Hi Chris, kernel test robot noticed the following build errors: [auto build test ERROR on robh/for-next] [also build test ERROR on tip/timers/core tip/irq/core tip/smp/core linus/master v6.10-rc5 next-20240628] [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/Chris-Packham/mips-dts-realtek-use-serial-instead-of-uart-in-node-name/20240627-202806 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next patch link: https://lore.kernel.org/r/20240627043317.3751996-8-chris.packham%40alliedtelesis.co.nz patch subject: [PATCH v3 7/9] clocksource: realtek: Add timer driver for rtl-otto platforms config: s390-randconfig-r133-20240629 compiler: s390-linux-gcc (GCC) 13.2.0 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 | Closes: https://lore.kernel.org/oe-kbuild-all/202406300803.mMM0Hpxv-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from include/linux/io.h:14, from include/linux/of_address.h:7, from drivers/clocksource/timer-of.c:10: drivers/clocksource/timer-of.c: In function 'timer_of_base_exit': >> arch/s390/include/asm/io.h:29:17: error: implicit declaration of function 'iounmap'; did you mean 'iommu_map'? [-Werror=implicit-function-declaration] 29 | #define iounmap iounmap | ^~~~~~~ drivers/clocksource/timer-of.c:151:9: note: in expansion of macro 'iounmap' 151 | iounmap(of_base->base); | ^~~~~~~ cc1: some warnings being treated as errors vim +29 arch/s390/include/asm/io.h cd24834130ac65 Jan Glauber 2012-11-29 24 b43b3fff042d08 Baoquan He 2023-07-06 25 /* b43b3fff042d08 Baoquan He 2023-07-06 26 * I/O memory mapping functions. b43b3fff042d08 Baoquan He 2023-07-06 27 */ b43b3fff042d08 Baoquan He 2023-07-06 28 #define ioremap_prot ioremap_prot b43b3fff042d08 Baoquan He 2023-07-06 @29 #define iounmap iounmap b43b3fff042d08 Baoquan He 2023-07-06 30 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki