linux-kernel - Re: [PATCH] ipc: use __ARCH_WANT_IPC_PARSE

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Message-ID: <20090512001956.GA22859@us.ibm.com>
Date:	Mon, 11 May 2009 19:19:56 -0500
From:	"Serge E. Hallyn" <serue@...ibm.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	linux-kernel@...r.kernel.org, Cedric Le Goater <clg@...ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] ipc: use __ARCH_WANT_IPC_PARSE_VERSION in ipc/util.h

Quoting Arnd Bergmann (arnd@...db.de):
> The definition of ipc_parse_version depends on
> __ARCH_WANT_IPC_PARSE_VERSION, but the header file
> declares it conditionally based on the architecture.
> 
> Use the macro consistently to make it easier to add
> new architectures.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Makes sense!

Acked-by: Serge Hallyn <serue@...ibm.com>

thanks,
-serge

> ---
>  ipc/util.h |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/ipc/util.h b/ipc/util.h
> index 1187332..f9fe90e 100644
> --- a/ipc/util.h
> +++ b/ipc/util.h
> @@ -128,7 +128,7 @@ void ipc_update_perm(struct ipc64_perm *in, struct kern_ipc_perm *out);
>  struct kern_ipc_perm *ipcctl_pre_down(struct ipc_ids *ids, int id, int cmd,
>  				      struct ipc64_perm *perm, int extra_perm);
> 
> -#if defined(__ia64__) || defined(__x86_64__) || defined(__hppa__) || defined(__XTENSA__)
> +#ifndef __ARCH_WANT_IPC_PARSE_VERSION
>    /* On IA-64, we always use the "64-bit version" of the IPC structures.  */ 
>  # define ipc_parse_version(cmd)	IPC_64
>  #else
> -- 
> 1.6.0.4
> 
> -- 
> 
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