Commit d90acdf4 authored by Robert Richter's avatar Robert Richter Committed by Dave Jiang
Browse files

cxl/region: Add a dev_err() on missing target list entries 



Broken target lists are hard to discover as the driver fails at a
later initialization stage. Add an error message for this.

Example log messages:

  cxl_mem mem1: failed to find endpoint6:0000:e0:01.3 in target list of decoder1.1
  cxl_port endpoint6: failed to register decoder6.0: -6
  cxl_port endpoint6: probe: 0

Signed-off-by: default avatarRobert Richter <rrichter@amd.com>
Reviewed-by: default avatarGregory Price <gourry@gourry.net>
Reviewed-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: default avatarDave Jiang <dave.jiang@intel.com>
Reviewed-by: default avatarDan Williams <dan.j.williams@intel.com>
Reviewed-by: default avatarAlison Schofield <alison.schofield@intel.com>
Reviewed-by: default avatar"Fabio M. De Francesco" <fabio.m.de.francesco@linux.intel.com>
Tested-by: default avatarGregory Price <gourry@gourry.net>
Acked-by: default avatarDan Williams <dan.j.williams@intel.com>
Link: https://patch.msgid.link/20250509150700.2817697-14-rrichter@amd.com


Signed-off-by: default avatarDave Jiang <dave.jiang@intel.com>
parent 9efefa1c

drivers/cxl/core/region.c

+7 −0
Original line number Diff line number Diff line
@@ -1809,6 +1809,13 @@ static int find_pos_and_ways(struct cxl_port *port, struct range *range, 
	}

	put_device(dev);



	if (rc)

		dev_err(port->uport_dev,

			"failed to find %s:%s in target list of %s\n",

			dev_name(&port->dev),

			dev_name(port->parent_dport->dport_dev),

			dev_name(&cxlsd->cxld.dev));



	return rc;

}