From patchwork Fri Aug 3 14:38:44 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Petazzoni X-Patchwork-Id: 953244 X-Patchwork-Delegate: lorenzo.pieralisi@arm.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-pci-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=bootlin.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 41hqRh0Nbzz9s2g for ; Sat, 4 Aug 2018 00:38:56 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732422AbeHCQfb (ORCPT ); Fri, 3 Aug 2018 12:35:31 -0400 Received: from mail.bootlin.com ([62.4.15.54]:50340 "EHLO mail.bootlin.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732250AbeHCQfa (ORCPT ); Fri, 3 Aug 2018 12:35:30 -0400 Received: by mail.bootlin.com (Postfix, from userid 110) id 4D96F207BD; Fri, 3 Aug 2018 16:38:51 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on mail.bootlin.com X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,SHORTCIRCUIT, URIBL_BLOCKED shortcircuit=ham autolearn=disabled version=3.4.0 Received: from localhost (AAubervilliers-681-1-99-143.w90-88.abo.wanadoo.fr [90.88.4.143]) by mail.bootlin.com (Postfix) with ESMTPSA id 25E6D20712; Fri, 3 Aug 2018 16:38:51 +0200 (CEST) From: Thomas Petazzoni To: Bjorn Helgaas , Lorenzo Pieralisi , linux-pci@vger.kernel.org Cc: Nadav Haklai , Gregory Clement , =?utf-8?q?Miqu=C3=A8l_Raynal?= , Maxime Chevallier , Antoine Tenart , linux-arm-kernel@lists.infradead.org, Thomas Petazzoni Subject: [PATCH v2 2/6] PCI: mvebu: fix I/O space end address calculation Date: Fri, 3 Aug 2018 16:38:44 +0200 Message-Id: <20180803143848.21551-3-thomas.petazzoni@bootlin.com> X-Mailer: git-send-email 2.14.4 In-Reply-To: <20180803143848.21551-1-thomas.petazzoni@bootlin.com> References: <20180803143848.21551-1-thomas.petazzoni@bootlin.com> Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org pcie->realio.end should be the address of last byte of the area, therefore using resource_size() of another resource is not correct, we must substract 1 to get the address of the last byte. Fixes: 11be65472a427 ("PCI: mvebu: Adapt to the new device tree layout") Signed-off-by: Thomas Petazzoni --- This bug never had any visible impact, so there is no need to push to stable. --- drivers/pci/controller/pci-mvebu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/controller/pci-mvebu.c b/drivers/pci/controller/pci-mvebu.c index 38fa2d08527d..a195592723c2 100644 --- a/drivers/pci/controller/pci-mvebu.c +++ b/drivers/pci/controller/pci-mvebu.c @@ -1219,7 +1219,7 @@ static int mvebu_pcie_probe(struct platform_device *pdev) pcie->realio.start = PCIBIOS_MIN_IO; pcie->realio.end = min_t(resource_size_t, IO_SPACE_LIMIT, - resource_size(&pcie->io)); + resource_size(&pcie->io) - 1); } else pcie->realio = pcie->io;