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@i...) 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@i...)

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