linux-kernel - arch/mips/boot/compressed/uart-16550.c:44:6: warning: no previous prototype for 'putc'

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:   Tue, 5 Apr 2022 06:12:32 +0800
From:   kernel test robot <lkp@...el.com>
To:     YunQiang Su <yunqiang.su@...united.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Subject: arch/mips/boot/compressed/uart-16550.c:44:6: warning: no previous
 prototype for 'putc'

Hi YunQiang,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   3123109284176b1532874591f7c81f3837bbdc17
commit: 31b2f3dc851c65fee288612432c4fc956f1a264e MIPS: enable both vmlinux.gz.itb and vmlinuz for generic
date:   3 months ago
config: mips-randconfig-r033-20220404 (https://download.01.org/0day-ci/archive/20220405/202204050616.vblP4zPu-lkp@intel.com/config)
compiler: mipsel-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=31b2f3dc851c65fee288612432c4fc956f1a264e
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 31b2f3dc851c65fee288612432c4fc956f1a264e
        # 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 >>):

>> arch/mips/boot/compressed/uart-16550.c:44:6: warning: no previous prototype for 'putc' [-Wmissing-prototypes]
      44 | void putc(char c)
         |      ^~~~


vim +/putc +44 arch/mips/boot/compressed/uart-16550.c

1b93b3c3e94be2 Wu Zhangjin 2009-10-14  43  
1b93b3c3e94be2 Wu Zhangjin 2009-10-14 @44  void putc(char c)

:::::: The code at line 44 was first introduced by commit
:::::: 1b93b3c3e94be2605759735a89fc935ba5f58dcf MIPS: Add support for GZIP / BZIP2 / LZMA compressed kernel images

:::::: TO: Wu Zhangjin <wuzhangjin@...il.com>
:::::: CC: Ralf Baechle <ralf@...ux-mips.org>

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp