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: <20181018170333.ctwhuyecd5m6wxoh@mail.google.com>
Date:   Thu, 18 Oct 2018 17:03:33 +0000
From:   Du Changbin <changbin.du@...il.com>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Du Changbin <changbin.du@...il.com>, 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, Oct 18, 2018 at 12:59:48PM -0400, Steven Rostedt wrote:
> 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.
>
Steven, no extra changes made. I just wronly rebased it on top of mainline.
:)

> 
> 
> > +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

-- 
Thanks,
Du Changbin