[alsa-devel] error: implicit declaration of function ‘fw_iso_resource_manage’

I've just tried building Alsa from git (alsa-driver/alsa-kernel). It won't build resulting in this error message:

~/workspace/Alsa/alsa-driver/firewire/../alsa-kernel/firewire/iso-resources.c: In function ‘fw_iso_resources_allocate’: ~/workspace/Alsa/alsa-driver/firewire/../alsa-kernel/firewire/iso-resources.c:135:2: error: implicit declaration of function ‘fw_iso_resource_manage’

Are there any patches waiting to resolve this issue?

Regards,

Felix