[zen:6.13/invlpgb-v9 2/5] arch/x86/mm/tlb.c:1448:3: error: call to undeclared function 'invlpgb_flush_addr_nosync'; ISO C99 and later do not support implicit function declarations

[zen:6.13/invlpgb-v9 2/5] arch/x86/mm/tlb.c:1448:3: error: call to undeclared function 'invlpgb_flush_addr_nosync'; ISO C99 and later do not support implicit function declarations

[kernel test robot]

tree:   https://github.com/zen-kernel/zen-kernel 6.13/invlpgb-v9
head:   df542b65e9753dea56b584fdca48cb8f8e3f74cd
commit: 562d058d0cd7501740dca61a16d2f9e55c1f1981 [2/5] x86/mm: do targeted broadcast flushing from tlbbatch code
config: x86_64-buildonly-randconfig-006-20250209 (https://download.01.org/0day-ci/archive/20250209/202502090616.oGx7Cuc8-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250209/202502090616.oGx7Cuc8-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/202502090616.oGx7Cuc8-lkp@intel.com/

All errors (new ones prefixed by >>):

>> arch/x86/mm/tlb.c:1448:3: error: call to undeclared function 'invlpgb_flush_addr_nosync'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    1448 |                 invlpgb_flush_addr_nosync(addr, nr);
         |                 ^
   arch/x86/mm/tlb.c:1448:3: note: did you mean '__invlpgb_flush_addr_nosync'?
   arch/x86/include/asm/invlpgb.h:88:20: note: '__invlpgb_flush_addr_nosync' declared here
      88 | static inline void __invlpgb_flush_addr_nosync(unsigned long addr, u16 nr)
         |                    ^
>> arch/x86/mm/tlb.c:1689:3: error: call to undeclared function 'invlpgb_flush_user_nr_nosync'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    1689 |                 invlpgb_flush_user_nr_nosync(kern_pcid(asid), uaddr, 1, false);
         |                 ^
   arch/x86/mm/tlb.c:1689:3: note: did you mean '__invlpgb_flush_user_nr_nosync'?
   arch/x86/include/asm/invlpgb.h:66:20: note: '__invlpgb_flush_user_nr_nosync' declared here
      66 | static inline void __invlpgb_flush_user_nr_nosync(unsigned long pcid,
         |                    ^
   2 errors generated.


vim +/invlpgb_flush_addr_nosync +1448 arch/x86/mm/tlb.c

3df3212f9722c7 Alex Shi     2012-06-28  1429  
b2ac10f4b65686 Rik van Riel 2025-02-05  1430  static bool broadcast_kernel_range_flush(struct flush_tlb_info *info)
b2ac10f4b65686 Rik van Riel 2025-02-05  1431  {
b2ac10f4b65686 Rik van Riel 2025-02-05  1432  	unsigned long addr;
b2ac10f4b65686 Rik van Riel 2025-02-05  1433  	unsigned long nr;
b2ac10f4b65686 Rik van Riel 2025-02-05  1434  
b2ac10f4b65686 Rik van Riel 2025-02-05  1435  	if (!IS_ENABLED(CONFIG_X86_BROADCAST_TLB_FLUSH))
b2ac10f4b65686 Rik van Riel 2025-02-05  1436  		return false;
b2ac10f4b65686 Rik van Riel 2025-02-05  1437  
b2ac10f4b65686 Rik van Riel 2025-02-05  1438  	if (!cpu_feature_enabled(X86_FEATURE_INVLPGB))
b2ac10f4b65686 Rik van Riel 2025-02-05  1439  		return false;
b2ac10f4b65686 Rik van Riel 2025-02-05  1440  
b2ac10f4b65686 Rik van Riel 2025-02-05  1441  	if (info->end == TLB_FLUSH_ALL) {
b2ac10f4b65686 Rik van Riel 2025-02-05  1442  		invlpgb_flush_all();
b2ac10f4b65686 Rik van Riel 2025-02-05  1443  		return true;
b2ac10f4b65686 Rik van Riel 2025-02-05  1444  	}
b2ac10f4b65686 Rik van Riel 2025-02-05  1445  
b2ac10f4b65686 Rik van Riel 2025-02-05  1446  	for (addr = info->start; addr < info->end; addr += nr << PAGE_SHIFT) {
b2ac10f4b65686 Rik van Riel 2025-02-05  1447  		nr = min((info->end - addr) >> PAGE_SHIFT, invlpgb_count_max);
b2ac10f4b65686 Rik van Riel 2025-02-05 @1448  		invlpgb_flush_addr_nosync(addr, nr);
b2ac10f4b65686 Rik van Riel 2025-02-05  1449  	}
b2ac10f4b65686 Rik van Riel 2025-02-05  1450  	tlbsync();
b2ac10f4b65686 Rik van Riel 2025-02-05  1451  	return true;
b2ac10f4b65686 Rik van Riel 2025-02-05  1452  }
b2ac10f4b65686 Rik van Riel 2025-02-05  1453  

:::::: The code at line 1448 was first introduced by commit
:::::: b2ac10f4b65686ca371571bd150c18ea71c7277c x86/mm: use INVLPGB for kernel TLB flushes

:::::: TO: Rik van Riel <riel@surriel.com>
:::::: CC: Steven Barrett <steven@liquorix.net>

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https://github.com/intel/lkp-tests/wiki