On Sat, 27 Oct 2012 15:12:03 +0200 Ingo Molnar <mi...@kernel.org> wrote:
> There's 3 types of conversions done:
>
> uninitialized_var(x) => x = 0 /* for scalar types */
> uninitialized_var(x) => x = NULL /* for pointers */
> uninitialized_var(x) => x = { } /* for structures, unions */
It's regrettable that we lose information. uninitialized_var() says
"this isn't needed - it's just there for gcc". The reader can of
course work out the reason with careful code inspection, but that's a
lot more time consuming.
We could go add "/* keep gcc quiet */" to every site, or add
self-documenting macros for the above.
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