linux-kernel - Re: [PATCH] init/version.c: Define version_string only if CONFIG

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Message-Id: <20080714123858.2c42227f.randy.dunlap@oracle.com>
Date:	Mon, 14 Jul 2008 12:38:58 -0700
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Daniel Guilak <guilak@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, trivial@...nel.org,
	akpm@...ux-foundation.org, torvalds@...ux-foundation.org,
	daniel@...ielguilak.com
Subject: Re: [PATCH] init/version.c: Define version_string only if
 CONFIG_KALLSYMS is not defined.

On Mon, 14 Jul 2008 12:04:46 -0700 Daniel Guilak wrote:

> int Version_* is only used with ksymoops, which is only needed (according to
> README and Documentation/Changes) if CONFIG_KALLSYMS is NOT defined.  Therefore
> this patch defines version_string only if CONFIG_KALLSYMS is not defined.
> 
> Signed-off-by: Daniel Guilak <daniel@...ielguilak.com>
> ---
>  init/version.c |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
> 
> Depends on "[PATCH] init/version.c: Silenced sparse warning by declaring the version string."
> 
> diff --git a/init/version.c b/init/version.c
> index 041fd82..52a8b98 100644
> --- a/init/version.c
> +++ b/init/version.c
> @@ -13,11 +13,13 @@
>  #include <linux/utsrelease.h>
>  #include <linux/version.h>
>  
> +#ifndef CONFIG_KALLSYMS
>  #define version(a) Version_ ## a
>  #define version_string(a) version(a)
>  
>  extern int version_string(LINUX_VERSION_CODE);
>  int version_string(LINUX_VERSION_CODE);
> +#endif
>  
>  struct uts_namespace init_uts_ns = {
>  	.kref = {
> -- 

Does not apply cleanly to linux-2.6.26, linux-next-20080714, or Linus-git-head.

and why do we ned both extern int version_string()
and int version_string() ?

---
~Randy
Linux Plumbers Conference, 17-19 September 2008, Portland, Oregon USA
http://linuxplumbersconf.org/
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