Hi Karl,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 2c3418fffa9d037b2038a6db48be63f9e2291806]

url: https://github.com/intel-lab-lkp/linux/commits/Karl-Mehltretter/Input-sur40-... base: 2c3418fffa9d037b2038a6db48be63f9e2291806 patch link: https://lore.kernel.org/r/20261007054430.40155-1-kmehltretter%40gmail.com patch subject: [RFT PATCH] Input: sur40 - fix DMA handling in video capture config: arm64-randconfig-1003-20261007 (https://download.01.org/0day-ci/archive/20261008/202610081252.0UqYKs2X-lkp@i...) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261008/202610081252.0UqYKs2X-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/202610081252.0UqYKs2X-lkp@intel.com/

All warnings (new ones prefixed by >>, old ones prefixed by <<):

...

WARNING: modpost: drivers/input/touchscreen/sur40.ko: module uses symbol 'dma_buf_begin_cpu_access' from namespace 'DMA_BUF', but does not import it. WARNING: modpost: drivers/input/touchscreen/sur40.ko: module uses symbol 'dma_buf_end_cpu_access' from namespace 'DMA_BUF', but does not import it.

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