linux-kernel - Re: [RFC][PATCH] Add EXPORT_MACRO

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Message-ID: <20161022150852.0e54e763@gandalf.local.home>
Date:   Sat, 22 Oct 2016 15:08:52 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Nicholas Piggin <npiggin@...il.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Al Viro <viro@...IV.linux.org.uk>,
        Borislav Petkov <bp@...en8.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...nel.org>,
        Gabriel C <nix.or.die@...il.com>
Subject: Re: [RFC][PATCH] Add EXPORT_MACRO_SYMBOL() for asm

On Sat, 22 Oct 2016 10:44:41 +1100
Nicholas Piggin <npiggin@...il.com> wrote:

> >  #ifdef CONFIG_FUNCTION_GRAPH_TRACER
> > diff --git a/include/asm-generic/export.h b/include/asm-generic/export.h
> > index 43199a049da5..cb86e746865e 100644
> > --- a/include/asm-generic/export.h
> > +++ b/include/asm-generic/export.h
> > @@ -90,5 +90,10 @@
> >  	__EXPORT_SYMBOL(name, KSYM(name),)
> >  #define EXPORT_DATA_SYMBOL_GPL(name)				\
> >  	__EXPORT_SYMBOL(name, KSYM(name),_gpl)
> > +/*
> > + * If "name" is a macro of a function and not a function itself,
> > + * it needs a second pass.
> > + */
> > +#define EXPORT_MACRO_SYMBOL(x) EXPORT_SYMBOL(x)  
> 
> Seems okay, but what about just calling it EXPORT_SYMBOL?


Actually, this doesn't work. There's some magic going on it
Makefile.build in the scripts directory that causes this to fail.

I have another patch I'll be sending on Monday that fixes this.

-- Steve