[stable:linux-4.19.y 4340/5220] arch/x86/kvm/vmx.c:10763:1: warning: 'inline' is not at beginning of declaration

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

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-4.19.y
head:   53b696f0584acce2e90db69272a2a11aab138370
commit: e6ac9561776a1fa80e245993f94c8f63fa15632b [4340/5220] KVM: VMX: Prevent guest RSB poisoning attacks with eIBRS
config: i386-debian-10.3 (https://download.01.org/0day-ci/archive/20230217/202302172129.LCWCNLUT-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?id=e6ac9561776a1fa80e245993f94c8f63fa15632b
        git remote add stable https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
        git fetch --no-tags stable linux-4.19.y
        git checkout e6ac9561776a1fa80e245993f94c8f63fa15632b
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash arch/x86/kvm/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302172129.LCWCNLUT-lkp@intel.com/

All warnings (new ones prefixed by >>):

   arch/x86/kvm/vmx.c: In function 'allow_1_setting':
   arch/x86/kvm/vmx.c:4532:13: warning: variable 'vmx_msr_low' set but not used [-Wunused-but-set-variable]
    4532 |         u32 vmx_msr_low, vmx_msr_high;
         |             ^~~~~~~~~~~
   arch/x86/kvm/vmx.c: At top level:
>> arch/x86/kvm/vmx.c:10763:1: warning: 'inline' is not at beginning of declaration [-Wold-style-declaration]
   10763 | u64 __always_inline vmx_spec_ctrl_restore_host(struct vcpu_vmx *vmx)
         | ^~~
   arch/x86/kvm/vmx.c: In function 'vmx_set_msr':
   arch/x86/kvm/vmx.c:4359:20: warning: this statement may fall through [-Wimplicit-fallthrough=]
    4359 |                 if ((data >> 32) != 0)
         |                    ^
   arch/x86/kvm/vmx.c:4362:9: note: here
    4362 |         default:
         |         ^~~~~~~
   arch/x86/kvm/vmx.c: In function 'vmx_get_msr':
   arch/x86/kvm/vmx.c:4174:20: warning: this statement may fall through [-Wimplicit-fallthrough=]
    4174 |                 if (!msr_info->host_initiated &&
         |                    ^
   arch/x86/kvm/vmx.c:4178:9: note: here
    4178 |         default:
         |         ^~~~~~~


vim +/inline +10763 arch/x86/kvm/vmx.c

 10762	
 10763	u64 __always_inline vmx_spec_ctrl_restore_host(struct vcpu_vmx *vmx)
 10764	{
 10765		u64 guestval, hostval = this_cpu_read(x86_spec_ctrl_current);
 10766	
 10767		if (!cpu_feature_enabled(X86_FEATURE_MSR_SPEC_CTRL))
 10768			return 0;
 10769	
 10770		guestval = __rdmsr(MSR_IA32_SPEC_CTRL);
 10771	
 10772		/*
 10773		 * If the guest/host SPEC_CTRL values differ, restore the host value.
 10774		 */
 10775		if (guestval != hostval)
 10776			native_wrmsrl(MSR_IA32_SPEC_CTRL, hostval);
 10777	
 10778		barrier_nospec();
 10779	
 10780		return guestval;
 10781	}
 10782	

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