undefined reference to `snd_timer_interrupt'

From: kbuild test robot
Date: Tue Jan 26 2016 - 17:17:45 EST

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 92e963f50fc74041b5e9e744c330dca48e04f08d
commit: 90bbaf66ee7b946952f1e82a0069639dea5fd893 ALSA: timer: add config item to export PCM timer disabling for expert
date: 3 months ago
config: x86_64-randconfig-s0-01270516 (attached as .config)
git checkout 90bbaf66ee7b946952f1e82a0069639dea5fd893
# save the attached .config to linux build tree
make ARCH=x86_64

All errors (new ones prefixed by >>):

sound/built-in.o: In function `snd_emu10k1_interrupt':
>> (.text+0x604c7): undefined reference to `snd_timer_interrupt'
sound/built-in.o: In function `snd_emu10k1_timer':
>> (.text+0x70d5d): undefined reference to `snd_timer_new'

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