Hi Rasmus, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v5.4-rc5 next-20191028] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Rasmus-Villemoes/QUICC-Engine-support-on-ARM/20191028-202537 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git d6d5df1db6e9d7f8f76d2911707f7d5877251b02 config: sparc64-allmodconfig (attached as .config) compiler: sparc64-linux-gcc (GCC) 7.4.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.4.0 make.cross ARCH=sparc64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot All warnings (new ones prefixed by >>): In file included from include/linux/kernel.h:11:0, from include/linux/delay.h:22, from drivers/net//wan/fsl_ucc_hdlc.c:7: drivers/net//wan/fsl_ucc_hdlc.c: In function 'uhdlc_init': >> include/linux/err.h:22:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) ^ include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ >> drivers/net//wan/fsl_ucc_hdlc.c:198:6: note: in expansion of macro 'IS_ERR_VALUE' if (IS_ERR_VALUE(priv->ucc_pram_offset)) { ^~~~~~~~~~~~ >> include/linux/err.h:22:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) ^ include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ drivers/net//wan/fsl_ucc_hdlc.c:236:6: note: in expansion of macro 'IS_ERR_VALUE' if (IS_ERR_VALUE(riptr)) { ^~~~~~~~~~~~ >> include/linux/err.h:22:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) ^ include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ drivers/net//wan/fsl_ucc_hdlc.c:243:6: note: in expansion of macro 'IS_ERR_VALUE' if (IS_ERR_VALUE(tiptr)) { ^~~~~~~~~~~~ -- In file included from include/linux/kernel.h:11:0, from drivers/soc//fsl/qe/ucc_fast.c:11: drivers/soc//fsl/qe/ucc_fast.c: In function 'ucc_fast_init': >> include/linux/err.h:22:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) ^ include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ >> drivers/soc//fsl/qe/ucc_fast.c:267:6: note: in expansion of macro 'IS_ERR_VALUE' if (IS_ERR_VALUE(uccf->ucc_fast_tx_virtual_fifo_base_offset)) { ^~~~~~~~~~~~ >> include/linux/err.h:22:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) ^ include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ drivers/soc//fsl/qe/ucc_fast.c:280:6: note: in expansion of macro 'IS_ERR_VALUE' if (IS_ERR_VALUE(uccf->ucc_fast_rx_virtual_fifo_base_offset)) { ^~~~~~~~~~~~ -- In file included from include/linux/kernel.h:11:0, from include/linux/delay.h:22, from drivers/net/wan/fsl_ucc_hdlc.c:7: drivers/net/wan/fsl_ucc_hdlc.c: In function 'uhdlc_init': >> include/linux/err.h:22:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) ^ include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ drivers/net/wan/fsl_ucc_hdlc.c:198:6: note: in expansion of macro 'IS_ERR_VALUE' if (IS_ERR_VALUE(priv->ucc_pram_offset)) { ^~~~~~~~~~~~ >> include/linux/err.h:22:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) ^ include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ drivers/net/wan/fsl_ucc_hdlc.c:236:6: note: in expansion of macro 'IS_ERR_VALUE' if (IS_ERR_VALUE(riptr)) { ^~~~~~~~~~~~ >> include/linux/err.h:22:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) ^ include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ drivers/net/wan/fsl_ucc_hdlc.c:243:6: note: in expansion of macro 'IS_ERR_VALUE' if (IS_ERR_VALUE(tiptr)) { ^~~~~~~~~~~~ -- In file included from include/linux/kernel.h:11:0, from drivers/soc/fsl/qe/ucc_fast.c:11: drivers/soc/fsl/qe/ucc_fast.c: In function 'ucc_fast_init': >> include/linux/err.h:22:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) ^ include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ drivers/soc/fsl/qe/ucc_fast.c:267:6: note: in expansion of macro 'IS_ERR_VALUE' if (IS_ERR_VALUE(uccf->ucc_fast_tx_virtual_fifo_base_offset)) { ^~~~~~~~~~~~ >> include/linux/err.h:22:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) ^ include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ drivers/soc/fsl/qe/ucc_fast.c:280:6: note: in expansion of macro 'IS_ERR_VALUE' if (IS_ERR_VALUE(uccf->ucc_fast_rx_virtual_fifo_base_offset)) { ^~~~~~~~~~~~ vim +22 include/linux/err.h ebba5f9fcb8823 Randy Dunlap 2006-09-27 21 aa00edc1287a69 Linus Torvalds 2016-05-27 @22 #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) 07ab67c8d0d7c1 Linus Torvalds 2005-05-19 23 :::::: The code at line 22 was first introduced by commit :::::: aa00edc1287a693eadc7bc67a3d73555d969b35d make IS_ERR_VALUE() complain about non-pointer-sized arguments :::::: TO: Linus Torvalds :::::: CC: Linus Torvalds --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation