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SubjectRe: [PATCH v4 2/3] hwmon: (adt7475) temperature smoothing
Date
On 16/05/17 20:23, kbuild test robot wrote:
> Hi Chris,
>
> [auto build test ERROR on hwmon/hwmon-next]
> [also build test ERROR on v4.12-rc1 next-20170516]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
>
> url: https://github.com/0day-ci/linux/commits/Chris-Packham/hwmon-adt7475-fan-stall-prevention/20170515-093530
> base: https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-next
> config: x86_64-rhel (attached as .config)
> compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
> reproduce:
> # save the attached .config to linux build tree
> make ARCH=x86_64
>
> All errors (new ones prefixed by >>):
>
> drivers/hwmon/adt7475.c: In function 'set_temp_st':
>>> drivers/hwmon/adt7475.c:622:9: error: implicit declaration of function 'find_closest_descending' [-Werror=implicit-function-declaration]
> val = find_closest_descending(val, ad7475_st_map,
> ^~~~~~~~~~~~~~~~~~~~~~~
> cc1: some warnings being treated as errors
>
> vim +/find_closest_descending +622 drivers/hwmon/adt7475.c
>
> 616 shift = 4;
> 617 idx = 1;
> 618 break;
> 619 }
> 620
> 621 if (val > 0) {
> > 622 val = find_closest_descending(val, ad7475_st_map,
> 623 ARRAY_SIZE(ad7475_st_map));
> 624 val |= 0x8;
> 625 }
>
> ---
> 0-DAY kernel test infrastructure Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all Intel Corporation
>

I'm not sure how this is failing. find_closest_descending() is a macro
defined in linux/util_macros.h which is explicitly included in
drivers/hwmon/adt7475.c. Aside from the include guards there's nothing
conditional about it.

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