From nobody Wed Dec 17 19:40:58 2025 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 99CB3C41513 for ; Thu, 17 Aug 2023 18:24:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1354381AbjHQSXo (ORCPT ); Thu, 17 Aug 2023 14:23:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46828 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1354423AbjHQSXY (ORCPT ); Thu, 17 Aug 2023 14:23:24 -0400 Received: from mail-yw1-x1149.google.com (mail-yw1-x1149.google.com [IPv6:2607:f8b0:4864:20::1149]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6D5A73ABB for ; Thu, 17 Aug 2023 11:22:54 -0700 (PDT) Received: by mail-yw1-x1149.google.com with SMTP id 00721157ae682-58ee4df08fbso1360497b3.3 for ; Thu, 17 Aug 2023 11:22:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1692296501; x=1692901301; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=BIQTGF+g2uioZsuYxh2OZLeccAuWFaEAAqhYyJhrMno=; b=dwgSvvfqT9h8cnS2ANlfzc/bgIB0QsDd8CDnK3UIm0ECJPG5JtjbaBFo+m/YimJjK1 FlcF7DYGVOnxlmxsuZmwGYkLyzXE/+YXllLknn+tZ0URfSeZ5ZQm2ooYJMUDaCgm9HD3 EMRZmApldwJieHbJYGroUPtE8c2Vj1YgXUDFNmuw6MbqODyN/lDCN2SE2s0i09cVaycM IwOY8mSDO8eTap09s5EpC3UjfSkki/wTO7MZecQEtHfYnAOIxSA33Hg4SfFIAFGar366 ucYHtFxnE0S6mZ5Oye/3L5iPNtWCHGNxHVp6H5k1FOv9CqWStIWrJaHE35yH0GApsM9x ZyDw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692296501; x=1692901301; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=BIQTGF+g2uioZsuYxh2OZLeccAuWFaEAAqhYyJhrMno=; b=XFwI2ysUZMSt9O/d4x7sCD3ii7wfXtGe14tFWQbYgPj+4vo5GDzz6Qj6rVmkdu+IfQ UrEi4p7kS48GksHnZRbnYHLivnOCaZENXo4HnW1WsdCZhyBGdsiFULGbnByPC/V4wfiv UAJWrcFEVBuXYyp5asrosrVP8Y5gVnjvD2V8HFil6aQcIyFTfXZ5QPqc8GmCjbxQXaTE YGOVmTm07Q0Xnh8UmCwj9C4lI4DWoN3TtimKkwNrCnnUVdE2kpaQLKYE3RnYyZ6qvXr8 hyZPPybb9F1EF5sjL8AEEf9ckg8c0XHsQ1UZxDb3c5rBe0GZEtm9TkzztDPdV4aqafWV 7sAw== X-Gm-Message-State: AOJu0YzYYa2THVQHiVIZAaAEpSNYRAp5CIGx68w/okI3tL3Yw9+BINEF iKoDywwOyyKyO7hNUzbXQuHRQ6Mt02D0 X-Google-Smtp-Source: AGHT+IGki4STCy0HIY6Al3kylQ4EKIZ5nbsBXL4XMwGt8Fl0igDhFp/d8IMaNrxqUESLF7rmYoeQWgvp+7e3 X-Received: from mshavit.ntc.corp.google.com ([2401:fa00:95:20c:4a77:fd20:7069:bdf9]) (user=mshavit job=sendgmr) by 2002:a25:ab8c:0:b0:d45:daf4:1fc5 with SMTP id v12-20020a25ab8c000000b00d45daf41fc5mr4372ybi.3.1692296500636; Thu, 17 Aug 2023 11:21:40 -0700 (PDT) Date: Fri, 18 Aug 2023 02:16:29 +0800 In-Reply-To: <20230817182055.1770180-1-mshavit@google.com> Mime-Version: 1.0 References: <20230817182055.1770180-1-mshavit@google.com> X-Mailer: git-send-email 2.42.0.rc1.204.g551eb34607-goog Message-ID: <20230818021629.RFC.v1.7.I65dd382de382428dcb33333342b35405903ac768@changeid> Subject: [RFC PATCH v1 7/8] iommu/arm-smmu-v3: check for domain initialization using pgtbl_ops From: Michael Shavit To: iommu@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: will@kernel.org, jgg@nvidia.com, nicolinc@nvidia.com, tina.zhang@intel.com, jean-philippe@linaro.org, robin.murphy@arm.com, Michael Shavit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" In order to remove smmu_domain->smmu in the next commit Signed-off-by: Michael Shavit --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/ar= m/arm-smmu-v3/arm-smmu-v3.c index 7f88b2b19cbe5..c9f89f4f47721 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -2918,7 +2918,7 @@ static int arm_smmu_enable_nesting(struct iommu_domai= n *domain) int ret =3D 0; =20 mutex_lock(&smmu_domain->init_mutex); - if (smmu_domain->smmu) + if (smmu_domain->pgtbl_ops) ret =3D -EPERM; else smmu_domain->stage =3D ARM_SMMU_DOMAIN_NESTED; --=20 2.42.0.rc1.204.g551eb34607-goog