linux-kernel - Re: [PATCH 1/7] gpiolib: clean up includes

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Date:   Tue, 31 Jan 2017 14:20:02 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Bartosz Golaszewski <bgolaszewski@...libre.com>
Cc:     Alexandre Courbot <gnurou@...il.com>,
        Bamvor Jian Zhang <bamvor.zhangjian@...aro.org>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/7] gpiolib: clean up includes

On Wed, Jan 25, 2017 at 4:34 PM, Bartosz Golaszewski
<bgolaszewski@...libre.com> wrote:

> gpiolib.h uses enum gpiod_flags, but doesn't pull in gpio/consumer.h.
> Include it in gpiolib.h and don't include neither consumer.h nor
> driver.h from modules that already include gpiolib.h.

Nah.... .c files should include the headers representing the
symbols they use. Not rely on secondary inclusions.

Drivers should ideally *always* and *only*
include <linux/gpio/driver.h>. If they include other stuff,
that is just tautological icing on the cake.

So, I'm gonna drop this.

Yours,
Linus Walleij