From: kernel test robot <lkp@intel.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org,
Daniel Vetter <daniel.vetter@ffwll.ch>,
Kees Cook <keescook@chromium.org>
Subject: arch/mips/boot/compressed/dbg.c:12:13: warning: no previous prototype for 'putc'
Date: Sat, 9 Jul 2022 05:10:32 +0800 [thread overview]
Message-ID: <202207090522.nxw0ERcT-lkp@intel.com> (raw)
Hi Arnd,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: a471da3100ef2e8feb8449d378a52e29dd1e9ae1
commit: 606b102876e3741851dfb09d53f3ee57f650a52c drm: fb_helper: fix CONFIG_FB dependency
date: 9 months ago
config: mips-randconfig-r015-20220708 (https://download.01.org/0day-ci/archive/20220709/202207090522.nxw0ERcT-lkp@intel.com/config)
compiler: mipsel-linux-gcc (GCC) 11.3.0
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=606b102876e3741851dfb09d53f3ee57f650a52c
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 606b102876e3741851dfb09d53f3ee57f650a52c
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
Note: functions only called from assembly code should be annotated with the asmlinkage attribute
All warnings (new ones prefixed by >>):
>> arch/mips/boot/compressed/dbg.c:12:13: warning: no previous prototype for 'putc' [-Wmissing-prototypes]
12 | void __weak putc(char c)
| ^~~~
>> arch/mips/boot/compressed/dbg.c:16:6: warning: no previous prototype for 'puts' [-Wmissing-prototypes]
16 | void puts(const char *s)
| ^~~~
>> arch/mips/boot/compressed/dbg.c:26:6: warning: no previous prototype for 'puthex' [-Wmissing-prototypes]
26 | void puthex(unsigned long long val)
| ^~~~~~
--
>> arch/mips/boot/compressed/uart-alchemy.c:4:6: warning: no previous prototype for 'putc' [-Wmissing-prototypes]
4 | void putc(char c)
| ^~~~
vim +/putc +12 arch/mips/boot/compressed/dbg.c
1b93b3c3e94be2 Wu Zhangjin 2009-10-14 11
e52dd9fc6b9e0c Wu Zhangjin 2010-01-26 @12 void __weak putc(char c)
1b93b3c3e94be2 Wu Zhangjin 2009-10-14 13 {
1b93b3c3e94be2 Wu Zhangjin 2009-10-14 14 }
1b93b3c3e94be2 Wu Zhangjin 2009-10-14 15
1b93b3c3e94be2 Wu Zhangjin 2009-10-14 @16 void puts(const char *s)
1b93b3c3e94be2 Wu Zhangjin 2009-10-14 17 {
1b93b3c3e94be2 Wu Zhangjin 2009-10-14 18 char c;
1b93b3c3e94be2 Wu Zhangjin 2009-10-14 19 while ((c = *s++) != '\0') {
1b93b3c3e94be2 Wu Zhangjin 2009-10-14 20 putc(c);
1b93b3c3e94be2 Wu Zhangjin 2009-10-14 21 if (c == '\n')
1b93b3c3e94be2 Wu Zhangjin 2009-10-14 22 putc('\r');
1b93b3c3e94be2 Wu Zhangjin 2009-10-14 23 }
1b93b3c3e94be2 Wu Zhangjin 2009-10-14 24 }
1b93b3c3e94be2 Wu Zhangjin 2009-10-14 25
1b93b3c3e94be2 Wu Zhangjin 2009-10-14 @26 void puthex(unsigned long long val)
:::::: The code at line 12 was first introduced by commit
:::::: e52dd9fc6b9e0c17b220bd38371ff15032a1a155 MIPS: Simplify the weak annotation with __weak
:::::: TO: Wu Zhangjin <wuzhangjin@gmail.com>
:::::: CC: Ralf Baechle <ralf@linux-mips.org>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
next reply other threads:[~2022-07-08 21:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-08 21:10 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2022-12-05 6:51 arch/mips/boot/compressed/dbg.c:12:13: warning: no previous prototype for 'putc' kernel test robot
2022-04-22 0:18 kernel test robot
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