__drm_dp_mst_state_iter_get(9)

✨ __drm_dp_mst_state_iter_get(9) ✨

okay so real talk bestie — welcome to the Kernel API Manual, and today's main character is __drm_dp_mst_state_iter_get, which is literally a private atomic state iterator function for macro-internal use. yeah. that's the whole vibe. it's giving backstage-pass energy, not front-of-house 💅

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🎀 NAME 🎀

__drm_dp_mst_state_iter_get — the private atomic state iterator function for macro-internal use. yes, the private one. it does not want to meet your friends, it does not want to be called by you, it is booked and busy 🫶

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⭐ SYNOPSIS ⭐

bool __drm_dp_mst_state_iter_get (struct drm_atomic_commit *state ,
struct drm_dp_mst_topology_mgr **mgr , struct drm_dp_mst_topology_state
**old_state , struct drm_dp_mst_topology_state **new_state , int i );

ate, no crumbs. it returns a bool and takes five lil arguments. slay 💖

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🌸 ARGUMENTS 🌸

• state — a struct drm_atomic_commit pointer. that's the whole thing, that's the argument, the state itself, iconic 👑
• mgr — pointer to the struct drm_dp_mst_topology_mgr iteration cursor. it's the little cursor that knows where you are in the walk-through, iykyk 🦋
• old_state — optional pointer to the old struct drm_dp_mst_topology_state iteration cursor. optional!! she can be NULL, she can be present, she contains multitudes ✨
• new_state — optional pointer to the new struct drm_dp_mst_topology_state iteration cursor. also optional, also unbothered, also just vibing 🌈
• i — the int iteration cursor, for macro-internal use. that's it. that's the description. she's a number, she counts, we love her 🍓

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💜 DESCRIPTION 💜

so this one is used by for_each_oldnew_mst_mgr_in_state, for_each_old_mst_mgr_in_state, and for_each_new_mst_mgr_in_state. those three macros are the ones who actually get to call her.

⚠️ ok important bestie note: Don't call this directly. like, genuinely. this is macro-internal machinery. the macros are the ones holding the aux cord, you are not 🔥

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🧚 RETURN 🧚

it hands back true if the current struct drm_private_obj is a struct drm_dp_mst_topology_mgr — and false otherwise. a simple queen. a yes-or-no icon. no cap 💀

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🎀 SEE ALSO 🎀

• the kernel file ./include/drm/display/drm_dp_mst_helper.h
• struct drm_dp_mst_port(9)
• struct drm_dp_mst_branch(9)
• struct drm_dp_mst_atomic_payload(9)
• struct drm_dp_mst_topology_state(9)
• struct drm_dp_mst_topology_mgr(9)
• enum drm_dp_mst_mode(9)
• for_each_oldnew_mst_mgr_in_state(9)
• for_each_old_mst_mgr_in_state(9)
• for_each_new_mst_mgr_in_state(9)

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and that's the page!! 🫶 this lil icon lives in ./include/drm/display and the version/date stamp on her is October 2026 — so bestie, if you're reading this in some other month, no you're not 😭💖 mwah, go read the macros, and please. do not call her directly. periodt 🌟