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=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no 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 D729AC54FC9 for ; Tue, 21 Apr 2020 17:37:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BCFC02070B for ; Tue, 21 Apr 2020 17:37:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587490675; bh=WETR+0grQc6TiQu6SPZNPxZHQyPmrCtktdmbQpSgEXY=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=XjAPz5TNwtHCqzPM+eROHyFCXfVdn2drq5EWXSSWh7toStaPoeraPtLml6uOBgFup VX3owS0rsy+8RL84S9wUbZvbdRfSQEfOnTCM+61ZfFq/7QkbR+i6HpZiSasrAVvK7U eCWOhZfh05o55DkHu/XX97NepDIZUCg2KgBgMalU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729020AbgDURhy (ORCPT ); Tue, 21 Apr 2020 13:37:54 -0400 Received: from conssluserg-01.nifty.com ([210.131.2.80]:49485 "EHLO conssluserg-01.nifty.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725870AbgDURhy (ORCPT ); Tue, 21 Apr 2020 13:37:54 -0400 Received: from mail-vs1-f44.google.com (mail-vs1-f44.google.com [209.85.217.44]) (authenticated) by conssluserg-01.nifty.com with ESMTP id 03LHbD8u012335; Wed, 22 Apr 2020 02:37:14 +0900 DKIM-Filter: OpenDKIM Filter v2.10.3 conssluserg-01.nifty.com 03LHbD8u012335 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nifty.com; s=dec2015msa; t=1587490634; bh=onymGhbUck19AZVdqs2MMUXq8sVb6RSuA8p4Ua6walc=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=miZbySjAoZGsWn6F6etUcfv/Ib8DJrQCkBcrx4vDs/A6q9tm9SmR7wAqCo8Ea26Nu RdFiwVYL6OwNVSEP0DOcq1ruM7rqyp+oH9RhoqmKWfq7Uh+9bgAwkPuUqsOQbnxjoX O+Ac8cIDJjvPKkuGZbYSXYV/SdYPjF6pr1cPgoPGqcoYk5oOYRtkqtxOcH3xzZhShK d2YUPJLyc8dGY8baaN5DclAi2aIqbrSE75MIzcqSC08ZC1B7MnE+W0GLpLAQJoz+Gs y8KCC7F4VcMabHtzhT75V1s6rVdd2B8A69QeXO3RxCUC08AxzBXW0+T7yhTHh2mqpF SZ00t3BFi/gHg== X-Nifty-SrcIP: [209.85.217.44] Received: by mail-vs1-f44.google.com with SMTP id 1so8941407vsl.9; Tue, 21 Apr 2020 10:37:13 -0700 (PDT) X-Gm-Message-State: AGi0PubMadMVI2Tii8Ru0TMH38Vqp1iu4nkTitWPvWamBcapfegTebwC PhPTSGfQvQwiP3IA3GO4k3/4Ii29dhn1D8/thk0= X-Google-Smtp-Source: APiQypKVTO7WNsW+ml/GS/8vAZR7f48di3kb94bDCzOQtw069Fm/nYwoVlcsTcMljs4Fs7q86fNhJZH6heQm60CJ8sg= X-Received: by 2002:a67:6e07:: with SMTP id j7mr10430712vsc.181.1587490632767; Tue, 21 Apr 2020 10:37:12 -0700 (PDT) MIME-Version: 1.0 References: <20200229003731.2728-1-robh@kernel.org> <20200421100749.GA5429@pendragon.ideasonboard.com> <20200421110537.GC5983@pendragon.ideasonboard.com> <20200421134654.GD5983@pendragon.ideasonboard.com> In-Reply-To: <20200421134654.GD5983@pendragon.ideasonboard.com> From: Masahiro Yamada Date: Wed, 22 Apr 2020 02:36:36 +0900 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v2 1/2] kbuild: Always validate DT binding examples To: Laurent Pinchart Cc: Rob Herring , DTML , Linux Kernel Mailing List , Michal Marek , Linux Kbuild mailing list Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Laurent, On Tue, Apr 21, 2020 at 10:47 PM Laurent Pinchart wrote: > HOSTLD scripts/dtc/dtc > CHKDT Documentation/devicetree/bindings/arm/psci.yaml > make[2]: execvp: /bin/sh: Argument list too long > make[2]: *** [/home/laurent/src/kernel/this_is_a_long_directory_name/linux/Documentation/devicetree/bindings/Makefile:38: Documentation/devicetree/bindings/processed-schema-examples.yaml] Error 127 > make[1]: *** [/home/laurent/src/kernel/this_is_a_long_directory_name/linux/Makefile:1300: dt_binding_check] Error 2 > make[1]: Leaving directory '/home/laurent/src/kernel/this_is_a_long_directory_name/linux/output/x86' > make: *** [Makefile:180: sub-make] Error 2 > > It seems to only fail with out of tree builds (O=...). I expect that > failures will become more common the more YAML bindings we have, even > without long directory names. Indeed. This will be a common problem sooner or later. Rob already suggested a solution. Another way is to use a pipe. See the following code in scripts/Makefile.modpost # Read out modules.order instead of expanding $(modules) to pass in modpost. # Otherwise, allmodconfig would fail with "Argument list too long". quiet_cmd_modpost = MODPOST $(words $(modules)) modules cmd_modpost = sed 's/ko$$/o/' $(MODORDER) | $(MODPOST) The same issue happens for modpost because allmodconfig floods the command line. -- Best Regards Masahiro Yamada