Re: [PATCH] x86: fix section mismatch warnings in mtrr

[Sam Ravnborg <sam@ravnborg.org>]

On Sun, May 27, 2007 at 11:56:21AM +0200, Andi Kleen wrote:
> 
> > 
> > So section mismatch warnings are more about catching sloopy usage of __init than it is to
> > catch potential kernel oopesen. But the latter is a nice side effect that is appreciated.
> 
> My point was that I cannot recall a single real oops bug found by the compile
> time checking.
> 
> We had a few in the past, but since we poison init data after boot they all tended
> to be found quickly anyways.
It's far better to find the bugs during build time than during run-time.

> But the warnings just seem to require endless changes and bogus changes
> (randomly moving code which was actually ok because it only called 
> in the init case).
The main culprint is probarly that the warnings are so vocal.
Everyone see them for each kernel-build that touches one file.
And then everyone and their cousin try to fix them.

When we are down to a warning-free x86 build things will start to look different.
And I will do my to make us get there - as time permits.

	Sam