linux-kernel - [PATCH] staging: bcm2835-audio: fix empty-body warning

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Date:   Wed,  1 Feb 2017 17:22:25 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Stephen Warren <swarren@...dotorg.org>,
        Lee Jones <lee@...nel.org>, Eric Anholt <eric@...olt.net>,
        Florian Fainelli <f.fainelli@...il.com>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com,
        Michael Zoran <mzoran@...wfest.net>,
        devel@...verdev.osuosl.org, linux-rpi-kernel@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] staging: bcm2835-audio: fix empty-body warning

gcc-7 warns about debug statements being left out here:

drivers/staging/bcm2835-audio/bcm2835-vchiq.c: In function 'bcm2835_audio_set_ctls':
drivers/staging/bcm2835-audio/bcm2835-vchiq.c:572:54: error: suggest braces around empty body in an 'else' statement [-Werror=empty-body]

It's better to use no_printk(), which has the added advantage of checking
the format strings.

Fixes: 23b028c871e1 ("staging: bcm2835-audio: initial staging submission")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/staging/bcm2835-audio/bcm2835-vchiq.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/bcm2835-audio/bcm2835-vchiq.c b/drivers/staging/bcm2835-audio/bcm2835-vchiq.c
index e8fd9c79bcfc..b1f86240b32f 100644
--- a/drivers/staging/bcm2835-audio/bcm2835-vchiq.c
+++ b/drivers/staging/bcm2835-audio/bcm2835-vchiq.c
@@ -50,9 +50,9 @@
 #define LOG_DBG( fmt, arg... )   pr_info( "%s:%d " fmt, __func__, __LINE__, ##arg)
 #else
 #define LOG_ERR( fmt, arg... )   pr_err( "%s:%d " fmt, __func__, __LINE__, ##arg)
-#define LOG_WARN( fmt, arg... )
-#define LOG_INFO( fmt, arg... )
-#define LOG_DBG( fmt, arg... )
+#define LOG_WARN( fmt, arg... )	 no_printk(fmt, ##arg)
+#define LOG_INFO( fmt, arg... )	 no_printk(fmt, ##arg)
+#define LOG_DBG( fmt, arg... )	 no_printk(fmt, ##arg)
 #endif
 
 struct bcm2835_audio_instance {
-- 
2.9.0