linux-kernel - [PATCH v2] Input: adxl34x - fix gcc-7 -Wint-in-bool-context warning

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Date:   Mon, 17 Jul 2017 13:43:51 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Michael Hennerich <michael.hennerich@...log.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:     Arnd Bergmann <arnd@...db.de>, linux-input@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2] Input: adxl34x - fix gcc-7 -Wint-in-bool-context warning

FIFO_MODE is an macro expression with a '<<' operator, which
gcc points out could be misread as a '<':

drivers/input/misc/adxl34x.c: In function 'adxl34x_probe':
drivers/input/misc/adxl34x.c:799:36: error: '<<' in boolean context, did you mean '<' ? [-Werror=int-in-bool-context]

This converts the test to an explicit comparison with FIFO_BYPASS,
making it clearer to gcc and the reader what is intended.

Fixes: e27c729219ad ("Input: add driver for ADXL345/346 Digital Accelerometers")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
v2: use FIFO_BYPASS instead of 0

 drivers/input/misc/adxl34x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/misc/adxl34x.c b/drivers/input/misc/adxl34x.c
index 2b2d02f408bb..a3e79bf5a04b 100644
--- a/drivers/input/misc/adxl34x.c
+++ b/drivers/input/misc/adxl34x.c
@@ -796,7 +796,7 @@ struct adxl34x *adxl34x_probe(struct device *dev, int irq,
 
 	if (pdata->watermark) {
 		ac->int_mask |= WATERMARK;
-		if (!FIFO_MODE(pdata->fifo_mode))
+		if (FIFO_MODE(pdata->fifo_mode) == FIFO_BYPASS)
 			ac->pdata.fifo_mode |= FIFO_STREAM;
 	} else {
 		ac->int_mask |= DATA_READY;
-- 
2.9.0