drivers/pci/hotplug/pciehp_pci.c

File Facts

System

Linux kernel

Corpus path

drivers/pci/hotplug/pciehp_pci.c

Extension

.c

Size

3906 bytes

Lines

142

Domain

Representative Device Path

Bucket

PCIe NVMe Storage Path

Inferred role

Representative Device Path: implementation source

Status

source implementation candidate

Why This File Exists

Part of the selected hardware vertical slice: PCI discovery, driver binding, NVMe queues, block requests, DMA, interrupts, and completion.

• Part of the selected hardware vertical slice: PCI discovery, driver binding, NVMe queues, block requests, DMA, interrupts, and completion.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/kernel.h
• linux/types.h
• linux/pci.h
• ../pci.h
• pciehp.h

Detected Declarations

• function Copyright
• function pciehp_unconfigure_device

Annotated Snippet

if (presence) {
			pci_read_config_word(dev, PCI_COMMAND, &command);
			command &= ~(PCI_COMMAND_MASTER | PCI_COMMAND_SERR);
			command |= PCI_COMMAND_INTX_DISABLE;
			pci_write_config_word(dev, PCI_COMMAND, command);
		}
		pci_dev_put(dev);
	}

	pci_unlock_rescan_remove();
}

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/types.h`, `linux/pci.h`, `../pci.h`, `pciehp.h`.
• Detected declarations: `function Copyright`, `function pciehp_unconfigure_device`.
• Atlas domain: Representative Device Path / PCIe NVMe Storage Path.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.