[PATCH v2 03/18] cxl/pci: cxl_hdm_decode_init: Move comment

Robert Richter posted 18 patches 1 year ago
There is a newer version of this series
[PATCH v2 03/18] cxl/pci: cxl_hdm_decode_init: Move comment
Posted by Robert Richter 1 year ago
The comment applies to the check, move it there.

Signed-off-by: Robert Richter <rrichter@amd.com>
---
 drivers/cxl/core/pci.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/cxl/core/pci.c b/drivers/cxl/core/pci.c
index f8e22bc278c3..c49efc419285 100644
--- a/drivers/cxl/core/pci.c
+++ b/drivers/cxl/core/pci.c
@@ -419,6 +419,15 @@ int cxl_hdm_decode_init(struct cxl_dev_state *cxlds, struct cxl_hdm *cxlhdm,
 	if (!hdm)
 		return -ENODEV;
 
+	/*
+	 * Per CXL 2.0 Section 8.1.3.8.3 and 8.1.3.8.4 DVSEC CXL Range 1 Base
+	 * [High,Low] when HDM operation is enabled the range register values
+	 * are ignored by the device, but the spec also recommends matching the
+	 * DVSEC Range 1,2 to HDM Decoder Range 0,1. So, non-zero info->ranges
+	 * are expected even though Linux does not require or maintain that
+	 * match. If at least one DVSEC range is enabled and allowed, skip HDM
+	 * Decoder Capability Enable.
+	 */
 	if (!info->mem_enabled) {
 		rc = devm_cxl_enable_hdm(&port->dev, cxlhdm);
 		if (rc)
@@ -454,15 +463,6 @@ int cxl_hdm_decode_init(struct cxl_dev_state *cxlds, struct cxl_hdm *cxlhdm,
 		return -ENXIO;
 	}
 
-	/*
-	 * Per CXL 2.0 Section 8.1.3.8.3 and 8.1.3.8.4 DVSEC CXL Range 1 Base
-	 * [High,Low] when HDM operation is enabled the range register values
-	 * are ignored by the device, but the spec also recommends matching the
-	 * DVSEC Range 1,2 to HDM Decoder Range 0,1. So, non-zero info->ranges
-	 * are expected even though Linux does not require or maintain that
-	 * match. If at least one DVSEC range is enabled and allowed, skip HDM
-	 * Decoder Capability Enable.
-	 */
 	return 0;
 }
 EXPORT_SYMBOL_NS_GPL(cxl_hdm_decode_init, "CXL");
-- 
2.39.5
Re: [PATCH v2 03/18] cxl/pci: cxl_hdm_decode_init: Move comment
Posted by Gregory Price 1 year ago
On Fri, Feb 07, 2025 at 04:37:38PM +0100, Robert Richter wrote:
> The comment applies to the check, move it there.
> 
> Signed-off-by: Robert Richter <rrichter@amd.com>

Reviewed-by: Gregory Price <gourry@gourry.net>