linux-kernel - Re: [PATCH v1 28/29] cxl/region: Show message on broken target list

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Message-ID: <Z3200KvAGaoW1KcS@gourry-fedora-PF4VCD3F>
Date: Tue, 7 Jan 2025 18:12:16 -0500
From: Gregory Price <gourry@...rry.net>
To: Robert Richter <rrichter@....com>
Cc: Alison Schofield <alison.schofield@...el.com>,
	Vishal Verma <vishal.l.verma@...el.com>,
	Ira Weiny <ira.weiny@...el.com>,
	Dan Williams <dan.j.williams@...el.com>,
	Jonathan Cameron <jonathan.cameron@...wei.com>,
	Dave Jiang <dave.jiang@...el.com>,
	Davidlohr Bueso <dave@...olabs.net>, linux-cxl@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"Fabio M. De Francesco" <fabio.m.de.francesco@...ux.intel.com>,
	Terry Bowman <terry.bowman@....com>
Subject: Re: [PATCH v1 28/29] cxl/region: Show message on broken target list

On Tue, Jan 07, 2025 at 03:10:14PM +0100, Robert Richter wrote:
> Broken target lists are hard to discover as the driver fails at a
> later initialization stage. Add an error message for this.
> 
> Signed-off-by: Robert Richter <rrichter@....com>

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

> ---
>  drivers/cxl/core/region.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c
> index 775450a1a887..2af3b6c14f46 100644
> --- a/drivers/cxl/core/region.c
> +++ b/drivers/cxl/core/region.c
> @@ -1870,6 +1870,13 @@ 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;
>  }
>  
> -- 
> 2.39.5
>