[PATCH v19 05/14] cxl: Rename find_cxl_port() to find_cxl_port_by_dport()

[Terry Bowman <terry.bowman@amd.com>]

From: Dan Williams <djbw@kernel.org>

find_cxl_port() and find_cxl_port_by_uport() are internal port lookup
functions that search the CXL bus by dport and uport respectively, but
their names do not make the lookup method clear.

Rename find_cxl_port() to find_cxl_port_by_dport() to make the lookup
method explicit and consistent with find_cxl_port_by_uport(). Both
functions remain static to port.c; the upcoming patch that adds the
first cross-file caller will widen their scope.

Make the same naming change to static helper __find_cxl_port_by_dport().

Co-developed-by: Terry Bowman <terry.bowman@amd.com>
Signed-off-by: Terry Bowman <terry.bowman@amd.com>
Signed-off-by: Dan Williams <djbw@kernel.org>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>

---

Changes in v18 -> v19:
- Update commit message imperative to include __find_cxl_port_by_dport()
rename.

Changes in v17 -> v18:
- New commit
---
 drivers/cxl/core/port.c | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/drivers/cxl/core/port.c b/drivers/cxl/core/port.c
index f90f899c31d07..cadb51f70f854 100644
--- a/drivers/cxl/core/port.c
+++ b/drivers/cxl/core/port.c
@@ -1379,7 +1379,7 @@ static int match_port_by_dport(struct device *dev, const void *data)
 	return dport != NULL;
 }
 
-static struct cxl_port *__find_cxl_port(struct cxl_find_port_ctx *ctx)
+static struct cxl_port *__find_cxl_port_by_dport(struct cxl_find_port_ctx *ctx)
 {
 	struct device *dev;
 
@@ -1392,8 +1392,16 @@ static struct cxl_port *__find_cxl_port(struct cxl_find_port_ctx *ctx)
 	return NULL;
 }
 
-static struct cxl_port *find_cxl_port(struct device *dport_dev,
-				      struct cxl_dport **dport)
+/**
+ * find_cxl_port_by_dport - find a cxl_port by one of its targets
+ * @dport_dev: device representing the dport target
+ * @dport: optional output of the 'struct cxl_dport' companion of the @dport_dev
+ *
+ * Return a 'struct cxl_port' with an elevated reference if found. Use
+ * __free(put_cxl_port) to release.
+ */
+static struct cxl_port *find_cxl_port_by_dport(struct device *dport_dev,
+					       struct cxl_dport **dport)
 {
 	struct cxl_find_port_ctx ctx = {
 		.dport_dev = dport_dev,
@@ -1401,7 +1409,7 @@ static struct cxl_port *find_cxl_port(struct device *dport_dev,
 	};
 	struct cxl_port *port;
 
-	port = __find_cxl_port(&ctx);
+	port = __find_cxl_port_by_dport(&ctx);
 	return port;
 }
 
@@ -1895,14 +1903,14 @@ EXPORT_SYMBOL_NS_GPL(devm_cxl_enumerate_ports, "CXL");
 struct cxl_port *cxl_pci_find_port(struct pci_dev *pdev,
 				   struct cxl_dport **dport)
 {
-	return find_cxl_port(pdev->dev.parent, dport);
+	return find_cxl_port_by_dport(pdev->dev.parent, dport);
 }
 EXPORT_SYMBOL_NS_GPL(cxl_pci_find_port, "CXL");
 
 struct cxl_port *cxl_mem_find_port(struct cxl_memdev *cxlmd,
 				   struct cxl_dport **dport)
 {
-	return find_cxl_port(grandparent(&cxlmd->dev), dport);
+	return find_cxl_port_by_dport(grandparent(&cxlmd->dev), dport);
 }
 EXPORT_SYMBOL_NS_GPL(cxl_mem_find_port, "CXL");
 
-- 
2.34.1