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X-CSE-ConnectionGUID: GWASgA/mQyeJ0DiOuzu+ZQ== X-CSE-MsgGUID: fe0AQ6xoQDiSlZFHHk6ZmQ== X-IronPort-AV: E=McAfee;i="6800,10657,11879"; a="99182634" X-IronPort-AV: E=Sophos;i="6.25,231,1779174000"; d="scan'208";a="99182634" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by orvoesa104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Aug 2026 06:10:11 -0700 X-CSE-ConnectionGUID: WQu4Fpo9SDaGb/h5t6pCVg== X-CSE-MsgGUID: 2d1NGnMdSQedicxGuMhyww== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,231,1779174000"; d="scan'208";a="263796865" Received: from igk-lkp-server01.igk.intel.com (HELO 3cba2a188a06) ([10.211.93.152]) by orviesa006.jf.intel.com with ESMTP; 19 Aug 2026 06:10:09 -0700 Received: from kbuild by 3cba2a188a06 with local (Exim 4.98.2) (envelope-from ) id 1wwg3T-000000007NJ-3PIV; Wed, 19 Aug 2026 13:10:07 +0000 Date: Wed, 19 Aug 2026 15:09:43 +0200 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com Subject: [modules:ppavlu-module-include 36/37] arch/s390/include/asm/module.h:49:21: error: implicit declaration of function 'strcmp' Message-ID: <202608191517.EjXHewtK-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: :::::: :::::: Manual check reason: "low confidence bisect report" :::::: BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev CC: Luis Chamberlain CC: Petr Pavlu CC: Sami Tolvanen CC: Daniel Gomez CC: linux-modules@vger.kernel.org TO: Petr Pavlu tree: https://git.kernel.org/pub/scm/linux/kernel/git/modules/linux.git ppavlu-module-include head: fcbfd3cbe0a054838436812cc0b664f71ba1d0a4 commit: acb4d9bafad10e9712a74d71304a4f3a404eb4ec [36/37] WIP: module: Clean up includes in linux/module.h :::::: branch date: 2 hours ago :::::: commit date: 2 hours ago config: s390-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20260819/202608191517.EjXHewtK-lkp@intel.com/config) compiler: s390x-linux-gnu-gcc (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260819/202608191517.EjXHewtK-lkp@intel.com/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 | Closes: https://lore.kernel.org/r/202608191517.EjXHewtK-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from include/linux/module.h:28, from ../../../drivers/nvdimm/namespace_devs.c:6: arch/s390/include/asm/module.h: In function 'find_section': >> arch/s390/include/asm/module.h:49:21: error: implicit declaration of function 'strcmp' [-Wimplicit-function-declaration] 49 | if (strcmp(name, secstrs + s->sh_name) == 0) | ^~~~~~ arch/s390/include/asm/module.h:6:1: note: include '' or provide a declaration of 'strcmp' 5 | #include +++ |+#include 6 | vim +/strcmp +49 arch/s390/include/asm/module.h ^1da177e4c3f41 include/asm-s390/module.h Linus Torvalds 2005-04-16 40 a919390e919420 arch/s390/include/asm/module.h Heiko Carstens 2024-09-13 41 static inline const Elf_Shdr *find_section(const Elf_Ehdr *hdr, a919390e919420 arch/s390/include/asm/module.h Heiko Carstens 2024-09-13 42 const Elf_Shdr *sechdrs, a919390e919420 arch/s390/include/asm/module.h Heiko Carstens 2024-09-13 43 const char *name) a919390e919420 arch/s390/include/asm/module.h Heiko Carstens 2024-09-13 44 { a919390e919420 arch/s390/include/asm/module.h Heiko Carstens 2024-09-13 45 const char *secstrs = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; a919390e919420 arch/s390/include/asm/module.h Heiko Carstens 2024-09-13 46 const Elf_Shdr *s, *se; a919390e919420 arch/s390/include/asm/module.h Heiko Carstens 2024-09-13 47 a919390e919420 arch/s390/include/asm/module.h Heiko Carstens 2024-09-13 48 for (s = sechdrs, se = sechdrs + hdr->e_shnum; s < se; s++) { a919390e919420 arch/s390/include/asm/module.h Heiko Carstens 2024-09-13 @49 if (strcmp(name, secstrs + s->sh_name) == 0) a919390e919420 arch/s390/include/asm/module.h Heiko Carstens 2024-09-13 50 return s; a919390e919420 arch/s390/include/asm/module.h Heiko Carstens 2024-09-13 51 } a919390e919420 arch/s390/include/asm/module.h Heiko Carstens 2024-09-13 52 return NULL; a919390e919420 arch/s390/include/asm/module.h Heiko Carstens 2024-09-13 53 } a919390e919420 arch/s390/include/asm/module.h Heiko Carstens 2024-09-13 54 :::::: The code at line 49 was first introduced by commit :::::: a919390e9194209bac163ec8e19520bdb3fb738b s390/module: Provide find_section() helper :::::: TO: Heiko Carstens :::::: CC: Jason A. Donenfeld -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki