linux-kernel - Re: [PATCH 04/16] Add minimum address parameter to efi_low

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Message-ID: <CACxGe6uKT0Rvakq4vjmDYU-d0E2_Oboo5N95ocsDgbByU=2LqQ@mail.gmail.com>
Date:	Fri, 30 Aug 2013 23:55:56 +0100
From:	Grant Likely <grant.likely@...retlab.ca>
To:	Roy Franz <roy.franz@...aro.org>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-efi@...r.kernel.org,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>, matt.fleming@...el.com,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Dave Martin <dave.martin@....com>,
	Leif Lindholm <leif.lindholm@...aro.org>,
	Mark Salter <msalter@...hat.com>
Subject: Re: [PATCH 04/16] Add minimum address parameter to efi_low_alloc()

On Fri, Aug 30, 2013 at 11:12 PM, Roy Franz <roy.franz@...aro.org> wrote:
> On Fri, Aug 30, 2013 at 6:01 AM, Grant Likely <grant.likely@...retlab.ca> wrote:
>> On Fri,  9 Aug 2013 16:26:05 -0700, Roy Franz <roy.franz@...aro.org> wrote:
>>> This allows allocations to be made low in memory while
>>> avoiding allocations at the base of memory.
>>
>> Your commit message should include /why/ the change is needed. From the
>> above I understand what the patch does, but I don't understand why it is
>> necessary.
>
> This was used to avoid relocating the zImage so low in memory that it
> would conflict
> with memory range that it was decompressed into.  This is now handled
> by allocating
> the memory for the decompressed kernel, so the lower limit is no
> longer required.
> I'll remove it, as it is not necessary any more.

Even better!  :-)

g.
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