linux-kernel - Re: [PATCH 4/7] drivers/mfd: make max14577.c explicitly non-modular

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Date:	Mon, 04 Apr 2016 12:42:34 +0900
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Paul Gortmaker <paul.gortmaker@...driver.com>,
	linux-kernel@...r.kernel.org
Cc:	Chanwoo Choi <cw00.choi@...sung.com>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Lee Jones <lee.jones@...aro.org>,
	Javier Martinez Canillas <javier@....samsung.com>
Subject: Re: [PATCH 4/7] drivers/mfd: make max14577.c explicitly non-modular

On 04.04.2016 06:24, Paul Gortmaker wrote:
> The Kconfig currently controlling compilation of this code is:
> 
> mfd/Kconfig:config MFD_MAX14577
> mfd/Kconfig:   bool "Maxim Semiconductor MAX14577/77836 MUIC + Charger Support"
> 
> ...meaning that it currently is not being built as a module by anyone.
> 
> Lets remove the modular code that is essentially orphaned, so that
> when reading the driver there is no doubt it is builtin-only.
> 
> Since module_init was not in use by this code, the init ordering
> remains unchanged with this commit.
> 
> Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
> 
> We also delete the MODULE_LICENSE tag etc. since all that information
> is already contained at the top of the file in the comments.
> 
> Cc: Chanwoo Choi <cw00.choi@...sung.com>
> Cc: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> Cc: Samuel Ortiz <sameo@...ux.intel.com>
> Cc: Lee Jones <lee.jones@...aro.org>
> Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
> ---
>  drivers/mfd/max14577.c | 13 +------------
>  1 file changed, 1 insertion(+), 12 deletions(-)

+Cc Javier,

In general I agree with the patchset except maybe here because it
conflicts with Javier's work to make it a module:
mfd: max14577: Use module_init() instead of subsys_initcall()
http://www.spinics.net/lists/kernel/msg2213747.html

Javier's patchset is however missing a tested-by tag so maybe this is
why it was not merged.

Unfortunately I cannot provide testing because my current device with
max14577/max77836 is dead and its recovery is not easy. Maybe I will get
a proper device in a few weeks after going back to Poland.

My proposal would be to wait with this max14577 change a little bit.

Best regards,
Krzysztof