linux-kernel - Re: [PATCH 2/4] kernel hacking: new config NO_AUTO_INLINE to disable compiler auto-inline optimizations

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Message-ID: <20181018125948.789c72de@gandalf.local.home>
Date:   Thu, 18 Oct 2018 12:59:48 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Du Changbin <changbin.du@...il.com>
Cc:     yamada.masahiro@...ionext.com, michal.lkml@...kovi.net,
        tglx@...utronix.de, mingo@...hat.com, linux@...linux.org.uk,
        akpm@...ux-foundation.org, x86@...nel.org,
        linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-sparse@...r.kernel.org,
        Changbin Du <changbin.du@...el.com>
Subject: Re: [PATCH 2/4] kernel hacking: new config NO_AUTO_INLINE to
 disable compiler auto-inline optimizations

On Thu, 18 Oct 2018 16:25:46 +0000
Du Changbin <changbin.du@...il.com> wrote:

> From: Changbin Du <changbin.du@...el.com>
> 
> This patch add a new kernel hacking option NO_AUTO_INLINE. Selecting
> this option will prevent the compiler from optimizing the kernel by
> auto-inlining functions not marked with the inline keyword.
> 
> With this option, only functions explicitly marked with "inline" will
> be inlined. This will allow the function tracer to trace more functions
> because it only traces functions that the compiler has not inlined.
> 
> Signed-off-by: Changbin Du <changbin.du@...el.com>
> Acked-by: Steven Rostedt (VMware) <rostedt@...dmis.org>

I have acked patch this before, but this particular patch has extra
changes that I have not acked.



> +config ENABLE_WARN_DEPRECATED
> +	bool "Enable __deprecated logic"
> +	default y
> +	help
> +	  Enable the __deprecated logic in the kernel build.
> +	  Disable this to suppress the "warning: 'foo' is deprecated
> +	  (declared at kernel/power/somefile.c:1234)" messages.
> +

What is that?

-- Steve