linux-kernel - [PATCH] hwmon: sht15 needs CONFIG

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Date:	Fri, 18 Dec 2015 15:52:28 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Guenter Roeck <linux@...ck-us.net>
Cc:	yalin wang <yalin.wang2010@...il.com>,
	Jean Delvare <jdelvare@...e.com>, lm-sensors@...sensors.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: [PATCH] hwmon: sht15 needs CONFIG_BITREVERSE

If CONFIG_BITREVERSE is not built-in, the sht15 driver fails to link:

drivers/built-in.o: In function `sht15_crc8':
drivers/hwmon/sht15.c:195: undefined reference to `byte_rev_table'

This adds a Kconfig 'select' statement, like all other users of
bitrev.h have it.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Fixes: 33836ee98533 ("hwmon:change sht15_reverse()")

diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 4a6e7c217329..60fb80bd353d 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -1207,6 +1207,7 @@ config SENSORS_PWM_FAN
 config SENSORS_SHT15
 	tristate "Sensiron humidity and temperature sensors. SHT15 and compat."
 	depends on GPIOLIB || COMPILE_TEST
+	select BITREVERSE
 	help
 	  If you say yes here you get support for the Sensiron SHT10, SHT11,
 	  SHT15, SHT71, SHT75 humidity and temperature sensors.

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