[lm-sensors] [PATCH] drivers/firmware: const-ify DMI API and internals

[Satyam Sharma]

On Sat, 1 Sep 2007, Andi Kleen wrote:
> 
> >     And if we're really lucky, this might enable some additional
> >     optimizations on the part of the compiler.
> 
> Only if the kernel was compiled C++. C compilers generally ignore constness
> for optimization purposes because it can be so easily casted away.

???

I can't speak for the exact const-ification that Jeff did in this
particular patch, but if you intended your comment up there to be a
blanket statement, then you're totally and horribly wrong. There's a
whole plethora of optimizations that gcc does when dealing with const-
marked data. If you've seen / experienced otherwise, please post some
testcases.