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 X-Spam-Level: X-Spam-Status: No, score=-17.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 15033C433E1 for ; Wed, 24 Mar 2021 16:47:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E179D61A25 for ; Wed, 24 Mar 2021 16:47:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237033AbhCXQrJ (ORCPT ); Wed, 24 Mar 2021 12:47:09 -0400 Received: from mail.kernel.org ([198.145.29.99]:42736 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236580AbhCXQqi (ORCPT ); Wed, 24 Mar 2021 12:46:38 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id AF00461A06; Wed, 24 Mar 2021 16:46:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1616604397; bh=TJLFQhZC1jWNLtoUFrsnvOFF9CPnFj5MhXj3QGGfWbY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=tAusyE0oX598MDBWGwhjFz6BcqpxV6JGn/vcKpGwhQ23eCnDdavKKK1Y0fMbT6QCg 7GxRdL4adPvyiPtYugdxxzOjn/UZFeV5Ke/UravJ72HKyx+fRUQsL5MFDw6ZRt7v7/ hr5IKVXyLprWjsRMrKMfO3Bj1Qhg75nVp/1Dyo4n60XxEpsQQOS2lbUkZMPex6meFZ gwMjkkWp37emMTq0EeSIgBdX5RdUjzuejLmOL2M4fBb1s/yt2FlyLZ+MRhDhdwAGeM KfzA85z11j0pt8mkuLlEuBlXMD46oMoFXv/Es/1qh0jN2glKavYWHtr+mSm4cZJnLE QcTnky6aXuv/g== Date: Wed, 24 Mar 2021 16:46:32 +0000 From: Will Deacon To: Masahiro Yamada Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Nathan Chancellor , Catalin Marinas Subject: Re: [PATCH] arm64: move --fix-cortex-a53-843419 linker test to Kconfig Message-ID: <20210324164631.GA13030@willie-the-truck> References: <20210324071128.1723273-1-masahiroy@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210324071128.1723273-1-masahiroy@kernel.org> User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Mar 24, 2021 at 04:11:28PM +0900, Masahiro Yamada wrote: > $(call ld-option, --fix-cortex-a53-843419) in arch/arm64/Makefile is > evaluated every time even for Make targets that do not need the linker, > such as "make ARCH=arm64 install". > > Recently, the Kbuild tree queued up a patch to avoid needless > compiler/linker flag evaluation. I beleive it is a good improvement > itself, but causing a false-positive warning for arm64 installation > in linux-next. (Thanks to Nathan for the report) > > Kconfig can test the linker capability just once, and store it in the > .config file. The build and installation steps that follow do not need > to test the liniker over again. > > Reported-by: Nathan Chancellor > Signed-off-by: Masahiro Yamada > --- > > I was not sure what the preferred CONFIG option name is. > Please suggest a one if you have a better idea. > > > arch/arm64/Kconfig | 3 +++ > arch/arm64/Makefile | 2 +- > 2 files changed, 4 insertions(+), 1 deletion(-) Acked-by: Will Deacon Will