Messages in this thread | | | Date | Mon, 22 May 2017 14:53:43 +0800 | From | kbuild test robot <> | Subject | Re: [PATCH] kconfig: always use user input symbols |
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Hi Tycho,
[auto build test ERROR on linus/master] [also build test ERROR on v4.12-rc2 next-20170522] [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/Tycho-Andersen/kconfig-always-use-user-input-symbols/20170522-143552 config: i386-tinyconfig (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=i386
All error/warnings (new ones prefixed by >>):
In file included from arch/x86/include/asm/bitops.h:16:0, from include/linux/bitops.h:36, from include/linux/kernel.h:10, from include/asm-generic/bug.h:15, from arch/x86/include/asm/bug.h:81, from include/linux/bug.h:4, from include/linux/page-flags.h:9, from kernel/bounds.c:9: arch/x86/include/asm/arch_hweight.h: In function '__arch_hweight64': >> arch/x86/include/asm/arch_hweight.h:54:42: error: expected ':' or ')' before 'POPCNT64' asm (ALTERNATIVE("call __sw_hweight64", POPCNT64, X86_FEATURE_POPCNT) ^ arch/x86/include/asm/alternative.h:132:28: note: in definition of macro 'ALTINSTR_REPLACEMENT' b_replacement(num)":\n\t" newinstr "\n" e_replacement(num) ":\n\t" ^~~~~~~~ >> arch/x86/include/asm/arch_hweight.h:54:7: note: in expansion of macro 'ALTERNATIVE' asm (ALTERNATIVE("call __sw_hweight64", POPCNT64, X86_FEATURE_POPCNT) ^~~~~~~~~~~ make[2]: *** [kernel/bounds.s] Error 1 make[2]: Target '__build' not remade because of errors. make[1]: *** [prepare0] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [sub-make] Error 2
vim +54 arch/x86/include/asm/arch_hweight.h
d61931d8 Borislav Petkov 2010-03-05 38 static inline unsigned int __arch_hweight8(unsigned int w) d61931d8 Borislav Petkov 2010-03-05 39 { d61931d8 Borislav Petkov 2010-03-05 40 return __arch_hweight32(w & 0xff); d61931d8 Borislav Petkov 2010-03-05 41 } d61931d8 Borislav Petkov 2010-03-05 42 d14edb16 Denys Vlasenko 2015-08-04 43 #ifdef CONFIG_X86_32 d61931d8 Borislav Petkov 2010-03-05 44 static inline unsigned long __arch_hweight64(__u64 w) d61931d8 Borislav Petkov 2010-03-05 45 { d61931d8 Borislav Petkov 2010-03-05 46 return __arch_hweight32((u32)w) + d61931d8 Borislav Petkov 2010-03-05 47 __arch_hweight32((u32)(w >> 32)); d14edb16 Denys Vlasenko 2015-08-04 48 } d61931d8 Borislav Petkov 2010-03-05 49 #else d14edb16 Denys Vlasenko 2015-08-04 50 static __always_inline unsigned long __arch_hweight64(__u64 w) d14edb16 Denys Vlasenko 2015-08-04 51 { f5967101 Borislav Petkov 2016-05-30 52 unsigned long res; d14edb16 Denys Vlasenko 2015-08-04 53 c59bd568 H. Peter Anvin 2010-05-17 @54 asm (ALTERNATIVE("call __sw_hweight64", POPCNT64, X86_FEATURE_POPCNT) d61931d8 Borislav Petkov 2010-03-05 55 : "="REG_OUT (res) d61931d8 Borislav Petkov 2010-03-05 56 : REG_IN (w)); d61931d8 Borislav Petkov 2010-03-05 57 d61931d8 Borislav Petkov 2010-03-05 58 return res; d61931d8 Borislav Petkov 2010-03-05 59 } d14edb16 Denys Vlasenko 2015-08-04 60 #endif /* CONFIG_X86_32 */ d61931d8 Borislav Petkov 2010-03-05 61 d61931d8 Borislav Petkov 2010-03-05 62 #endif
:::::: The code at line 54 was first introduced by commit :::::: c59bd5688299cddb71183e156e7a3c1409b90df2 x86, hweight: Use a 32-bit popcnt for __arch_hweight32()
:::::: TO: H. Peter Anvin <hpa@linux.intel.com> :::::: CC: H. Peter Anvin <hpa@linux.intel.com>
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