Hi Kevin, kernel test robot noticed the following build errors: [auto build test ERROR on char-misc/char-misc-testing] [also build test ERROR on char-misc/char-misc-next char-misc/char-misc-linus robh/for-next linus/master v6.14-rc6 next-20250307] [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/Kevin-Chen/ARM-dts-aspeed-g6-Add-AST2600-LPC-PCC-support/20250304-194530 base: char-misc/char-misc-testing patch link: https://lore.kernel.org/r/20250304104434.481429-4-kevin_chen%40aspeedtech.com patch subject: [PATCH v2 3/3] soc: aspeed: lpc-pcc: Add PCC controller support config: s390-randconfig-r112-20250310 (https://download.01.org/0day-ci/archive/20250310/202503101519.AIZNCLz1-lkp@xxxxxxxxx/config) compiler: s390-linux-gcc (GCC) 14.2.0 reproduce: (https://download.01.org/0day-ci/archive/20250310/202503101519.AIZNCLz1-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/202503101519.AIZNCLz1-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from include/linux/io.h:14, from include/linux/of_address.h:7, from drivers/mfd/syscon.c:18: drivers/mfd/syscon.c: In function 'of_syscon_register': >> arch/s390/include/asm/io.h:31:17: error: implicit declaration of function 'iounmap' [-Wimplicit-function-declaration] 31 | #define iounmap iounmap | ^~~~~~~ drivers/mfd/syscon.c:157:9: note: in expansion of macro 'iounmap' 157 | iounmap(base); | ^~~~~~~ Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for MFD_SYSCON Depends on [n]: HAS_IOMEM [=n] Selected by [y]: - ASPEED_LPC_PCC [=y] vim +/iounmap +31 arch/s390/include/asm/io.h cd24834130ac65 Jan Glauber 2012-11-29 26 b43b3fff042d08 Baoquan He 2023-07-06 27 /* b43b3fff042d08 Baoquan He 2023-07-06 28 * I/O memory mapping functions. b43b3fff042d08 Baoquan He 2023-07-06 29 */ b43b3fff042d08 Baoquan He 2023-07-06 30 #define ioremap_prot ioremap_prot b43b3fff042d08 Baoquan He 2023-07-06 @31 #define iounmap iounmap b43b3fff042d08 Baoquan He 2023-07-06 32 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
