Re: kfree(NULL)

[Jörn Engel]

On Fri, 21 April 2006 13:30:30 -0700, Vernon Mauery wrote:
> 
> A simple NULL check is faster 
> than a function call and then a simple NULL check.

I am not sure whether this is still true for any non-ancient CPUs.
The cost of a branch misprediction is in the order of _many_
predictable instructions.  That makes conditionals more expensive than
they used to be.  And the cost of branch mispredictions keeps
increasing.

Jörn

-- 
You can take my soul, but not my lack of enthusiasm.
-- Wally
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