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=-17.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 7E33FC4363C for ; Mon, 12 Apr 2021 16:24:05 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2F17C61288 for ; Mon, 12 Apr 2021 16:24:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2F17C61288 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:Cc:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=uW2tgZyHpciqqC//XQpAUcJ+Eilt4muPrHcZuONmvRU=; b=iXiBVdFj1ScQGhmT5wTh4U3Uz qPzSGUnh0L0bSKKyIi7hmS7tMRCfRqplynkB/dKv+VZSRirDEsqHpRq9YbVQsBBh/gXWPYu3Vc2B+ tB67JH+aQooNI4oZhnAXuKEDA2SYyvUXmynoIe+qvyb6/EGDmoyZDOhkQ02bb+g1s+tNgow0rXCPd IjuL4bh+TtPWtSfC1f36ywzudzS802CsF7u9f7yHogCxs1yo2uZj4QajbJCgSe9lpFF6Ew4feJZLT tEc7l2uwTyEJdiQCsAPgiKCCqlNtnxpmwJ3fnmq1FmSUl7e4IiZuWq+6TgDMht2U2DYMxyt2WoqRr EGpkRrduA==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lVzLx-007El8-Hv; Mon, 12 Apr 2021 16:23:57 +0000 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lVzLs-007Ejk-GV for linux-riscv@desiato.infradead.org; Mon, 12 Apr 2021 16:23:52 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=RW2H5XIPY6QsH7gM+Z0AnWNbza6KDYPFp5A3VyD9w6w=; b=THoIyD3LtLklqgwOMa/rDPTx3s iJ/M0MdBZawhchhfXQK3i/YYBTZgAiepnWkrkAA4qhubGRVtfikn+JrxVdEq32vvRyiK8/nA4usfW TjmPpXC8SwSAn2F46g5hM7d+A/Rsr8sPD/mhtXis1VoQCx74MIbh0SKff4tEIywxpli64fu7+Acje 6tB9AaaUKiMu4zc0Dn7kLRW+W9tP8LoaqHUwyWpT5rj2igNfs5p3u6brigxsPdJ7Qg9PvtBWJpNMD Gg7Vge0EHokptxNITswFPneG/TBwxYfL4pPN2zThH4USYYzYhBisemuexAF7ThVyYqcioVd6MoJzD zWeleGxg==; Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lVzLq-006O55-4B for linux-riscv@lists.infradead.org; Mon, 12 Apr 2021 16:23:51 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 2CF6A61350; Mon, 12 Apr 2021 16:23:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1618244629; bh=h/oMOtZ4b3Lu1QUgWmshCmfFJ+JNBlKbRPav86MrSsw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=j2do6RJFChPB82z/IWowX1e0ViHjGj6lhH6gTFJGJrwTyqlhuLkxBIpb0spe2VL0B xe5AgMerqYNdveAYi5tYflqhzKQsrJUEwMPb3bPdY1PxzLjDzgEIRGdpX8V96Wiz6f zKiGEsGl7N9Dza+MJopiMhY+Nq/NL6FhhzJas/iLEQ5/L8yLnC/x5HjoezA8IZW01I wtAxz5CMV4NEBWsi2wP2IJGfB2NKBaickLqrMVg8G5WHM3Now0JdyFewr/XqKOn2UE WTwdlbjdQ8Ob7mZCyQ46wxG2kctXkHokhFeqHpIfRguuHHTx6nSe0OVryZlrqq5VmJ VOYaUvzVip6GQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Guenter Roeck , "David S . Miller" , Sasha Levin , netdev@vger.kernel.org, linux-riscv@lists.infradead.org Subject: [PATCH AUTOSEL 5.11 43/51] pcnet32: Use pci_resource_len to validate PCI resource Date: Mon, 12 Apr 2021 12:22:48 -0400 Message-Id: <20210412162256.313524-43-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210412162256.313524-1-sashal@kernel.org> References: <20210412162256.313524-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210412_092350_226297_DE0D10EF X-CRM114-Status: UNSURE ( 9.93 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org From: Guenter Roeck [ Upstream commit 66c3f05ddc538ee796321210c906b6ae6fc0792a ] pci_resource_start() is not a good indicator to determine if a PCI resource exists or not, since the resource may start at address 0. This is seen when trying to instantiate the driver in qemu for riscv32 or riscv64. pci 0000:00:01.0: reg 0x10: [io 0x0000-0x001f] pci 0000:00:01.0: reg 0x14: [mem 0x00000000-0x0000001f] ... pcnet32: card has no PCI IO resources, aborting Use pci_resouce_len() instead. Signed-off-by: Guenter Roeck Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/amd/pcnet32.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/amd/pcnet32.c b/drivers/net/ethernet/amd/pcnet32.c index 187b0b9a6e1d..f78daba60b35 100644 --- a/drivers/net/ethernet/amd/pcnet32.c +++ b/drivers/net/ethernet/amd/pcnet32.c @@ -1534,8 +1534,7 @@ pcnet32_probe_pci(struct pci_dev *pdev, const struct pci_device_id *ent) } pci_set_master(pdev); - ioaddr = pci_resource_start(pdev, 0); - if (!ioaddr) { + if (!pci_resource_len(pdev, 0)) { if (pcnet32_debug & NETIF_MSG_PROBE) pr_err("card has no PCI IO resources, aborting\n"); err = -ENODEV; @@ -1548,6 +1547,8 @@ pcnet32_probe_pci(struct pci_dev *pdev, const struct pci_device_id *ent) pr_err("architecture does not support 32bit PCI busmaster DMA\n"); goto err_disable_dev; } + + ioaddr = pci_resource_start(pdev, 0); if (!request_region(ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_pci")) { if (pcnet32_debug & NETIF_MSG_PROBE) pr_err("io address range already allocated\n"); -- 2.30.2 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv