From patchwork Mon Mar 14 11:53:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 551315 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 38B8FC433FE for ; Mon, 14 Mar 2022 12:10:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235347AbiCNMME (ORCPT ); Mon, 14 Mar 2022 08:12:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60178 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241045AbiCNMIR (ORCPT ); Mon, 14 Mar 2022 08:08:17 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D3CB32DABF; Mon, 14 Mar 2022 05:04:22 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 42C62B80DF0; Mon, 14 Mar 2022 12:04:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 47CDFC340E9; Mon, 14 Mar 2022 12:04:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1647259459; bh=VOh4WZWDHbvl0DVM0VCouT/2UyXl+kHCC7NlZIFYlBw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=k651MXGQdYCuKkJSGXEuk9sd6m6DWiHUMxErZ8+TzJ8oTYNieRgtt8fy3W6GF4I1E hT8YjMvqnhePlznDwy3+1/O7rR6LonHupD1ITQy7HTreQJzTYacCJwRE5O8GgbeZ9K /5NHUmKAERQSSyuHPnnEoHuM8+MCZhNcGMEJ6gLk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, kernel test robot , Dan Carpenter , Xie Yongji , "Michael S. Tsirkin" , Jason Wang , Sasha Levin Subject: [PATCH 5.15 012/110] vduse: Fix returning wrong type in vduse_domain_alloc_iova() Date: Mon, 14 Mar 2022 12:53:14 +0100 Message-Id: <20220314112743.375956292@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220314112743.029192918@linuxfoundation.org> References: <20220314112743.029192918@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Xie Yongji [ Upstream commit b9d102dafec6af1c07b610faf0a6d4e8aee14ae0 ] This fixes the following smatch warnings: drivers/vdpa/vdpa_user/iova_domain.c:305 vduse_domain_alloc_iova() warn: should 'iova_pfn << shift' be a 64 bit type? Fixes: 8c773d53fb7b ("vduse: Implement an MMU-based software IOTLB") Reported-by: kernel test robot Reported-by: Dan Carpenter Signed-off-by: Xie Yongji Link: https://lore.kernel.org/r/20220121083940.102-1-xieyongji@bytedance.com Signed-off-by: Michael S. Tsirkin Acked-by: Jason Wang Signed-off-by: Sasha Levin --- drivers/vdpa/vdpa_user/iova_domain.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/vdpa/vdpa_user/iova_domain.c b/drivers/vdpa/vdpa_user/iova_domain.c index 1daae2608860..0678c2514197 100644 --- a/drivers/vdpa/vdpa_user/iova_domain.c +++ b/drivers/vdpa/vdpa_user/iova_domain.c @@ -302,7 +302,7 @@ vduse_domain_alloc_iova(struct iova_domain *iovad, iova_len = roundup_pow_of_two(iova_len); iova_pfn = alloc_iova_fast(iovad, iova_len, limit >> shift, true); - return iova_pfn << shift; + return (dma_addr_t)iova_pfn << shift; } static void vduse_domain_free_iova(struct iova_domain *iovad,