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Sat, 15 Apr 2023 19:54:51 +0000 Date: Sun, 16 Apr 2023 03:54:30 +0800 From: kernel test robot To: Nathan Chancellor Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, "Russell King (Oracle)" Subject: arch/arm/mach-sa1100/assabet.c:746:13: warning: no previous prototype for function 'assabet_init_irq' Message-ID: <202304160350.FfJdKRPG-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Nathan, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 7a934f4bd7d6f9da84c8812da3ba42ee10f5778e commit: 5eb6e280432ddc9b755193552f3a070da8d7455c ARM: 9289/1: Allow pre-ARMv5 builds with ld.lld 16.0.0 and newer date: 2 months ago config: arm-neponset_defconfig (https://download.01.org/0day-ci/archive/20230416/202304160350.FfJdKRPG-lkp@intel.com/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 9638da200e00bd069e6dd63604e14cbafede9324) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5eb6e280432ddc9b755193552f3a070da8d7455c git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 5eb6e280432ddc9b755193552f3a070da8d7455c # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash arch/arm/common/ arch/arm/mach-sa1100/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot | Link: https://lore.kernel.org/oe-kbuild-all/202304160350.FfJdKRPG-lkp@intel.com/ All warnings (new ones prefixed by >>): >> arch/arm/mach-sa1100/assabet.c:746:13: warning: no previous prototype for function 'assabet_init_irq' [-Wmissing-prototypes] void __init assabet_init_irq(void) ^ arch/arm/mach-sa1100/assabet.c:746:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __init assabet_init_irq(void) ^ static 1 warning generated. -- >> arch/arm/common/sa1111.c:699:1: warning: no previous prototype for function 'sa1111_configure_smc' [-Wmissing-prototypes] sa1111_configure_smc(struct sa1111 *sachip, int sdram, unsigned int drac, ^ arch/arm/common/sa1111.c:698:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void ^ static 1 warning generated. vim +/assabet_init_irq +746 arch/arm/mach-sa1100/assabet.c ^1da177e4c3f41 Linus Torvalds 2005-04-16 745 b955153bfa68d7 Russell King 2016-08-31 @746 void __init assabet_init_irq(void) b955153bfa68d7 Russell King 2016-08-31 747 { b955153bfa68d7 Russell King 2016-08-31 748 u32 def_val; b955153bfa68d7 Russell King 2016-08-31 749 b955153bfa68d7 Russell King 2016-08-31 750 sa1100_init_irq(); b955153bfa68d7 Russell King 2016-08-31 751 b955153bfa68d7 Russell King 2016-08-31 752 if (machine_has_neponset()) b955153bfa68d7 Russell King 2016-08-31 753 def_val = ASSABET_BCR_DB1111; b955153bfa68d7 Russell King 2016-08-31 754 else b955153bfa68d7 Russell King 2016-08-31 755 def_val = ASSABET_BCR_DB1110; b955153bfa68d7 Russell King 2016-08-31 756 b955153bfa68d7 Russell King 2016-08-31 757 /* b955153bfa68d7 Russell King 2016-08-31 758 * Angel sets this, but other bootloaders may not. b955153bfa68d7 Russell King 2016-08-31 759 * b955153bfa68d7 Russell King 2016-08-31 760 * This must precede any driver calls to BCR_set() or BCR_clear(). b955153bfa68d7 Russell King 2016-08-31 761 */ 20a451f8db4a81 Linus Walleij 2021-07-20 762 assabet_init_gpio((void *)&ASSABET_BCR, def_val); b955153bfa68d7 Russell King 2016-08-31 763 } b955153bfa68d7 Russell King 2016-08-31 764 :::::: The code at line 746 was first introduced by commit :::::: b955153bfa68d7a9fa2be40bb606cf9578b66511 ARM: sa1100/assabet: add BCR/BSR GPIO driver :::::: TO: Russell King :::::: CC: Russell King -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests