diff options
| author | Robert Richter <rrichter@amd.com> | 2025-05-09 17:06:58 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-07-06 11:01:32 +0200 |
| commit | b3dc5c735a754142831f705068fcfa77551724ff (patch) | |
| tree | 6bf4f1f198ad922a0698ee18c16b01f6d3f6db39 | |
| parent | 3a0f33c420c5fa8cc3c95d396f4d3828a18e1890 (diff) | |
cxl/region: Add a dev_err() on missing target list entries
[ Upstream commit d90acdf49e18029cfe4194475c45ef143657737a ]
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: Robert Richter <rrichter@amd.com>
Reviewed-by: Gregory Price <gourry@gourry.net>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: "Fabio M. De Francesco" <fabio.m.de.francesco@linux.intel.com>
Tested-by: Gregory Price <gourry@gourry.net>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Link: https://patch.msgid.link/20250509150700.2817697-14-rrichter@amd.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/cxl/core/region.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c index a0d6e8d7f42c..f5429666822f 100644 --- a/drivers/cxl/core/region.c +++ b/drivers/cxl/core/region.c @@ -1781,6 +1781,13 @@ 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; } |