linux-kernel - Re: [PATCH] Make all it87 drivers SMP safe.

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Message-ID: <20110406030220.GB22535@ericsson.com>
Date:	Tue, 5 Apr 2011 20:02:20 -0700
From:	Guenter Roeck <guenter.roeck@...csson.com>
To:	Natarajan Gurumoorthy <natg@...gle.com>
CC:	Jean Delvare <khali@...ux-fr.org>,
	Wim Van Sebroeck <wim@...ana.be>,
	Mike Waychison <mikew@...gle.com>,
	"lm-sensors@...sensors.org" <lm-sensors@...sensors.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-watchdog@...r.kernel.org" <linux-watchdog@...r.kernel.org>
Subject: Re: [PATCH] Make all it87 drivers SMP safe.

On Tue, Apr 05, 2011 at 10:50:47PM -0400, Natarajan Gurumoorthy wrote:
> Guenter,
>       Thank you for spotting the fact the everything goes south if you
> disable "watchdog". I am working on a solution. Looks like the ideal
> place to store it87_io_lock.c will be drivers/misc and the IT87_LOCK
> config will be placed before the MISC_DEVICES entry in
> drivers/misc/Kconfig file. This will be similar to the
> SENSORS_LIS3LV02D entry in that Kconfig file.
> 
Almost, only afaik that is only used inside the misc directory, or at least
has some other components there. I don't really know how to handle this
situation correctly, except you could of course write a mfd driver to handle
the generic parts.

>       Now going back to the partitioning do I send this change out as
> a multi patch set consisting of 4 parts something as below:
> 
> patch 0 has a description
> 
> patch 1 has only the lock and related files
>         drivers/misc/Kconfig
>         drivers/misc/Makefile
>         include/linux/it87_lock.h
>         drivers/misc/it87_lock.c
> 
> patch 2 has drivers/watchdog changes
>         drivers/watchdog/Kconfig
>         drivers/watchdog/it8712f_wdt.c
>         drivers/watchdog/it87_wdt.c
> 
> patch 3 has drives/hwmon changes
>         drivers/hwmon/Kconfig
>         drivers/hwmon/it87.c
> 
Something like that. I have some doubts about using drivers/misc,
but I guess you'll get feedback on that after you submit the patch set.

Thanks,
Guenter
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