Hi Masahiro, I love your patch! Perhaps something to improve: [auto build test WARNING on linus/master] [cannot apply to v5.3-rc3 next-20190809] [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/Masahiro-Yamada/kbuild-re-implement-detection-of-CONFIG-options-leaked-to-user-space/20190811-085800 config: arc-allyesconfig (attached as .config) compiler: arc-elf-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=arc If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): warning: include/uapi/asm-generic/fcntl.h: leak CONFIG_64BIT to user-space warning: include/uapi/linux/raw.h: leak CONFIG_MAX_RAW_DEVS to user-space warning: include/uapi/linux/pktcdvd.h: leak CONFIG_CDROM_PKTCDVD_WCACHE to user-space warning: include/uapi/linux/hw_breakpoint.h: leak CONFIG_HAVE_MIXED_BREAKPOINTS_REGS to user-space warning: include/uapi/linux/eventpoll.h: leak CONFIG_PM_SLEEP to user-space warning: include/uapi/linux/elfcore.h: leak CONFIG_BINFMT_ELF_FDPIC to user-space warning: include/uapi/linux/atmdev.h: leak CONFIG_COMPAT to user-space >> warning: arch/arc/include/uapi/asm/swab.h: leak CONFIG_ARC_HAS_SWAPE to user-space >> warning: arch/arc/include/uapi/asm/page.h: leak CONFIG_ARC_PAGE_SIZE_16K to user-space >> warning: arch/arc/include/uapi/asm/page.h: leak CONFIG_ARC_PAGE_SIZE_4K to user-space In file included from arch/arc/include/asm/atomic.h:13:0, from include/linux/atomic.h:7, from include/asm-generic/bitops/lock.h:5, from arch/arc/include/asm/bitops.h:426, from include/linux/bitops.h:19, from include/linux/kernel.h:12, from include/asm-generic/bug.h:18, from arch/arc/include/asm/bug.h:29, from include/linux/bug.h:5, from include/linux/page-flags.h:10, from kernel/bounds.c:10: arch/arc/include/asm/cmpxchg.h: In function '__xchg': arch/arc/include/asm/cmpxchg.h:191:19: error: 'CTOP_INST_XEX_DI_R2_R2_R3' undeclared (first use in this function) : "r"(ptr), "i"(CTOP_INST_XEX_DI_R2_R2_R3) ^~~~~~~~~~~~~~~~~~~~~~~~~ arch/arc/include/asm/cmpxchg.h:191:19: note: each undeclared identifier is reported only once for each function it appears in In file included from include/linux/atomic.h:7:0, from include/asm-generic/bitops/lock.h:5, from arch/arc/include/asm/bitops.h:426, from include/linux/bitops.h:19, from include/linux/kernel.h:12, from include/asm-generic/bug.h:18, from arch/arc/include/asm/bug.h:29, from include/linux/bug.h:5, from include/linux/page-flags.h:10, from kernel/bounds.c:10: arch/arc/include/asm/atomic.h: In function 'atomic_add': arch/arc/include/asm/atomic.h:286:21: error: 'CTOP_INST_AADD_DI_R2_R2_R3' undeclared (first use in this function) ATOMIC_OPS(add, +=, CTOP_INST_AADD_DI_R2_R2_R3) ^ arch/arc/include/asm/atomic.h:231:34: note: in definition of macro 'ATOMIC_OP' : "r"(i), "r"(&v->counter), "i"(asm_op) \ ^~~~~~ arch/arc/include/asm/atomic.h:286:1: note: in expansion of macro 'ATOMIC_OPS' ATOMIC_OPS(add, +=, CTOP_INST_AADD_DI_R2_R2_R3) ^~~~~~~~~~ arch/arc/include/asm/atomic.h: In function 'atomic_add_return': arch/arc/include/asm/atomic.h:286:21: error: 'CTOP_INST_AADD_DI_R2_R2_R3' undeclared (first use in this