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=-6.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 F26F6C4727F for ; Tue, 29 Sep 2020 00:04:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AEEE921775 for ; Tue, 29 Sep 2020 00:04:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="KN7aVqVR" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727056AbgI2AEr (ORCPT ); Mon, 28 Sep 2020 20:04:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44458 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726421AbgI2AEq (ORCPT ); Mon, 28 Sep 2020 20:04:46 -0400 Received: from mail-pl1-x642.google.com (mail-pl1-x642.google.com [IPv6:2607:f8b0:4864:20::642]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A6560C0613D3; Mon, 28 Sep 2020 17:04:46 -0700 (PDT) Received: by mail-pl1-x642.google.com with SMTP id s19so3035plp.3; Mon, 28 Sep 2020 17:04:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=2F2+5D5YYyNtX412eaEEkRAVLuYFhL798dSPFQt/UiI=; b=KN7aVqVR2irl+UwyQ/zwfgh5MAtJqeXE2N50vSO/iqptVA7aYfjoFof5Ns9kuNbscY rzp0TsTPcIGTWZIA+i+EPEwRQfgP24eHdkOBtltnAgOw/CEjGTNCZZw1h1+h+22JBRv0 P2uWeCDjzsbVnf5pafKMnnSGrrJ7Uw5g9LZkqAjAkc2mOpMTfUuJLLtYDnSGGXiRHStS 7HV53RqU5CE7dw7qzLUpmyzHotpwRVwcT3V4hniOJHD72f2kJw4XrhOAzq4CleSxXHZU LICALTYjQJzbtI42zVkbs9SaeBBWVC36agePjxCRhiz1zQduauhwV2UZVRArEaCDJgYb hebg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=2F2+5D5YYyNtX412eaEEkRAVLuYFhL798dSPFQt/UiI=; b=maRNy/gPHYHpngy9faVEdATZuhiVJkEumAv+t7May7qYl+TB+gJEhc53wHpmFKVlXU paBhggvVI3lt5MrbvdymWnVhViDZQLjTxqEwQ7TQwGazRJ4CT/wvNtl1Ssv/FNmE93Ul 2L81lWG4fI+7Y9yXjh+FCGYpPmGJ6dU6+4u69/ORgN343lGPI9VRnc586nWlHNKZjzdV MZKfi+jvZi9jRVBe+K7khOAsIjjY1maB9Q5+u7EXZGmqv2kmoCTA8HKhUZ/xvxr+77hl BcBESpzMT9CkRBH/vX+aMmbWU17wecGTnk3a+gxiu4vpXw/ejuGx5PSM5JTYpvdgdwUk +iEg== X-Gm-Message-State: AOAM531FOVCT26t1j2qT9QRHdWHN4lx2mq5h09aigkhvwbCFAgV33RGX g4/f4ck9jo4vrqUqrZUx+f4= X-Google-Smtp-Source: ABdhPJwgFda4M/Fy6oERQj0m1JqZSIWvhaK/zpKP1yJw7KCeqXlbxVK7LrTLpsSN/pB8+dspfSVhBA== X-Received: by 2002:a17:902:9b89:b029:d2:42a6:88f with SMTP id y9-20020a1709029b89b02900d242a6088fmr1789567plp.71.1601337886094; Mon, 28 Sep 2020 17:04:46 -0700 (PDT) Received: from Asurada-Nvidia.nvidia.com (thunderhill.nvidia.com. [216.228.112.22]) by smtp.gmail.com with ESMTPSA id fz23sm2392814pjb.36.2020.09.28.17.04.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Sep 2020 17:04:45 -0700 (PDT) From: Nicolin Chen To: thierry.reding@gmail.com, joro@8bytes.org Cc: vdumpa@nvidia.com, jonathanh@nvidia.com, digetx@gmail.com, linux-tegra@vger.kernel.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 0/2] iommu/tegra-smmu: Two followup changes Date: Mon, 28 Sep 2020 16:58:59 -0700 Message-Id: <20200928235901.28337-1-nicoleotsuka@gmail.com> X-Mailer: git-send-email 2.17.1 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Two followup patches for tegra-smmu: PATCH-1 is a clean-up patch for the recently applied SWGROUP change. PATCH-2 fixes a potential race condition Changelog v1->v2: * Separated first two changs of V1 so they may get applied first, since the other three changes need some extra time to finalize. Nicolin Chen (2): iommu/tegra-smmu: Unwrap tegra_smmu_group_get iommu/tegra-smmu: Expend mutex protection range drivers/iommu/tegra-smmu.c | 53 ++++++++++++++++++-------------------- 1 file changed, 25 insertions(+), 28 deletions(-) -- 2.17.1