linux-kernel - Re: [PATCH] drivers/misc: make arm-charlcd.c explicitly non-modular

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Date:	Tue, 15 Dec 2015 14:45:32 +0100
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Paul Gortmaker <paul.gortmaker@...driver.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] drivers/misc: make arm-charlcd.c explicitly non-modular

On Mon, Dec 14, 2015 at 2:07 AM, Paul Gortmaker
<paul.gortmaker@...driver.com> wrote:

> The Kconfig currently controlling compilation of this code is:
>
> drivers/misc/Kconfig:config ARM_CHARLCD
> drivers/misc/Kconfig:   bool "ARM Ltd. Character LCD Driver"
>
> ...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.
>
> We explicitly disallow a driver unbind, since that doesn't have a
> sensible use case anyway, and this driver did not have a ".remove"
> function coded for non-modular drivers either.
>
> Since module_platform_driver() uses the same init level priority as
> builtin_platform_driver() the init ordering remains unchanged with
> this commit.
>
> We don't replace module.h with init.h since the file already has that.
>
> 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: Arnd Bergmann <arnd@...db.de>
> Cc: Linus Walleij <linus.walleij@...aro.org>
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Cc: linux-arm-kernel@...ts.infradead.org
> Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>

I would consider the modular code a copy/paste error. Unfortunately
not uncommon in the kernel :(

Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

Thanks for doing this and keeping the kernel clean.

Yours,
Linus Walleij
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