linux-kernel - Re: [tip:x86/platform 1/1] platform_bt.c:undefined reference to `gpiod_add_lookup

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Date:   Mon, 3 Apr 2017 12:36:25 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     kbuild test robot <fengguang.wu@...el.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        kbuild-all@...org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        tipbuild@...or.com, Ingo Molnar <mingo@...nel.org>
Subject: Re: [tip:x86/platform 1/1] platform_bt.c:undefined reference to `gpiod_add_lookup_table'

On Mon, Apr 3, 2017 at 12:31 PM, Arnd Bergmann <arnd@...db.de> wrote:
> On Mon, Apr 3, 2017 at 10:13 AM, Andy Shevchenko
> <andy.shevchenko@...il.com> wrote:
>> On Mon, Apr 3, 2017 at 2:23 AM, kbuild test robot
>> <fengguang.wu@...el.com> wrote:
>>> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/platform
>>> head:   d4d969909bef4c1e103eec0fc2c820773811fb72
>>> commit: d4d969909bef4c1e103eec0fc2c820773811fb72 [1/1] x86/platform/intel-mid: Enable Bluetooth support on Intel Edison
>>> config: x86_64-randconfig-s4-04030434 (attached as .config)
>>> compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
>>> reproduce:
>>>         git checkout d4d969909bef4c1e103eec0fc2c820773811fb72
>>>         # save the attached .config to linux build tree
>>>         make ARCH=x86_64
>>>
>>> All errors (new ones prefixed by >>):
>>>
>>>    arch/x86/built-in.o: In function `tng_bt_sfi_setup':
>>>>> platform_bt.c:(.init.text+0x13a30): undefined reference to `gpiod_add_lookup_table'
>
> I'd guess it's a missing dependency on GPIOLIB

Apparently not this one.

The module is purely built whenever HCIUART_BCM is defined which is a
consumer of GPIO.
And that one does not have a dependency.

Fengguang, this is second semi-false positive report. Can we do
something about such?

-- 
With Best Regards,
Andy Shevchenko