linux-kernel - [ammarfaizi2-block:google/android/kernel/common/android11-kiwi-5.4 2422/9999] kernel/power/wakeup_reason.c:199:6: warning: no previous prototype for function '__log_abort_or_abnormal

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Date:   Sat, 8 Jan 2022 13:56:48 +0800
From:   kernel test robot <lkp@...el.com>
To:     Kelly Rossmoyer <krossmo@...gle.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, Alistair Delva <adelva@...gle.com>
Subject: [ammarfaizi2-block:google/android/kernel/common/android11-kiwi-5.4
 2422/9999] kernel/power/wakeup_reason.c:199:6: warning: no previous
 prototype for function '__log_abort_or_abnormal_wake'

Hi Kelly,

FYI, the error/warning still remains.

tree:   https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android11-kiwi-5.4
head:   7d1d5848183bd1d9086d0572f9af431d3ded407f
commit: 189ced91cd7b0e440b0be876406fd36313a11c3f [2422/9999] ANDROID: power: wakeup_reason: wake reason enhancements
config: x86_64-randconfig-a014-20220107 (https://download.01.org/0day-ci/archive/20220108/202201081335.QloPko7J-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project f3a344d2125fa37e59bae1b0874442c650a19607)
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://github.com/ammarfaizi2/linux-block/commit/189ced91cd7b0e440b0be876406fd36313a11c3f
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android11-kiwi-5.4
        git checkout 189ced91cd7b0e440b0be876406fd36313a11c3f
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash kernel/power/

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/power/wakeup_reason.c:199:6: warning: no previous prototype for function '__log_abort_or_abnormal_wake' [-Wmissing-prototypes]
   void __log_abort_or_abnormal_wake(bool abort, const char *fmt, va_list args)
        ^
   kernel/power/wakeup_reason.c:199:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void __log_abort_or_abnormal_wake(bool abort, const char *fmt, va_list args)
   ^
   static 
   kernel/power/wakeup_reason.c:378:12: warning: no previous prototype for function 'wakeup_reason_init' [-Wmissing-prototypes]
   int __init wakeup_reason_init(void)
              ^
   kernel/power/wakeup_reason.c:378:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int __init wakeup_reason_init(void)
   ^
   static 
   2 warnings generated.


vim +/__log_abort_or_abnormal_wake +199 kernel/power/wakeup_reason.c

   198	
 > 199	void __log_abort_or_abnormal_wake(bool abort, const char *fmt, va_list args)
   200	{
   201		unsigned long flags;
   202	
   203		spin_lock_irqsave(&wakeup_reason_lock, flags);
   204	
   205		/* Suspend abort or abnormal wake reason has already been logged. */
   206		if (suspend_abort || abnormal_wake) {
   207			spin_unlock_irqrestore(&wakeup_reason_lock, flags);
   208			return;
   209		}
   210	
   211		suspend_abort = abort;
   212		abnormal_wake = !abort;
   213		vsnprintf(non_irq_wake_reason, MAX_SUSPEND_ABORT_LEN, fmt, args);
   214	
   215		spin_unlock_irqrestore(&wakeup_reason_lock, flags);
   216	}
   217	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org