Message ID | 20190204153601.7576-8-s.miroshnichenko@yadro.com |
---|---|
State | Superseded |
Delegated to: | Bjorn Helgaas |
Headers | show
Return-Path: <linux-pci-owner@vger.kernel.org> 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=<UNKNOWN>) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=yadro.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=yadro.com header.i=@yadro.com header.b="bu/jyjH3"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 43tWyX6gKGz9s6w for <incoming@patchwork.ozlabs.org>; Tue, 5 Feb 2019 02:36:20 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731301AbfBDPgT (ORCPT <rfc822;incoming@patchwork.ozlabs.org>); Mon, 4 Feb 2019 10:36:19 -0500 Received: from mta-01.yadro.com ([89.207.88.251]:49270 "EHLO mta-01.yadro.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730135AbfBDPgT (ORCPT <rfc822;linux-pci@vger.kernel.org>); Mon, 4 Feb 2019 10:36:19 -0500 Received: from localhost (unknown [127.0.0.1]) by mta-01.yadro.com (Postfix) with ESMTP id 853C241967; Mon, 4 Feb 2019 15:36:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=yadro.com; h= content-type:content-type:content-transfer-encoding:mime-version :references:in-reply-to:x-mailer:message-id:date:date:subject :subject:from:from:received:received:received; s=mta-01; t= 1549294576; x=1551108977; bh=HpciNbmk+sNxY45aMdCPoyx/0SeyWnSlTYO UPzVN1nY=; b=bu/jyjH37JfvKhlXaV0m3Y9xR98SL6ARKTfUJLhzaqXQp0dvQMW NrZJrqjlMRGygDyOnXnSnY45b2QyBEenV9P4tYoBEa/aBighNYpH8tZ4ivsV0BGw qXg2bWpXpgfgV5MJeQIhyZp6d57hOgFLjRpxzz2708mFHcCx07e7Inug= X-Virus-Scanned: amavisd-new at yadro.com Received: from mta-01.yadro.com ([127.0.0.1]) by localhost (mta-01.yadro.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Ts_wZlMgiMPT; Mon, 4 Feb 2019 18:36:16 +0300 (MSK) Received: from T-EXCH-02.corp.yadro.com (t-exch-02.corp.yadro.com [172.17.10.102]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mta-01.yadro.com (Postfix) with ESMTPS id 467D94193A; Mon, 4 Feb 2019 18:36:11 +0300 (MSK) Received: from NB-148.yadro.com (172.17.15.60) by T-EXCH-02.corp.yadro.com (172.17.10.102) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.669.32; Mon, 4 Feb 2019 18:36:10 +0300 From: Sergey Miroshnichenko <s.miroshnichenko@yadro.com> To: <linux-pci@vger.kernel.org> CC: Bjorn Helgaas <helgaas@kernel.org>, Rajat Jain <rajatja@google.com>, <linux@yadro.com>, Sergey Miroshnichenko <s.miroshnichenko@yadro.com> Subject: [PATCH RFC v3 07/21] PCI: Wake up bridges during rescan when movable BARs enabled Date: Mon, 4 Feb 2019 18:35:47 +0300 Message-ID: <20190204153601.7576-8-s.miroshnichenko@yadro.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190204153601.7576-1-s.miroshnichenko@yadro.com> References: <20190204153601.7576-1-s.miroshnichenko@yadro.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [172.17.15.60] X-ClientProxiedBy: T-EXCH-01.corp.yadro.com (172.17.10.101) To T-EXCH-02.corp.yadro.com (172.17.10.102) Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: <linux-pci.vger.kernel.org> X-Mailing-List: linux-pci@vger.kernel.org |
Series |
PCI: Allow BAR movement during hotplug
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diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index e18d07996cf3..7fe68b4f04bf 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -3176,6 +3176,8 @@ static void pci_bus_rescan_prepare(struct pci_bus *bus) { struct pci_dev *dev; + pm_runtime_get_sync(&bus->dev); + list_for_each_entry(dev, &bus->devices, bus_list) { struct pci_bus *child = dev->subordinate; @@ -3202,6 +3204,8 @@ static void pci_bus_rescan_done(struct pci_bus *bus) dev->driver->rescan_done(dev); } } + + pm_runtime_put(&bus->dev); } /**
Use the PM runtime methods to wake up the bridges before accessing their config space. Signed-off-by: Sergey Miroshnichenko <s.miroshnichenko@yadro.com> --- drivers/pci/probe.c | 4 ++++ 1 file changed, 4 insertions(+)