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

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Date:   Thu, 19 Jan 2023 14:04:50 +0100
From:   Robert Richter <rrichter@....com>
To:     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>,
        Robert Richter <rrichter@....com>, <linux-cxl@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] cxl/mbox: Add debug messages for supported mailbox commands

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>
---
 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
-- 
2.30.2