From: Peng Fan <peng.fan@oss.nxp.com>
To: Frank.Li@oss.nxp.com
Cc: Bjorn Andersson <andersson@kernel.org>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>, Peng Fan <peng.fan@nxp.com>,
linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org,
imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>,
Frank Li <Frank.Li@nxp.com>
Subject: Re: [PATCH v4 2/4] remoteproc: imx_rpoc: use memory-region-names to avoid hidden ABI
Date: Fri, 9 Oct 2026 11:17:59 +0800 [thread overview]
Message-ID: <ashc52brq031Tr8c@shlinux89> (raw)
In-Reply-To: <20260917-memory-region-name-v4-2-260755920ebf@nxp.com>
On Thu, Sep 17, 2026 at 02:19:43PM -0400, Frank.Li@oss.nxp.com wrote:
>From: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
>
>The driver currently derives the memory region type from the referenced
>memory node name, creating a hidden DT ABI. Since memory node names are
>not constrained by the binding, incorrect names can silently pass DT
>validation, as seen in examples using "vdevbuffer" instead of
>"vdev0buffer" ([1] and [2]).
>
>Parse memory-region-names to identify the expected memory regions and avoid
>relying on memory node names as ABI.
>
>Link: https://lore.kernel.org/imx/a3602ef8-2b77-4cc3-adef-2c4cba08a5d9@nabladev.com/ [1]
>Link: https://lore.kernel.org/imx/alexXTYQHUs76J7v@SMW015318/T/#mb9dc709ff3adc24d9db6d30c973f37b580f6f1f9 [2]
>
>Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
>Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
next prev parent reply other threads:[~2026-10-09 3:13 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-17 18:19 [PATCH v4 0/4] remoteproc: imx_rpoc: use memory-region-names to avoid hidden ABI Frank.Li
2026-09-17 18:19 ` [PATCH v4 1/4] dt-bindings: remoteproc: imx_rproc: document " Frank.Li
2026-09-17 18:28 ` sashiko-bot
2026-10-09 3:16 ` Peng Fan
2026-09-17 18:19 ` [PATCH v4 2/4] remoteproc: imx_rpoc: use " Frank.Li
2026-10-09 3:17 ` Peng Fan [this message]
2026-09-17 18:19 ` [PATCH v4 3/4] arm64: dts: freescale: imx95-15x15-frdm: remove some rmem regions Frank.Li
2026-09-17 18:26 ` sashiko-bot
2026-10-09 3:19 ` Peng Fan
2026-09-17 18:19 ` [PATCH v4 4/4] arm64: dts: freescale: add DT overlay for MX95-15x15-FRDM RPMSG usage Frank.Li
2026-10-09 3:21 ` Peng Fan
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