From patchwork Fri Jan 12 08:42:09 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 10159815 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 22451605BD for ; Fri, 12 Jan 2018 08:43:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0DD6A286F2 for ; Fri, 12 Jan 2018 08:43:26 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0232E288ED; Fri, 12 Jan 2018 08:43:25 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9CAE2288EC for ; Fri, 12 Jan 2018 08:43:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933465AbeALInY (ORCPT ); Fri, 12 Jan 2018 03:43:24 -0500 Received: from bombadil.infradead.org ([65.50.211.133]:45915 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754460AbeALInQ (ORCPT ); Fri, 12 Jan 2018 03:43:16 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=5S/szAHTUmmJn1Co90q5LcSgooOG8CSifcz4IuEw/Nc=; b=ekCljsUy7bO+hS42MoLrZuEey nBM9CxMp9/HtPKpJDWHogMWriuehafZU8An6JZUGGQPsFJj50c07QnUA59Tx3BxnkJKS8TvAE/Le/ elXUFzUsOO43O2qvLFqnCgaumSNMaj62ly+vgRnDO56TkVysqB7NTKKXvmEHco8SArhiEsdQnjRMT COQOBmE0bOunxquDrtH/jqyTA+miahf4cNl+Wm1JG0kybtxU/Z4Si0Q/ajvVga0TxcBIgAgq+yxW3 jiwFbl6qpZZpRO9DntsI5GOxyUGqb/PnthzYAZ93kE3yQx6mZVz6DbwoagUl6OWN/N31o0QccYBWp FGNLinpdA==; Received: from [188.21.167.3] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.89 #1 (Red Hat Linux)) id 1eZuvf-0007eh-MD; Fri, 12 Jan 2018 08:43:12 +0000 From: Christoph Hellwig To: iommu@lists.linux-foundation.org Cc: Konrad Rzeszutek Wilk , linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-c6x-dev@linux-c6x.org, linux-cris-kernel@axis.com, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-metag@vger.kernel.org, Michal Simek , linux-mips@linux-mips.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, patches@groups.riscv.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, Guan Xuetao , x86@kernel.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 11/34] mips: fix an off-by-one in dma_capable Date: Fri, 12 Jan 2018 09:42:09 +0100 Message-Id: <20180112084232.2857-12-hch@lst.de> X-Mailer: git-send-email 2.14.2 In-Reply-To: <20180112084232.2857-1-hch@lst.de> References: <20180112084232.2857-1-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This makes it match the generic version. Reported-by: Vladimir Murzin Signed-off-by: Christoph Hellwig --- arch/mips/include/asm/dma-mapping.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h index 0d9418d264f9..5c334ac15945 100644 --- a/arch/mips/include/asm/dma-mapping.h +++ b/arch/mips/include/asm/dma-mapping.h @@ -22,7 +22,7 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) if (!dev->dma_mask) return false; - return addr + size <= *dev->dma_mask; + return addr + size - 1 <= *dev->dma_mask; } static inline void dma_mark_clean(void *addr, size_t size) {}