build_changeset_next_level(9)

💖 build_changeset_next_level(9) 💖

okay so bestie, this one is from the Kernel API Manual ✨ and it's literally build_changeset_next_level(9) — the function that adds a level of overlay changeset. no cap 🫶

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🌸 NAME 🌸

build_changeset_next_level — add level of overlay changeset 💅

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✨ SYNOPSIS ✨

int build_changeset_next_level (struct overlay_changeset *ovcs , struct
target *target , const struct device_node *overlay_node );

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🎀 ARGUMENTS 🎀

• ovcs — overlay changeset, the main character here 💖
• target — where to place overlay_node in live tree 🌳
• overlay_node — node from within an overlay device tree fragment 🦋

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🧚 DESCRIPTION 🧚

Add the properties (if any) and nodes (if any) from overlay_node to the ovcs->cset changeset. If an added node has child nodes, they will be added recursively — yes, recursively, bestie 🔁✨.

Do not allow the symbols node to have any children. That's the rule 🚫👑

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⭐ RETURN ⭐

• 0 — on success, slay ✨
• -ENOMEM — if memory allocation failure 😭
• -EINVAL — if invalid overlay_node 💀

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👀 SEE ALSO 👀

Kernel file ./drivers/of/overlay.c — and these iconic references:

• struct target(9)
• struct fragment(9)
• struct overlay_changeset(9)
• of_overlay_notifier_register(9)
• of_overlay_notifier_unregister(9)
• add_changeset_property(9)
• add_changeset_node(9)
• changeset_dup_entry_check(9)
• build_changeset(9)
• init_overlay_changeset(9)
• of_overlay_fdt_apply(9)
• of_overlay_remove(9)
• of_overlay_remove_all(9)

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source/version ./drivers/of 🌸 date October 2026 🎀 and it's build_changeset_next_level(9) — byeee bestie 💋✨