linux-kernel - Re: [PATCH v5 02/12] x86/apic: Prepare for unifying the interrupt delivery modes setup

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Message-ID: <alpine.DEB.2.20.1707030840440.2188@nanos>
Date:   Mon, 3 Jul 2017 08:41:33 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Dou Liyang <douly.fnst@...fujitsu.com>
cc:     x86@...nel.org, linux-kernel@...r.kernel.org,
        xen-devel@...ts.xenproject.org, mingo@...nel.org, hpa@...or.com,
        ebiederm@...ssion.com, bhe@...hat.com, boris.ostrovsky@...cle.com,
        peterz@...radead.org, izumi.taku@...fujitsu.com
Subject: Re: [PATCH v5 02/12] x86/apic: Prepare for unifying the interrupt
 delivery modes setup

On Mon, 3 Jul 2017, Dou Liyang wrote:
> At 07/03/2017 01:47 AM, Thomas Gleixner wrote:
> > On Fri, 30 Jun 2017, Dou Liyang wrote:
> > > +/* Init the interrupt delivery mode for the BSP */
> > > +void __init apic_intr_mode_init(void)
> > > +{
> > > +	switch (apic_intr_mode_select()) {
> > > +	case APIC_PIC:
> > > +		apic_printk(APIC_VERBOSE, KERN_INFO
> > > +			"Keep in PIC mode(8259)\n");
> > 
> > Please do not proliferate that APIC_VERBOSE, KERN_INFO mess. Clean up the
> > apic_printk() macro first. Either change printk() to pr_info() or make the
> > printk level dependent on the APIC verbosity.
> 
> Oops, I understood, How about the following:
> 
> pr_info("APIC: keep in PIC mode(8259)\n");

As this is once per boot, it's ok to have that information unconditionally
printed.

Thanks,

	tglx