[RFC PATCH 1/7] cxl/core: Use is_endpoint_decoder

[Ben Widawsky <ben.widawsky@intel.com>]

Save some characters and directly check decoder type rather than port
type. There's no need to check if the port is an endpoint port since we
already know the decoder, after alloc, has a specified type.

Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>
---
 drivers/cxl/core/hdm.c  | 2 +-
 drivers/cxl/core/port.c | 2 +-
 drivers/cxl/cxl.h       | 1 +
 3 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/cxl/core/hdm.c b/drivers/cxl/core/hdm.c
index a9ae8620701f..808b19215425 100644
--- a/drivers/cxl/core/hdm.c
+++ b/drivers/cxl/core/hdm.c
@@ -190,7 +190,7 @@ static int init_hdm_decoder(struct cxl_port *port, struct cxl_decoder *cxld,
 	else
 		cxld->target_type = CXL_DECODER_ACCELERATOR;
 
-	if (is_cxl_endpoint(to_cxl_port(cxld->dev.parent)))
+	if (is_endpoint_decoder(&cxld->dev))
 		return 0;
 
 	target_list.value =
diff --git a/drivers/cxl/core/port.c b/drivers/cxl/core/port.c
index 1a0c3d757a29..bda40e91af2b 100644
--- a/drivers/cxl/core/port.c
+++ b/drivers/cxl/core/port.c
@@ -293,7 +293,7 @@ static const struct device_type cxl_decoder_root_type = {
 	.groups = cxl_decoder_root_attribute_groups,
 };
 
-static bool is_endpoint_decoder(struct device *dev)
+bool is_endpoint_decoder(struct device *dev)
 {
 	return dev->type == &cxl_decoder_endpoint_type;
 }
diff --git a/drivers/cxl/cxl.h b/drivers/cxl/cxl.h
index 4c1963c0c8d2..4a93d409328f 100644
--- a/drivers/cxl/cxl.h
+++ b/drivers/cxl/cxl.h
@@ -357,6 +357,7 @@ struct cxl_dport *cxl_find_dport_by_dev(struct cxl_port *port,
 
 struct cxl_decoder *to_cxl_decoder(struct device *dev);
 bool is_root_decoder(struct device *dev);
+bool is_endpoint_decoder(struct device *dev);
 bool is_cxl_decoder(struct device *dev);
 struct cxl_decoder *cxl_root_decoder_alloc(struct cxl_port *port,
 					   unsigned int nr_targets);
-- 
2.35.1