[tiwai-sound:topic/midi20-gadget 56/56] ld.lld: error: undefined symbol: snd_ump_transmit

[tiwai-sound:topic/midi20-gadget 56/56] ld.lld: error: undefined symbol: snd_ump_transmit

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git topic/midi20-gadget
head:   ed28b6939ebadd073e731ccf0f2c6ce4ab102ffd
commit: ed28b6939ebadd073e731ccf0f2c6ce4ab102ffd [56/56] usb: gadget: add support for USB MIDI 2.0 function driver (WIP)
config: i386-randconfig-r023-20230629 (https://download.01.org/0day-ci/archive/20230630/202306300550.yyh6cWzj-lkp@intel.com/config)
compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project.git 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a)
reproduce: (https://download.01.org/0day-ci/archive/20230630/202306300550.yyh6cWzj-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306300550.yyh6cWzj-lkp@intel.com/

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: snd_ump_transmit
   >>> referenced by f_midi2.c:644 (drivers/usb/gadget/function/f_midi2.c:644)
   >>>               drivers/usb/gadget/function/f_midi2.o:(process_ump_transmit) in archive vmlinux.a
--
>> ld.lld: error: undefined symbol: snd_ump_endpoint_new
   >>> referenced by f_midi2.c:946 (drivers/usb/gadget/function/f_midi2.c:946)
   >>>               drivers/usb/gadget/function/f_midi2.o:(f_midi2_bind) in archive vmlinux.a
--
>> ld.lld: error: undefined symbol: snd_ump_block_new
   >>> referenced by f_midi2.c:957 (drivers/usb/gadget/function/f_midi2.c:957)
   >>>               drivers/usb/gadget/function/f_midi2.o:(f_midi2_bind) in archive vmlinux.a
--
>> ld.lld: error: undefined symbol: snd_ump_receive
   >>> referenced by f_midi2.c:623 (drivers/usb/gadget/function/f_midi2.c:623)
   >>>               drivers/usb/gadget/function/f_midi2.o:(f_midi2_ep_out_complete) in archive vmlinux.a
--
>> ld.lld: error: undefined symbol: snd_ump_receive_ump_val
   >>> referenced by f_midi2.c:599 (drivers/usb/gadget/function/f_midi2.c:599)
   >>>               drivers/usb/gadget/function/f_midi2.o:(f_midi2_ep_out_complete) in archive vmlinux.a

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