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

[kernel test robot <lkp@intel.com>]

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: sh-randconfig-r052-20240119 (https://download.01.org/0day-ci/archive/20240119/202401192234.0uzq25ka-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240119/202401192234.0uzq25ka-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/202401192234.0uzq25ka-lkp@intel.com/

All errors (new ones prefixed by >>):

   sh4-linux-ld: drivers/usb/gadget/function/f_fs.o: in function `ffs_dmabuf_signal_done':
>> f_fs.c:(.text+0x254c): undefined reference to `dma_fence_begin_signalling'
>> sh4-linux-ld: f_fs.c:(.text+0x2560): undefined reference to `dma_fence_signal'
>> sh4-linux-ld: f_fs.c:(.text+0x2564): undefined reference to `dma_fence_end_signalling'
   sh4-linux-ld: drivers/usb/gadget/function/f_fs.o: in function `ffs_epfile_release':
>> f_fs.c:(.text+0x28a0): undefined reference to `dma_buf_detach'
>> sh4-linux-ld: f_fs.c:(.text+0x28a4): undefined reference to `dma_buf_put'
   sh4-linux-ld: drivers/usb/gadget/function/f_fs.o: in function `ffs_dmabuf_unmap_work':
>> f_fs.c:(.text+0x2c6c): undefined reference to `dma_buf_unmap_attachment'
>> sh4-linux-ld: f_fs.c:(.text+0x2c70): undefined reference to `dma_resv_reset_max_fences'
>> sh4-linux-ld: f_fs.c:(.text+0x2c84): undefined reference to `dma_buf_detach'
   sh4-linux-ld: f_fs.c:(.text+0x2c88): undefined reference to `dma_buf_put'
>> sh4-linux-ld: f_fs.c:(.text+0x2c94): undefined reference to `dma_fence_release'
   sh4-linux-ld: drivers/usb/gadget/function/f_fs.o: in function `ffs_dmabuf_transfer':
>> f_fs.c:(.text+0x2e30): undefined reference to `dma_buf_get'
   sh4-linux-ld: f_fs.c:(.text+0x2e3c): undefined reference to `dma_buf_put'
>> sh4-linux-ld: f_fs.c:(.text+0x2ef4): undefined reference to `dma_resv_test_signaled'
>> sh4-linux-ld: f_fs.c:(.text+0x2efc): undefined reference to `dma_buf_map_attachment'
>> sh4-linux-ld: f_fs.c:(.text+0x3098): undefined reference to `dma_resv_reserve_fences'
>> sh4-linux-ld: f_fs.c:(.text+0x30bc): undefined reference to `dma_fence_init'
>> sh4-linux-ld: f_fs.c:(.text+0x30c0): undefined reference to `dma_resv_add_fence'
   sh4-linux-ld: f_fs.c:(.text+0x30c4): undefined reference to `dma_resv_reset_max_fences'
>> sh4-linux-ld: f_fs.c:(.text+0x30d4): undefined reference to `dma_fence_begin_signalling'
   sh4-linux-ld: f_fs.c:(.text+0x30e0): undefined reference to `dma_fence_end_signalling'
   sh4-linux-ld: f_fs.c:(.text+0x30f0): undefined reference to `dma_buf_put'
   sh4-linux-ld: f_fs.c:(.text+0x321c): undefined reference to `dma_fence_release'
>> sh4-linux-ld: f_fs.c:(.text+0x3224): undefined reference to `dma_buf_unmap_attachment'
   sh4-linux-ld: f_fs.c:(.text+0x3228): undefined reference to `dma_resv_reset_max_fences'
   sh4-linux-ld: f_fs.c:(.text+0x3230): undefined reference to `dma_buf_detach'
   sh4-linux-ld: f_fs.c:(.text+0x3234): undefined reference to `dma_buf_put'
   sh4-linux-ld: drivers/usb/gadget/function/f_fs.o: in function `ffs_epfile_ioctl':
   f_fs.c:(.text+0x41f0): undefined reference to `dma_buf_get'
>> sh4-linux-ld: f_fs.c:(.text+0x41f4): undefined reference to `dma_buf_attach'
   sh4-linux-ld: f_fs.c:(.text+0x4200): undefined reference to `dma_buf_detach'
>> sh4-linux-ld: f_fs.c:(.text+0x4210): undefined reference to `dma_fence_context_alloc'
   sh4-linux-ld: f_fs.c:(.text+0x4220): undefined reference to `dma_buf_put'
   sh4-linux-ld: f_fs.c:(.text+0x43b0): undefined reference to `dma_buf_detach'
   sh4-linux-ld: f_fs.c:(.text+0x43b4): undefined reference to `dma_buf_put'

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