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[209.132.180.67]) by mx.google.com with ESMTP id d21si5459788edb.180.2019.10.31.13.58.40; Thu, 31 Oct 2019 13:59:06 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=XSsGQbER; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728207AbfJaPjR (ORCPT + 99 others); Thu, 31 Oct 2019 11:39:17 -0400 Received: from mail-yw1-f68.google.com ([209.85.161.68]:38258 "EHLO mail-yw1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726739AbfJaPjR (ORCPT ); Thu, 31 Oct 2019 11:39:17 -0400 Received: by mail-yw1-f68.google.com with SMTP id s6so2270086ywe.5 for ; Thu, 31 Oct 2019 08:39:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=TDNNf3dZzdejekmw1xBvnSNBpR6LjmT25tUuR/dKBac=; b=XSsGQbERj7XWfLg0CXg722U7VWuezLjYGTs2K7pzt8rO8QzLcMqOZ4f9zW4TWMrInW I6WVUc3XDdTWOZAXVBWXRkcnp4jkVdbA7nGkpxYFewMzVI/8Ix9NVTEchD0/HJuphGCU pMYYwUVFvs/0BDZxQQkfeAe49F8hMF/WP3PQzjKYypF3e3Sd6y189lrA0T0S5DPmpxKj eANRKdXsbAaIo1RjwxTIJdAlGnDsxapxjlCC5gGc9tzy5zjqIM1N37A7YQw3MEYtIIP/ p2X1Q1Hrr1J4/QqexOAP/1yNnzfUVnVcqf5HE3H+WpaL4pGbHGKxbF4OV/lDWa5sFbfS Es7A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=TDNNf3dZzdejekmw1xBvnSNBpR6LjmT25tUuR/dKBac=; b=d10enZPgwtxZzvgYEcqjeWs3mXg/kjZcAOyTNImMmAkKKFerf2saFXEmsi0+KQEkxj jhRIWu53psCMKtpeGR7FPI1UO1EXAZQxMfrD2Q2pfXXZAhwnHaA/Y5ZNRi4stKMLeTsh RF8vwRFc4pAyxCOEEmwJ+gj7TkNRNP4NDxHjN+1MUuRZooEdRP+B9BLl5N9/wXo4OJx/ few1v7WwsscMZsVH4ULKuqPNb30/LiXqnjtwucbZMQco3w3SgWZ76Lx/BC9/4AKSoeo0 +PFxFepFfCdNUgLW2dw4vObdlfz7R5/wmiJO4aQv+igNRLvbkNSW6ALwD4Mz0NYBO/6Y /KmA== X-Gm-Message-State: APjAAAXY5CZJy/I/ZLO26xxidggtyeKUuNfg1hqjqdD2o123iAvQbANu mswDFxNZvk918MxWHgv3FDhfK5sY1P3QsUrhAJM= X-Received: by 2002:a81:6d56:: with SMTP id i83mr4367544ywc.138.1572536356094; Thu, 31 Oct 2019 08:39:16 -0700 (PDT) MIME-Version: 1.0 References: <20191031050338.12700-1-csm10495@gmail.com> <20191031133921.GA4763@lst.de> <20191031135904.GA5180@lst.de> In-Reply-To: <20191031135904.GA5180@lst.de> From: Charles Machalow Date: Thu, 31 Oct 2019 08:39:05 -0700 Message-ID: Subject: Re: [PATCH] nvme: change nvme_passthru_cmd64's result field. To: Christoph Hellwig Cc: linux-nvme@lists.infradead.org, marta.rybczynska@kalray.eu, Keith Busch , Jens Axboe , Sagi Grimberg , linux-kernel@vger.kernel.org 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 On Thu, Oct 31, 2019 at 6:59 AM Christoph Hellwig wrote: > You might like the idea, but it fundamentally is a bad idea. For example > you completely break architectures that do not support unaligned loads > and stores. Would you also be against the idea of memcpy the u32 array into a u64 then passing a pointer to that local variable lower? - Charlie Scott Machalow