Re: [hid:for-4.10/i2c-hid 6/7] drivers/hid/i2c-hid/i2c-hid.c:1048:23: error: implicit declaration of function 'devm_regulator_get'

On Fri, 9 Dec 2016, kbuild test robot wrote:

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid.git for-4.10/i2c-hid
head:   de3c99488609284e454cf2b4420a789038a4cfa8
commit: ead0687fe304a66a24e3d809d1070684f3abee71 [6/7] HID: i2c-hid: support regulator power on/off
config: x86_64-randconfig-x015-201649 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        git checkout ead0687fe304a66a24e3d809d1070684f3abee71
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All error/warnings (new ones prefixed by >>):

   drivers/hid/i2c-hid/i2c-hid.c: In function 'i2c_hid_probe':

quoted

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drivers/hid/i2c-hid/i2c-hid.c:1048:23: error: implicit declaration of function 'devm_regulator_get' [-Werror=implicit-function-declaration]

     ihid->pdata.supply = devm_regulator_get(&client->dev, "vdd");
                          ^~~~~~~~~~~~~~~~~~

quoted

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drivers/hid/i2c-hid/i2c-hid.c:1048:21: warning: assignment makes pointer from integer without a cast [-Wint-conversion]

     ihid->pdata.supply = devm_regulator_get(&client->dev, "vdd");
                        ^

quoted

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drivers/hid/i2c-hid/i2c-hid.c:1057:8: error: implicit declaration of function 'regulator_enable' [-Werror=implicit-function-declaration]

     ret = regulator_enable(ihid->pdata.supply);
           ^~~~~~~~~~~~~~~~

quoted

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drivers/hid/i2c-hid/i2c-hid.c:1139:2: error: implicit declaration of function 'regulator_disable' [-Werror=implicit-function-declaration]

     regulator_disable(ihid->pdata.supply);
     ^~~~~~~~~~~~~~~~~

Mea culpa, I've omitted this hunk while I was resolving a patch 
application conflict into for-4.10/i2c-hid branch. Fix now pushed out as 
d4c9be331.

Thanks,

-- 
Jiri Kosina
SUSE Labs