linux-kernel - Re: [PATCH 03/14] x86, ACPI: store override acpi tables phys addr

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Message-ID: <CAE9FiQWdyx3_ao++=0a4rj_1LM7--MKz=+0gKUviws=DWjESZw@mail.gmail.com>
Date:	Thu, 7 Mar 2013 22:49:04 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Tejun Heo <tj@...nel.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Renninger <trenn@...e.de>,
	Tang Chen <tangchen@...fujitsu.com>,
	linux-kernel@...r.kernel.org, "Rafael J. Wysocki" <rjw@...k.pl>,
	linux-acpi@...r.kernel.org
Subject: Re: [PATCH 03/14] x86, ACPI: store override acpi tables phys addr

On Thu, Mar 7, 2013 at 9:36 PM, Tejun Heo <tj@...nel.org> wrote:
> On Thu, Mar 07, 2013 at 08:58:29PM -0800, Yinghai Lu wrote:
>> As later 32bit only find table with phys address during 32bit flat mode
>> in head_32.S.
>>
>> To keep 32bit and 64 bit consistent, use phys_addr for all.
>>
>> Use early_ioremap to access during copying.
>>
>> Signed-off-by: Yinghai Lu <yinghai@...nel.org>
>> Cc: Thomas Renninger <trenn@...e.de>
>> Cc: Rafael J. Wysocki <rjw@...k.pl>
>> Cc: linux-acpi@...r.kernel.org
>> ---
>> @@ -654,10 +654,13 @@ void __init acpi_initrd_override_copy(void)
>>       arch_reserve_mem_area(acpi_tables_addr, all_tables_size);
>>
>>       for (no = 0; no < table_nr; no++) {
>> -             size_t size = early_initrd_files[no].size;
>> +             unsigned long size = early_initrd_files[no].size;
>>
>>               p = early_ioremap(acpi_tables_addr + total_offset, size);
>> -             memcpy(p, early_initrd_files[no].data, size);
>> +             q = early_ioremap((unsigned long)early_initrd_files[no].data,
>> +                                      size);
>> +             memcpy(p, q, size);
>> +             early_iounmap(q, size);
>
> Ah, okay, so the loop change in the previous patch was for this, I
> suppose?  That chunk probably should either be a separate patch or
> rolled into this one.

merge two patches?
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