linux-kernel - Re: [PATCH] cxl/mbox: Add debug messages for supported mailbox commands

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Message-ID: <099e9e5b-88dd-ae5f-307d-6ea9f16586f1@intel.com>
Date:   Thu, 26 Jan 2023 16:24:43 -0700
From:   Dave Jiang <dave.jiang@...el.com>
To:     Robert Richter <rrichter@....com>,
        Alison Schofield <alison.schofield@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        Ira Weiny <ira.weiny@...el.com>,
        Ben Widawsky <bwidawsk@...nel.org>,
        Dan Williams <dan.j.williams@...el.com>
Cc:     Jonathan Cameron <jonathan.cameron@...wei.com>,
        linux-cxl@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] cxl/mbox: Add debug messages for supported mailbox
 commands



On 1/19/23 6:04 AM, Robert Richter wrote:
> Only unsupported mailbox commands are reported in debug messages. A
> list of supported commands is useful too. Change debug messages to
> also report the opcodes of supported commands.
> 
> On that occasion also add missing trailing newlines.
> 
> Signed-off-by: Robert Richter <rrichter@....com>

Reviewed-by: Dave Jiang <dave.jiang@...el.com>

> ---
>   drivers/cxl/core/mbox.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c
> index a48ade466d6a..ffa9f84c2dce 100644
> --- a/drivers/cxl/core/mbox.c
> +++ b/drivers/cxl/core/mbox.c
> @@ -629,11 +629,12 @@ static void cxl_walk_cel(struct cxl_dev_state *cxlds, size_t size, u8 *cel)
>   
>   		if (!cmd) {
>   			dev_dbg(cxlds->dev,
> -				"Opcode 0x%04x unsupported by driver", opcode);
> +				"Opcode 0x%04x unsupported by driver\n", opcode);
>   			continue;
>   		}
>   
>   		set_bit(cmd->info.id, cxlds->enabled_cmds);
> +		dev_dbg(cxlds->dev, "Opcode 0x%04x supported by driver\n", opcode);
>   	}
>   }
>   
> 
> base-commit: 1b929c02afd37871d5afb9d498426f83432e71c2