Date:   Tue, 7 Jul 2020 09:51:00 +0200
From:   Christian Brauner <christian.brauner@...ntu.com>
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     torvalds@...ux-foundation.org,
        ksummit-discuss@...ts.linuxfoundation.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org,
        tech-board-discuss@...ts.linuxfoundation.org,
        Chris Mason <clm@...clm>
Subject: Re: [Ksummit-discuss] [PATCH] CodingStyle: Inclusive Terminology

On Sat, Jul 04, 2020 at 01:02:51PM -0700, Dan Williams wrote:
> Recent events have prompted a Linux position statement on inclusive
> terminology. Given that Linux maintains a coding-style and its own
> idiomatic set of terminology here is a proposal to answer the call to
> replace non-inclusive terminology.
> 
> Cc: Jonathan Corbet <corbet@....net>
> Cc: Kees Cook <keescook@...omium.org>
> Signed-off-by: Chris Mason <clm@...clm>
> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Signed-off-by: Dan Williams <dan.j.williams@...el.com>
> ---

This is the right thing to do.

Acked-by: Christian Brauner <christian.brauner@...ntu.com>

(Imho, I agree with Andy and the historical bits could probably be
 moved into the changelog.)

>  Documentation/process/coding-style.rst          |   12 ++++
>  Documentation/process/inclusive-terminology.rst |   64 +++++++++++++++++++++++
>  Documentation/process/index.rst                 |    1 
>  3 files changed, 77 insertions(+)
>  create mode 100644 Documentation/process/inclusive-terminology.rst
> 
> diff --git a/Documentation/process/coding-style.rst b/Documentation/process/coding-style.rst
> index 2657a55c6f12..4b15ab671089 100644
> --- a/Documentation/process/coding-style.rst
> +++ b/Documentation/process/coding-style.rst
> @@ -319,6 +319,18 @@ If you are afraid to mix up your local variable names, you have another
>  problem, which is called the function-growth-hormone-imbalance syndrome.
>  See chapter 6 (Functions).
>  
> +For symbol names, avoid introducing new usage of the words 'slave' and
> +'blacklist'. Recommended replacements for 'slave' are: 'secondary',
> +'subordinate', 'replica', 'responder', 'follower', 'proxy', or
> +'performer'.  Recommended replacements for blacklist are: 'blocklist' or
> +'denylist'.
> +
> +Exceptions for introducing new usage is to maintain a userspace ABI, or
> +when updating code for an existing (as of 2020) hardware or protocol
> +specification that mandates those terms. For new specifications consider
> +translating specification usage of the terminology to the kernel coding
> +standard where possible. See :ref:`process/inclusive-terminology.rst
> +<inclusiveterminology>` for details.
>  
>  5) Typedefs
>  -----------
> diff --git a/Documentation/process/inclusive-terminology.rst b/Documentation/process/inclusive-terminology.rst
> new file mode 100644
> index 000000000000..a8eb26690eb4
> --- /dev/null
> +++ b/Documentation/process/inclusive-terminology.rst
> @@ -0,0 +1,64 @@
> +.. _inclusiveterminology:
> +
> +Linux kernel inclusive terminology
> +==================================
> +
> +The Linux kernel is a global software project, and in 2020 there was a
> +global reckoning on race relations that caused many organizations to
> +re-evaluate their policies and practices relative to the inclusion of
> +people of African descent. This document describes why the 'Naming'
> +section in :ref:`process/coding-style.rst <codingstyle>` recommends
> +avoiding usage of 'slave' and 'blacklist' in new additions to the Linux
> +kernel.
> +
> +On the triviality of replacing words
> +====================================
> +
> +The African slave trade was a brutal system of human misery deployed at
> +global scale. Some word choice decisions in a modern software project
> +does next to nothing to compensate for that legacy. So why put any
> +effort into something so trivial in comparison? Because the goal is not
> +to repair, or erase the past. The goal is to maximize availability and
> +efficiency of the global developer community to participate in the Linux
> +kernel development process.
> +
> +Word choice and developer efficiency
> +====================================
> +
> +Why does any software project go through the trouble of developing a
> +document like :ref:`process/coding-style.rst <codingstyle>`? It does so
> +because a common coding style maximizes the efficiency of both
> +maintainers and developers. Developers learn common design patterns and
> +idiomatic expressions while maintainers can spot deviations from those
> +norms. Even non-compliant whitespace is considered a leading indicator
> +to deeper problems in a patchset. Coding style violations are known to
> +take a maintainer "out of the zone" of reviewing code. Maintainers are
> +also sensitive to word choice across specifications and often choose to
> +deploy Linux terminology to replace non-idiomatic word-choice in a
> +specification.
> +
> +Non-inclusive terminology has that same distracting effect which is why
> +it is a style issue for Linux, it injures developer efficiency.
> +
> +Of course it is around this point someone jumps in with an etymological
> +argument about why people should not be offended. Etymological arguments
> +do not scale. The scope and pace of Linux to reach new developers
> +exceeds the ability of historical terminology defenders to describe "no,
> +not that connotation". The revelation of 2020 was that black voices were
> +heard on a global scale and the Linux kernel project has done its small
> +part to answer that call as it wants black voices, among all voices, in
> +its developer community.
> +
> +Really, 'blacklist' too?
> +========================
> +
> +While 'slave' has a direct connection to human suffering the etymology
> +of 'blacklist' is devoid of a historical racial connection. However, one
> +thought exercise is to consider replacing 'blacklist/whitelist' with
> +'redlist/greenlist'. Realize that the replacement only makes sense if
> +you have been socialized with the concepts that 'red/green' implies
> +'stop/go'. Colors to represent a policy requires an indirection. The
> +socialization of 'black/white' to have the connotation of
> +'impermissible/permissible' does not support inclusion.
> +
> +Inclusion == global developer community efficiency.
> diff --git a/Documentation/process/index.rst b/Documentation/process/index.rst
> index f07c9250c3ac..ed861f6f8d25 100644
> --- a/Documentation/process/index.rst
> +++ b/Documentation/process/index.rst
> @@ -27,6 +27,7 @@ Below are the essential guides that every developer should read.
>     submitting-patches
>     programming-language
>     coding-style
> +   inclusive-terminology
>     maintainer-pgp-guide
>     email-clients
>     kernel-enforcement-statement
> 
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