linux-kernel - [PATCH] usb: musb: add printf attribute to log function

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Message-Id: <20201221162547.3756889-1-trix@redhat.com>
Date:   Mon, 21 Dec 2020 08:25:47 -0800
From:   trix@...hat.com
To:     b-liu@...com, gregkh@...uxfoundation.org
Cc:     linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        Tom Rix <trix@...hat.com>
Subject: [PATCH] usb: musb: add printf attribute to log function

From: Tom Rix <trix@...hat.com>

Attributing the function allows the compiler to more thoroughly
check the use of the function with -Wformat and similar flags.

Signed-off-by: Tom Rix <trix@...hat.com>
---
 drivers/usb/musb/musb_debug.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/musb/musb_debug.h b/drivers/usb/musb/musb_debug.h
index e5b3506c7b3f..dfc0d02695fa 100644
--- a/drivers/usb/musb/musb_debug.h
+++ b/drivers/usb/musb/musb_debug.h
@@ -17,6 +17,7 @@
 #define INFO(fmt, args...) yprintk(KERN_INFO, fmt, ## args)
 #define ERR(fmt, args...) yprintk(KERN_ERR, fmt, ## args)
 
+__printf(2, 3)
 void musb_dbg(struct musb *musb, const char *fmt, ...);
 
 #ifdef CONFIG_DEBUG_FS
-- 
2.27.0