cxl/pci: Clarify devm host for memdev relative setup

It is all too easy to get confused about @dev usage in the CXL driver
stack. Before adding a new cxl_pci_probe() setup operation that has a
devm lifetime dependent on @cxlds->dev binding, but also references
@cxlmd->dev, and prints messages, rework the devm_cxl_add_memdev() and
cxl_memdev_setup_fw_upload() function signatures to make this
distinction explicit. I.e. pass in the devm context as an @host argument
rather than infer it from other objects.

This is in preparation for adding a devm_cxl_sanitize_setup_notifier().

Note the whitespace fixup near the change of the devm_cxl_add_memdev()
signature. That uncaught typo originated in the patch that added
cxl_memdev_security_init().

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

1 files changed, 8 insertions, 8 deletions

diff --git a/drivers/cxl/core/memdev.c b/drivers/cxl/core/memdev.c
index 6efe4e2a2cf5..63353d990374 100644
--- a/drivers/cxl/core/memdev.c
+++ b/drivers/cxl/core/memdev.c
@@ -960,12 +960,12 @@ static const struct fw_upload_ops cxl_memdev_fw_ops = {
         .cleanup = cxl_fw_cleanup,
 };
 
-static void devm_cxl_remove_fw_upload(void *fwl)
+static void cxl_remove_fw_upload(void *fwl)
 {
 	firmware_upload_unregister(fwl);
 }
 
-int cxl_memdev_setup_fw_upload(struct cxl_memdev_state *mds)
+int devm_cxl_setup_fw_upload(struct device *host, struct cxl_memdev_state *mds)
 {
 	struct cxl_dev_state *cxlds = &mds->cxlds;
 	struct device *dev = &cxlds->cxlmd->dev;
@@ -978,10 +978,9 @@ int cxl_memdev_setup_fw_upload(struct cxl_memdev_state *mds)
 				       &cxl_memdev_fw_ops, mds);
 	if (IS_ERR(fwl))
 		return PTR_ERR(fwl);
-
-	return devm_add_action_or_reset(cxlds->dev, devm_cxl_remove_fw_upload, fwl);
+	return devm_add_action_or_reset(host, cxl_remove_fw_upload, fwl);
 }
-EXPORT_SYMBOL_NS_GPL(cxl_memdev_setup_fw_upload, CXL);
+EXPORT_SYMBOL_NS_GPL(devm_cxl_setup_fw_upload, CXL);
 
 static const struct file_operations cxl_memdev_fops = {
 	.owner = THIS_MODULE,
@@ -1019,9 +1018,10 @@ static int cxl_memdev_security_init(struct cxl_memdev *cxlmd)
 	}
 
 	return devm_add_action_or_reset(cxlds->dev, put_sanitize, mds);
- }
+}
 
-struct cxl_memdev *devm_cxl_add_memdev(struct cxl_dev_state *cxlds)
+struct cxl_memdev *devm_cxl_add_memdev(struct device *host,
+				       struct cxl_dev_state *cxlds)
 {
 	struct cxl_memdev *cxlmd;
 	struct device *dev;
@@ -1053,7 +1053,7 @@ struct cxl_memdev *devm_cxl_add_memdev(struct cxl_dev_state *cxlds)
 	if (rc)
 		goto err;
 
-	rc = devm_add_action_or_reset(cxlds->dev, cxl_memdev_unregister, cxlmd);
+	rc = devm_add_action_or_reset(host, cxl_memdev_unregister, cxlmd);
 	if (rc)
 		return ERR_PTR(rc);
 	return cxlmd;