On Sat, Nov 29, 2014 at 7:07 AM, Sasha Levin <[email protected]> wrote:
>
> Since we can't just change those to unsigned
Sure we can. Just cast them. A signed start/len is bogus crap, it's a
random wrong type.
If you want to, add a "if (len < 0) return -EINVAL;" before the cast,
but treating negative numbers as big positive numbers sounds fine too.
> we'd still need to do an overflow
> check with signed integers somewhere.
Why? It's just a type. User space can't care, and signed values make
no sense anyway.
Linus
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