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

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Date:   Wed, 25 Jul 2018 15:10:06 +0800
From:   Baoquan He <bhe@...hat.com>
To:     Chao Fan <fanc.fnst@...fujitsu.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 07/24/18 at 04:36pm, Chao Fan wrote:
> 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.
> >
> >By the way, you might need to rebase this patchset on top of
> >tip/x86/boot.
> 
> Sorry Baoquan,
> 
> I tried to add this patcheset to the tip/x86/boot branch using both 'patch'
> command and 'git am'. I found no problem and no offset.
> So is there some problems when you use them?

That's great, just to remind.