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Date: Fri, 18 Mar 2022 07:01:39 +0800 From: kernel test robot <lkp@...el.com> To: Masahiro Yamada <masahiroy@...nel.org> Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org, Thomas Bogendoerfer <tsbogend@...ha.franken.de> Subject: arch/mips/boot/compressed/../../lib/bswapdi.c:5:28: warning: no previous prototype for '__bswapdi2' Hi Masahiro, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 56e337f2cf1326323844927a04e9dbce9a244835 commit: f78b25ee922ef6faf59a258af1b9388ca894cfd9 mips: decompressor: do not copy source files while building date: 4 months ago config: mips-randconfig-r036-20220317 (https://download.01.org/0day-ci/archive/20220318/202203180644.cQo8rUA8-lkp@intel.com/config) compiler: mips-linux-gcc (GCC) 11.2.0 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 # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f78b25ee922ef6faf59a258af1b9388ca894cfd9 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout f78b25ee922ef6faf59a258af1b9388ca894cfd9 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=mips SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@...el.com> All warnings (new ones prefixed by >>): In file included from arch/mips/boot/compressed/bswapdi.c:2: >> arch/mips/boot/compressed/../../lib/bswapdi.c:5:28: warning: no previous prototype for '__bswapdi2' [-Wmissing-prototypes] 5 | unsigned long long notrace __bswapdi2(unsigned long long u) | ^~~~~~~~~~ vim +/__bswapdi2 +5 arch/mips/boot/compressed/../../lib/bswapdi.c 1ee3630a3e57f3 Ralf Baechle 2015-09-29 4 aedcfbe06558a9 Harvey Hunt 2016-05-25 @5 unsigned long long notrace __bswapdi2(unsigned long long u) 1ee3630a3e57f3 Ralf Baechle 2015-09-29 6 { 1ee3630a3e57f3 Ralf Baechle 2015-09-29 7 return (((u) & 0xff00000000000000ull) >> 56) | 1ee3630a3e57f3 Ralf Baechle 2015-09-29 8 (((u) & 0x00ff000000000000ull) >> 40) | 1ee3630a3e57f3 Ralf Baechle 2015-09-29 9 (((u) & 0x0000ff0000000000ull) >> 24) | 1ee3630a3e57f3 Ralf Baechle 2015-09-29 10 (((u) & 0x000000ff00000000ull) >> 8) | 1ee3630a3e57f3 Ralf Baechle 2015-09-29 11 (((u) & 0x00000000ff000000ull) << 8) | 1ee3630a3e57f3 Ralf Baechle 2015-09-29 12 (((u) & 0x0000000000ff0000ull) << 24) | 1ee3630a3e57f3 Ralf Baechle 2015-09-29 13 (((u) & 0x000000000000ff00ull) << 40) | 1ee3630a3e57f3 Ralf Baechle 2015-09-29 14 (((u) & 0x00000000000000ffull) << 56); 1ee3630a3e57f3 Ralf Baechle 2015-09-29 15 } 1ee3630a3e57f3 Ralf Baechle 2015-09-29 16 :::::: The code at line 5 was first introduced by commit :::::: aedcfbe06558a9f53002e82d5be64c6c94687726 MIPS: lib: Mark intrinsics notrace :::::: TO: Harvey Hunt <harvey.hunt@...tec.com> :::::: CC: Ralf Baechle <ralf@...ux-mips.org> --- 0-DAY CI Kernel Test Service https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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