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SubjectRe: [PATCH 2/7] ACPI: Limit the number of per cpu ACPI bootup messages
On Thu, 12 Nov 2009, Mike Travis wrote:

> > > --- linux.orig/drivers/acpi/tables.c
> > > +++ linux/drivers/acpi/tables.c
> > > @@ -66,11 +66,15 @@
> > > {
> > > struct acpi_madt_local_x2apic *p =
> > > (struct acpi_madt_local_x2apic *)header;
> > > - printk(KERN_INFO PREFIX
> > > - "X2APIC (apic_id[0x%02x] uid[0x%02x] %s)\n",
> > > - p->local_apic_id, p->uid,
> > > - (p->lapic_flags & ACPI_MADT_ENABLED) ?
> > > - "enabled" : "disabled");
> > > + /*
> > > + * Per cpu tracing clogs console output when NR_CPUS
> > > + * is large. Send only to kernel log buffer.
> > > + */
> > > + printk(KERN_DEBUG PREFIX
> > > + "X2APIC (apic_id[0x%02x] uid[0x%02x] %s)\n",
> > > + p->local_apic_id, p->uid,
> > > + (p->lapic_flags & ACPI_MADT_ENABLED) ?
> > > + "enabled" : "disabled");
> > > }
> > > break;
> > >
> >
> > You can still use dev_dbg(PREFIX "...") here.
>
> I thought dev_dbg needed the 'dev' structure and I wasn't sure how to get
> that...?
>

Ah, ok, it needs to be pr_debug(PREFIX "...") then.

Any reason why the other printk's in acpi_table_print_madt_entry() weren't
converted to use KERN_DEBUG? It might make more sense to convert all
those to use a new acpi=verbose flag.

I'm not sure if Ingo is the right person to go through for acpi patches, I
think this should probably be submitted to Len Brown <lenb@kernel.org> and
linux-acpi@vger.kernel.org instead.


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