Hi Serge, I love your patch! Yet something to improve: [auto build test ERROR on helgaas-pci/next] [also build test ERROR on linus/master next-20221215] [cannot apply to vkoul-dmaengine/next helgaas-pci/for-linus v6.1] [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/Serge-Semin/dmaengine-dw-edma-Add-RP-EP-local-DMA-controllers-support/20221215-075727 base: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next patch link: https://lore.kernel.org/r/20221214235305.31744-26-Sergey.Semin%40baikalelectronics.ru patch subject: [PATCH v7 25/25] PCI: dwc: Add DW eDMA engine support config: ia64-allmodconfig compiler: ia64-linux-gcc (GCC) 12.1.0 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/intel-lab-lkp/linux/commit/fe564bd2e5acda178be39a9138f5bfc077327588 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Serge-Semin/dmaengine-dw-edma-Add-RP-EP-local-DMA-controllers-support/20221215-075727 git checkout fe564bd2e5acda178be39a9138f5bfc077327588 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=ia64 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All errors (new ones prefixed by >>): ia64-linux-ld: drivers/pci/controller/dwc/pcie-designware.o: in function `dw_pcie_edma_detect': >> pcie-designware.c:(.text+0x3812): undefined reference to `dw_edma_probe' ia64-linux-ld: drivers/pci/controller/dwc/pcie-designware.o: in function `dw_pcie_edma_remove': >> pcie-designware.c:(.text+0x39d2): undefined reference to `dw_edma_remove' -- 0-DAY CI Kernel Test Service https://01.org/lkp