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Message-ID: <87jz5rv40w.fsf@toke.dk>
Date: Wed, 04 Jun 2025 18:57:03 +0200
From: Toke Høiland-Jørgensen <toke@...hat.com>
To: Byungchul Park <byungchul@...com>, willy@...radead.org,
netdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, linux-mm@...ck.org,
kernel_team@...ynix.com, kuba@...nel.org, almasrymina@...gle.com,
ilias.apalodimas@...aro.org, harry.yoo@...cle.com, hawk@...nel.org,
akpm@...ux-foundation.org, davem@...emloft.net, john.fastabend@...il.com,
andrew+netdev@...n.ch, asml.silence@...il.com, tariqt@...dia.com,
edumazet@...gle.com, pabeni@...hat.com, saeedm@...dia.com,
leon@...nel.org, ast@...nel.org, daniel@...earbox.net, david@...hat.com,
lorenzo.stoakes@...cle.com, Liam.Howlett@...cle.com, vbabka@...e.cz,
rppt@...nel.org, surenb@...gle.com, mhocko@...e.com, horms@...nel.org,
linux-rdma@...r.kernel.org, bpf@...r.kernel.org, vishal.moola@...il.com
Subject: Re: [RFC v4 14/18] page_pool: make page_pool_get_dma_addr() just
wrap page_pool_get_dma_addr_netmem()
Byungchul Park <byungchul@...com> writes:
> The page pool members in struct page cannot be removed unless it's not
> allowed to access any of them via struct page.
>
> Do not access 'page->dma_addr' directly in page_pool_get_dma_addr() but
> just wrap page_pool_get_dma_addr_netmem() safely.
>
> Signed-off-by: Byungchul Park <byungchul@...com>
> Reviewed-by: Mina Almasry <almasrymina@...gle.com>
> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@...aro.org>
Reviewed-by: Toke Høiland-Jørgensen <toke@...hat.com>
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