pci_hp_unignore_link_change(9)
π pci_hp_unignore_link_change(9) β the Kernel API Manual, bestie edition π
okay so picture this: you're deep in the Kernel API Manual, section 9, and you've got this little function called pci_hp_unignore_link_change β¨ it's the partner-in-crime function, the "and we're back" moment. Let's get into it π«Ά
β¨ NAME β¨
pci_hp_unignore_link_change β wrap up the code section that was causing those spurious link changes π¦ (yes, "spurious," she's dramatic but she's right)
πΈ SYNOPSIS πΈ
void pci_hp_unignore_link_change (struct pci_dev *pdev );
like, that's the whole signature. void return, one arg, she's lowkey simple π
π ARGUMENTS π
pdevβ the PCI hotplug bridge ποΈ that's your main character right there, the one everything's happening around
π DESCRIPTION π
So here's the vibe: this function marks the end of a code section that's been causing spurious link changes on the Secondary Bus of pdev. Basically you were in "ignore mode," and now you're closing that chapter πβ¨
π Important, no cap: this one must be paired with pci_hp_ignore_link_change. They're a set. You don't open with one and leave the other hanging β that's not the vibe, and the kernel will not be slaying about it. Periodt.
So the flow is: pci_hp_ignore_link_change opens it, pci_hp_unignore_link_change closes it, and everything in between is your spurious-link-change safe zone π§π¦
π₯ SEE ALSO π₯
Kernel file ./drivers/pci/hotplug/pci_hotplug_core.c β that's where the magic lives, iykyk π
__pci_hp_register(9)__pci_hp_initialize(9)pci_hp_add(9)pci_hp_deregister(9)pci_hp_del(9)pci_hp_destroy(9)pci_hp_ignore_link_change(9)β the other half of the duo πpci_hp_spurious_link_change(9)
okay that's the whole page, you ate that π β¨
cute little sign-off: this one's filed under ./drivers/pci/hotplug, stamped October 2026, and it's the pci_hp_unignore_link_change(9) page β go forth and un-ignore those link changes, bestie ππ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms