linux-kernel - Re: [PATCH] markers/tracpoints: fix non-modular build

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Date:	Mon, 17 Nov 2008 00:39:36 -0500
From:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Lai Jiangshan <laijs@...fujitsu.com>
Subject: Re: [PATCH] markers/tracpoints: fix non-modular build

* Ingo Molnar (mingo@...e.hu) wrote:
> 
> * Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca> wrote:
> 
> > Use module notifiers instead of adding a hook in module.c.
> > 
> > Impact: cleanup.
> > 
> > Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
> > CC: 'Ingo Molnar' <mingo@...e.hu>
> > CC: Lai Jiangshan <laijs@...fujitsu.com>
> > ---
> >  kernel/marker.c |   29 +++++++++++++++++++++++++++++
> >  kernel/module.c |    4 ----
> >  2 files changed, 29 insertions(+), 4 deletions(-)
> 
> From 227a837567e339c74d9d4243d03a29bd943a018c Mon Sep 17 00:00:00 2001
> From: Ingo Molnar <mingo@...e.hu>
> Date: Sun, 16 Nov 2008 09:50:34 +0100
> Subject: [PATCH] markers/tracpoints: fix non-modular build
> 
> fix:
> 
>  kernel/marker.c: In function 'marker_module_notify':
>  kernel/marker.c:905: error: 'MODULE_STATE_COMING' undeclared (first use in this function)
>  [...]
> 
> Signed-off-by: Ingo Molnar <mingo@...e.hu>

Yes, that's needed. Thanks for preparing this patch.

Acked-by: Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>

> ---
>  kernel/marker.c     |    4 ++++
>  kernel/tracepoint.c |    4 ++++
>  2 files changed, 8 insertions(+), 0 deletions(-)
> 
> diff --git a/kernel/marker.c b/kernel/marker.c
> index c14ec26..ea54f26 100644
> --- a/kernel/marker.c
> +++ b/kernel/marker.c
> @@ -896,6 +896,8 @@ void *marker_get_private_data(const char *name, marker_probe_func *probe,
>  }
>  EXPORT_SYMBOL_GPL(marker_get_private_data);
>  
> +#ifdef CONFIG_MODULES
> +
>  int marker_module_notify(struct notifier_block *self,
>  			 unsigned long val, void *data)
>  {
> @@ -924,3 +926,5 @@ static int init_markers(void)
>  	return register_module_notifier(&marker_module_nb);
>  }
>  __initcall(init_markers);
> +
> +#endif /* CONFIG_MODULES */
> diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
> index 94ac4e3..7960274 100644
> --- a/kernel/tracepoint.c
> +++ b/kernel/tracepoint.c
> @@ -542,6 +542,8 @@ void tracepoint_iter_reset(struct tracepoint_iter *iter)
>  }
>  EXPORT_SYMBOL_GPL(tracepoint_iter_reset);
>  
> +#ifdef CONFIG_MODULES
> +
>  int tracepoint_module_notify(struct notifier_block *self,
>  			     unsigned long val, void *data)
>  {
> @@ -570,3 +572,5 @@ static int init_tracepoints(void)
>  	return register_module_notifier(&tracepoint_module_nb);
>  }
>  __initcall(init_tracepoints);
> +
> +#endif /* CONFIG_MODULES */

-- 
Mathieu Desnoyers
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
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