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Subject[kbusch:dma-prereg-v3-wip 5/6] io_uring/rsrc.c:155: undefined reference to `io_dma_unmap'
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/kbusch/linux.git dma-prereg-v3-wip
head: 4625fa7adf745334c0a2eb635121d587df797b29
commit: 1390adeaee356151aeb13383e6ee1ad1c5798816 [5/6] io_uring: add support for dma pre-mapping
config: x86_64-randconfig-m001 (https://download.01.org/0day-ci/archive/20220722/202207221539.1JrGZRYG-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/kbusch/linux.git/commit/?id=1390adeaee356151aeb13383e6ee1ad1c5798816
git remote add kbusch https://git.kernel.org/pub/scm/linux/kernel/git/kbusch/linux.git
git fetch --no-tags kbusch dma-prereg-v3-wip
git checkout 1390adeaee356151aeb13383e6ee1ad1c5798816
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

ld: io_uring/rsrc.o: in function `io_buffer_unmap':
>> io_uring/rsrc.c:155: undefined reference to `io_dma_unmap'


vim +155 io_uring/rsrc.c

144
145 static void io_buffer_unmap(struct io_ring_ctx *ctx, struct io_mapped_ubuf **slot)
146 {
147 struct io_mapped_ubuf *imu = *slot;
148 unsigned int i;
149
150 if (imu != ctx->dummy_ubuf) {
151 for (i = 0; i < imu->nr_bvecs; i++)
152 unpin_user_page(imu->bvec[i].bv_page);
153 if (imu->acct_pages)
154 io_unaccount_mem(ctx, imu->acct_pages);
> 155 io_dma_unmap(imu);
156 kvfree(imu);
157 }
158 *slot = NULL;
159 }
160

--
0-DAY CI Kernel Test Service
https://01.org/lkp

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