAkHpHShj9UmDbj0=; b=XM/YRcXn05iISSP7KE+IKbXpoTRTcJ718yU5TO6gcp/oHw+hYoh0ZSL4WhK5bcd+jf 6mAAKvJM6L/16KW2cU/etYW1s4n/kP+ZnqPLRw8j4gkGd0gBhg1EckAqltFK62g5BFYv F4qZ8WHPYxeuBDUf/227tO1lNgF62oIqWUhWUrhBf9LFkoyFtowqLyVpxk38pWpTioks T7z7sbBXhgtHTmX23pNuwBDYalbF+BQqJh5pyC+/pn403N4z5DFsbO0q8GwU0+Gh0Tmo BacDMSvWblkXQmOTRpcEQLKJNp4qvOSKcG6e6P5B9YRsKldgvakXMH2eSJMQySdw+iGm LCgg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687185799; x=1689777799; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=jg4ozZVfolPqyn/t5WEFg1Uls/OOAkHpHShj9UmDbj0=; b=AcuTjVm0VYafuZ2dQ0zxztr4fmPUIqlESXvWgqhbJ3R55vuOplmtpIoPVFuWS6opgI jztSbm9MQEF8jnECSNz6appGeHpToXXyt/gzaQhHFzPEL3tz5SmMv2qpOzhnm1UZjjg1 4MJOR4fZyfRpX/ebmhJc7NMbNYcxNhIKkDKUnuluizL02BdNX9JI3ZVNaCKM5URVW0eG Dgcdun42aDqRVpbY1TcuvWV+PysnoIPnyHTxFnE0TD4FgMONWAZ+11Z3oyR7u8XXB1Ig +JyvBFtCYY35lWuM2Rf63jv91nGftPyBiZ5WIGmuUKAklKikSN/uv5IVHhH/ylZK0nOn fVIA== X-Gm-Message-State: AC+VfDy4BoNTO0EZReA15+p925/0b/MevjcfJJE1Egj+Kl2ALwyBdB3A j8M1ReL/FuSFkYQ1zLLsHEJX9g== X-Google-Smtp-Source: ACHHUZ6jK/vkslU8B7BumS0VEdj9EzsfjsiTwLT42WV7OsJvLgsBm6xMwCmMKVvxkyum5HDdV4pj/Q== X-Received: by 2002:a19:da01:0:b0:4f8:3b15:b878 with SMTP id r1-20020a19da01000000b004f83b15b878mr4868043lfg.67.1687185799177; Mon, 19 Jun 2023 07:43:19 -0700 (PDT) Received: from localhost (host-213-179-129-39.customer.m-online.net. [213.179.129.39]) by smtp.gmail.com with ESMTPSA id k6-20020adfd846000000b003111025ec67sm13972121wrl.25.2023.06.19.07.43.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Jun 2023 07:43:18 -0700 (PDT) Date: Mon, 19 Jun 2023 16:43:17 +0200 From: Jiri Pirko To: Christophe JAILLET Cc: Paul Moore , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, netdev@vger.kernel.org, linux-security-module@vger.kernel.org Subject: Re: [PATCH net-next] netlabel: Reorder fields in 'struct netlbl_domaddr6_map' Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Sun, Jun 18, 2023 at 12:16:41PM CEST, christophe.jaillet@wanadoo.fr wrote: >Group some variables based on their sizes to reduce hole and avoid padding. >On x86_64, this shrinks the size of 'struct netlbl_domaddr6_map' >from 72 to 64 bytes. > >It saves a few bytes of memory and is more cache-line friendly. > >Signed-off-by: Christophe JAILLET Reviewed-by: Jiri Pirko