[PATCH 5/5] x86/pkeys: Standardize on u8 for pkey type

[Dave Hansen]

On 3/10/22 16:57, ira.weiny at intel.com wrote:
> From: Ira Weiny <ira.weiny at intel.com>
> 
> The number of pkeys supported on x86 and powerpc are much smaller than a
> u16 value can hold.  It is desirable to standardize on the type for
> pkeys.  powerpc currently supports the most pkeys at 32.  u8 is plenty
> large for that.
> 
> Standardize on the pkey types by changing u16 to u8.

How widely was this intended to "standardize" things?  Looks like it may
have missed a few spots.

Also if we're worried about the type needing to change or with the wrong
type being used, I guess we could just to a pkey_t typedef.