linux-kernel - Re: [PATCH net-next] page_pool: split types and declarations from page

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Date:   Thu, 20 Jul 2023 09:22:47 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Yunsheng Lin <linyunsheng@...wei.com>
Cc:     Alexander Lobakin <aleksander.lobakin@...el.com>,
        <davem@...emloft.net>, <pabeni@...hat.com>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Wei Fang <wei.fang@....com>,
        Shenwei Wang <shenwei.wang@....com>,
        Clark Wang <xiaoning.wang@....com>,
        NXP Linux Team <linux-imx@....com>,
        Sunil Goutham <sgoutham@...vell.com>,
        Geetha sowjanya <gakula@...vell.com>,
        Subbaraya Sundeep <sbhatta@...vell.com>,
        hariprasad <hkelam@...vell.com>,
        Saeed Mahameed <saeedm@...dia.com>,
        Leon Romanovsky <leon@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        John Fastabend <john.fastabend@...il.com>,
        Felix Fietkau <nbd@....name>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        Ryder Lee <ryder.lee@...iatek.com>,
        Shayne Chen <shayne.chen@...iatek.com>,
        Sean Wang <sean.wang@...iatek.com>,
        Kalle Valo <kvalo@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Ilias Apalodimas <ilias.apalodimas@...aro.org>,
        <linux-rdma@...r.kernel.org>, <bpf@...r.kernel.org>,
        <linux-wireless@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>
Subject: Re: [PATCH net-next] page_pool: split types and declarations from
 page_pool.h

On Thu, 20 Jul 2023 19:07:31 +0800 Yunsheng Lin wrote:
> > BTW, what do you think: is it better to have those two includes in the
> > root include/net/ folder or do something like
> > 
> > include/net/page_pool/
> >   * types.h
> >   * <some meaningful name>.h (let's say driver.h)
> > 
> > like it's done e.g. for GPIO (see include/linux/gpio/)?  
> 
> It make more sense to add a new dir for page pool if there are
> more new headers added. As we are still keeping the page_pool.h
> mirroring include/linux/gpio.h, adding a new dir for only one
> header file only add another level of dir without abvious benefit.
> We can add a new dir for it if we turn out to be needing more header
> file for page pool in the future, does it make sense?

It doesn't matter all that much so I think to have some uniformity 
in networking please go with Olek's suggestion which is also my
preference.