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Message-ID: <20090926114740.182d8b70@hyperion.delvare>
Date: Sat, 26 Sep 2009 11:47:40 +0200
From: Jean Delvare <khali@...ux-fr.org>
To: Randy Dunlap <randy.dunlap@...cle.com>
Cc: Stephen Rothwell <sfr@...b.auug.org.au>,
linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
Mika Kuoppala <mika.kuoppala@...ia.com>,
Peter Ujfalusi <peter.ujfalusi@...ia.com>
Subject: Re: [PATCH -next] i2c: uses/select RT_MUTEXES
Hi Randy,
On Fri, 25 Sep 2009 15:20:03 -0700, Randy Dunlap wrote:
> From: Randy Dunlap <randy.dunlap@...cle.com>
>
> i2c-core uses rt mutexes, so it needs to select that
> kconfig symbol since there is no prompt for it.
>
> ERROR: "rt_mutex_lock" [drivers/i2c/i2c-core.ko] undefined!
> ERROR: "__rt_mutex_init" [drivers/i2c/i2c-core.ko] undefined!
> ERROR: "rt_mutex_trylock" [drivers/i2c/i2c-core.ko] undefined!
> ERROR: "rt_mutex_unlock" [drivers/i2c/i2c-core.ko] undefined!
>
> Signed-off-by: Randy Dunlap <randy.dunlap@...cle.com>
> ---
> drivers/i2c/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> --- linux-next-20090925.orig/drivers/i2c/Kconfig
> +++ linux-next-20090925/drivers/i2c/Kconfig
> @@ -5,6 +5,7 @@
> menuconfig I2C
> tristate "I2C support"
> depends on HAS_IOMEM
> + select RT_MUTEXES
> ---help---
> I2C (pronounce: I-square-C) is a slow serial bus protocol used in
> many micro controller applications and developed by Philips. SMBus,
Thanks for the fix, I've folded it into
i2c-prevent-priority-inversion-on-top-of-bus-lock.patch.
--
Jean Delvare
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