linux-kernel - [PATCH 22/30] usb: typec: tcpm: fusb302: Use 'gnu

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Date:   Fri,  3 Jul 2020 18:41:40 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     gregkh@...uxfoundation.org, linux-usb@...r.kernel.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Lee Jones <lee.jones@...aro.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Yueyao Zhu <yueyao.zhu@...il.com>
Subject: [PATCH 22/30] usb: typec: tcpm: fusb302: Use 'gnu_printf' format notation

Fixes the following W=1 kernel build warning(s):

 drivers/usb/typec/tcpm/fusb302.c: In function ‘fusb302_log’:
 drivers/usb/typec/tcpm/fusb302.c:186:2: warning: function ‘fusb302_log’ might be a candidate for ‘gnu_printf’ format attribute [-Wsuggest-attribute=format]
 186 | _fusb302_log(chip, fmt, args);
 | ^~~~~~~~~~~~

Cc: Guenter Roeck <linux@...ck-us.net>
Cc: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Cc: Yueyao Zhu <yueyao.zhu@...il.com>
Signed-off-by: Lee Jones <lee.jones@...aro.org>
---
 drivers/usb/typec/tcpm/fusb302.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/typec/tcpm/fusb302.c b/drivers/usb/typec/tcpm/fusb302.c
index b28facece43c4..99562cc65ca69 100644
--- a/drivers/usb/typec/tcpm/fusb302.c
+++ b/drivers/usb/typec/tcpm/fusb302.c
@@ -178,6 +178,7 @@ static void _fusb302_log(struct fusb302_chip *chip, const char *fmt,
 	mutex_unlock(&chip->logbuffer_lock);
 }
 
+__printf(2, 3)
 static void fusb302_log(struct fusb302_chip *chip, const char *fmt, ...)
 {
 	va_list args;
-- 
2.25.1