__of_prop_dup(9)

💖 __of_prop_dup — the Kernel API Manual, bestie edition 🎀

okay so welcome to the <lavender>Kernel API Manual</lavender> entry for __of_prop_dup(9) — yes the double underscore is load-bearing, we do not abbreviate her name 💅

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✨ NAME ✨

__of_prop_dup — copy a property, but like… dynamically 🦋

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🌸 SYNOPSIS 🌸

struct property * __of_prop_dup (const struct property *prop , gfp_t
       allocflags );

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🎀 ARGUMENTS 🎀

• prop — the property you wanna copy. your blorbo. the one getting duplicated 🫶
• allocflags — the allocation flags (typically pass GFP_KERNEL, that's the standard vibe ✨)

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🔥 DESCRIPTION 🔥

so the way this works is: it copies a property by dynamically allocating the memory for both the property structure and the property name & contents 💀 like, it's not doing a shallow little copy, it's allocating memory for real, no cap.

and here's the iconic part — the property's flags get the OF_DYNAMIC bit set ⭐ so we can tell the difference between dynamically allocated properties and the ones that are not. that's literally the whole point, iykyk.

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🌈 RETURN 🌈

it hands you back the newly allocated property — or NULL on out of memory error 😭 (fr fr, check for the NULL, bestie, please).

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👑 SEE ALSO 👑

kernel file ./drivers/of/dynamic.c — yes, that's the one, go look 👀

and the whole friend group:

• of_node_get(9)
• of_node_put(9)
• of_attach_node(9)
• of_detach_node(9)
• of_node_release(9)
• __of_node_dup(9)
• of_changeset_create_node(9)
• of_changeset_init(9)
• of_changeset_destroy(9)
• of_changeset_apply(9)
• of_changeset_revert(9)
• of_changeset_action(9)
• of_changeset_add_prop_string(9)
• of_changeset_add_prop_string_array(9)
• of_changeset_add_prop_u32_array(9)
• of_changeset_add_prop_bool(9)
• of_changeset_update_prop_string(9)

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that's the whole page, you ate it, you're a kernel dev now 🧚💜

so like, credit where credit's due: this one's from ./drivers/of, it's the October 2026 edition, and it says __of_prop_dup(9) at the bottom because that's just how manpages do 🍓 mwah, bye bestie 💖