[PATCH] ARM: make memzero optimization smarter
Nicolas Pitre
nicolas.pitre at linaro.org
Wed Jan 17 13:14:17 PST 2018
On Wed, 17 Jan 2018, Nicolas Pitre wrote:
> On Wed, 17 Jan 2018, Russell King - ARM Linux wrote:
>
> > However, __memzero is not safe against being called with a zero length
> > so it's not something we can simply remove.
>
> The idea is about the possibility of removing __memzero altogether.
> It is not clear that the tiny performance gain from a dedicated memzero
> implementation is worth the current overhead around it.
This being said, I fail to see how __memzero is not safe against a zero
length. Are you sure it isn't?
Nicolas
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