linux-kernel - Re: [PATCH v4 6/7] plist: Replace kernel.h with the necessary inclusions

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Message-ID: <YV8vHZg0Xcs0DbPV@smile.fi.intel.com>
Date:   Thu, 7 Oct 2021 20:32:13 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Joe Perches <joe@...ches.com>
Cc:     Brendan Higgins <brendanhiggins@...gle.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        kunit-dev@...glegroups.com, linux-media@...r.kernel.org,
        Ingo Molnar <mingo@...hat.com>, Will Deacon <will@...nel.org>,
        Waiman Long <longman@...hat.com>,
        Boqun Feng <boqun.feng@...il.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
        jic23@...nel.org, linux@...musvillemoes.dk,
        Thorsten Leemhuis <regressions@...mhuis.info>
Subject: Re: [PATCH v4 6/7] plist: Replace kernel.h with the necessary
 inclusions

On Thu, Oct 07, 2021 at 10:26:05AM -0700, Joe Perches wrote:
> On Thu, 2021-10-07 at 20:19 +0300, Andy Shevchenko wrote:
> > On Thu, Oct 07, 2021 at 10:12:56AM -0700, Joe Perches wrote:
> > > On Thu, 2021-10-07 at 18:44 +0300, Andy Shevchenko wrote:
> > > > When kernel.h is used in the headers it adds a lot into dependency hell,
> > > > especially when there are circular dependencies are involved.
> > > > 
> > > > Replace kernel.h inclusion with the list of what is really being used.
> > > []
> > > > diff --git a/include/linux/plist.h b/include/linux/plist.h
> > > []
> > > > @@ -73,8 +73,11 @@
> > > []
> > > > +#include <asm/bug.h>
> > > 
> > > why asm/bug.h and not linux/bug.h ?
> > 
> > The direct inclusion is from that one. Why linux/bug?
> 
> A general guideline is to avoid asm includes.

It's fine when it has any useful background. Doing cargo cult is not always
a good idea. I plead for common sense.

-- 
With Best Regards,
Andy Shevchenko