is_downstream_to_pci_bridge(9)

💖 NAME 💖

okay bestie, this is the is_downstream_to_pci_bridge(9) page from the Kernel API Manual ✨ and it's literally a vibe check for hardware: it tests if a device belongs to the PCI sub-hierarchy of a candidate PCI-PCI bridge. no cap, that's the whole assignment 🎀

🌸 SYNOPSIS 🌸

bool is_downstream_to_pci_bridge (struct device *dev , struct device
       *bridge );

🦋 ARGUMENTS 🦋

• dev — candidate PCI device belonging to bridge PCI sub-hierarchy. that's the little device we're checking on 👀
• bridge — the candidate PCI-PCI bridge. the main character bridge in this situation 💅

👑 RETURN 👑

true if dev belongs to bridge PCI sub-hierarchy, else false. it's giving yes/no, periodt 💅✨

🌈 SEE ALSO 🌈

• Kernel file ./drivers/iommu/intel/iommu.c
• device_rmrr_is_relaxable(9)

iykyk, go peek at the source when you wanna go deeper 🫶

mwah 💋 that's the whole page, bestie. source/version vibes: it came from ./drivers/iommu/intel, dated October 2026, and the page itself is is_downstream_to_pci_bridge(9). slay 🎀✨