linux-kernel - Re: [PATCH] Introduce two new maturlty levels: DEPRECATED and OBSOLETE.

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Message-ID: <45AE9B85.7090608@zytor.com>
Date:	Wed, 17 Jan 2007 13:56:21 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	"Robert P. J. Day" <rpjday@...dspring.com>
CC:	Linux kernel mailing list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Introduce two new maturlty levels:  DEPRECATED and OBSOLETE.

Robert P. J. Day wrote:
>   To go along with the EXPERIMENTAL kernel config status, introduce
> two new states:  DEPRECATED and OBSOLETE.
> 
> Signed-off-by: Robert P. J. Day <rpjday@...dspring.com>
> 
> ---
> 
>   just adding these config variables to init/Kconfig shouldn't affect
> the current build status, but it will allow developers to start to
> move over their portions of tree at their convenience.
> 
>   in particular, features that are truly obsolete should be tagged as
> OBSOLETE, as opposed to EXPERIMENTAL.
> 
> 
> diff --git a/init/Kconfig b/init/Kconfig
> index a3f83e2..f861efd 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -29,9 +29,10 @@ config EXPERIMENTAL
>  	  <file:Documentation/BUG-HUNTING>, and
>  	  <file:Documentation/oops-tracing.txt> in the kernel source).
> 
> -	  This option will also make obsoleted drivers available. These are
> -	  drivers that have been replaced by something else, and/or are
> -	  scheduled to be removed in a future kernel release.
> +	  At the moment, this option also makes obsolete drivers available,
> +	  but such drivers really should be removed from the EXPERIMENTAL
> +	  category and added to either DEPRECATED or OBSOLETE, depending
> +	  on their status.
> 
>  	  Unless you intend to help test and develop a feature or driver that
>  	  falls into this category, or you have a situation that requires
> @@ -40,6 +41,23 @@ config EXPERIMENTAL
>  	  you say Y here, you will be offered the choice of using features or
>  	  drivers that are currently considered to be in the alpha-test phase.
> 
> +config DEPRECATED
> +	bool "Prompt for deprecated code/drivers"
> +	---help---
> +	  Code that has tagged as "deprecated" is officially still available
> +	  for use but will typically have already been scheduled for removal
> +	  at some point, so it's in your best interests to start looking for
> +	  an alternative.
> +

DEPRECATED should presumably default to Y; OBSOLETE to n.

	-hpa
-
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