[PATCH v3 10/13] cxl/pci: Drop @info argument to cxl_hdm_decode_init()

From: Dan Williams <dan.j.williams@intel.com>
To: linux-cxl@vger.kernel.org
Cc: Ira Weiny <ira.weiny@intel.com>,
	Jonathan Cameron <Jonathan.Cameron@huawei.com>
Subject: [PATCH v3 10/13] cxl/pci: Drop @info argument to cxl_hdm_decode_init()
Date: Wed, 18 May 2022 16:35:06 -0700	[thread overview]
Message-ID: <165291690612.1426646.7866084245521113414.stgit@dwillia2-xfh> (raw)
In-Reply-To: <165291684910.1426646.8615474651213855015.stgit@dwillia2-xfh>

Now that nothing external to cxl_hdm_decode_init() considers
'struct cxl_endpoint_dvec_info' move it internal to
cxl_hdm_decode_init().

Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/cxl/core/pci.c        |   15 +++++++--------
 drivers/cxl/cxlpci.h          |    4 +---
 drivers/cxl/mem.c             |    3 +--
 tools/testing/cxl/test/mock.c |    9 +++------
 4 files changed, 12 insertions(+), 19 deletions(-)

diff --git a/drivers/cxl/core/pci.c b/drivers/cxl/core/pci.c
index 0fbda1a1ca1b..7d2238edc379 100644
--- a/drivers/cxl/core/pci.c
+++ b/drivers/cxl/core/pci.c
@@ -234,14 +234,13 @@ static bool __cxl_hdm_decode_init(struct cxl_dev_state *cxlds,
 /**
  * cxl_hdm_decode_init() - Setup HDM decoding for the endpoint
  * @cxlds: Device state
- * @info: DVSEC Range cached enumeration
  *
  * Try to enable the endpoint's HDM Decoder Capability
  */
-int cxl_hdm_decode_init(struct cxl_dev_state *cxlds,
-			struct cxl_endpoint_dvsec_info *info)
+int cxl_hdm_decode_init(struct cxl_dev_state *cxlds)
 {
 	struct pci_dev *pdev = to_pci_dev(cxlds->dev);
+	struct cxl_endpoint_dvsec_info info = { 0 };
 	int hdm_count, rc, i, ranges = 0;
 	struct device *dev = &pdev->dev;
 	int d = cxlds->cxl_dvsec;
@@ -281,8 +280,8 @@ int cxl_hdm_decode_init(struct cxl_dev_state *cxlds,
 		return rc;
 	}
 
-	info->mem_enabled = FIELD_GET(CXL_DVSEC_MEM_ENABLE, ctrl);
-	if (!info->mem_enabled)
+	info.mem_enabled = FIELD_GET(CXL_DVSEC_MEM_ENABLE, ctrl);
+	if (!info.mem_enabled)
 		return 0;
 
 	for (i = 0; i < hdm_count; i++) {
@@ -317,7 +316,7 @@ int cxl_hdm_decode_init(struct cxl_dev_state *cxlds,
 
 		base |= temp & CXL_DVSEC_MEM_BASE_LOW_MASK;
 
-		info->dvsec_range[i] = (struct range) {
+		info.dvsec_range[i] = (struct range) {
 			.start = base,
 			.end = base + size - 1
 		};
@@ -326,13 +325,13 @@ int cxl_hdm_decode_init(struct cxl_dev_state *cxlds,
 			ranges++;
 	}
 
-	info->ranges = ranges;
+	info.ranges = ranges;
 
 	/*
 	 * If DVSEC ranges are being used instead of HDM decoder registers there
 	 * is no use in trying to manage those.
 	 */
-	if (!__cxl_hdm_decode_init(cxlds, info)) {
+	if (!__cxl_hdm_decode_init(cxlds, &info)) {
 		dev_err(dev,
 			"Legacy range registers configuration prevents HDM operation.\n");
 		return -EBUSY;
diff --git a/drivers/cxl/cxlpci.h b/drivers/cxl/cxlpci.h
index 202fdaa8d293..53cd34f8813c 100644
--- a/drivers/cxl/cxlpci.h
+++ b/drivers/cxl/cxlpci.h
@@ -73,7 +73,5 @@ static inline resource_size_t cxl_regmap_to_base(struct pci_dev *pdev,
 
 int devm_cxl_port_enumerate_dports(struct cxl_port *port);
 struct cxl_dev_state;
-struct cxl_endpoint_dvsec_info;
-int cxl_hdm_decode_init(struct cxl_dev_state *cxlds,
-			struct cxl_endpoint_dvsec_info *info);
+int cxl_hdm_decode_init(struct cxl_dev_state *cxlds);
 #endif /* __CXL_PCI_H__ */
diff --git a/drivers/cxl/mem.c b/drivers/cxl/mem.c
index 2a5dc92d566f..8ce89d128e36 100644
--- a/drivers/cxl/mem.c
+++ b/drivers/cxl/mem.c
@@ -54,7 +54,6 @@ static void enable_suspend(void *data)
 static int cxl_mem_probe(struct device *dev)
 {
 	struct cxl_memdev *cxlmd = to_cxl_memdev(dev);
-	struct cxl_endpoint_dvsec_info info = { 0 };
 	struct cxl_dev_state *cxlds = cxlmd->cxlds;
 	struct cxl_port *parent_port;
 	int rc;
@@ -95,7 +94,7 @@ static int cxl_mem_probe(struct device *dev)
 	if (rc)
 		return rc;
 
-	rc = cxl_hdm_decode_init(cxlds, &info);
+	rc = cxl_hdm_decode_init(cxlds);
 	if (rc)
 		return rc;
 
diff --git a/tools/testing/cxl/test/mock.c b/tools/testing/cxl/test/mock.c
index ddf0e7dd9249..45ffbb8f519a 100644
--- a/tools/testing/cxl/test/mock.c
+++ b/tools/testing/cxl/test/mock.c
@@ -208,16 +208,13 @@ int __wrap_cxl_await_media_ready(struct cxl_dev_state *cxlds)
 }
 EXPORT_SYMBOL_NS_GPL(__wrap_cxl_await_media_ready, CXL);
 
-int __wrap_cxl_hdm_decode_init(struct cxl_dev_state *cxlds,
-				struct cxl_endpoint_dvsec_info *info)
+bool __wrap_cxl_hdm_decode_init(struct cxl_dev_state *cxlds)
 {
 	int rc = 0, index;
 	struct cxl_mock_ops *ops = get_cxl_mock_ops(&index);
 
-	if (ops && ops->is_mock_dev(cxlds->dev))
-		info->mem_enabled = 1;
-	else
-		rc = cxl_hdm_decode_init(cxlds, info);
+	if (!ops || !ops->is_mock_dev(cxlds->dev))
+		rc = cxl_hdm_decode_init(cxlds);
 	put_cxl_mock_ops(index);
 
 	return rc;

