linux-kernel - Re: [Patch v2 0/2] firmware: dmi-sysfs: add SMBIOS entry point area raw attribute

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Message-Id: <20150127162331.70F43C41077@trevor.secretlab.ca>
Date:	Tue, 27 Jan 2015 16:23:31 +0000
From:	Grant Likely <grant.likely@...aro.org>
To:	Ivan Khoronzhuk <ivan.khoronzhuk@...aro.org>,
	linux-kernel@...r.kernel.org, ard.biesheuvel@...aro.org
Cc:	dmidecode-devel@...gnu.org, leif.lindholm@...aro.org,
	matt.fleming@...el.com,
	Ivan Khoronzhuk <ivan.khoronzhuk@...aro.org>
Subject: Re: [Patch v2 0/2] firmware: dmi-sysfs: add SMBIOS entry point area
 raw attribute

On Mon, 26 Jan 2015 15:28:36 +0200
, Ivan Khoronzhuk <ivan.khoronzhuk@...aro.org>
 wrote:
> Some utils, like dmidecode and smbios, needs to access SMBIOS entry
> table area in order to get information like SMBIOS version, size, etc.
> Currently it's done via /dev/mem. But for situation when /dev/mem
> usage is disabled, the utils have to use dmi sysfs instead, which
> doesn't represent SMBIOS entry. So this patch series adds SMBIOS
> area to dmi sysfs in order to allow utils in question to work
> correctly with dmi sysfs.
> 
> v1: https://lkml.org/lkml/2015/1/23/643

Hi Ivan,

The change looks good to me, but it is an ABI addition, so it needs to
be documented. You'll need to add a description to:

Documentation/ABI/testing/sysfs-testing/sysfs-firmware-dmi

Second, (minor point), there is no reason to split this up into two
patches. It is one feature, and would be better as a single patch.

g.

> 
> v2..v1:
>   firmware: dmi_scan: add symbol to get SMBIOS entry area
> 	- used additional static var to hold SMBIOS raw table size
> 	- changed format of get_smbios_entry_area symbol
> 	  returned pointer on const smbios table
> 
>   firmware: dmi-sysfs: add SMBIOS entry point area attribute
> 	- adopted to updated get_smbios_entry_area symbol
>   	- removed redundant array to save smbios table
> 
> Ivan Khoronzhuk (2):
>   firmware: dmi_scan: add symbol to get SMBIOS entry area
>   firmware: dmi-sysfs: add SMBIOS entry point area attribute
> 
>  drivers/firmware/dmi-sysfs.c | 42 ++++++++++++++++++++++++++++++++++++++++++
>  drivers/firmware/dmi_scan.c  | 26 ++++++++++++++++++++++++++
>  include/linux/dmi.h          |  3 +++
>  3 files changed, 71 insertions(+)
> 
> -- 
> 1.9.1
> 

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