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From: "Christian König" <christian.koenig@amd.com>
To: Jakub Kicinski <kuba@kernel.org>,
	Bobby Eshleman <bobbyeshleman@gmail.com>
Cc: Donald Hunter <donald.hunter@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Paolo Abeni <pabeni@redhat.com>, Simon Horman <horms@kernel.org>,
	Andrew Lunn <andrew+netdev@lunn.ch>,
	Gerd Hoffmann <kraxel@redhat.com>,
	Vivek Kasireddy <vivek.kasireddy@intel.com>,
	Sumit Semwal <sumit.semwal@linaro.org>,
	Shuah Khan <shuah@kernel.org>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org,
	linaro-mm-sig@lists.linaro.org, linux-kselftest@vger.kernel.org,
	sdf@fomichev.me, razor@blackwall.org, daniel@iogearbox.net,
	almasrymina@google.com, matttbe@kernel.org, skhawaja@google.com,
	dw@davidwei.uk, Bobby Eshleman <bobbyeshleman@meta.com>
Subject: Re: [PATCH net-next v3 2/4] udmabuf: emit one sg entry per pinned folio
Date: Tue, 16 Jun 2026 09:04:46 +0200	[thread overview]
Message-ID: <86e401f4-911f-4515-adf0-3bedba2b3f7a@amd.com> (raw)
In-Reply-To: <20260615145757.0b2ddcf3@kernel.org>

On 6/15/26 23:57, Jakub Kicinski wrote:
> On Fri, 12 Jun 2026 09:25:58 -0700 Bobby Eshleman wrote:
>> dma_map_sgtable() does not always merge contiguous pages for us, so we
>> do this internally before exporting.
>>
>> Signed-off-by: Bobby Eshleman <bobbyeshleman@meta.com>
>> ---
>>  drivers/dma-buf/udmabuf.c 
> 
> This will need at the very least an ack from DMABUF maintainers,
> so it's a bit late to consider it for 7.2

Sorry for not replying earlier. I already nailed Bobby with questions on the why and what from the DMA-buf side and while I don't have time to in deep review the code the high level rational looks sane to me.

Feel free to add Acked-by: Christian König <christian.koenig@amd.com>

Regards,
Christian.

  reply	other threads:[~2026-06-16  7:05 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-12 16:25 [PATCH net-next v3 0/4] net: devmem: allow rx-buf-size > PAGE_SIZE per binding Bobby Eshleman
2026-06-12 16:25 ` [PATCH net-next v3 1/4] net: devmem: allow rx-buf-size > PAGE_SIZE per dmabuf binding Bobby Eshleman
2026-06-12 16:25 ` [PATCH net-next v3 2/4] udmabuf: emit one sg entry per pinned folio Bobby Eshleman
2026-06-15 21:57   ` Jakub Kicinski
2026-06-16  7:04     ` Christian König [this message]
2026-06-12 16:25 ` [PATCH net-next v3 3/4] selftests/net: ncdevmem: add -b option to set rx-buf-size on bind Bobby Eshleman
2026-06-13  2:03   ` Stanislav Fomichev
2026-06-12 16:26 ` [PATCH net-next v3 4/4] selftests/net: devmem.py: add check_rx_large_niov Bobby Eshleman
2026-06-13  2:03   ` Stanislav Fomichev

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