epf_ntb_unbind(9)

💅 epf_ntb_unbind — from the Kernel API Manual (section 9, kernel funcs, iykyk)

okay so bestie, welcome to epf_ntb_unbind(9), the kernel API page that's literally the cleanup era of the NTB saga. this is the one where we undo everything ✨

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🌸 NAME 🌸

epf_ntb_unbind — it's the cleanup. the undoing. the "we're so back to zero" moment that reverses the initialization from epf_ntb_bind(). 🫶

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✨ SYNOPSIS ✨

void epf_ntb_unbind (struct pci_epf *epf );

that's it. one arg, no return value (it's a void, she gives nothing back, iconic), and she takes a struct pci_epf *. slay 💅

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🎀 ARGUMENTS 🎀

• epf — the NTB endpoint function device. that's the thing you're unbinding. that's your main character. 👑

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💖 DESCRIPTION 💖

okay so real talk: this function does the cleanup of the initialization from epf_ntb_bind(). like, epf_ntb_bind() set everything up, and this is the one that puts it all back. the reverse-timeline episode. the "not me undoing all my own work" moment 😭

no cap, that's the whole job. it cleans up.

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🦋 SEE ALSO 🦋

first, the source of truth, the file where all this lore lives: Kernel file ./drivers/pci/endpoint/functions/pci-epf-vntb.c — go read it, it's giving lore drop 📖

and now the whole friend group, in order, no one gets left out:

• epf_ntb_link_up(9)
• epf_ntb_configure_mw(9)
• epf_ntb_teardown_mw(9)
• epf_ntb_cmd_handler(9)
• epf_ntb_config_sspad_bar_clear(9)
• epf_ntb_config_sspad_bar_set(9)
• epf_ntb_config_spad_bar_free(9)
• epf_ntb_config_spad_bar_alloc(9)
• epf_ntb_configure_interrupt(9)
• epf_ntb_db_bar_init(9)
• epf_ntb_db_bar_clear(9)
• epf_ntb_mw_bar_init(9)
• epf_ntb_mw_bar_clear(9)
• epf_ntb_is_bar_used(9)
• epf_ntb_find_bar(9)
• epf_ntb_init_epc_bar(9)
• epf_ntb_epc_init(9)
• epf_ntb_epc_cleanup(9)
• epf_ntb_add_cfs(9)
• epf_ntb_bind(9) — the one this whole page is the undo button for 🔁
• epf_ntb_probe(9)

like, that's the entire group chat. mwah 💋

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and that's the page!! sign-off time: this one lives in ./drivers/pci/endpoint/functions, and it's dated October 2026. periodt. 💜🎀