Re: [PATCH v4 3/4] usb: gadget: functionfs: Add DMABUF import interface

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Hi Paul,

kernel test robot noticed the following build errors:

[auto build test ERROR on usb/usb-testing]
[also build test ERROR on usb/usb-next usb/usb-linus lwn/docs-next linus/master v6.7 next-20240119]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Paul-Cercueil/usb-gadget-Support-already-mapped-DMA-SGs/20240117-203111
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
patch link:    https://lore.kernel.org/r/20240117122646.41616-4-paul%40crapouillou.net
patch subject: [PATCH v4 3/4] usb: gadget: functionfs: Add DMABUF import interface
config: arm-randconfig-r112-20240119 (https://download.01.org/0day-ci/archive/20240119/202401192043.6DTnLlKn-lkp@xxxxxxxxx/config)
compiler: ClangBuiltLinux clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce: (https://download.01.org/0day-ci/archive/20240119/202401192043.6DTnLlKn-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202401192043.6DTnLlKn-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: dma_buf_get
   >>> referenced by f_fs.c
   >>>               drivers/usb/gadget/function/f_fs.o:(ffs_epfile_ioctl) in archive vmlinux.a
   >>> referenced by f_fs.c
   >>>               drivers/usb/gadget/function/f_fs.o:(ffs_epfile_ioctl) in archive vmlinux.a
   >>> referenced by f_fs.c
   >>>               drivers/usb/gadget/function/f_fs.o:(ffs_epfile_ioctl) in archive vmlinux.a
--
>> ld.lld: error: undefined symbol: dma_buf_detach
   >>> referenced by f_fs.c
   >>>               drivers/usb/gadget/function/f_fs.o:(ffs_epfile_ioctl) in archive vmlinux.a
   >>> referenced by f_fs.c
   >>>               drivers/usb/gadget/function/f_fs.o:(ffs_epfile_ioctl) in archive vmlinux.a
   >>> referenced by f_fs.c
   >>>               drivers/usb/gadget/function/f_fs.o:(ffs_epfile_ioctl) in archive vmlinux.a
   >>> referenced 2 more times
--
>> ld.lld: error: undefined symbol: dma_fence_init
   >>> referenced by f_fs.c
   >>>               drivers/usb/gadget/function/f_fs.o:(ffs_epfile_ioctl) in archive vmlinux.a
--
>> ld.lld: error: undefined symbol: dma_resv_add_fence
   >>> referenced by f_fs.c
   >>>               drivers/usb/gadget/function/f_fs.o:(ffs_epfile_ioctl) in archive vmlinux.a
--
>> ld.lld: error: undefined symbol: dma_fence_signal
   >>> referenced by f_fs.c
   >>>               drivers/usb/gadget/function/f_fs.o:(ffs_epfile_dmabuf_io_complete) in archive vmlinux.a
   >>> referenced by f_fs.c
   >>>               drivers/usb/gadget/function/f_fs.o:(ffs_dmabuf_signal_done) in archive vmlinux.a
--
>> ld.lld: error: undefined symbol: dma_fence_release
   >>> referenced by f_fs.c
   >>>               drivers/usb/gadget/function/f_fs.o:(dma_fence_put) in archive vmlinux.a
   >>> referenced by f_fs.c
   >>>               drivers/usb/gadget/function/f_fs.o:(ffs_dmabuf_unmap_work) in archive vmlinux.a
--
>> ld.lld: error: undefined symbol: dma_buf_put
   >>> referenced by f_fs.c
   >>>               drivers/usb/gadget/function/f_fs.o:(ffs_epfile_ioctl) in archive vmlinux.a
   >>> referenced by f_fs.c
   >>>               drivers/usb/gadget/function/f_fs.o:(ffs_epfile_ioctl) in archive vmlinux.a
   >>> referenced by f_fs.c
   >>>               drivers/usb/gadget/function/f_fs.o:(ffs_epfile_ioctl) in archive vmlinux.a
   >>> referenced 2 more times
--
>> ld.lld: error: undefined symbol: dma_buf_attach
   >>> referenced by f_fs.c
   >>>               drivers/usb/gadget/function/f_fs.o:(ffs_epfile_ioctl) in archive vmlinux.a
--
>> ld.lld: error: undefined symbol: dma_fence_context_alloc
   >>> referenced by f_fs.c
   >>>               drivers/usb/gadget/function/f_fs.o:(ffs_epfile_ioctl) in archive vmlinux.a
--
>> ld.lld: error: undefined symbol: dma_resv_test_signaled
   >>> referenced by f_fs.c
   >>>               drivers/usb/gadget/function/f_fs.o:(ffs_epfile_ioctl) in archive vmlinux.a
   >>> referenced by f_fs.c
   >>>               drivers/usb/gadget/function/f_fs.o:(ffs_epfile_ioctl) in archive vmlinux.a
--
>> ld.lld: error: undefined symbol: dma_buf_map_attachment
   >>> referenced by f_fs.c
   >>>               drivers/usb/gadget/function/f_fs.o:(ffs_epfile_ioctl) in archive vmlinux.a
..

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki



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