pci_bar_index_is_valid(9)

🌸 NAME 🌸

okay so bestie, this is the manual page for pci_bar_index_is_valid(9) from the Kernel API Manual — and it's literally the tiny bouncer checking whether a BAR index is within valid range. no cap. 💅

✨ SYNOPSIS ✨

bool pci_bar_index_is_valid (int bar );

🎀 ARGUMENTS 🎀

• bar — BAR index. that's the whole argument, bestie. 🫶

🦋 DESCRIPTION 🦋

This function protects against overflowing the struct pci_dev.resource array. it's giving safety-rail energy, fr fr. 💖

⭐ RETURN ⭐

• true for valid index
• false otherwise

periodt. 💅

👑 SEE ALSO 👑

Kernel file ./drivers/pci/pci.h, plus these iconic references:

• PCI_FIND_NEXT_CAP(9)
• PCI_FIND_NEXT_EXT_CAP(9)
• pci_id_from_device(9)
• pci_match_one_id(9)
• pci_resource_num(9)
• pci_dev_set_io_state(9)
• struct aer_err_info(9)

cute sign-off time: source/version is ./drivers/pci, date is October 2026, and the manual name is pci_bar_index_is_valid(9) — slay, bye 💋✨