linux-kernel - RE: [PATCH v2 14/16] remoteproc: look-up pre-registered carveout by name for carveout allocation

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Date:   Mon, 15 Jan 2018 20:59:39 +0000
From:   Loic PALLARDY <loic.pallardy@...com>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
CC:     "ohad@...ery.com" <ohad@...ery.com>,
        "linux-remoteproc@...r.kernel.org" <linux-remoteproc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Arnaud POULIQUEN <arnaud.pouliquen@...com>,
        "benjamin.gaignard@...aro.org" <benjamin.gaignard@...aro.org>
Subject: RE: [PATCH v2 14/16] remoteproc: look-up pre-registered carveout by
 name for carveout allocation



> -----Original Message-----
> From: Bjorn Andersson [mailto:bjorn.andersson@...aro.org]
> Sent: Thursday, December 14, 2017 6:35 AM
> To: Loic PALLARDY <loic.pallardy@...com>
> Cc: ohad@...ery.com; linux-remoteproc@...r.kernel.org; linux-
> kernel@...r.kernel.org; Arnaud POULIQUEN <arnaud.pouliquen@...com>;
> benjamin.gaignard@...aro.org
> Subject: Re: [PATCH v2 14/16] remoteproc: look-up pre-registered carveout
> by name for carveout allocation
> 
> On Thu 30 Nov 08:46 PST 2017, Loic Pallardy wrote:
> > +	/* By name */
> > +	mem = rproc_find_carveout_by_name(rproc, rsc->name);
> > +	if (mem) {
> > +		/*
> > +		 * Update resource table with registered carevout
> information
> > +		 */
> > +		rsc->len = mem->len;
> 
> You should validate that len, da and pa are compatible.
Yes you're right, complete definition must be checked

Regards,
Loic
> 
> > +		rsc->da = mem->da;
> > +		rsc->pa = rproc_va_to_pa(mem->va);
> > +		/* no need to register as already match one for one */
> > +		return 0;
> > +	}
> 
> Regards,
> Bjorn