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Sun, 8 Apr 2018 20:35:11 -0400 From: Sasha Levin To: "stable@vger.kernel.org" , "linux-kernel@vger.kernel.org" CC: Bjorn Helgaas , Sasha Levin Subject: [PATCH AUTOSEL for 4.4 028/162] PCI: Correct PCI_STD_RESOURCE_END usage Thread-Topic: [PATCH AUTOSEL for 4.4 028/162] PCI: Correct PCI_STD_RESOURCE_END usage Thread-Index: AQHTz5mffdEG0RkUEUumcnd6H+oHnQ== Date: Mon, 9 Apr 2018 00:28:03 +0000 Message-ID: <20180409002738.163941-28-alexander.levin@microsoft.com> References: <20180409002738.163941-1-alexander.levin@microsoft.com> In-Reply-To: <20180409002738.163941-1-alexander.levin@microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [52.168.54.252] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;DM5PR2101MB0725;7:z2A2Scde5wRd+tIGiZvTWtugR+qngw9ZMjnLFXuZ7fgRYLAXjfrqwjjvPgPYY11ql9w5ogyDlHvZIfNEiIZBZ1WaO8F5LW+U5rLZ9r7vi4xE6IyNB78mh5OCH7FHaXcwgco0kWPbzWfNi0OyR6xlQin5C/GwK/uC1Yxot3gZ06i2RGHRlBbOFgG461bXlzVHM/R0puB2+SP2ZK/VOb8BlLWgoeR46CvSeZrDMN87+KvF1uhZoY0rhZtE3eUZ++cK;20:z2+L9xX7fn9EZUAYluTfjQxHn6rRABD7vgXrn/K2h+exHU8pRmnetQFUNSpIla45ClV+q0sbC6feO4rgM7B0O5wTNdmHJ+mUbdmhSUhDHw8k1fBD5S9BhSf/LUbR8O4G3LtkBpNse+TXltDGhl/VM2dW6KfuKv44Pv0h/2pXgwE= x-ms-office365-filtering-ht: Tenant X-MS-Office365-Filtering-Correlation-Id: 1fe657f4-b86a-4510-766f-08d59db1bf0c x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(48565401081)(5600026)(4604075)(3008032)(4534165)(4627221)(201703031133081)(201702281549075)(2017052603328)(7193020);SRVR:DM5PR2101MB0725; 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x-microsoft-antispam-message-info: /usNTDp6zdmCA6LeUQoBVKFMHOUXcFofJnDTCvBRBc3eo/8IPsurcMS9lET0DanvhqMPgzdVl/l6oQFNSQOQ/u1n/7WsIe0H9br6jfA6GCCRwJ+LzPypNN9whyzCtCt8VPp9jq5cPOVZIWNJyZNpZiLN8GR0t+uS4+2hBDYBe52zBUmZA/JPwYqQayKgVjbeSGX1KYGMlT5bReCsD2v5MBwrWmIfH3ew7qxu5S/flOALBvkXDdJ/C4UZIsuV9+lJLcQrPBLLhVshc2YGM5BR0HS3x71bW6oNYThYaLyR6SnKQT0EJB36Q82utayaWinaFOHSwm5tJSO2I3ImOgb1LEYWLioanrT8ZPWRmgN/vokzeX3jfGGAGl4UL7+OGWDzbOnxV2BUiThRlbiMe0DxXJCLGf/swkTbCQfv2laP8fQ= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: 1fe657f4-b86a-4510-766f-08d59db1bf0c X-MS-Exchange-CrossTenant-originalarrivaltime: 09 Apr 2018 00:28:03.0361 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB0725 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: Bjorn Helgaas [ Upstream commit 2f686f1d9beee135de6d08caea707ec7bfc916d4 ] PCI_STD_RESOURCE_END is (confusingly) the index of the last valid BAR, not the *number* of BARs. To iterate through all possible BARs, we need to include PCI_STD_RESOURCE_END. Fixes: 9fe373f9997b ("PCI: Increase IBM ipr SAS Crocodile BARs to at least = system page size") Signed-off-by: Bjorn Helgaas Signed-off-by: Sasha Levin --- drivers/pci/quirks.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 4eb1cf0ed00c..ae6aa7b385c2 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -304,7 +304,7 @@ static void quirk_extend_bar_to_page(struct pci_dev *de= v) { int i; =20 - for (i =3D 0; i < PCI_STD_RESOURCE_END; i++) { + for (i =3D 0; i <=3D PCI_STD_RESOURCE_END; i++) { struct resource *r =3D &dev->resource[i]; =20 if (r->flags & IORESOURCE_MEM && resource_size(r) < PAGE_SIZE) { --=20 2.15.1