Re: [PATCH] netdevsim: Fix task hung by releasing bus lock before device ops

[kernel test robot <lkp@intel.com>]

Hi Jiakai,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linus/master]
[also build test WARNING on v7.1-rc2 next-20260508]
[cannot apply to horms-ipvs/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Jiakai-Xu/netdevsim-Fix-task-hung-by-releasing-bus-lock-before-device-ops/20260510-070550
base:   linus/master
patch link:    https://lore.kernel.org/r/20260509092837.3432281-1-xujiakai24%40mails.ucas.ac.cn
patch subject: [PATCH] netdevsim: Fix task hung by releasing bus lock before device ops
config: riscv-randconfig-001 (https://download.01.org/0day-ci/archive/20260510/202605101318.qbesSR5H-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260510/202605101318.qbesSR5H-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202605101318.qbesSR5H-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/net/netdevsim/bus.c: In function 'new_device_store':
   drivers/net/netdevsim/bus.c:192:3: error: implicit declaration of function 'nsim_bus_dev_del'; did you mean 'nsim_bus_dev_new'? [-Werror=implicit-function-declaration]
      nsim_bus_dev_del(nsim_bus_dev);
      ^~~~~~~~~~~~~~~~
      nsim_bus_dev_new
   drivers/net/netdevsim/bus.c: At top level:
>> drivers/net/netdevsim/bus.c:206:13: warning: conflicting types for 'nsim_bus_dev_del'
    static void nsim_bus_dev_del(struct nsim_bus_dev *nsim_bus_dev);
                ^~~~~~~~~~~~~~~~
   drivers/net/netdevsim/bus.c:206:13: error: static declaration of 'nsim_bus_dev_del' follows non-static declaration
   drivers/net/netdevsim/bus.c:192:3: note: previous implicit declaration of 'nsim_bus_dev_del' was here
      nsim_bus_dev_del(nsim_bus_dev);
      ^~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/nsim_bus_dev_del +206 drivers/net/netdevsim/bus.c

f9d9db47d3ba873 Jiri Pirko 2019-04-25  205  
e05b2d141fef22c Jiri Pirko 2019-04-25 @206  static void nsim_bus_dev_del(struct nsim_bus_dev *nsim_bus_dev);
e05b2d141fef22c Jiri Pirko 2019-04-25  207  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki