compiler: gcc-7
kconfig: x86_64-sof-V4.14-config
status: FAIL: build error
build_errors: |
  sound/drivers/aloop.c:1269:2: error: 'cards' undeclared (first use in this function)
  sound/drivers/aloop.c:1264:2: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'err'