linux-kernel - [PATCH v3 03/12] ARM: exynos: Simplify with scoped for each OF child loop

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Message-Id: <20260109-of-for-each-compatible-scoped-v3-3-c22fa2c0749a@oss.qualcomm.com>
Date: Fri, 09 Jan 2026 17:57:47 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>
To: Miguel Ojeda <ojeda@...nel.org>, Rob Herring <robh@...nel.org>,
        Saravana Kannan <saravanak@...gle.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <nick.desaulniers+lkml@...il.com>,
        Bill Wendling <morbo@...gle.com>,
        Justin Stitt <justinstitt@...gle.com>,
        Russell King <linux@...linux.org.uk>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Claudiu Beznea <claudiu.beznea@...on.dev>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Madhavan Srinivasan <maddy@...ux.ibm.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin <npiggin@...il.com>,
        "Christophe Leroy (CS GROUP)" <chleroy@...nel.org>,
        Nipun Gupta <nipun.gupta@....com>,
        Nikhil Agarwal <nikhil.agarwal@....com>,
        Abel Vesa <abelvesa@...nel.org>, Peng Fan <peng.fan@....com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>, Vinod Koul <vkoul@...nel.org>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        llvm@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-clk@...r.kernel.org, imx@...ts.linux.dev,
        dmaengine@...r.kernel.org, linux-media@...r.kernel.org,
        linux-pm@...r.kernel.org,
        Jonathan Cameron <jonathan.cameron@...wei.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>
Subject: [PATCH v3 03/12] ARM: exynos: Simplify with scoped for each OF
 child loop

Use scoped for-each loop when iterating over device nodes to make code a
bit simpler.

Reviewed-by: Jonathan Cameron <jonathan.cameron@...wei.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>
---

Depends on the first patch.
---
 arch/arm/mach-exynos/exynos.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c
index 2e8099479ffa..18695076c34e 100644
--- a/arch/arm/mach-exynos/exynos.c
+++ b/arch/arm/mach-exynos/exynos.c
@@ -47,9 +47,7 @@ unsigned int exynos_rev(void)
 
 void __init exynos_sysram_init(void)
 {
-	struct device_node *node;
-
-	for_each_compatible_node(node, NULL, "samsung,exynos4210-sysram") {
+	for_each_compatible_node_scoped(node, NULL, "samsung,exynos4210-sysram") {
 		struct resource res;
 		if (!of_device_is_available(node))
 			continue;
@@ -57,15 +55,13 @@ void __init exynos_sysram_init(void)
 		of_address_to_resource(node, 0, &res);
 		sysram_base_addr = ioremap(res.start, resource_size(&res));
 		sysram_base_phys = res.start;
-		of_node_put(node);
 		break;
 	}
 
-	for_each_compatible_node(node, NULL, "samsung,exynos4210-sysram-ns") {
+	for_each_compatible_node_scoped(node, NULL, "samsung,exynos4210-sysram-ns") {
 		if (!of_device_is_available(node))
 			continue;
 		sysram_ns_base_addr = of_iomap(node, 0);
-		of_node_put(node);
 		break;
 	}
 }

-- 
2.51.0