* Yinghai Lu <[EMAIL PROTECTED]> wrote:

> >   #define set_cpu_cap(c, bit)     set_bit(bit, (unsigned long 
> > *)((c)->x86_capability)
> >
> >  which is the same. set_cpu_cap() is indeed the cleaner form to do this
> >  so your patch is correct as a cleanup.
> set_cpu_cap is right
> ==
> set_bit(X86_FEATURE_CONSTANT_TSC, &c->x86_capability); ===> is wrong
> should be
> set_bit(X86_FEATURE_CONSTANT_TSC, c->x86_capability);
> 
> x86_capability is a array ...
> 
> so this could prevent some data corruption.

ah, right you are! The commit was done in a sloppy, incomplete way, 
leaving around lots of direct c->x86_capability references and giving 
room for this bug ...

Btw., there's one other place that has the same bug. I'll fix that up 
too.

        Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to