linux-kernel - Re: [PATCH] x86: ioremap mptable -v2

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Message-ID: <20090302101918.GA6705@elte.hu>
Date:	Mon, 2 Mar 2009 11:19:18 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Kevin O'Connor <kevin@...onnor.net>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Stefan Reinauer <stepan@...esystems.de>,
	linux-kernel@...r.kernel.org, coreboot@...eboot.org
Subject: Re: [PATCH] x86: ioremap mptable -v2


* Ingo Molnar <mingo@...e.hu> wrote:

> >  	} else if (mpf->physptr) {
> > +		struct mpc_table *mpc;
> > +		unsigned long size;
> >  
> > +		mpc = early_ioremap(mpf->physptr, PAGE_SIZE);
> > +		size = mpc->length;
> > +		apic_printk(APIC_VERBOSE, "  mpc: %lx-%lx\n", (unsigned long)mpf->physptr,
> > +			 mpf->physptr + size);
> > +		early_iounmap(mpc, PAGE_SIZE);
> > +		mpc = early_ioremap(mpf->physptr, size);
> 
> no objections, but this bit of __get_smp_config() needs to be 
> done cleaner - the whole mpf->physptr != 0 bit should probably 
> go into a helper function.

and if you do that it should be done via two patches, in two 
steps: first patch is a pure cleanup that moves this bit of 
__get_smp_config() into a helper function. The second patch then 
adds the early_ioremap().

	Ingo
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