linux-kernel - Re: [PATCH] init: add comments to keep initcall-names in sync with initcall levels

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Date:	Thu, 14 Jun 2012 21:23:03 +0200
From:	Paul Bolle <pebolle@...cali.nl>
To:	Jim Cromie <jim.cromie@...il.com>
Cc:	rusty@...tcorp.com.au, linux-kernel@...r.kernel.org, bp@...64.org,
	pawel.moll@....com, jbaron@...hat.com, gregkh@...uxfoundation.org
Subject: Re: [PATCH] init: add comments to keep initcall-names in sync with
 initcall levels

On Thu, 2012-06-14 at 12:51 -0600, Jim Cromie wrote:
> main.c has initcall_level_names[] for parse_args to print in debug messages,
> add comments to keep them in sync with initcalls defined in init.h.
> Also tweak comment re not using *_initcall macros in loadable modules.
> 
> Signed-off-by: Jim Cromie <jim.cromie@...il.com>
> ---
>  include/linux/init.h |    3 ++-
>  init/main.c          |    1 +
>  2 files changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/include/linux/init.h b/include/linux/init.h
> index 6b95109..da6f6f9 100644
> --- a/include/linux/init.h
> +++ b/include/linux/init.h
> @@ -191,6 +191,7 @@ extern bool initcall_debug;
>   * initializes variables that couldn't be statically initialized.
>   *
>   * This only exists for built-in code, not for modules.
> + * Keep main.c:initcall_level_names[] in sync. */
>   */

This comment now ends with "*/" twice. Perhaps that's legal (I haven't
even bothered to check) but it is really too ugly. 

>  #define pure_initcall(fn)		__define_initcall("0",fn,0)
>  
> @@ -280,7 +281,7 @@ void __init parse_early_options(char *cmdline);
>  
>  #else /* MODULE */
>  
> -/* Don't use these in modules, but some people do... */
> +/* Don't use these in loadable modules, but some people do... */

What problem does this solve?

>  #define early_initcall(fn)		module_init(fn)
>  #define core_initcall(fn)		module_init(fn)
>  #define postcore_initcall(fn)		module_init(fn)
> diff --git a/init/main.c b/init/main.c
> index b5cc0a7..7a74087 100644
> --- a/init/main.c
> +++ b/init/main.c
> @@ -724,6 +724,7 @@ static initcall_t *initcall_levels[] __initdata = {
>  	__initcall_end,
>  };
>  
> +/* Keep these in sync with initcalls in include/linux/init.h */
>  static char *initcall_level_names[] __initdata = {
>  	"early",
>  	"core",


Paul Bolle

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