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From: Andrew Morton <akpm@linux-foundation.org>
To: kbuild test robot <fengguang.wu@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>,
	kbuild-all@01.org, Johannes Weiner <hannes@cmpxchg.org>,
	Linux Memory Management List <linux-mm@kvack.org>
Subject: Re: [mmotm:master 7/197] ak8975.c:undefined reference to `i2c_smbus_write_byte_data'
Date: Thu, 26 Feb 2015 12:44:32 -0800	[thread overview]
Message-ID: <20150226124432.2220a6bfd14cc9ce154f8a62@linux-foundation.org> (raw)
In-Reply-To: <201502261516.PXhQgKP2%fengguang.wu@intel.com>

On Thu, 26 Feb 2015 15:36:18 +0800 kbuild test robot <fengguang.wu@intel.com> wrote:

> It's probably a bug fix that unveils the link errors.
> 
> tree:   git://git.cmpxchg.org/linux-mmotm.git master
> head:   87bf5bee8749a1d3c82d12a55a1e33f6a22da8ed
> commit: 7d789876f1a932dfa1a70ae8eeba270aa34358ad [7/197] rtc: ds1685: fix ds1685_rtc_alarm_irq_enable build error
> config: i386-randconfig-nexr0-0226 (attached as .config)
> reproduce:
>   git checkout 7d789876f1a932dfa1a70ae8eeba270aa34358ad
>   # save the attached .config to linux build tree
>   make ARCH=i386 
> 
> All error/warnings:
> 
>    drivers/built-in.o: In function `ak8975_set_mode':
> >> ak8975.c:(.text+0x16c108): undefined reference to `i2c_smbus_write_byte_data'
>    drivers/built-in.o: In function `ak8975_probe':
> >> ak8975.c:(.text+0x16c29b): undefined reference to `i2c_smbus_read_i2c_block_data'
> >> ak8975.c:(.text+0x16c348): undefined reference to `i2c_smbus_read_i2c_block_data'
>    drivers/built-in.o: In function `ak8975_read_raw':
> >> ak8975.c:(.text+0x16c66b): undefined reference to `i2c_smbus_read_byte_data'
> >> ak8975.c:(.text+0x16c6a2): undefined reference to `i2c_smbus_read_byte_data'
> >> ak8975.c:(.text+0x16c6c6): undefined reference to `i2c_smbus_read_byte_data'
> >> ak8975.c:(.text+0x16c751): undefined reference to `i2c_smbus_read_word_data'
>    drivers/built-in.o: In function `ak8975_driver_init':
> >> ak8975.c:(.init.text+0x10e35): undefined reference to `i2c_register_driver'
>    drivers/built-in.o: In function `ak8975_driver_exit':
> >> ak8975.c:(.exit.text+0x1841): undefined reference to `i2c_del_driver'

Yes, something seems to have gone spectacularly wrong here.  "rtc:
ds1685: fix ds1685_rtc_alarm_irq_enable build error" has nothing to do
with i2c or with drivers/iio/magnetometer/ak8975.c.

And CONFIG_AK8975 depends on CONFIG_I2C.

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  reply	other threads:[~2015-02-26 20:44 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-26  7:36 kbuild test robot
2015-02-26 20:44 ` Andrew Morton [this message]
2015-02-26 21:23   ` Arnd Bergmann
2015-02-27 15:28     ` Jonathan Cameron

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