Re: kernel/rcu/tasks.h:1031:6: warning: no previous prototype for 'show_rcu_tasks_gp_kthreads'

2021-04-20 Thread Paul E. McKenney 
On Tue, Apr 20, 2021 at 02:56:30PM +0800, kernel test robot wrote:
> Hi Paul,
> 
> FYI, the error/warning still remains.
> 
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
> master
> head:   7af08140979a6e7e12b78c93b8625c8d25b084e2
> commit: e21408ceec2de5be418efa39feb1e2c00f824a72 rcu-tasks: Add RCU tasks to 
> rcutorture writer stall output
> date:   12 months ago
> config: h8300-allnoconfig (attached as .config)
> compiler: h8300-linux-gcc (GCC) 9.3.0
> 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=e21408ceec2de5be418efa39feb1e2c00f824a72
> git remote add linus 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> git fetch --no-tags linus master
> git checkout e21408ceec2de5be418efa39feb1e2c00f824a72
> # save the attached .config to linux build tree
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 
> ARCH=h8300 
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot 

Good catch, fixed with attribution by adding "static inline".

Thanx, Paul

> All warnings (new ones prefixed by >>):
> 
>    In file included from kernel/rcu/update.c:587:
> >> kernel/rcu/tasks.h:1031:6: warning: no previous prototype for 
> >> 'show_rcu_tasks_gp_kthreads' [-Wmissing-prototypes]
> 1031 | void show_rcu_tasks_gp_kthreads(void) {}
>  |  ^~
> 
> 
> vim +/show_rcu_tasks_gp_kthreads +1031 kernel/rcu/tasks.h
> 
>   1028
>   1029#else /* #ifdef CONFIG_TASKS_RCU_GENERIC */
>   1030static inline void rcu_tasks_bootup_oddness(void) {}
> > 1031void show_rcu_tasks_gp_kthreads(void) {}
> 
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org

kernel/rcu/tasks.h:1031:6: warning: no previous prototype for 'show_rcu_tasks_gp_kthreads'

2021-04-20 Thread kernel test robot 
Hi Paul,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   7af08140979a6e7e12b78c93b8625c8d25b084e2
commit: e21408ceec2de5be418efa39feb1e2c00f824a72 rcu-tasks: Add RCU tasks to 
rcutorture writer stall output
date:   12 months ago
config: arm-zeus_defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0
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=e21408ceec2de5be418efa39feb1e2c00f824a72
git remote add linus 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout e21408ceec2de5be418efa39feb1e2c00f824a72
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 
ARCH=arm 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   In file included from kernel/rcu/update.c:587:
>> kernel/rcu/tasks.h:1031:6: warning: no previous prototype for 
>> 'show_rcu_tasks_gp_kthreads' [-Wmissing-prototypes]
1031 | void show_rcu_tasks_gp_kthreads(void) {}
 |  ^~


vim +/show_rcu_tasks_gp_kthreads +1031 kernel/rcu/tasks.h

  1028  
  1029  #else /* #ifdef CONFIG_TASKS_RCU_GENERIC */
  1030  static inline void rcu_tasks_bootup_oddness(void) {}
> 1031  void show_rcu_tasks_gp_kthreads(void) {}

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


.config.gz
Description: application/gzip

kernel/rcu/tasks.h:1031:6: warning: no previous prototype for 'show_rcu_tasks_gp_kthreads'

2021-04-20 Thread kernel test robot 
Hi Paul,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   7af08140979a6e7e12b78c93b8625c8d25b084e2
commit: e21408ceec2de5be418efa39feb1e2c00f824a72 rcu-tasks: Add RCU tasks to 
rcutorture writer stall output
date:   12 months ago
config: h8300-allnoconfig (attached as .config)
compiler: h8300-linux-gcc (GCC) 9.3.0
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=e21408ceec2de5be418efa39feb1e2c00f824a72
git remote add linus 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout e21408ceec2de5be418efa39feb1e2c00f824a72
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 
ARCH=h8300 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot 

All warnings (new ones prefixed by >>):

   In file included from kernel/rcu/update.c:587:
>> kernel/rcu/tasks.h:1031:6: warning: no previous prototype for 
>> 'show_rcu_tasks_gp_kthreads' [-Wmissing-prototypes]
1031 | void show_rcu_tasks_gp_kthreads(void) {}
 |  ^~


vim +/show_rcu_tasks_gp_kthreads +1031 kernel/rcu/tasks.h

  1028  
  1029  #else /* #ifdef CONFIG_TASKS_RCU_GENERIC */
  1030  static inline void rcu_tasks_bootup_oddness(void) {}
> 1031  void show_rcu_tasks_gp_kthreads(void) {}

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


.config.gz
Description: application/gzip