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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0BAA7C433F5 for ; Mon, 31 Jan 2022 12:27:02 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4JnS443hbqz3bZT for ; Mon, 31 Jan 2022 23:27:00 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=dZZojRSx; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=bombadil.srs.infradead.org (client-ip=2607:7c80:54:e::133; helo=bombadil.infradead.org; envelope-from=batv+c8a487c16eeb054acd37+6735+infradead.org+hch@bombadil.srs.infradead.org; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=dZZojRSx; dkim-atps=neutral Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4JnS3M5yX8z2x9G for ; Mon, 31 Jan 2022 23:26:23 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; 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=hBha+4ZQjalDLD6xPvVHvMBCdVa7nDcSg1bYsYjsECY=; b=dZZojRSxt2WA3XFgSMkkhmm99W DKsfcim8XFhS7PPpIU54jNrfklMqQCQ3kh0B05DBTfmBSbUcoc+vaP6TvxOzJPczr1r0721w0pujn owwK8/bOJ6fP/eCyLRLK12xJcyFUTZbOmylV8pOnBqZsg6jzFRvX4zV2LuBZEml1UfsG5nnQl8xEu IoTxbUAkPCme+p6q+KC5jvSWxu7wp6L1eXPoGkrt+O5jmc1uPlCWK3k+SqAJzynzwnzWddqdGT7Pt lhLLnTuEGVwtibDNS6yEcRCRcd4/Lhe9ZeTHLHpWBfDe5ih1e/VgN0q4Bj4T323Ka5zqXDyRE7HWS 8DvFpD/A==; Received: from hch by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1nEVl7-009L0d-Lx; Mon, 31 Jan 2022 12:26:13 +0000 Date: Mon, 31 Jan 2022 04:26:13 -0800 From: Christoph Hellwig To: guoren@kernel.org Subject: Re: [PATCH V4 16/17] riscv: compat: Add COMPAT Kbuild skeletal support Message-ID: References: <20220129121728.1079364-1-guoren@kernel.org> <20220129121728.1079364-17-guoren@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220129121728.1079364-17-guoren@kernel.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Guo Ren , linux-mips@vger.kernel.org, sparclinux@vger.kernel.org, linux-riscv@lists.infradead.org, hch@lst.de, linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, anup@brainfault.org, x86@kernel.org, linux-csky@vger.kernel.org, hch@infradead.org, arnd@arndb.de, linux-arm-kernel@lists.infradead.org, linux-parisc@vger.kernel.org, drew@beagleboard.org, gregkh@linuxfoundation.org, wangjunqiang@iscas.ac.cn, linux-kernel@vger.kernel.org, palmer@dabbelt.com, liush@allwinnertech.com, linuxppc-dev@lists.ozlabs.org, wefu@redhat.com Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Given that most rv64 implementations can't run in rv32 mode, what is the failure mode if someone tries it with the compat mode enabled?