function) ATOMIC_OPS(add, +=, CTOP_INST_AADD_DI_R2_R2_R3) ^ arch/arc/include/asm/atomic.h:249:26: note: in definition of macro 'ATOMIC_OP_RETURN' : "r"(&v->counter), "i"(asm_op) \ ^~~~~~ arch/arc/include/asm/atomic.h:286:1: note: in expansion of macro 'ATOMIC_OPS' ATOMIC_OPS(add, +=, CTOP_INST_AADD_DI_R2_R2_R3) ^~~~~~~~~~ arch/arc/include/asm/atomic.h: In function 'atomic_fetch_add': arch/arc/include/asm/atomic.h:286:21: error: 'CTOP_INST_AADD_DI_R2_R2_R3' undeclared (first use in this function) ATOMIC_OPS(add, +=, CTOP_INST_AADD_DI_R2_R2_R3) ^ arch/arc/include/asm/atomic.h:273:26: note: in definition of macro 'ATOMIC_FETCH_OP' : "r"(&v->counter), "i"(asm_op) \ ^~~~~~ arch/arc/include/asm/atomic.h:286:1: note: in expansion of macro 'ATOMIC_OPS' ATOMIC_OPS(add, +=, CTOP_INST_AADD_DI_R2_R2_R3) ^~~~~~~~~~ arch/arc/include/asm/atomic.h: In function 'atomic_and': arch/arc/include/asm/atomic.h:296:21: error: 'CTOP_INST_AAND_DI_R2_R2_R3' undeclared (first use in this function) ATOMIC_OPS(and, &=, CTOP_INST_AAND_DI_R2_R2_R3) ^ arch/arc/include/asm/atomic.h:231:34: note: in definition of macro 'ATOMIC_OP' : "r"(i), "r"(&v->counter), "i"(asm_op) \ ^~~~~~ arch/arc/include/asm/atomic.h:296:1: note: in expansion of macro 'ATOMIC_OPS' ATOMIC_OPS(and, &=, CTOP_INST_AAND_DI_R2_R2_R3) ^~~~~~~~~~ arch/arc/include/asm/atomic.h: In function 'atomic_fetch_and': arch/arc/include/asm/atomic.h:296:21: error: 'CTOP_INST_AAND_DI_R2_R2_R3' undeclared (first use in this function) ATOMIC_OPS(and, &=, CTOP_INST_AAND_DI_R2_R2_R3) ^ arch/arc/include/asm/atomic.h:273:26: note: in definition of macro 'ATOMIC_FETCH_OP' : "r"(&v->counter), "i"(asm_op) \ ^~~~~~ arch/arc/include/asm/atomic.h:296:1: note: in expansion of macro 'ATOMIC_OPS' ATOMIC_OPS(and, &=, CTOP_INST_AAND_DI_R2_R2_R3) ^~~~~~~~~~ arch/arc/include/asm/atomic.h: In function 'atomic_or': arch/arc/include/asm/atomic.h:297:20: error: 'CTOP_INST_AOR_DI_R2_R2_R3' undeclared (first use in this function) ATOMIC_OPS(or, |=, CTOP_INST_AOR_DI_R2_R2_R3) ^ arch/arc/include/asm/atomic.h:231:34: note: in definition of macro 'ATOMIC_OP' : "r"(i), "r"(&v->counter), "i"(asm_op) \ ^~~~~~ arch/arc/include/asm/atomic.h:297:1: note: in expansion of macro 'ATOMIC_OPS' ATOMIC_OPS(or, |=, CTOP_INST_AOR_DI_R2_R2_R3) ^~~~~~~~~~ arch/arc/include/asm/atomic.h: In function 'atomic_fetch_or': arch/arc/include/asm/atomic.h:297:20: error: 'CTOP_INST_AOR_DI_R2_R2_R3' undeclared (first use in this function) ATOMIC_OPS(or, |=, CTOP_INST_AOR_DI_R2_R2_R3) ^ arch/arc/include/asm/atomic.h:273:26: note: in definition of macro 'ATOMIC_FETCH_OP' : "r"(&v->counter), "i"(asm_op) \ ^~~~~~ arch/arc/include/asm/atomic.h:297:1: note: in expansion of macro 'ATOMIC_OPS' ATOMIC_OPS(or, |=, CTOP_INST_AOR_DI_R2_R2_R3) ^~~~~~~~~~ arch/arc/include/asm/atomic.h: In function 'atomic_xor': arch/arc/include/asm/atomic.h:298:21: error: 'CTOP_INST_AXOR_DI_R2_R2_R3' undeclared (first use in this function) ATOMIC_OPS(xor, ^=, CTOP_INST_AXOR_DI_R2_R2_R3) ^ --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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