linux-kernel - Re: [PATCH v5 RFC 1/6] page_pool: frag API support for 32-bit arch with 64-bit DMA

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Date:   Tue, 18 Jul 2023 11:16:21 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Yunsheng Lin <linyunsheng@...wei.com>
Cc:     Alexander Lobakin <aleksander.lobakin@...el.com>,
        Yunsheng Lin <yunshenglin0825@...il.com>,
        <davem@...emloft.net>, <pabeni@...hat.com>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        Alexander Duyck <alexander.duyck@...il.com>,
        Liang Chen <liangchen.linux@...il.com>,
        Saeed Mahameed <saeedm@...dia.com>,
        Leon Romanovsky <leon@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        Ilias Apalodimas <ilias.apalodimas@...aro.org>
Subject: Re: [PATCH v5 RFC 1/6] page_pool: frag API support for 32-bit arch
 with 64-bit DMA

On Mon, 17 Jul 2023 20:33:05 +0800 Yunsheng Lin wrote:
> > Only those used in function prototypes. Pointers in structures 
> > are somewhat special and don't require fwd declaration.  
> 
> I gave it a try to split it, and something as below come out:
> 
> https://github.com/gestionlin/linux/commit/11ac8c1959f7eda06a7b987903f37212b490b292
> 
> As the 'helpers.h' is not really useful when splitting, so only
> 'page_pool_types.h' is added, and include 'page_pool_types.h' in
> 'page_pool.h', does it make sense?
> 
> As Alexander is sending a new RFC for the similar problem, I think
> we need to align on which is the better way to solve the problem.

LGTM, thanks!