On Thu, 2009-05-28 at 11:00 -0400, Jarod Wilson wrote:
> On Wednesday 20 May 2009 02:27:35 Jaswinder Singh Rajput wrote:
> > 
> > intel_no_lvds[] does not require __initdata as it is used only by :
> > 
> >   void intel_lvds_init(struct drm_device *dev)
> > 
> > fixes section mismatch warning:
> > 
> >   WARNING: drivers/gpu/drm/i915/i915.o(.text+0xf3c5): Section mismatch in 
> > reference from the function intel_lvds_init() to the variable 
> > .init.data:intel_no_lvds
> >   The function intel_lvds_init() references
> >   the variable __initdata intel_no_lvds.
> >   This is often because intel_lvds_init lacks a __initdata
> 
> This would seem to suggest __initdata should be added to
> intel_lvds_init, rather than removed from intel_no_lvds...
> 

The complete statement is :

WARNING: drivers/gpu/drm/i915/i915.o(.text+0xf3c5): Section mismatch in 
reference from the function intel_lvds_init() to the variable 
.init.data:intel_no_lvds
The function intel_lvds_init() references
the variable __initdata intel_no_lvds.
This is often because intel_lvds_init lacks a __initdata 
annotation or the annotation of intel_no_lvds is wrong.

> But I suppose either one would work. Apologies for not
> catching the initial mismatch... :\
> 

No another way it will not work.

As intel_no_lvds is used by intel_lvds_init and dmi_check_system.

We can not set intel_lvds_init as intel_lvds_init is used by :
  static void intel_setup_outputs(struct drm_device *dev)

We can not set dmi_check_system to __init as it is also exported.

So the only option is to remove __initdata.

It seems the first patch : "[PATCH 1/2 -tip] drm/i915: acpi/video.c fix
section mismatch warning" is applied in acpi tree by Len Brown.

I am not sure where this patch should go.

So I am also mailing to Andrew and Dave, it they find this useful then
they can add in their tree.

> > Signed-off-by: Jaswinder Singh Rajput <[email protected]>
> > ---
> >  drivers/gpu/drm/i915/intel_lvds.c |    2 +-
> >  1 files changed, 1 insertions(+), 1 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/intel_lvds.c 
> > b/drivers/gpu/drm/i915/intel_lvds.c
> > index 439a865..5ffadf9 100644
> > --- a/drivers/gpu/drm/i915/intel_lvds.c
> > +++ b/drivers/gpu/drm/i915/intel_lvds.c
> > @@ -391,7 +391,7 @@ static int __init intel_no_lvds_dmi_callback(const 
> > struct dmi_system_id *id)
> >  }
> >  
> >  /* These systems claim to have LVDS, but really don't */
> > -static const struct dmi_system_id __initdata intel_no_lvds[] = {
> > +static const struct dmi_system_id intel_no_lvds[] = {
> >     {
> >             .callback = intel_no_lvds_dmi_callback,
> >             .ident = "Apple Mac Mini (Core series)",
> 
> 


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