Re: Expected compiler error on GENERIC?



On Thu, Mar 21, 2002 at 09:31:30AM -0500, Andrew Gallatin wrote:
> David O'Brien writes:
> > On Wed, Mar 20, 2002 at 04:13:06PM -0700, Warner Losh wrote:
> > > The line in question is
> > > if (!badaddr((void *)&t2_csr[1]->tlbbr, sizeof(long))) {
> > > but I don't know what the type of tlbbr is, but it is either volatile
> > > or const for some reason...
> >
> > `tlbbr' is u_long.
> > `t2_csr' is "volatile", and is the source of the warning.
>
> Please: what's the proper way to cast away the volatile & shut the
> f*ing compiler up?

Why is it marked "volatile" in the first place? What will happen if we
make a 'u_long ltmp = t2_csr[1]->tlbbr;' and then pass in the address of
that? Will we potentially be using a stale value that could cause us a
problem?

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