From patchwork Thu Feb 27 22:36:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacob Keller X-Patchwork-Id: 11411059 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B8C4F138D for ; Thu, 27 Feb 2020 22:36:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 99E32246A6 for ; Thu, 27 Feb 2020 22:36:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730419AbgB0Wgo (ORCPT ); Thu, 27 Feb 2020 17:36:44 -0500 Received: from mga18.intel.com ([134.134.136.126]:49955 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729944AbgB0Wgn (ORCPT ); Thu, 27 Feb 2020 17:36:43 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 27 Feb 2020 14:36:43 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,493,1574150400"; d="scan'208";a="238568417" Received: from jekeller-desk.amr.corp.intel.com (HELO jekeller-desk.jekeller.internal) ([10.166.244.172]) by orsmga003.jf.intel.com with ESMTP; 27 Feb 2020 14:36:43 -0800 From: Jacob Keller To: linux-pci@vger.kernel.org, netdev@vger.kernel.org Cc: Jacob Keller , QLogic-Storage-Upstream@cavium.com Subject: [PATCH 3/5] scsi: qedf: use pci_get_dsn Date: Thu, 27 Feb 2020 14:36:33 -0800 Message-Id: <20200227223635.1021197-5-jacob.e.keller@intel.com> X-Mailer: git-send-email 2.25.0.368.g28a2d05eebfb In-Reply-To: <20200227223635.1021197-1-jacob.e.keller@intel.com> References: <20200227223635.1021197-1-jacob.e.keller@intel.com> MIME-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Replace the open-coded implementation for reading the PCIe DSN with pci_get_dsn. Signed-off-by: Jacob Keller Cc: QLogic-Storage-Upstream@cavium.com --- drivers/scsi/qedf/qedf_main.c | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c index 604856e72cfb..6ef688ef465c 100644 --- a/drivers/scsi/qedf/qedf_main.c +++ b/drivers/scsi/qedf/qedf_main.c @@ -1578,7 +1578,7 @@ static void qedf_setup_fdmi(struct qedf_ctx *qedf) struct fc_lport *lport = qedf->lport; struct fc_host_attrs *fc_host = shost_to_fc_host(lport->host); u8 buf[8]; - int i, pos; + int i, err; /* * fdmi_enabled needs to be set for libfc to execute FDMI registration. @@ -1591,20 +1591,16 @@ static void qedf_setup_fdmi(struct qedf_ctx *qedf) */ /* Get the PCI-e Device Serial Number Capability */ - pos = pci_find_ext_capability(qedf->pdev, PCI_EXT_CAP_ID_DSN); - if (pos) { - pos += 4; - for (i = 0; i < 8; i++) - pci_read_config_byte(qedf->pdev, pos + i, &buf[i]); - + err = pci_get_dsn(qedf->pdev, buf); + if (err) + snprintf(fc_host->serial_number, + sizeof(fc_host->serial_number), "Unknown"); + else snprintf(fc_host->serial_number, sizeof(fc_host->serial_number), "%02X%02X%02X%02X%02X%02X%02X%02X", buf[7], buf[6], buf[5], buf[4], buf[3], buf[2], buf[1], buf[0]); - } else - snprintf(fc_host->serial_number, - sizeof(fc_host->serial_number), "Unknown"); snprintf(fc_host->manufacturer, sizeof(fc_host->manufacturer), "%s", "Cavium Inc.");