From patchwork Tue Dec 6 16:59:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thierry Reding X-Patchwork-Id: 631806 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 34FA0C4708C for ; Tue, 6 Dec 2022 16:59:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234309AbiLFQ7y (ORCPT ); Tue, 6 Dec 2022 11:59:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39756 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231869AbiLFQ7w (ORCPT ); Tue, 6 Dec 2022 11:59:52 -0500 Received: from mail-ej1-x62b.google.com (mail-ej1-x62b.google.com [IPv6:2a00:1450:4864:20::62b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5336F28E10; Tue, 6 Dec 2022 08:59:51 -0800 (PST) Received: by mail-ej1-x62b.google.com with SMTP id x22so7665394ejs.11; Tue, 06 Dec 2022 08:59:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=e14vmcIMdCGeDCCsvjNA18WeSIg6j6mtLwuur7IIU+k=; b=DasL6y4z17a3uCFNx/cpZaEtMZGDNHEyM17c4YaJ1ardVx4EFQl7yvG6zHcy7yj99w 5EaWyeDNAMzT9ODA06f75MsG1tj4rNaPk6hZsbcBd4WVvlEi/5nT+UPUEw2sEP7BMNrE qpvLhLLfk31orZWq2rSDPDMq0AQ6Z5PWdbVzMzj+J8o04wDhqRyFyHSOl0bYv/0uLI4I 0i1KVGGsjIm1W8OXlgoDmK/ZwBdoCylj9p8JNlNojX5JTmTiuNXVMO5yhdlf7kRMslQH 5pPAj8zYlXyNyNIACxF+QvssYTqX97TR0oz+3LyBnRRO+rqqB1AUyPwgA1eY+PJdg4pA 8Bug== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=e14vmcIMdCGeDCCsvjNA18WeSIg6j6mtLwuur7IIU+k=; b=VwZ7QjAPKtl5M5tkJMtVcoN1fIZMadTgWDJ0afYhEeyTNTQk+RMKGoAvUdHZ0GFYUf kqqU1nEpWckw6UZIb03dyZ7C6QFROgUCi7kmYag9WlZVLYumeWoMA8Qe2o3Cxa4vdw6z 4vpDypiTk8CY0/WKdVE1Txsu9Lj3s5YY3L+UR2uZMx3OrP2ZHUBQEGdpc9Xkm9OsgSBg a6IgKGYkEjLalX/UApLXm4slgoor1slEuGME9pP3zuIueLMRVGCLD+QIsM8OyPp1g3kF //ytcXLFQzG6OBSD4SeX+rOEimexgVzr9djvNJAa7FjG7OW6jfOxdTVw+u7TqeaE7hFW Xg0w== X-Gm-Message-State: ANoB5pnYzRksKT7bFIXq7QMdG4IC/tUiQxEboHrvks78hNNJqzjo6wWV uDU7lnzGKtbvQXIzQ0lCWBc= X-Google-Smtp-Source: AA0mqf6wKnK8iPkkvl/9lYVOalcWQ2P+mF4+su10vJeBJqLrURueKFlLqp6gapxn8M1H0kpE6fmixA== X-Received: by 2002:a17:907:c242:b0:7c0:b44d:92b2 with SMTP id tj2-20020a170907c24200b007c0b44d92b2mr19536028ejc.754.1670345989874; Tue, 06 Dec 2022 08:59:49 -0800 (PST) Received: from localhost (p200300e41f201d00f22f74fffe1f3a53.dip0.t-ipconnect.de. [2003:e4:1f20:1d00:f22f:74ff:fe1f:3a53]) by smtp.gmail.com with ESMTPSA id 7-20020a170906300700b007812ba2a360sm7621230ejz.149.2022.12.06.08.59.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 06 Dec 2022 08:59:49 -0800 (PST) From: Thierry Reding To: Joerg Roedel , Ulf Hansson Cc: Robin Murphy , Adrian Hunter , Jonathan Hunter , Prathamesh Shete , Will Deacon , iommu@lists.linux-foundation.org, linux-mmc@vger.kernel.org, linux-tegra@vger.kernel.org, Joerg Roedel Subject: [PATCH v13 1/6] iommu: Add note about struct iommu_fwspec usage Date: Tue, 6 Dec 2022 17:59:40 +0100 Message-Id: <20221206165945.3551774-2-thierry.reding@gmail.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221206165945.3551774-1-thierry.reding@gmail.com> References: <20221206165945.3551774-1-thierry.reding@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org From: Thierry Reding This structure is to be considered private to the IOMMU API. Except for very few exceptions, IOMMU consumer drivers should treat this as opaque data. Acked-by: Joerg Roedel Signed-off-by: Thierry Reding --- include/linux/iommu.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 1690c334e516..dc5e6f5c14fc 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -641,6 +641,10 @@ struct iommu_group *fsl_mc_device_group(struct device *dev); * @flags: IOMMU_FWSPEC_* flags * @num_ids: number of associated device IDs * @ids: IDs which this device may present to the IOMMU + * + * Note that the IDs (and any other information, really) stored in this structure should be + * considered private to the IOMMU device driver and are not to be used directly by IOMMU + * consumers. */ struct iommu_fwspec { const struct iommu_ops *ops;