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From: Quanquan Cao <caoqq@fujitsu.com>
To: dave.jiang@intel.com, vishal.l.verma@intel.com
Cc: linux-cxl@vger.kernel.org, Quanquan Cao <caoqq@fujitsu.com>
Subject: [PATCH] cxl/mbox: Code readability improvement
Date: Tue, 30 Jan 2024 13:58:44 +0800	[thread overview]
Message-ID: <20240130055844.19811-1-caoqq@fujitsu.com> (raw)

"send_cmd->id == 0" indicates an invalid command, so replace 0
to CXL_MEM_COMMAND_ID_INVALID to make it easy for reading/understanding.

Signed-off-by: Quanquan Cao <caoqq@fujitsu.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 27166a411705..2e5ee05011d6 100644
--- a/drivers/cxl/core/mbox.c
+++ b/drivers/cxl/core/mbox.c
@@ -485,7 +485,8 @@ static int cxl_validate_cmd_from_user(struct cxl_mbox_cmd *mbox_cmd,
 	struct cxl_mem_command mem_cmd;
 	int rc;
 
-	if (send_cmd->id == 0 || send_cmd->id >= CXL_MEM_COMMAND_ID_MAX)
+	if (send_cmd->id == CXL_MEM_COMMAND_ID_INVALID ||
+	    send_cmd->id >= CXL_MEM_COMMAND_ID_MAX)
 		return -ENOTTY;
 
 	/*
-- 
2.43.0


             reply	other threads:[~2024-01-30  5:59 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-30  5:58 Quanquan Cao [this message]
2024-01-30  6:59 ` [PATCH] cxl/mbox: Code readability improvement Dan Williams
2024-01-30  8:28   ` Cao, Quanquan/曹 全全

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