linux-kernel - [rt-devel:linux-5.18.y-rt-rebase 17/78] kernel/printk/printk.c:3182:13: warning: function 'console_emit_next_record' has internal linkage but is not defined

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Message-ID: <202204221737.XUqb9giP-lkp@intel.com>
Date:   Fri, 22 Apr 2022 17:48:11 +0800
From:   kernel test robot <lkp@...el.com>
To:     John Ogness <john.ogness@...utronix.de>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Subject: [rt-devel:linux-5.18.y-rt-rebase 17/78]
 kernel/printk/printk.c:3182:13: warning: function 'console_emit_next_record'
 has internal linkage but is not defined

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-5.18.y-rt-rebase
head:   03e7725ddbfb0ffd7f3d7b257bfa504c6f795f6b
commit: 72b5c1227b73b2cde1452cfc58717cff442ed473 [17/78] serial: 8250: implement write_atomic
config: hexagon-randconfig-r002-20220422 (https://download.01.org/0day-ci/archive/20220422/202204221737.XUqb9giP-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 5bd87350a5ae429baf8f373cb226a57b62f87280)
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/rt/linux-rt-devel.git/commit/?id=72b5c1227b73b2cde1452cfc58717cff442ed473
        git remote add rt-devel https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git
        git fetch --no-tags rt-devel linux-5.18.y-rt-rebase
        git checkout 72b5c1227b73b2cde1452cfc58717cff442ed473
        # 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=hexagon SHELL=/bin/bash kernel/printk/

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 >>):

   kernel/printk/printk.c:3187:7: warning: variable 'any_usable' set but not used [-Wunused-but-set-variable]
           bool any_usable = false;
                ^
>> kernel/printk/printk.c:3182:13: warning: function 'console_emit_next_record' has internal linkage but is not defined [-Wundefined-internal]
   static bool console_emit_next_record(struct console *con, char *text, char *ext_text,
               ^
   kernel/printk/printk.c:3215:16: note: used here
                                   progress = console_emit_next_record(con,
                                              ^
   2 warnings generated.


vim +/console_emit_next_record +3182 kernel/printk/printk.c

fe3d8ad31cf51b kernel/printk.c        Feng Tang   2011-03-22  3180  
943b66638a0519 kernel/printk/printk.c John Ogness 2022-02-04  3181  #ifdef CONFIG_HAVE_ATOMIC_CONSOLE
943b66638a0519 kernel/printk/printk.c John Ogness 2022-02-04 @3182  static bool console_emit_next_record(struct console *con, char *text, char *ext_text,
943b66638a0519 kernel/printk/printk.c John Ogness 2022-02-04  3183  				     char *dropped_text, bool atomic_printing);
943b66638a0519 kernel/printk/printk.c John Ogness 2022-02-04  3184  

:::::: The code at line 3182 was first introduced by commit
:::::: 943b66638a0519612cdc25dcb07f59af89d37407 printk: add infrastucture for atomic consoles

:::::: TO: John Ogness <john.ogness@...utronix.de>
:::::: CC: Sebastian Andrzej Siewior <bigeasy@...utronix.de>

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