From patchwork Fri Aug 16 09:24:28 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Denis Efremov (Oracle)" X-Patchwork-Id: 11097371 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C375B912 for ; Fri, 16 Aug 2019 09:25:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B2F0028994 for ; Fri, 16 Aug 2019 09:25:13 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A3F2328995; Fri, 16 Aug 2019 09:25:13 +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=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable 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 5148D289AF for ; Fri, 16 Aug 2019 09:25:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727100AbfHPJZG (ORCPT ); Fri, 16 Aug 2019 05:25:06 -0400 Received: from mail-wm1-f65.google.com ([209.85.128.65]:50529 "EHLO mail-wm1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726864AbfHPJZF (ORCPT ); Fri, 16 Aug 2019 05:25:05 -0400 Received: by mail-wm1-f65.google.com with SMTP id v15so3497486wml.0; Fri, 16 Aug 2019 02:25:04 -0700 (PDT) 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=nxzAYP11S0d/1a3dYYvLWUsgWAZhT+IPIf01ibLHMzA=; b=QO8yCch33opuXgmTAPGDbZToVsky87JDx6C5dq0lMyrihIEEYKc0KJ0R9QG8zl7Y5y abESgonhXEJdvseVYKiRVQxuLBEr+Yw3om/K9IBNRw9+QzS9apNDb8ap9YBW1Go5kw0L G3J8tnN2dkVzQda4nfhoeSuI4J5oPGh5w1bjJElAIj1+ThiyrK5xW8HUdIJRac5X6d2w sl7F2+j7Wl9/ZF+sbSKUxm4Cq6U+24LQ6qvEsCUutffe1OJ5FCjmgpIpNurKLU4OGLDL fmtFu/fKA8tzigOY5PC4lPNDTrtZmDE8YFlLCqaZJb0aQwvGHBBVOUOfB5gxb5U6gdnh XK0Q== X-Gm-Message-State: APjAAAVQSyHVQoM1EJjndBDEhufcTZfDw4qIhTZSAI+1vAHl+eGYwH8O VUDx8qZ9LfnYOpXbgvUzXR4= X-Google-Smtp-Source: APXvYqwdkzptSDBPYf3snC2X8tSU5Jjgv3fMa6O+QngGpQvJwi3nqYEMp2zDy4ghfVZwAHsAABD5yA== X-Received: by 2002:a1c:4d0c:: with SMTP id o12mr6541900wmh.62.1565947503517; Fri, 16 Aug 2019 02:25:03 -0700 (PDT) Received: from localhost.localdomain (broadband-188-32-48-208.ip.moscow.rt.ru. [188.32.48.208]) by smtp.googlemail.com with ESMTPSA id q20sm16521138wrc.79.2019.08.16.02.25.01 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 16 Aug 2019 02:25:03 -0700 (PDT) From: Denis Efremov To: Bjorn Helgaas Cc: Denis Efremov , linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, Sebastian Ott , Gerald Schaefer , "H. Peter Anvin" , Giuseppe Cavallaro , Alexandre Torgue , Matt Porter , Alexandre Bounine , Peter Jones , Bartlomiej Zolnierkiewicz , Cornelia Huck , Alex Williamson , Andrew Murray , Jose Abreu , kvm@vger.kernel.org, linux-fbdev@vger.kernel.org, netdev@vger.kernel.org, x86@kernel.org, linux-s390@vger.kernel.org Subject: [PATCH v2 01/10] PCI: Add define for the number of standard PCI BARs Date: Fri, 16 Aug 2019 12:24:28 +0300 Message-Id: <20190816092437.31846-2-efremov@linux.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190816092437.31846-1-efremov@linux.com> References: <20190816092437.31846-1-efremov@linux.com> MIME-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Code that iterates over all standard PCI BARs typically uses PCI_STD_RESOURCE_END. However, it requires the "unusual" loop condition "i <= PCI_STD_RESOURCE_END" rather than something more standard like "i < PCI_STD_NUM_BARS". This patch adds the definition PCI_STD_NUM_BARS which is equivalent to "PCI_STD_RESOURCE_END + 1" and updates loop conditions to use it. Signed-off-by: Denis Efremov --- drivers/pci/quirks.c | 2 +- include/linux/pci.h | 2 +- include/uapi/linux/pci_regs.h | 1 + 3 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 208aacf39329..02bdf3a0231e 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -475,7 +475,7 @@ static void quirk_extend_bar_to_page(struct pci_dev *dev) { int i; - for (i = 0; i <= PCI_STD_RESOURCE_END; i++) { + for (i = 0; i < PCI_STD_NUM_BARS; i++) { struct resource *r = &dev->resource[i]; if (r->flags & IORESOURCE_MEM && resource_size(r) < PAGE_SIZE) { diff --git a/include/linux/pci.h b/include/linux/pci.h index 9e700d9f9f28..7b9590d5dc2d 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -76,7 +76,7 @@ enum pci_mmap_state { enum { /* #0-5: standard PCI resources */ PCI_STD_RESOURCES, - PCI_STD_RESOURCE_END = 5, + PCI_STD_RESOURCE_END = PCI_STD_RESOURCES + PCI_STD_NUM_BARS - 1, /* #6: expansion ROM resource */ PCI_ROM_RESOURCE, diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h index f28e562d7ca8..68b571d491eb 100644 --- a/include/uapi/linux/pci_regs.h +++ b/include/uapi/linux/pci_regs.h @@ -34,6 +34,7 @@ * of which the first 64 bytes are standardized as follows: */ #define PCI_STD_HEADER_SIZEOF 64 +#define PCI_STD_NUM_BARS 6 /* Number of standard BARs */ #define PCI_VENDOR_ID 0x00 /* 16 bits */ #define PCI_DEVICE_ID 0x02 /* 16 bits */ #define PCI_COMMAND 0x04 /* 16 bits */