linux-kernel - Re: [PATCH 18/22] mfd: wm831x-i2c: Make it explicitly non-modular

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Message-ID: <20181205113820.GZ16508@imbe.wolfsonmicro.main>
Date:   Wed, 5 Dec 2018 11:38:20 +0000
From:   Charles Keepax <ckeepax@...nsource.cirrus.com>
To:     Paul Gortmaker <paul.gortmaker@...driver.com>
CC:     Lee Jones <lee.jones@...aro.org>, <linux-kernel@...r.kernel.org>,
        <patches@...nsource.cirrus.com>
Subject: Re: [PATCH 18/22] mfd: wm831x-i2c: Make it explicitly non-modular

On Sun, Dec 02, 2018 at 11:23:25PM -0500, Paul Gortmaker wrote:
> The Kconfig currently controlling compilation of this code is:
> 
> drivers/mfd/Kconfig:config MFD_WM831X_I2C
> drivers/mfd/Kconfig:    bool "Wolfson Microelectronics WM831x/2x PMICs with I2C"
> 
> ...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 it allows us to drop the ".remove"
> code for non-modular drivers.
> 
> 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.
> 
> Cc: Lee Jones <lee.jones@...aro.org>
> Cc: patches@...nsource.cirrus.com
> Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
> ---
> -static int wm831x_i2c_remove(struct i2c_client *i2c)
> -{
> -	struct wm831x *wm831x = i2c_get_clientdata(i2c);
> -
> -	wm831x_device_exit(wm831x);

These patches remove the only callers of wm831x_device_exit, so I
guess we should probably remove that function too?

Thanks,
Charles