On Wednesday, 24 October 2007 17:18, Jesse Barnes wrote:
> On Wednesday, October 24, 2007 6:35:14 am Pavel Machek wrote:
> > Hi!
> >
> > > We seem to see a lot of bug reports along the lines of, "my machine
> > > resumes but I can't see X" or, "I can see X but only with a bright
> > > flashlight", etc.  These sorts of problems are due to the fact that
> > > the X server isn't designed to do full state save/restore, and none
> > > of the available kernel drivers do it on its behalf.
> > >
> > > Since intelfb and the rest of the Intel drivers are fairly incompatible,
> > > this patch makes the DRM bind to the PCI device so it can register real
> > > suspend/resume handlers.  Those handlers take care of saving and
> > > restoring enough state for X to come back reliably on at least one of my
> > > problematic test machines, but text mode still has trouble (still
> > > debugging VGA state save/restore, including trying to save/restore
> > > actual VRAM contents for possible hibernate support).
> > >
> > > How does this approach look?  Is a new DRM driver flag a good thing for
> > > similar situations with other drivers?  Thoughts?
> >
> > Looks okay to me... from very quick look.
> >
> > > + if (!i915_pipe_enabled(dev, pipe))
> > > +         return;
> > > +
> > > + if (pipe == PIPE_A)
> > > +         array = dev_priv->savePaletteA;
> >
> > coding style, we probably want save_palette_A.
> 
> Yeah, I tried not to pull over uglies from the X code but I guess I forgot 
> this bit.  I should also update the copyright.
> 
> > > + unsigned long reg = pipe == PIPE_A ? PALETTE_A : PALETTE_B;
> >
> > Uff. Mixing = and == and ? in one expression is evil.
> 
> I could put parens around it if you think that would help, or just move it to 
> a new line...

I'd use parens around "pipe == PIPE_A".

Greetings,
Rafael

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