[cc += Rafael J. Wysocki, linux-acpi]
Hi Stephen,
On Wed, Feb 10, 2016 at 12:24:51PM +1100, Stephen Rothwell wrote:
> Hi all,
>
> After merging the drm-misc tree, today's linux-next build (arm
> multi_v7_defconfig) failed like this:
>
> In file included from drivers/gpu/drm/nouveau/nouveau_drm.c:25:0:
> include/linux/apple-gmux.h: In function 'apple_gmux_present':
> include/linux/apple-gmux.h:36:42: error: implicit declaration of function 'acpi_dev_present' [-Werror=implicit-function-declaration]
> return IS_ENABLED(CONFIG_APPLE_GMUX) && acpi_dev_present(GMUX_ACPI_HID);
> ^
>
> Caused by commit
>
> 2413306c2566 ("apple-gmux: Add helper for presence detect")
>
> I have used the drm-misc tree from next-20160209 for today.
Ugh, apologies, I didn't have a non-ACPI platform available to test
this on.
Solution is to either add to include/linux/acpi.h
static inline bool acpi_dev_present(const char *hid)
{
return false;
}
somewhere below
#else /* !CONFIG_ACPI */
or alternatively to add to include/linux/apple-gmux.h
IS_ENABLED(CONFIG_ACPI)
in apple_gmux_present().
I'll check the other users of acpi_dev_present() to see which of
these two solutions is more appropriate and will post a fix shortly.
Thanks a lot for reporting this.
Lukas
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