linux-kernel - Re: [PATCH 19/40] change alloc_pages name in dma_map

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Message-ID: <20230503122529.44ef2d56@gandalf.local.home>
Date:   Wed, 3 May 2023 12:25:29 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Suren Baghdasaryan <surenb@...gle.com>
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Subject: Re: [PATCH 19/40] change alloc_pages name in dma_map_ops to avoid
 name conflicts

On Mon,  1 May 2023 09:54:29 -0700
Suren Baghdasaryan <surenb@...gle.com> wrote:

> After redefining alloc_pages, all uses of that name are being replaced.
> Change the conflicting names to prevent preprocessor from replacing them
> when it's not intended.

Note, every change log should have enough information in it to know why it
is being done. This says what the patch does, but does not fully explain
"why". It should never be assumed that one must read other patches to get
the context. A year from now, investigating git history, this may be the
only thing someone sees for why this change occurred.

The "why" above is simply "prevent preprocessor from replacing them
when it's not intended". What does that mean?

-- Steve


> 
> Signed-off-by: Suren Baghdasaryan <surenb@...gle.com>