[acrn:4.19/lts 30/85] drivers/vhm/vhm_ioreq.c:1159:6: error: no previous prototype for 'acrn_ioreq_driver_deinit'

[acrn:4.19/lts 30/85] drivers/vhm/vhm_ioreq.c:1159:6: error: no previous prototype for 'acrn_ioreq_driver_deinit'

[kernel test robot]

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tree:   https://github.com/projectacrn/acrn-kernel 4.19/lts
head:   8abec6c5ebdace7220ecfa35b317c76f62e29c31
commit: 6ba44a4b51512f4fd4e4800240972c4cff714bef [30/85] vhm ioreq: add debugfs entry to dump the vhm client io range
config: x86_64-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
        git checkout 6ba44a4b51512f4fd4e4800240972c4cff714bef
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

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

All errors (new ones prefixed by >>):

   drivers/vhm/vhm_ioreq.c: In function 'acrn_ioreq_driver_init':
   drivers/vhm/vhm_ioreq.c:1151:6: error: old-style function definition [-Werror=old-style-definition]
    1151 | void acrn_ioreq_driver_init()
         |      ^~~~~~~~~~~~~~~~~~~~~~
   drivers/vhm/vhm_ioreq.c: At top level:
>> drivers/vhm/vhm_ioreq.c:1159:6: error: no previous prototype for 'acrn_ioreq_driver_deinit' [-Werror=missing-prototypes]
    1159 | void acrn_ioreq_driver_deinit(void)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors

# https://github.com/projectacrn/acrn-kernel/commit/6ba44a4b51512f4fd4e4800240972c4cff714bef
git remote add acrn https://github.com/projectacrn/acrn-kernel
git fetch --no-tags acrn 4.19/lts
git checkout 6ba44a4b51512f4fd4e4800240972c4cff714bef
vim +/acrn_ioreq_driver_deinit +1159 drivers/vhm/vhm_ioreq.c

  1158	
> 1159	void acrn_ioreq_driver_deinit(void)

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

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