linux-kernel - [PATCH] cxl/pci: Show opcode in debug messages when sending a command

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 3 Jan 2023 22:01:50 +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:     Robert Richter <rrichter@....com>, <linux-cxl@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] cxl/pci: Show opcode in debug messages when sending a command

For debugging it is very helpful to see which commands are sent. Add
it to the debug message.

Signed-off-by: Robert Richter <rrichter@....com>
---
 drivers/cxl/pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cxl/pci.c b/drivers/cxl/pci.c
index 33083a522fd1..316089a393d0 100644
--- a/drivers/cxl/pci.c
+++ b/drivers/cxl/pci.c
@@ -162,7 +162,7 @@ static int __cxl_pci_mbox_send_cmd(struct cxl_dev_state *cxlds,
 	writeq(cmd_reg, cxlds->regs.mbox + CXLDEV_MBOX_CMD_OFFSET);
 
 	/* #4 */
-	dev_dbg(dev, "Sending command\n");
+	dev_dbg(dev, "Sending command: 0x%04x\n", mbox_cmd->opcode);
 	writel(CXLDEV_MBOX_CTRL_DOORBELL,
 	       cxlds->regs.mbox + CXLDEV_MBOX_CTRL_OFFSET);
 
-- 
2.30.2