linux-kernel - arch/arm/mach-omap1/serial.c:236:12: warning: no previous prototype for 'omap_serial_wakeup

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Message-ID: <202208141805.XynGMwka-lkp@intel.com>
Date:   Sun, 14 Aug 2022 18:35:31 +0800
From:   kernel test robot <lkp@...el.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: arch/arm/mach-omap1/serial.c:236:12: warning: no previous prototype
 for 'omap_serial_wakeup_init'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   aea23e7c464bfdec04b52cf61edb62030e9e0d0a
commit: 8c1fb11b8a77dc489a8ef6d96c38c1297b629d06 ARM: s3c: enable s3c24xx multiplatform support
date:   4 months ago
config: arm-randconfig-r006-20220805 (https://download.01.org/0day-ci/archive/20220814/202208141805.XynGMwka-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0
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=8c1fb11b8a77dc489a8ef6d96c38c1297b629d06
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 8c1fb11b8a77dc489a8ef6d96c38c1297b629d06
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> arch/arm/mach-omap1/serial.c:236:12: warning: no previous prototype for 'omap_serial_wakeup_init' [-Wmissing-prototypes]
     236 | int __init omap_serial_wakeup_init(void)
         |            ^~~~~~~~~~~~~~~~~~~~~~~


vim +/omap_serial_wakeup_init +236 arch/arm/mach-omap1/serial.c

7c38cf021b42a4 Tony Lindgren 2005-09-08  235  
82c3bd03535f15 Shawn Guo     2012-04-26 @236  int __init omap_serial_wakeup_init(void)
7c38cf021b42a4 Tony Lindgren 2005-09-08  237  {
7c38cf021b42a4 Tony Lindgren 2005-09-08  238  	if (!cpu_is_omap16xx())
7c38cf021b42a4 Tony Lindgren 2005-09-08  239  		return 0;
7c38cf021b42a4 Tony Lindgren 2005-09-08  240  
7c38cf021b42a4 Tony Lindgren 2005-09-08  241  	if (uart1_ck != NULL)
7c38cf021b42a4 Tony Lindgren 2005-09-08  242  		omap_serial_set_port_wakeup(37);
7c38cf021b42a4 Tony Lindgren 2005-09-08  243  	if (uart2_ck != NULL)
7c38cf021b42a4 Tony Lindgren 2005-09-08  244  		omap_serial_set_port_wakeup(18);
7c38cf021b42a4 Tony Lindgren 2005-09-08  245  	if (uart3_ck != NULL)
7c38cf021b42a4 Tony Lindgren 2005-09-08  246  		omap_serial_set_port_wakeup(49);
7c38cf021b42a4 Tony Lindgren 2005-09-08  247  
7c38cf021b42a4 Tony Lindgren 2005-09-08  248  	return 0;
7c38cf021b42a4 Tony Lindgren 2005-09-08  249  }
7c38cf021b42a4 Tony Lindgren 2005-09-08  250  

:::::: The code at line 236 was first introduced by commit
:::::: 82c3bd03535f1571426fdd19b7d832f76b7ac85e ARM: omap1: use machine specific hook for late init

:::::: TO: Shawn Guo <shawn.guo@...aro.org>
:::::: CC: Shawn Guo <shawn.guo@...aro.org>

-- 
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https://01.org/lkp