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=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=unavailable 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 41F58C43461 for ; Thu, 22 Apr 2021 08:15:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 10AE061426 for ; Thu, 22 Apr 2021 08:15:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235311AbhDVIQE (ORCPT ); Thu, 22 Apr 2021 04:16:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38268 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235242AbhDVIQB (ORCPT ); Thu, 22 Apr 2021 04:16:01 -0400 Received: from mail-pl1-x62c.google.com (mail-pl1-x62c.google.com [IPv6:2607:f8b0:4864:20::62c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6E18FC06138C for ; Thu, 22 Apr 2021 01:15:27 -0700 (PDT) Received: by mail-pl1-x62c.google.com with SMTP id h20so23138930plr.4 for ; Thu, 22 Apr 2021 01:15:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=KeK8DSQdHPnfBsnYoJml8hxFMiJru7O0NA4XbeWzkSY=; b=AsZrZqJIimVAtGXMRVsWcKrsorVck1XgLTh3pHNLrWSxkdDRnGm7t6TqpM5ldf6xB7 mC86KkbKnwzlnS/clKnP6s/9uO1XB8opjFqiCDh6A7+1mZw2SFs1IwNU2LHHphHOt6QY p2b9YBU51p/mzY9rCQjA96SJjLr18SEsXNgpY= 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=KeK8DSQdHPnfBsnYoJml8hxFMiJru7O0NA4XbeWzkSY=; b=IW2kzgGqBvzlYYOWliYo5jfaFqxWIQ72uIKQjbw8GbwkI4M2H5iOrj92a1WUmwkc94 CrqreUa6dxPLuO2HJKZUSihH1c7LPlRRzpU6QYKyWnGhmrfN/oDTFhDUfb88rotCCTpM qi9n0pYHoumZKjZVe0sQrpwP8d7duoFNoo0tdVrgXPFajOuhPSyRMKFh51W0JrRlRKTv i9KDb6uf5qmYbvDSjMQcOCTPKaLQ5UgVsjhxDTD1KvGsyx1FuM9ZeDL4cyvr59lGj0Y+ t9EAUGD9FXoULnOdJkmC4MlQG5w1sFuGEzLu5WH47fd2NlHQGScCnGwRe/7sftkbjcBt Pu0Q== X-Gm-Message-State: AOAM532a5Z4w++wkdvSrHmjKHosvGzoePWHZZSRSx55vzB+83HoV9IbJ g92XpDcj4AMB+NfihBNy3yzxrA== X-Google-Smtp-Source: ABdhPJx3x6k3UuJoTeVgHgSVZk2TSCFARKLuNRut1DwuLYspzTDGMvJMpDB6O5YCyQkIwGCuRKmyJg== X-Received: by 2002:a17:90b:298:: with SMTP id az24mr2746175pjb.123.1619079327035; Thu, 22 Apr 2021 01:15:27 -0700 (PDT) Received: from localhost ([2401:fa00:1:10:1a8e:1bde:f79e:c302]) by smtp.gmail.com with UTF8SMTPSA id o30sm1546049pgc.55.2021.04.22.01.15.19 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 22 Apr 2021 01:15:26 -0700 (PDT) From: Claire Chang To: Joerg Roedel , Will Deacon , Frank Rowand , Konrad Rzeszutek Wilk , boris.ostrovsky@oracle.com, jgross@suse.com, Christoph Hellwig , Marek Szyprowski Cc: benh@kernel.crashing.org, paulus@samba.org, "list@263.net:IOMMU DRIVERS" , sstabellini@kernel.org, Robin Murphy , grant.likely@arm.com, xypron.glpk@gmx.de, Thierry Reding , mingo@kernel.org, bauerman@linux.ibm.com, peterz@infradead.org, Greg KH , Saravana Kannan , "Rafael J . Wysocki" , heikki.krogerus@linux.intel.com, Andy Shevchenko , Randy Dunlap , Dan Williams , Bartosz Golaszewski , linux-devicetree , lkml , linuxppc-dev@lists.ozlabs.org, xen-devel@lists.xenproject.org, Nicolas Boichat , Jim Quinlan , tfiga@chromium.org, bskeggs@redhat.com, bhelgaas@google.com, chris@chris-wilson.co.uk, tientzu@chromium.org, daniel@ffwll.ch, airlied@linux.ie, dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, jani.nikula@linux.intel.com, jxgao@google.com, joonas.lahtinen@linux.intel.com, linux-pci@vger.kernel.org, maarten.lankhorst@linux.intel.com, matthew.auld@intel.com, nouveau@lists.freedesktop.org, rodrigo.vivi@intel.com, thomas.hellstrom@linux.intel.com Subject: [PATCH v5 01/16] swiotlb: Fix the type of index Date: Thu, 22 Apr 2021 16:14:53 +0800 Message-Id: <20210422081508.3942748-2-tientzu@chromium.org> X-Mailer: git-send-email 2.31.1.368.gbe11c130af-goog In-Reply-To: <20210422081508.3942748-1-tientzu@chromium.org> References: <20210422081508.3942748-1-tientzu@chromium.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Fix the type of index from unsigned int to int since find_slots() might return -1. Fixes: 0774983bc923 ("swiotlb: refactor swiotlb_tbl_map_single") Signed-off-by: Claire Chang --- kernel/dma/swiotlb.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c index 0a5b6f7e75bc..8635a57f88e9 100644 --- a/kernel/dma/swiotlb.c +++ b/kernel/dma/swiotlb.c @@ -499,7 +499,8 @@ phys_addr_t swiotlb_tbl_map_single(struct device *dev, phys_addr_t orig_addr, { struct io_tlb_mem *mem = io_tlb_default_mem; unsigned int offset = swiotlb_align_offset(dev, orig_addr); - unsigned int index, i; + unsigned int i; + int index; phys_addr_t tlb_addr; if (!mem) -- 2.31.1.368.gbe11c130af-goog