linux-kernel - [PATCH] staging: pi433: add comment to rx

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Message-ID: <20211222093626.GA13332@localhost.localdomain>
Date:   Wed, 22 Dec 2021 22:36:26 +1300
From:   Paulo Miguel Almeida <paulo.miguel.almeida.rodenas@...il.com>
To:     gregkh@...uxfoundation.org, realwakka@...il.com,
        paulo.miguel.almeida.rodenas@...il.com
Cc:     linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: [PATCH] staging: pi433: add comment to rx_lock mutex definition

Checkpatch reports: CHECK: struct mutex definition without comment.
Fix this by documenting what rx_mutex struct is used for in pi433 driver.

Signed-off-by: Paulo Miguel Almeida <paulo.miguel.almeida.rodenas@...il.com>
---
 drivers/staging/pi433/pi433_if.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index 29bd37669059..aa0ecb3788c6 100644
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c
@@ -92,6 +92,7 @@ struct pi433_device {
 	u32			rx_bytes_to_drop;
 	u32			rx_bytes_dropped;
 	unsigned int		rx_position;
+	/* rx read and config operations can only be served one at the time */
 	struct mutex		rx_lock;
 	wait_queue_head_t	rx_wait_queue;
 
-- 
2.25.4