linux-kernel - [PATCH v1] riscv: dts: renesas: clean up dtbs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20230712-squealer-walmart-9587342ddec1@wendy>
Date:   Wed, 12 Jul 2023 09:14:44 +0100
From:   Conor Dooley <conor.dooley@...rochip.com>
To:     <geert+renesas@...der.be>
CC:     <conor@...nel.org>, <conor.dooley@...rochip.com>,
        Magnus Damm <magnus.damm@...il.com>,
        Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@...renesas.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        <linux-renesas-soc@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-riscv@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v1] riscv: dts: renesas: clean up dtbs_check W=1 warning due to empty phy node

dtbs_check w/ W=1 complains:
Warning (unit_address_vs_reg): /soc/ethernet@...20000/ethernet-phy@7: node has a unit name, but no reg or ranges property
Warning (avoid_unnecessary_addr_size): /soc/ethernet@...20000: unnecessary #address-cells/#size-cells without "ranges" or child "reg" property

The ethernet@...20000 node is guarded by an `#if (!SW_ET0_EN_N)` in
rzg2ul-smarc-som.dtsi, where the phy child node is added. In
rzfive-smarc-som.dtsi, the ethernet node is marked disabled & the
interrupt properties are deleted from the phy child node. As a result,
the produced dts looks like:
	ethernet@...20000 {
		compatible = "renesas,r9a07g043-gbeth\0renesas,rzg2l-gbeth";
		/* snip */
		#address-cells = <0x01>;
		#size-cells = <0x00>;
		status = "disabled";

		ethernet-phy@7 {
		};
	};

Adding a corresponding `#if (!SW_ET0_EN_N)` around the node in
rzfive-smarc-som.dtsi avoids the complaint, as the empty child node is
not added:
	ethernet@...20000 {
		compatible = "renesas,r9a07g043-gbeth\0renesas,rzg2l-gbeth";
		/* snip */
		#address-cells = <0x01>;
		#size-cells = <0x00>;
		status = "disabled";
	};

Signed-off-by: Conor Dooley <conor.dooley@...rochip.com>
---
CC: Geert Uytterhoeven <geert+renesas@...der.be>
CC: Magnus Damm <magnus.damm@...il.com>
CC: Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@...renesas.com>
CC: Rob Herring <robh+dt@...nel.org>
CC: Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
CC: Conor Dooley <conor+dt@...nel.org>
CC: linux-renesas-soc@...r.kernel.org
CC: devicetree@...r.kernel.org
CC: linux-riscv@...ts.infradead.org
CC: linux-kernel@...r.kernel.org
---
 arch/riscv/boot/dts/renesas/rzfive-smarc-som.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/riscv/boot/dts/renesas/rzfive-smarc-som.dtsi b/arch/riscv/boot/dts/renesas/rzfive-smarc-som.dtsi
index d6f18754eb5d..c62debc7ca7e 100644
--- a/arch/riscv/boot/dts/renesas/rzfive-smarc-som.dtsi
+++ b/arch/riscv/boot/dts/renesas/rzfive-smarc-som.dtsi
@@ -22,6 +22,7 @@ &dmac {
 	status = "disabled";
 };
 
+#if (!SW_ET0_EN_N)
 &eth0 {
 	status = "disabled";
 
@@ -30,6 +31,7 @@ phy0: ethernet-phy@7 {
 		/delete-property/ interrupts;
 	};
 };
+#endif
 
 &eth1 {
 	status = "disabled";
-- 
2.40.1