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Subjectarch/arm/mach-pxa/corgi_pm.c:137:15: warning: no previous prototype for function 'corgipm_read_devdata'
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 941e3e7912696b9fbe3586083a7c2e102cee7a87
commit: 8c1fb11b8a77dc489a8ef6d96c38c1297b629d06 ARM: s3c: enable s3c24xx multiplatform support
date: 3 months ago
config: arm-buildonly-randconfig-r001-20220627 (https://download.01.org/0day-ci/archive/20220628/202206281334.Hj0eme5G-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 016342e319fd31e41cf5ed16a6140a8ea2de74dd)
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
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# 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=clang 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@intel.com>

All warnings (new ones prefixed by >>):

>> arch/arm/mach-pxa/corgi_pm.c:137:15: warning: no previous prototype for function 'corgipm_read_devdata' [-Wmissing-prototypes]
unsigned long corgipm_read_devdata(int type)
^
arch/arm/mach-pxa/corgi_pm.c:137:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
unsigned long corgipm_read_devdata(int type)
^
static
1 warning generated.


vim +/corgipm_read_devdata +137 arch/arm/mach-pxa/corgi_pm.c

d72f25b0dfb080 Richard Purdie 2005-11-13 136
b7557de41a0434 Richard Purdie 2006-01-05 @137 unsigned long corgipm_read_devdata(int type)
d72f25b0dfb080 Richard Purdie 2005-11-13 138 {
b7557de41a0434 Richard Purdie 2006-01-05 139 switch(type) {
b7557de41a0434 Richard Purdie 2006-01-05 140 case SHARPSL_STATUS_ACIN:
9bf448c66d4b4c Haojian Zhuang 2011-10-17 141 return !gpio_get_value(CORGI_GPIO_AC_IN);
b7557de41a0434 Richard Purdie 2006-01-05 142 case SHARPSL_STATUS_LOCK:
05732d7eb0d7f7 Eric Miao 2010-07-04 143 return gpio_get_value(sharpsl_pm.machinfo->gpio_batlock);
b7557de41a0434 Richard Purdie 2006-01-05 144 case SHARPSL_STATUS_CHRGFULL:
05732d7eb0d7f7 Eric Miao 2010-07-04 145 return gpio_get_value(sharpsl_pm.machinfo->gpio_batfull);
b7557de41a0434 Richard Purdie 2006-01-05 146 case SHARPSL_STATUS_FATAL:
05732d7eb0d7f7 Eric Miao 2010-07-04 147 return gpio_get_value(sharpsl_pm.machinfo->gpio_fatal);
b7557de41a0434 Richard Purdie 2006-01-05 148 case SHARPSL_ACIN_VOLT:
b7557de41a0434 Richard Purdie 2006-01-05 149 return sharpsl_pm_pxa_read_max1111(MAX1111_ACIN_VOLT);
b7557de41a0434 Richard Purdie 2006-01-05 150 case SHARPSL_BATT_TEMP:
b7557de41a0434 Richard Purdie 2006-01-05 151 return sharpsl_pm_pxa_read_max1111(MAX1111_BATT_TEMP);
b7557de41a0434 Richard Purdie 2006-01-05 152 case SHARPSL_BATT_VOLT:
b7557de41a0434 Richard Purdie 2006-01-05 153 default:
b7557de41a0434 Richard Purdie 2006-01-05 154 return sharpsl_pm_pxa_read_max1111(MAX1111_BATT_VOLT);
b7557de41a0434 Richard Purdie 2006-01-05 155 }
d72f25b0dfb080 Richard Purdie 2005-11-13 156 }
d72f25b0dfb080 Richard Purdie 2005-11-13 157

:::::: The code at line 137 was first introduced by commit
:::::: b7557de41a04346cb545d4dda7088760cb96e713 [ARM] 3228/1: SharpSL: Move PM code to arch/arm/common

:::::: TO: Richard Purdie <rpurdie@rpsys.net>
:::::: CC: Russell King <rmk+kernel@arm.linux.org.uk>

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

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