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

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Date:   Tue, 2 May 2023 16:18:04 -0400
From:   Kent Overstreet <kent.overstreet@...ux.dev>
To:     Petr Tesařík <petr@...arici.cz>
Cc:     Suren Baghdasaryan <surenb@...gle.com>, akpm@...ux-foundation.org,
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Subject: Re: [PATCH 19/40] change alloc_pages name in dma_map_ops to avoid
 name conflicts

On Tue, May 02, 2023 at 10:09:09PM +0200, Petr Tesařík wrote:
> Ah, right, I admit I did not quite understand why this change is
> needed. However, this is exactly what I don't like about preprocessor
> macros. Each macro effectively adds a new keyword to the language.
> 
> I believe everything can be solved with inline functions. What exactly
> does not work if you rename alloc_pages() to e.g. alloc_pages_caller()
> and then add an alloc_pages() inline function which calls
> alloc_pages_caller() with _RET_IP_ as a parameter?

Perhaps you should spend a little more time reading the patchset and
learning how the code works before commenting.