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 6ADB5C77B73 for ; Sun, 21 May 2023 23:36:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229571AbjEUXgF (ORCPT ); Sun, 21 May 2023 19:36:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55768 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229481AbjEUXgE (ORCPT ); Sun, 21 May 2023 19:36:04 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B6F7CB3; Sun, 21 May 2023 16:36:03 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 4A69160DDC; Sun, 21 May 2023 23:36:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 75DEAC433D2; Sun, 21 May 2023 23:36:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1684712162; bh=6nUdXTj1YWB3dC08Dz7To7PYeNpaxsKM7k8BJ+xBhyw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=SS9u1hEromXAd86hzV3s7TFV5ceqSjrEPOnTaHEWmariNPw+WwZhRJkaE27qbhdyn xisjpj2zHV1Ulx+SePxbiKlaoqXinaXwg3fLwprg95aLmBRZ8ndW6CifvRP7I5pOYe LLNHfKMJUQDCytS9qpT8hzST1l57VIwxd/AZEqHeeqPkqO/aBv6oCDVnn9ga3/QqLb fubaH1sZpCp+cL65sSsA23ZFScQfXCpGY1hdeREsuLdFzoOYGKc9oVvq0N8IOvyBjh jl52AsY7Ruh5yoiVNxspk7QOhwCFyDo5i3xm180zBPE2zEUS58aPxtc+heGl56lCZy l9Wfxfk3/xFwA== Date: Sun, 21 May 2023 19:36:01 -0400 From: Sasha Levin To: Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= Cc: stable@vger.kernel.org, stable-commits@vger.kernel.org, Will Deacon , Robin Murphy , Joerg Roedel Subject: Re: Patch "iommu/arm-smmu: Drop if with an always false condition" has been added to the 6.3-stable tree Message-ID: References: <20230520014938.2798196-1-sashal@kernel.org> <20230520144018.h6qqwvnsldawu4kx@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20230520144018.h6qqwvnsldawu4kx@pengutronix.de> Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Sat, May 20, 2023 at 04:40:18PM +0200, Uwe Kleine-König wrote: >Hello, > >On Fri, May 19, 2023 at 09:49:37PM -0400, Sasha Levin wrote: >> This is a note to let you know that I've just added the patch titled >> >> iommu/arm-smmu: Drop if with an always false condition >> >> to the 6.3-stable tree which can be found at: >> http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary >> >> The filename of the patch is: >> iommu-arm-smmu-drop-if-with-an-always-false-conditio.patch >> and it can be found in the queue-6.3 subdirectory. >> >> If you, or anyone else, feels it should not be added to the stable tree, >> please let know about it. > >I'd not add that patch to stable. It's just about dropping an > > if (false) { > something(); > } > >The compiler probably isn't able to see that the condition is always >false, so the only benefit is that the patch makes the compiled code a >bit smaller. Dropped, thanks! -- Thanks, Sasha