From: Jakub Kicinski <kuba@kernel.org>
To: Vivian Wang <wangruikang@iscas.ac.cn>
Cc: Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Paolo Abeni <pabeni@redhat.com>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>, Yixun Lan <dlan@gentoo.org>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Alexandre Ghiti <alex@ghiti.fr>,
Richard Cochran <richardcochran@gmail.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
Russell King <linux@armlinux.org.uk>, Vivian Wang <uwu@dram.page>,
netdev@vger.kernel.org, devicetree@vger.kernel.org,
linux-riscv@lists.infradead.org, spacemit@lists.linux.dev,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next 2/4] net: spacemit: Add K1 Ethernet MAC
Date: Fri, 13 Jun 2025 06:31:45 -0700 [thread overview]
Message-ID: <20250613063145.62871999@kernel.org> (raw)
In-Reply-To: <20250613-net-k1-emac-v1-2-cc6f9e510667@iscas.ac.cn>
On Fri, 13 Jun 2025 10:15:08 +0800 Vivian Wang wrote:
> + rx_ring->desc_addr = dma_alloc_coherent(&pdev->dev, rx_ring->total_size,
> + &rx_ring->desc_dma_addr,
> + GFP_KERNEL);
> + if (!rx_ring->desc_addr) {
> + kfree(rx_ring->rx_desc_buf);
> + return -ENOMEM;
> + }
> +
> + memset(rx_ring->desc_addr, 0, rx_ring->total_size);
dma_alloc_coherent() already clears memory.
--
pw-bot: cr
_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
WARNING: multiple messages have this Message-ID (diff)
From: Jakub Kicinski <kuba@kernel.org>
To: Vivian Wang <wangruikang@iscas.ac.cn>
Cc: Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Paolo Abeni <pabeni@redhat.com>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>, Yixun Lan <dlan@gentoo.org>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Alexandre Ghiti <alex@ghiti.fr>,
Richard Cochran <richardcochran@gmail.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
Russell King <linux@armlinux.org.uk>, Vivian Wang <uwu@dram.page>,
netdev@vger.kernel.org, devicetree@vger.kernel.org,
linux-riscv@lists.infradead.org, spacemit@lists.linux.dev,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next 2/4] net: spacemit: Add K1 Ethernet MAC
Date: Fri, 13 Jun 2025 06:31:45 -0700 [thread overview]
Message-ID: <20250613063145.62871999@kernel.org> (raw)
In-Reply-To: <20250613-net-k1-emac-v1-2-cc6f9e510667@iscas.ac.cn>
On Fri, 13 Jun 2025 10:15:08 +0800 Vivian Wang wrote:
> + rx_ring->desc_addr = dma_alloc_coherent(&pdev->dev, rx_ring->total_size,
> + &rx_ring->desc_dma_addr,
> + GFP_KERNEL);
> + if (!rx_ring->desc_addr) {
> + kfree(rx_ring->rx_desc_buf);
> + return -ENOMEM;
> + }
> +
> + memset(rx_ring->desc_addr, 0, rx_ring->total_size);
dma_alloc_coherent() already clears memory.
--
pw-bot: cr
next prev parent reply other threads:[~2025-06-13 13:31 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-13 2:15 [PATCH net-next 0/4] Add Ethernet MAC support for SpacemiT K1 Vivian Wang
2025-06-13 2:15 ` Vivian Wang
2025-06-13 2:15 ` [PATCH net-next 1/4] dt-bindings: net: Add " Vivian Wang
2025-06-13 2:15 ` Vivian Wang
2025-06-13 14:43 ` Conor Dooley
2025-06-13 14:43 ` Conor Dooley
2025-06-13 2:15 ` [PATCH net-next 2/4] net: spacemit: Add K1 Ethernet MAC Vivian Wang
2025-06-13 2:15 ` Vivian Wang
2025-06-13 13:31 ` Jakub Kicinski [this message]
2025-06-13 13:31 ` Jakub Kicinski
2025-06-16 3:02 ` Vivian Wang
2025-06-16 3:02 ` Vivian Wang
2025-06-13 14:32 ` Andrew Lunn
2025-06-13 14:32 ` Andrew Lunn
2025-06-16 3:04 ` Vivian Wang
2025-06-16 3:04 ` Vivian Wang
2025-06-13 15:04 ` Vadim Fedorenko
2025-06-13 15:04 ` Vadim Fedorenko
2025-06-16 3:04 ` Vivian Wang
2025-06-16 3:04 ` Vivian Wang
2025-06-16 6:33 ` Russell King (Oracle)
2025-06-16 6:33 ` Russell King (Oracle)
2025-06-16 6:41 ` Vivian Wang
2025-06-16 6:41 ` Vivian Wang
2025-06-13 2:15 ` [PATCH net-next 3/4] riscv: dts: spacemit: Add Ethernet support for K1 Vivian Wang
2025-06-13 2:15 ` Vivian Wang
2025-06-13 2:15 ` [PATCH net-next 4/4] riscv: dts: spacemit: Add Ethernet support for BPI-F3 Vivian Wang
2025-06-13 2:15 ` Vivian Wang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20250613063145.62871999@kernel.org \
--to=kuba@kernel.org \
--cc=alex@ghiti.fr \
--cc=andrew+netdev@lunn.ch \
--cc=aou@eecs.berkeley.edu \
--cc=conor+dt@kernel.org \
--cc=davem@davemloft.net \
--cc=devicetree@vger.kernel.org \
--cc=dlan@gentoo.org \
--cc=edumazet@google.com \
--cc=krzk+dt@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-riscv@lists.infradead.org \
--cc=linux@armlinux.org.uk \
--cc=netdev@vger.kernel.org \
--cc=p.zabel@pengutronix.de \
--cc=pabeni@redhat.com \
--cc=palmer@dabbelt.com \
--cc=paul.walmsley@sifive.com \
--cc=richardcochran@gmail.com \
--cc=robh@kernel.org \
--cc=spacemit@lists.linux.dev \
--cc=uwu@dram.page \
--cc=wangruikang@iscas.ac.cn \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.