Re: [RFC 1/4] ARM: topology: Add arch_scale_freq_power function

Joe Perches
2012-06-13T19:30:59Z

On Wed, 2012-06-13 at 20:27 +0100, Andy Whitcroft wrote:
> On Wed, Jun 13, 2012 at 02:52:49PM +0200, Peter Zijlstra wrote:
> > On Tue, 2012-06-12 at 14:02 +0200, Vincent Guittot wrote:
> > > }
> > > smp_wmb();
> > > }
> >
> > You know what.. we should make checkpatch report an error for memory
> > barriers that don't have a comment.
> >
> > I know this isn't added by this patch, but every time I see something
> > like it I cry a little.
>
> Actually if it was a new line, it would have been reported, at least in
> theory:
>
> # check for memory barriers without a comment.
> if ($line =~
> /\b(mb|rmb|wmb|read_barrier_depends|smp_mb|smp_rmb|smp_wmb|smp_read_barrier_depends)\(/)
> {
> if (!ctx_has_comment($first_line, $linenr)) {
> CHK("MEMORY_BARRIER",
> "memory barrier without comment\n" . $herecurr);
> }
> }

Maybe promote that CHK to a WARN.