linux-kernel - Re: [PATCH -tip v5 1/2] irq: Introduce CONFIG

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Message-ID: <20170728063603.gmew42j5luosk5hw@gmail.com>
Date:   Fri, 28 Jul 2017 08:36:03 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     Masami Hiramatsu <mhiramat@...nel.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Francis Deslauriers <francis.deslauriers@...icios.com>,
        mathieu.desnoyers@...icios.com, Ingo Molnar <mingo@...hat.com>,
        "H . Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Ananth N Mavinakayanahalli <ananth@...ibm.com>,
        Anil S Keshavamurthy <anil.s.keshavamurthy@...el.com>,
        "David S . Miller" <davem@...emloft.net>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH -tip v5 1/2] irq: Introduce CONFIG_IRQENTRY kconfig


* Masami Hiramatsu <mhiramat@...nel.org> wrote:

> Introduce CONFIG_IRQENTRY to simplify generating
> irqentry and softirqentry text sections.
> Currently generating those sections depends on
> CONFIG_FUNCTION_GRAPH_TRACER and/or CONFIG_KASAN, in
> each source code. This moves those #ifdef dependencies
> into Kconfig, instead of the actual code. This makes
> it scalable for other user of irqentry section.

Please just make it unconditional. That would remove a number of messy #ifdefs, 
and extra sections/symbols don't have much if any cost.

Thanks,

	Ingo