From 59dc1c8619e9f89987f36f03c5047fc2af642215 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 22 Sep 2016 11:42:30 +0200 Subject: [PATCH] iio:pressure: zpa2326: remove redundant "DEBUG" ifdef The -Wempty-body gcc warning triggers in the newly added zpa2326 driver: drivers/iio/pressure/zpa2326.c: In function 'zpa2326_dequeue_pressure': drivers/iio/pressure/zpa2326.c:578:3: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body] The use of an empty statement behind 'if (...)' is harmless here, but it shows that the dev_dbg() macro is not used correctly: when the "DEBUG" macro is not set, dev_dbg() already defaults to a no-operation, though one that lets the compiler know that the arguments are used, and lets it check the format string. Fixing this also simplifies the driver. Fixes: 03b262f2bbf4 ("iio:pressure: initial zpa2326 barometer support") Signed-off-by: Arnd Bergmann Signed-off-by: Jonathan Cameron --- drivers/iio/pressure/zpa2326.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/iio/pressure/zpa2326.c b/drivers/iio/pressure/zpa2326.c index 19d2eb4..c720c3a 100644 --- a/drivers/iio/pressure/zpa2326.c +++ b/drivers/iio/pressure/zpa2326.c @@ -147,12 +147,8 @@ struct zpa2326_private { #define zpa2326_warn(_idev, _format, _arg...) \ dev_warn(_idev->dev.parent, _format, ##_arg) -#ifdef DEBUG #define zpa2326_dbg(_idev, _format, _arg...) \ dev_dbg(_idev->dev.parent, _format, ##_arg) -#else -#define zpa2326_dbg(_idev, _format, _arg...) -#endif bool zpa2326_isreg_writeable(struct device *dev, unsigned int reg) { -- 2.7.4