Re: [PATCH v6 2/2] x86/tlb: skip redundant sync IPIs for native TLB flush

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

Hi Lance,

kernel test robot noticed the following build warnings:

[auto build test WARNING on akpm-mm/mm-everything]
[also build test WARNING on next-20260305]
[cannot apply to tip/x86/core arnd-asm-generic/master peterz-queue/sched/core tip/x86/mm linus/master v7.0-rc2]
[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/Lance-Yang/mm-mmu_gather-prepare-to-skip-redundant-sync-IPIs/20260304-101422
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20260304021046.18550-3-lance.yang%40linux.dev
patch subject: [PATCH v6 2/2] x86/tlb: skip redundant sync IPIs for native TLB flush
config: i386-allnoconfig (https://download.01.org/0day-ci/archive/20260306/202603062315.vLgD8smL-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260306/202603062315.vLgD8smL-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/202603062315.vLgD8smL-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> arch/x86/mm/tlb.c:1841:13: warning: no previous prototype for 'native_pv_tlb_init' [-Wmissing-prototypes]
    1841 | void __init native_pv_tlb_init(void)
         |             ^~~~~~~~~~~~~~~~~~


vim +/native_pv_tlb_init +1841 arch/x86/mm/tlb.c

  1839	
  1840	#ifndef CONFIG_PARAVIRT
> 1841	void __init native_pv_tlb_init(void)

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