Hi Zhao, [auto build test WARNING on linus/master] [also build test WARNING on v4.9-rc6] [cannot apply to next-20161123] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Zhao-Qiang/QE-remove-PPCisms-for-QE/20161124-150513 config: ia64-allmodconfig (attached as .config) compiler: ia64-linux-gcc (GCC) 6.2.0 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=ia64 All warnings (new ones prefixed by >>): In file included from include/linux/linkage.h:4:0, from include/linux/kernel.h:6, from drivers/soc/fsl/qe/ucc_fast.c:15: drivers/soc/fsl/qe/ucc_fast.c: In function 'ucc_fast_init': >> include/linux/err.h:21:49: 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:168:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ >> drivers/soc/fsl/qe/ucc_fast.c:271:6: note: in expansion of macro >> 'IS_ERR_VALUE' if (IS_ERR_VALUE(uccf->ucc_fast_tx_virtual_fifo_base_offset)) { ^~~~~~~~~~~~ >> include/linux/err.h:21:49: 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:168:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ drivers/soc/fsl/qe/ucc_fast.c:284:6: note: in expansion of macro 'IS_ERR_VALUE' if (IS_ERR_VALUE(uccf->ucc_fast_rx_virtual_fifo_base_offset)) { ^~~~~~~~~~~~ vim +21 include/linux/err.h a5ed3cee Joe Perches 2014-04-03 5 #include <linux/types.h> ^1da177e Linus Torvalds 2005-04-16 6 ^1da177e Linus Torvalds 2005-04-16 7 #include <asm/errno.h> ^1da177e Linus Torvalds 2005-04-16 8 ^1da177e Linus Torvalds 2005-04-16 9 /* ^1da177e Linus Torvalds 2005-04-16 10 * Kernel pointers have redundant information, so we can use a a5ed3cee Joe Perches 2014-04-03 11 * scheme where we can return either an error code or a normal ^1da177e Linus Torvalds 2005-04-16 12 * pointer with the same return value. ^1da177e Linus Torvalds 2005-04-16 13 * ^1da177e Linus Torvalds 2005-04-16 14 * This should be a per-architecture thing, to allow different ^1da177e Linus Torvalds 2005-04-16 15 * error and pointer decisions. ^1da177e Linus Torvalds 2005-04-16 16 */ fa79837d Ralf Baechle 2006-07-01 17 #define MAX_ERRNO 4095 fa79837d Ralf Baechle 2006-07-01 18 ebba5f9f Randy Dunlap 2006-09-27 19 #ifndef __ASSEMBLY__ ebba5f9f Randy Dunlap 2006-09-27 20 aa00edc1 Linus Torvalds 2016-05-27 @21 #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) 07ab67c8 Linus Torvalds 2005-05-19 22 e47103b1 Jani Nikula 2010-05-24 23 static inline void * __must_check ERR_PTR(long error) ^1da177e Linus Torvalds 2005-04-16 24 { ^1da177e Linus Torvalds 2005-04-16 25 return (void *) error; ^1da177e Linus Torvalds 2005-04-16 26 } ^1da177e Linus Torvalds 2005-04-16 27 e7152b97 Dan Carpenter 2013-07-03 28 static inline long __must_check PTR_ERR(__force const void *ptr) ^1da177e Linus Torvalds 2005-04-16 29 { :::::: The code at line 21 was first introduced by commit :::::: aa00edc1287a693eadc7bc67a3d73555d969b35d make IS_ERR_VALUE() complain about non-pointer-sized arguments :::::: TO: Linus Torvalds <torva...@linux-foundation.org> :::::: CC: Linus Torvalds <torva...@linux-foundation.org> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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