linux-kernel - Re: [RFC][PATCH] printk: Fixup the nmi printk mess

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Message-ID: <20150610115305.669c53e9@gandalf.local.home>
Date:	Wed, 10 Jun 2015 11:53:05 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	linux-kernel@...r.kernel.org, jkosina@...e.cz,
	paulmck@...ux.vnet.ibm.com, pmladek@...e.cz,
	Ingo Molnar <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [RFC][PATCH] printk: Fixup the nmi printk mess

On Wed, 10 Jun 2015 14:55:09 +0200
Peter Zijlstra <peterz@...radead.org> wrote:

> diff --git a/include/linux/printk.h b/include/linux/printk.h
> index 9b30871c9149..ebe017327e6e 100644
> --- a/include/linux/printk.h
> +++ b/include/linux/printk.h
> @@ -120,7 +120,15 @@ static inline __printf(1, 2) __cold
>  void early_printk(const char *s, ...) { }
>  #endif
>  
> -typedef int(*printk_func_t)(const char *fmt, va_list args);
> +#ifdef CONFIG_PRINTK_NMI
> +extern void printk_init(void);
> +extern void printk_nmi_enter(void);
> +extern void printk_nmi_exit(void);
> +#else
> +static inline void printk_init(void) { }
> +static inline void printk_nmi_enter(void) { }
> +static inline void printk_nmi_exit(void) { }
> +#endif /* HAVE_NMI */

#endif /* PRINTK_NMI */

-- Steve

>  
>  #ifdef CONFIG_PRINTK
>  asmlinkage __printf(5, 0)
> diff --git a/init/Kconfig b/init/Kconfig
> index b999fa381bf9..fe9a439c8843 100644



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