[cxl:pending 20/22] drivers/cxl/core/suspend.c:8:6: warning: no previous prototype for function 'cxl_mem_active'

From: kernel test robot
Date: Fri Apr 15 2022 - 01:51:21 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git pending
head: 4f497e0dd3530981f8c897d5d47ee880b62baefb
commit: fcf0b70f7e80f49f323cc21b8a497a24151d9c28 [20/22] PM: CXL: Disable suspend
config: i386-randconfig-a013 (https://download.01.org/0day-ci/archive/20220415/202204151330.tjVHw5dN-lkp@xxxxxxxxx/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 6b7e6ea489f6dd45a9b0da9ac20871560917b9b0)
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/cxl/cxl.git/commit/?id=fcf0b70f7e80f49f323cc21b8a497a24151d9c28
git remote add cxl https://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git
git fetch --no-tags cxl pending
git checkout fcf0b70f7e80f49f323cc21b8a497a24151d9c28
# 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=i386 SHELL=/bin/bash drivers/cxl/core/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

>> drivers/cxl/core/suspend.c:8:6: warning: no previous prototype for function 'cxl_mem_active' [-Wmissing-prototypes]
bool cxl_mem_active(void)
^
drivers/cxl/core/suspend.c:8:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
bool cxl_mem_active(void)
^
static
>> drivers/cxl/core/suspend.c:13:6: warning: no previous prototype for function 'cxl_mem_active_inc' [-Wmissing-prototypes]
void cxl_mem_active_inc(void)
^
drivers/cxl/core/suspend.c:13:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void cxl_mem_active_inc(void)
^
static
>> drivers/cxl/core/suspend.c:19:6: warning: no previous prototype for function 'cxl_mem_active_dec' [-Wmissing-prototypes]
void cxl_mem_active_dec(void)
^
drivers/cxl/core/suspend.c:19:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void cxl_mem_active_dec(void)
^
static
3 warnings generated.


vim +/cxl_mem_active +8 drivers/cxl/core/suspend.c

7
> 8 bool cxl_mem_active(void)
9 {
10 return atomic_read(&mem_active) != 0;
11 }
12
> 13 void cxl_mem_active_inc(void)
14 {
15 atomic_inc(&mem_active);
16 }
17 EXPORT_SYMBOL_NS_GPL(cxl_mem_active_inc, CXL);
18
> 19 void cxl_mem_active_dec(void)

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https://01.org/lkp