[PATCH 12/22] kdrive/ephyr: Use shared NoopDDA to utilize code cache better

[Mark Kettenis]

> From: Pauli <ext-pauli.nieminen at nokia.com>
> Date: Wed, 29 Dec 2010 21:27:24 +0200
> 
> From: Pauli Nieminen <ext-pauli.nieminen at nokia.com>
> 
> Calling function that is in code cache is order of magnitude faster. In
> arm non-cached simple function takes about 1us while cached function
> takes max 200ns.

Same objection here; And all other cases where you abuse NoopDDA.