tree: https://github.com/omap-audio/linux-audio peter/linux-next-wip head: c02be942bf9f1f7fec284cf3b1266741e5964140 commit: 7e4a26181ab91aeb561a52a2ea28b62f1078a261 [24/85] dmaengine: ti: k3-udma: Add support for burst_size configuration for mem2mem config: arm64-allyesconfig (attached as .config) compiler: aarch64-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/omap-audio/linux-audio/commit/7e4a26181ab91aeb561a52a2... git remote add omap-audio https://github.com/omap-audio/linux-audio git fetch --no-tags omap-audio peter/linux-next-wip git checkout 7e4a26181ab91aeb561a52a2ea28b62f1078a261 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/dma/ti/k3-udma.c: In function 'udma_get_copy_align': 5125 | u8 tpl, burst_size; | ^~~~~~~~~~ vim +/burst_size +5125 drivers/dma/ti/k3-udma.c 5121 5122 static enum dmaengine_alignment udma_get_copy_align(struct udma_dev *ud) 5123 { 5124 const struct udma_match_data *match_data = ud->match_data; 5126 5127 if (!match_data->enable_memcpy_support) 5128 return DMAENGINE_ALIGN_8_BYTES; 5129 5130 /* Get the highest TPL level the device supports for memcpy */ 5131 if (ud->bchan_cnt) { 5132 tpl = udma_get_chan_tpl_index(&ud->bchan_tpl, 0); 5133 } else if (ud->tchan_cnt) { 5134 tpl = udma_get_chan_tpl_index(&ud->tchan_tpl, 0); 5135 } else { 5136 return DMAENGINE_ALIGN_8_BYTES; 5137 } 5138 5139 burst_size = match_data->burst_size[tpl]; 5140 5141 switch (match_data->burst_size[tpl]) { 5142 case TI_SCI_RM_UDMAP_CHAN_BURST_SIZE_256_BYTES: 5143 return DMAENGINE_ALIGN_256_BYTES; 5144 case TI_SCI_RM_UDMAP_CHAN_BURST_SIZE_128_BYTES: 5145 return DMAENGINE_ALIGN_128_BYTES; 5146 case TI_SCI_RM_UDMAP_CHAN_BURST_SIZE_64_BYTES: 5147 fallthrough; 5148 default: 5149 return DMAENGINE_ALIGN_64_BYTES; 5150 } 5151 } 5152 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org