From patchwork Wed Aug 24 06:43:00 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?WW9uZyBXdSAo5ZC05YuHKQ==?= X-Patchwork-Id: 12953017 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 E1A38C32793 for ; Wed, 24 Aug 2022 07:34:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=3mv7nC1GidQo3pcX1jLcFhAjG/DTVYdU2ZAAfY1xEIw=; b=FIYDTXnUXZ+qp0dJ1EClzHHJz7 hrOZRpD97d9eTbVwBTlqz6Fw0egVkP28VRbgFIXQc7VX4qats/4n0UZuSVBvukCZDEsHX6stx5zZ1 8LUl+D3VrayFrNFauOdpKhdGFren2CwGEkgAXuVJ/gN4JIr9EEOMvj/fswf8uIej9NPJwfzdXzCGR OkZlTL4FMlV/vrLKJfe7MWWt0Jv7Ch/JxOqPqBoHNJaw1Q3dwkVcdolDb9Dr9uecT6zxtVi/M860O 1Oonmkdh82XcHjcTKAReFteeLtrrgafyQJtYCFwz40jinxpmIi6NIyToZsf+AMMiX/DS7qEez8v0F ZcfsVufA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oQkty-00BBXE-SC; Wed, 24 Aug 2022 07:34:14 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oQktn-00BBVO-QV; Wed, 24 Aug 2022 07:34:05 +0000 X-UUID: e4de1f3c25c145ca8518985f91ae9d61-20220824 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:Message-ID:Date:Subject:CC:To:From; bh=3mv7nC1GidQo3pcX1jLcFhAjG/DTVYdU2ZAAfY1xEIw=; b=odpjMI4YTQ1nbivMO25ukzYX/DQJ9wmCVai8UeHDHDpL8S1Uoy3L2lwTj0HvHeLunYdJpKrTNAybZRB6vFwTQ3dhXgyMHyGEX4sjHrD2HscC7rfMSiM9bsF/CvFNTzMxo+hFxDgp4Fac9SkUmj/vY86aO3K7Apkg7pIdFRGKWhA=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.10,REQID:560310ac-f309-4e25-bb26-85e35e15dfb6,OB:0,L OB:0,IP:0,URL:0,TC:0,Content:-5,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release _Ham,ACTION:release,TS:-5 X-CID-META: VersionHash:84eae18,CLOUDID:9ee973cf-20bd-4e5e-ace8-00692b7ab380,C OID:IGNORED,Recheck:0,SF:nil,TC:nil,Content:0,EDM:-3,IP:nil,URL:1,File:nil ,Bulk:nil,QS:nil,BEC:nil,COL:0 X-UUID: e4de1f3c25c145ca8518985f91ae9d61-20220824 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 267699567; Wed, 24 Aug 2022 00:33:58 -0700 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.3; Wed, 24 Aug 2022 14:43:11 +0800 Received: from localhost.localdomain (10.17.3.154) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.15 via Frontend Transport; Wed, 24 Aug 2022 14:43:10 +0800 From: Yong Wu To: Joerg Roedel , Matthias Brugger , Will Deacon CC: Robin Murphy , , , , , , "Yong Wu" , AngeloGioacchino Del Regno , , , , , , , , Guenter Roeck , "Dan Carpenter" Subject: [PATCH v4 0/6] iommu/mediatek: Improve safety from invalid dts input Date: Wed, 24 Aug 2022 14:43:00 +0800 Message-ID: <20220824064306.21495-1-yong.wu@mediatek.com> X-Mailer: git-send-email 2.18.0 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220824_003403_875291_C5557336 X-CRM114-Status: UNSURE ( 8.84 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org This patchset contains misc improve patches. Mainly to improve safety from invalid dts input. Change notes: v4: a) Just remove the first patch about dev_err_probe since it was merged. b) Rebase v6.0-rc1 v3: https://lore.kernel.org/linux-mediatek/20220701053942.3266-1-yong.wu@mediatek.com/ a) Add platform_device_put from Robin. b) Use component_match_add instead component_match_add_release suggested from Robin. v2: https://lore.kernel.org/linux-mediatek/20220616054203.11365-1-yong.wu@mediatek.com/ a) Rebase on v5.19-rc1. b) Add a New patch [5/5] just remove a variable that only is for v1. v1: https://lore.kernel.org/linux-mediatek/20220511064920.18455-1-yong.wu@mediatek.com/ Base on linux-next-20220510. the improve safety from dts is base on: https://lore.kernel.org/linux-mediatek/20211210205704.1664928-1-linux@roeck-us.net/ Guenter Roeck (1): iommu/mediatek: Validate number of phandles associated with "mediatek,larbs" Yong Wu (5): iommu/mediatek: Add platform_device_put for recovering the device refcnt iommu/mediatek: Use component_match_add iommu/mediatek: Add error path for loop of mm_dts_parse iommu/mediatek: Improve safety for mediatek,smi property in larb nodes iommu/mediatek: Remove unused "mapping" member from mtk_iommu_data drivers/iommu/mtk_iommu.c | 115 +++++++++++++++++++++++++++----------- 1 file changed, 83 insertions(+), 32 deletions(-)