linux-kernel - Re: [PATCH] mfd: fix modular builds of rc5t583 regulator support

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Date:	Mon, 16 Apr 2012 21:26:41 +0200
From:	Samuel Ortiz <sameo@...ux.intel.com>
To:	Paul Gortmaker <paul.gortmaker@...driver.com>
Cc:	Laxman Dewangan <ldewangan@...dia.com>,
	"broonie@...nsource.wolfsonmicro.com" 
	<broonie@...nsource.wolfsonmicro.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-next@...r.kernel.org" <linux-next@...r.kernel.org>
Subject: Re: [PATCH] mfd: fix modular builds of rc5t583 regulator support

Hi Paul, Laxman,

On Mon, Apr 16, 2012 at 10:12:21AM -0400, Paul Gortmaker wrote:
> On 12-04-16 02:54 AM, Laxman Dewangan wrote:
> > On Monday 16 April 2012 09:38 AM, Paul Gortmaker wrote:
> >> The combination of commit 1b1247dd75aa5cf5fae54a3bec7280046e9c7957
> >>
> >>      "mfd: Add support for RICOH PMIC RC5T583"
> >>
> >> and commit 6ffc3270210efa2bea526953a142ffc908f5bd86
> >>
> >>      "regulator: Add support for RICOH PMIC RC5T583 regulator"
> >>
> >> are causing the i386 allmodconfig builds to fail with this:
> >>
> >>    ERROR: "rc5t583_update" [drivers/regulator/rc5t583-regulator.ko] undefined!
> >>    ERROR: "rc5t583_set_bits" [drivers/regulator/rc5t583-regulator.ko] undefined!
> >>    ERROR: "rc5t583_clear_bits" [drivers/regulator/rc5t583-regulator.ko] undefined!
> >>    ERROR: "rc5t583_read" [drivers/regulator/rc5t583-regulator.ko] undefined!
> >>
> >> and this:
> >>
> >>    ERROR: "rc5t583_ext_power_req_config" [drivers/regulator/rc5t583-regulator.ko] undefined!
> >>
> >> For the 1st four, make the simple ops static inline, instead of
> >> polluting the namespace with trivial exports.  For the last one,
> >> add an EXPORT_SYMBOL.
> >>
> >> Signed-off-by: Paul Gortmaker<paul.gortmaker@...driver.com>
> >> ---
> >>
> >> [ alternately, make REGULATOR_RC5T583 bool instead of tristate? ]
> > 
> > Why not export all require symbol from mfd core.
> > I am sending the patch to exporting all required apis. Please review.
> 
> As I said in the commit log, it doesn't seem to make sense to export
> them when they are trivial enough to be static inline, since it
> avoids having them pollute the /proc/kallsyms namespace.
I'm applying Paul's patch to my for-linus branch, thanks guys.

Cheers,
Samuel.

-- 
Intel Open Source Technology Centre
http://oss.intel.com/
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