include/net/dropreason.h

File Facts

System

Linux kernel

Corpus path

include/net/dropreason.h

Extension

.h

Size

1347 bytes

Lines

50

Domain

Networking Core

Bucket

Sockets, Protocols, Packet Path, And Network Policy

Inferred role

Networking Core: implementation source

Status

source implementation candidate

Why This File Exists

Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.

• Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• net/dropreason-core.h

Detected Declarations

• struct drop_reason_list
• enum skb_drop_reason_subsys

Annotated Snippet

struct drop_reason_list {
	const char * const *reasons;
	size_t n_reasons;
};

/* Note: due to dynamic registrations, access must be under RCU */
extern const struct drop_reason_list __rcu *
drop_reasons_by_subsys[SKB_DROP_REASON_SUBSYS_NUM];

void drop_reasons_register_subsys(enum skb_drop_reason_subsys subsys,
				  const struct drop_reason_list *list);
void drop_reasons_unregister_subsys(enum skb_drop_reason_subsys subsys);

#endif

Annotation

• Immediate include surface: `net/dropreason-core.h`.
• Detected declarations: `struct drop_reason_list`, `enum skb_drop_reason_subsys`.
• Atlas domain: Networking Core / Sockets, Protocols, Packet Path, And Network Policy.
• 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.