do_pre_bridg...source_split(9)

🌸 do_pre_bridge_resource_split(9) — like, the actual manual page, bestie 🌸

okay so this is a page from the Kernel API Manual, and it's about do_pre_bridge_resource_split — yes that name is a mouthful, yes we're gonna get through it together, hold my iced coffee 🧋

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✨ NAME ✨

do_pre_bridge_resource_split — literally its whole job is to find you a node of resources that are unused. that's it. that's the vibe check 👑

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🦋 SYNOPSIS 🦋

struct pci_resource * do_pre_bridge_resource_split (struct pci_resource
**head , struct pci_resource **orig_head , u32 alignment );

copy it exactly, don't @ me, the compiler is very particular about this one 💅

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🎀 ARGUMENTS 🎀

• head — the new list head. like, the fresh new list you're building, main character energy ✨
• orig_head — the original list head. the before picture. we keep it around, obviously 🫶
• alignment — max node size (?). and yes the (?) is doing a lot of heavy lifting here — the manual genuinely writes it with a question mark, so we're keeping it with a question mark 😭 ngl that's iconic of it

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🌈 SEE ALSO 🌈

so much family, so much lore. all of these live in the Kernel file ./drivers/pci/hotplug/cpqphp_ctrl.c:

• cpqhp_find_slot(9)
• sort_by_size(9)
• sort_by_max_size(9)
• do_bridge_resource_split(9)
• get_io_resource(9)
• get_max_resource(9)
• get_resource(9)
• cpqhp_resource_sort_and_combine(9)
• cpqhp_slot_create(9)
• slot_remove(9)
• bridge_slot_remove(9)
• cpqhp_slot_find(9)
• set_controller_speed(9)
• board_replaced(9)
• board_added(9)
• remove_board(9)
• cpqhp_pushbutton_thread(9)
• switch_leds(9)
• cpqhp_hardware_test(9)
• configure_new_device(9)
• configure_new_function(9)

that's twenty-one whole cross-references, bestie. twenty-one. we ate and left no crumbs 🍓

fr fr: this split is the pre one — do_bridge_resource_split(9) is a whole different girl, don't confuse them 🙈

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💖 that's the whole page!! sourced straight from ./drivers/pci/hotplug, dated October 2026, and every single bit of it is still do_pre_bridge_resource_split(9) — same girl, cuter font. bye bestie, go sort some resources 🌸✨💅