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[2620:137:e000::1:20]) by mx.google.com with ESMTP id cs9-20020a170906dc8900b006f3ae2148f1si4255ejc.470.2022.05.16.09.33.14; Mon, 16 May 2022 09:33:41 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=desiato.20200630 header.b=KA+gQelw; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241428AbiEPICo (ORCPT + 99 others); Mon, 16 May 2022 04:02:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55478 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241425AbiEPICm (ORCPT ); Mon, 16 May 2022 04:02:42 -0400 Received: from desiato.infradead.org (desiato.infradead.org [IPv6:2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 443202CDCA for ; Mon, 16 May 2022 01:02:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=40WKtHNpgYvlQ581J3rT1HA6i63DjPIBf8CHscK5pRw=; b=KA+gQelwKoYZBp/f8IKa+Ifrsi eHZp1FcdWAGxgxVHfKWUP1BGicYgkN/pP/mrv8A5FriPPBzkvvO1cTFrFwQfD0rjdGyIB93VB1Qzq H/GqQX50A1F2ZK+C+CyHpL5ly1VYCBAHQycEOmZIbnbpWBZAyOY9N8NNyb40c3oVwgm1RKkAjT9bS e1sC6r37zLzMvsTkTPH7nc1w66rI4U9TbEBsID+2rBgH2xs0+d2MdVDefBkN2yCXQNUOQfdUp6r6u 8jTgjF8QoyVzFfjx2AGJ0nMmSb8AndPX9Y2RQYROczLylvxn6QwLaa1X7QvNP6SQRKtmv6qK93V5l pFBTouxw==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1nqVgP-000u0c-LL; Mon, 16 May 2022 08:02:25 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 4FE73300230; Mon, 16 May 2022 10:02:23 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 387E6202674C1; Mon, 16 May 2022 10:02:23 +0200 (CEST) Date: Mon, 16 May 2022 10:02:23 +0200 From: Peter Zijlstra To: Masahiro Yamada Cc: Vincent Mailhol , Michal Marek , Nick Desaulniers , Linux Kernel Mailing List , Arnd Bergmann , Andy Shevchenko , Rikard Falkeborn , Andrew Morton , Kees Cook , Will Deacon Subject: Re: [RFC PATCH v2 2/2] kbuild: call check-atomics.sh only if prerequisites change Message-ID: References: <20220426155229.436681-1-mailhol.vincent@wanadoo.fr> <20220507131146.834810-1-mailhol.vincent@wanadoo.fr> <20220507131146.834810-3-mailhol.vincent@wanadoo.fr> <20220514131448.GL76023@worktop.programming.kicks-ass.net> <20220514145551.GC100765@worktop.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, May 15, 2022 at 01:26:23AM +0900, Masahiro Yamada wrote: > BTW, gen-atomics.sh takes more than 1 sec. > Do you think gen-atomics.sh can be much faster > if it is rewritten by Python or Perl? > Then, we can drop 5000 lines from the git repository. I don't speak either; which would make it unsuitable for purpose.