Hi Paul, kernel test robot noticed the following build errors: [auto build test ERROR on jic23-iio/togreg] [also build test ERROR on vkoul-dmaengine/next lwn/docs-next linus/master v6.8-rc7 next-20240308] [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/dmaengine-Add-API-function-dmaengine_prep_peripheral_dma_vec/20240309-010421 base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg patch link: https://lore.kernel.org/r/20240308170046.92899-4-paul%40crapouillou.net patch subject: [PATCH v8 3/6] iio: core: Add new DMABUF interface infrastructure config: um-randconfig-002-20240310 (https://download.01.org/0day-ci/archive/20240310/202403101928.WWSQwfdG-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240310/202403101928.WWSQwfdG-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/202403101928.WWSQwfdG-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): /usr/bin/ld: drivers/iio/industrialio-buffer.o: in function `iio_buffer_dmabuf_release': >> industrialio-buffer.c:(.text+0xec6): undefined reference to `dma_buf_unmap_attachment' >> /usr/bin/ld: industrialio-buffer.c:(.text+0xf96): undefined reference to `dma_buf_detach' >> /usr/bin/ld: industrialio-buffer.c:(.text+0xfa5): undefined reference to `dma_buf_put' /usr/bin/ld: drivers/iio/industrialio-buffer.o: in function `iio_buffer_signal_dmabuf_done': >> industrialio-buffer.c:(.text+0x4a56): undefined reference to `dma_fence_signal' /usr/bin/ld: drivers/iio/industrialio-buffer.o: in function `iio_buffer_cleanup': >> industrialio-buffer.c:(.text+0x64f2): undefined reference to `dma_fence_release' /usr/bin/ld: drivers/iio/industrialio-buffer.o: in function `iio_buffer_attach_dmabuf.isra.0': >> industrialio-buffer.c:(.text+0x9dbf): undefined reference to `dma_fence_context_alloc' >> /usr/bin/ld: industrialio-buffer.c:(.text+0x9df7): undefined reference to `dma_buf_get' >> /usr/bin/ld: industrialio-buffer.c:(.text+0x9e38): undefined reference to `dma_buf_attach' >> /usr/bin/ld: industrialio-buffer.c:(.text+0x9efe): undefined reference to `dma_buf_map_attachment' /usr/bin/ld: industrialio-buffer.c:(.text+0xa2c1): undefined reference to `dma_buf_detach' /usr/bin/ld: industrialio-buffer.c:(.text+0xa2cd): undefined reference to `dma_buf_put' >> /usr/bin/ld: industrialio-buffer.c:(.text+0xa34d): undefined reference to `dma_buf_unmap_attachment' /usr/bin/ld: drivers/iio/industrialio-buffer.o: in function `iio_buffer_enqueue_dmabuf': >> industrialio-buffer.c:(.text+0xa949): undefined reference to `dma_buf_get' /usr/bin/ld: industrialio-buffer.c:(.text+0xa997): undefined reference to `dma_buf_put' >> /usr/bin/ld: industrialio-buffer.c:(.text+0xac84): undefined reference to `dma_fence_init' >> /usr/bin/ld: industrialio-buffer.c:(.text+0xad4b): undefined reference to `dma_resv_wait_timeout' >> /usr/bin/ld: industrialio-buffer.c:(.text+0xadec): undefined reference to `dma_resv_reserve_fences' >> /usr/bin/ld: industrialio-buffer.c:(.text+0xae2c): undefined reference to `dma_resv_add_fence' >> /usr/bin/ld: industrialio-buffer.c:(.text+0xb0da): undefined reference to `dma_fence_release' /usr/bin/ld: drivers/iio/industrialio-buffer.o: in function `iio_buffer_chrdev_ioctl': industrialio-buffer.c:(.text+0xb833): undefined reference to `dma_buf_get' /usr/bin/ld: industrialio-buffer.c:(.text+0xbad0): undefined reference to `dma_buf_put' collect2: error: ld returned 1 exit status -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
