linux-kernel - Re: [PATCH 03/11] ARM: exynos: Simplify with scoped for each OF child loop

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Message-ID: <f49d18b4-f7b1-4a48-8132-6c081cfb78d8@oss.qualcomm.com>
Date: Fri, 9 Jan 2026 16:59:48 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>
To: Jonathan Cameron <jonathan.cameron@...wei.com>
Cc: 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>, 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
Subject: Re: [PATCH 03/11] ARM: exynos: Simplify with scoped for each OF child
 loop

On 06/01/2026 11:11, Jonathan Cameron wrote:
>> -	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;
> No idea how common this pattern is, but maybe worth
> 	for_each_compatible_available_node_scoped() ?
> Bit of a pain as you'd need a of_find_compatible_available_node() helper.
> So I'll let you assess if there are enough instances of this to make it worthwhile.


I think there are only like two or three instances, so not really worth
the effort.

Best regards,
Krzysztof