[intel-tdx:guest 98/136] arch/x86/kernel/tdx.c:489:14: error: no previous prototype for 'tdx_write_msr'

[kernel test robot]

tree:   https://github.com/intel/tdx.git guest
head:   12f4800ff5dbe89a642744796008f89f23b2e446
commit: 0b2ba653fca5799158883bdaefabe6176aea7db9 [98/136] x86/tdx: Use direct paravirt call for wrmsrl
config: x86_64-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel/tdx/commit/0b2ba653fca5799158883bdaefabe6176aea7db9
        git remote add intel-tdx https://github.com/intel/tdx.git
        git fetch --no-tags intel-tdx guest
        git checkout 0b2ba653fca5799158883bdaefabe6176aea7db9
        # 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@xxxxxxxxx>

All errors (new ones prefixed by >>):

   arch/x86/kernel/tdx.c:266:5: error: no previous prototype for 'tdx_hcall_set_notify_intr' [-Werror=missing-prototypes]
     266 | int tdx_hcall_set_notify_intr(u8 vector)
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~
>> arch/x86/kernel/tdx.c:489:14: error: no previous prototype for 'tdx_write_msr' [-Werror=missing-prototypes]
     489 | void notrace tdx_write_msr(unsigned int msr, u32 low, u32 high)
         |              ^~~~~~~~~~~~~
   cc1: all warnings being treated as errors


vim +/tdx_write_msr +489 arch/x86/kernel/tdx.c

   488	
 > 489	void notrace tdx_write_msr(unsigned int msr, u32 low, u32 high)
   490	{
   491		if (tdx_fast_tdcall_path_msr(msr))
   492			tdx_write_msr_safe(msr, low, high);
   493		else
   494			native_write_msr(msr, low, high);
   495	}
   496	

---
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https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

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