Sean Christopherson <seanjc@xxxxxxxxxx> writes:
> On Tue, Dec 14, 2021, Vitaly Kuznetsov wrote:
>> vmcs_to_field_offset{,_table} may sound misleading as VMCS is an opaque
>> blob which is not supposed to be accessed directly. In fact,
>> vmcs_to_field_offset{,_table} are related to KVM defined VMCS12 structure.
>>
>> No functional change intended.
>>
>> Signed-off-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
>> ---
>> diff --git a/arch/x86/kvm/vmx/vmcs12.h b/arch/x86/kvm/vmx/vmcs12.h
>> index 2a45f026ee11..13e2bd017538 100644
>> --- a/arch/x86/kvm/vmx/vmcs12.h
>> +++ b/arch/x86/kvm/vmx/vmcs12.h
>> @@ -361,10 +361,10 @@ static inline void vmx_check_vmcs12_offsets(void)
>> CHECK_OFFSET(guest_pml_index, 996);
>> }
>>
>> -extern const unsigned short vmcs_field_to_offset_table[];
>> +extern const unsigned short vmcs12_field_offset_table[];
>
> While we're tweaking names, what about dropping "table" and calling this
> vmcs12_field_offsets?
>
Ok.
>> extern const unsigned int nr_vmcs12_fields;
>>
>> -static inline short vmcs_field_to_offset(unsigned long field)
>> +static inline short vmcs12_field_offset(unsigned long field)
>
> And get_vmcs12_field_offset() here to make it more obvious that it's translating
> something to an offset, which is communicated by the "to" in the current name.
>
I think we could've even used just 'vmcs12_field_offset()' as I don't
see any ambiguity in it but 4 additional letters shouldn't hurt.
>> {
>> unsigned short offset;
>> unsigned int index;
>> @@ -377,7 +377,7 @@ static inline short vmcs_field_to_offset(unsigned long field)
>> return -ENOENT;
>>
>> index = array_index_nospec(index, nr_vmcs12_fields);
>> - offset = vmcs_field_to_offset_table[index];
>> + offset = vmcs12_field_offset_table[index];
>> if (offset == 0)
>> return -ENOENT;
>> return offset;
>> --
>> 2.33.1
>>
>
--
Vitaly
