Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Received-SPF: Pass (protection.outlook.com: domain of amd.com designates
 165.204.84.17 as permitted sender) receiver=protection.outlook.com;
 client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C
From:   Terry Bowman <terry.bowman@amd.com>
To:     <alison.schofield@intel.com>, <vishal.l.verma@intel.com>,
        <ira.weiny@intel.com>, <bwidawsk@kernel.org>,
        <dan.j.williams@intel.com>, <dave.jiang@intel.com>,
        <Jonathan.Cameron@huawei.com>, <linux-cxl@vger.kernel.org>
CC:     <terry.bowman@amd.com>, <rrichter@amd.com>,
        <linux-kernel@vger.kernel.org>, <bhelgaas@google.com>
Subject: [PATCH v4 06/23] cxl/acpi: Moving add_host_bridge_uport() around
Date:   Tue, 23 May 2023 18:21:57 -0500
Message-ID: <20230523232214.55282-7-terry.bowman@amd.com>
In-Reply-To: <20230523232214.55282-1-terry.bowman@amd.com>
References: <20230523232214.55282-1-terry.bowman@amd.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Type: text/plain
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 May 2023 23:24:09.6519
 (UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: d273a5fc-299f-40db-a135-08db5be4cfac
X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d
X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com]
X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT017.eop-nam11.prod.protection.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Anonymous
X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem
X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH2PR12MB4293
X-Spam-Status: No, score=-1.1 required=5.0 tests=BAYES_00,DKIM_SIGNED,
        DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO,
        RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE,
        T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=no autolearn_force=no
        version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
        lindbergh.monkeyblade.net
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

From: Robert Richter <rrichter@amd.com>

Just moving code to reorder functions to later share cxl_get_chbs()
with add_host_bridge_uport().

This makes changes in the next patch visible. No other changes at all.

Signed-off-by: Robert Richter <rrichter@amd.com>
Signed-off-by: Terry Bowman <terry.bowman@amd.com>
---
 drivers/cxl/acpi.c | 90 +++++++++++++++++++++++-----------------------
 1 file changed, 45 insertions(+), 45 deletions(-)

diff --git a/drivers/cxl/acpi.c b/drivers/cxl/acpi.c
index 39227070da9b..4fd9fe32f830 100644
--- a/drivers/cxl/acpi.c
+++ b/drivers/cxl/acpi.c
@@ -327,51 +327,6 @@ __mock struct acpi_device *to_cxl_host_bridge(struct device *host,
 	return NULL;
 }
 
-/*
- * A host bridge is a dport to a CFMWS decode and it is a uport to the
- * dport (PCIe Root Ports) in the host bridge.
- */
-static int add_host_bridge_uport(struct device *match, void *arg)
-{
-	struct cxl_port *root_port = arg;
-	struct device *host = root_port->dev.parent;
-	struct acpi_device *hb = to_cxl_host_bridge(host, match);
-	struct acpi_pci_root *pci_root;
-	struct cxl_dport *dport;
-	struct cxl_port *port;
-	struct device *bridge;
-	int rc;
-
-	if (!hb)
-		return 0;
-
-	pci_root = acpi_pci_find_root(hb->handle);
-	bridge = pci_root->bus->bridge;
-	dport = cxl_find_dport_by_dev(root_port, bridge);
-	if (!dport) {
-		dev_dbg(host, "host bridge expected and not found\n");
-		return 0;
-	}
-
-	if (dport->rch) {
-		dev_info(bridge, "host supports CXL (restricted)\n");
-		return 0;
-	}
-
-	rc = devm_cxl_register_pci_bus(host, bridge, pci_root->bus);
-	if (rc)
-		return rc;
-
-	port = devm_cxl_add_port(host, bridge, dport->component_reg_phys,
-				 dport);
-	if (IS_ERR(port))
-		return PTR_ERR(port);
-
-	dev_info(bridge, "host supports CXL\n");
-
-	return 0;
-}
-
 struct cxl_chbs_context {
 	unsigned long long uid;
 	resource_size_t base;
@@ -464,6 +419,51 @@ static int add_host_bridge_dport(struct device *match, void *arg)
 	return 0;
 }
 
+/*
+ * A host bridge is a dport to a CFMWS decode and it is a uport to the
+ * dport (PCIe Root Ports) in the host bridge.
+ */
+static int add_host_bridge_uport(struct device *match, void *arg)
+{
+	struct cxl_port *root_port = arg;
+	struct device *host = root_port->dev.parent;
+	struct acpi_device *hb = to_cxl_host_bridge(host, match);
+	struct acpi_pci_root *pci_root;
+	struct cxl_dport *dport;
+	struct cxl_port *port;
+	struct device *bridge;
+	int rc;
+
+	if (!hb)
+		return 0;
+
+	pci_root = acpi_pci_find_root(hb->handle);
+	bridge = pci_root->bus->bridge;
+	dport = cxl_find_dport_by_dev(root_port, bridge);
+	if (!dport) {
+		dev_dbg(host, "host bridge expected and not found\n");
+		return 0;
+	}
+
+	if (dport->rch) {
+		dev_info(bridge, "host supports CXL (restricted)\n");
+		return 0;
+	}
+
+	rc = devm_cxl_register_pci_bus(host, bridge, pci_root->bus);
+	if (rc)
+		return rc;
+
+	port = devm_cxl_add_port(host, bridge, dport->component_reg_phys,
+				 dport);
+	if (IS_ERR(port))
+		return PTR_ERR(port);
+
+	dev_info(bridge, "host supports CXL\n");
+
+	return 0;
+}
+
 static int add_root_nvdimm_bridge(struct device *match, void *data)
 {
 	struct cxl_decoder *cxld;
-- 
2.34.1