linux-kernel - Re: [PATCH v4 1/4] x86/boot: Add acpitb.h to help parse acpi tables

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Date:   Tue, 24 Jul 2018 14:13:18 +0800
From:   Chao Fan <fanc.fnst@...fujitsu.com>
To:     Baoquan He <bhe@...hat.com>
CC:     <linux-kernel@...r.kernel.org>, <x86@...nel.org>, <hpa@...or.com>,
        <tglx@...utronix.de>, <mingo@...hat.com>, <keescook@...omium.org>,
        <yasu.isimatu@...il.com>, <indou.takao@...fujitsu.com>,
        <caoj.fnst@...fujitsu.com>, <douly.fnst@...fujitsu.com>
Subject: Re: [PATCH v4 1/4] x86/boot: Add acpitb.h to help parse acpi tables

On Tue, Jul 24, 2018 at 02:02:57PM +0800, Baoquan He wrote:
>Hi chao,
>
>On 07/23/18 at 05:29pm, Chao Fan wrote:
>> In order to parse ACPI tables, reuse the head file linux/acpi.h,
>> so that the files in 'compressed' directory can read ACPI table
>> by including this head file.
>> 
>> Signed-off-by: Chao Fan <fanc.fnst@...fujitsu.com>
>> ---
>>  arch/x86/boot/compressed/acpitb.h | 7 +++++++
>>  1 file changed, 7 insertions(+)
>>  create mode 100644 arch/x86/boot/compressed/acpitb.h
>> 
>> diff --git a/arch/x86/boot/compressed/acpitb.h b/arch/x86/boot/compressed/acpitb.h
>> new file mode 100644
>> index 000000000000..f8ab6e5b3e06
>> --- /dev/null
>> +++ b/arch/x86/boot/compressed/acpitb.h
>> @@ -0,0 +1,7 @@
>> +/* SPDX-License-Identifier: GPL-2.0 */
>> +#include <linux/acpi.h>
>> +
>> +#define ACPI_MAX_TABLES                128
>> +
>> +/* Function to get ACPI SRAT table pointer. */
>> +struct acpi_table_header *get_acpi_srat_table(void);
>
>Since acpitb.h includes so few lines of code, not sure if we can move
>them into .c files directly.

Both acpitb.c and kaslr.c in my PATCH will use this head file.
And also eboot.h is also simple, so I put this code alone.

>
>By the way, you might need to rebase this patchset on top of
>tip/x86/boot.

OK, now it is based on master of tip.
Will do it in next version.

Thanks,
Chao Fan

>
>Thanks
>Baoquan
>
>