linux-kernel - Re: [GIT PULL] pin control bulk changes for v4.16

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Message-ID: <CA+55aFzhp2QW9JeMwV6=W4skf0CW6E+Zg4K90n3Bo+yZmz485Q@mail.gmail.com>
Date:   Fri, 2 Feb 2018 16:51:05 -0800
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Ingo Molnar <mingo@...nel.org>
Cc:     linux-kernel <linux-kernel@...r.kernel.org>,
        linux-gpio@...r.kernel.org
Subject: Re: [GIT PULL] pin control bulk changes for v4.16

On Fri, Feb 2, 2018 at 4:44 PM, Linus Torvalds
<torvalds@...ux-foundation.org> wrote:
>
> Stupid patch attached. I don't know how much this helps the insane
> dependency hell for <linux/pinctrl/devinfo.h>, but it's bound to help
> _some_.

Testing it, that patch definitely cuts down on recompiles after

     touch include/linux/pinctrl/devinfo.h

a lot.

It still ends up rebuilding a fair amount of odd drivers, but now the
files it rebuilds at least make _some_ sense.

It used to really rebuild just about everything (because pretty much
everything includes <linux/device.h>). Now it rebuilds various snd/soc
files,gpio stuff and mmc/mfc stuff.

I'm sure it could be improved upon still, but I think this is already
a fairly noticeable improvement.

One odd header include down. Ten million to go.

             Linus