Hi Frank, kernel test robot noticed the following build errors: [auto build test ERROR on pci/next] [also build test ERROR on pci/for-linus linus/master v6.7-rc4 next-20231207] [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/Frank-Li/PCI-imx6-Simplify-clock-handling-by-using-HAS_CLK_-bitmask/20231207-000209 base: https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git next patch link: https://lore.kernel.org/r/20231206155903.566194-8-Frank.Li%40nxp.com patch subject: [PATCH 7/9] PCI: imx6: Simplify switch-case logic by involve init_phy callback config: powerpc-randconfig-002-20231207 (https://download.01.org/0day-ci/archive/20231207/202312071732.l6LvuDdy-lkp@xxxxxxxxx/config) compiler: powerpc-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231207/202312071732.l6LvuDdy-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/202312071732.l6LvuDdy-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): powerpc-linux-ld: drivers/pci/controller/dwc/pci-imx6.o: in function `imx6_pcie_host_init': >> pci-imx6.c:(.text.imx6_pcie_host_init+0x120): undefined reference to `__ffsdi2' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
