crypto/crc32c.c

File Facts

System

Linux kernel

Corpus path

crypto/crc32c.c

Extension

.c

Size

3585 bytes

Lines

150

Domain

Kernel Services

Bucket

crypto

Inferred role

Kernel Services: exported/initcall integration point

Status

integration implementation candidate

Why This File Exists

Shared kernel service surface used by multiple subsystems, including helpers, cryptography, virtualization support, and async I/O infrastructure.

• Shared kernel service surface used by multiple subsystems, including helpers, cryptography, virtualization support, and async I/O infrastructure.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/unaligned.h
• crypto/internal/hash.h
• linux/init.h
• linux/module.h
• linux/string.h
• linux/kernel.h
• linux/crc32.h

Detected Declarations

• struct chksum_ctx
• struct chksum_desc_ctx
• function chksum_init
• function chksum_setkey
• function chksum_update
• function chksum_final
• function __chksum_finup
• function chksum_finup
• function chksum_digest
• function crc32c_cra_init
• function crc32c_mod_init
• function crc32c_mod_fini
• module init crc32c_mod_init

Annotated Snippet

module_init(crc32c_mod_init);
module_exit(crc32c_mod_fini);

MODULE_AUTHOR("Clay Haapala <chaapala@cisco.com>");
MODULE_DESCRIPTION("CRC32c (Castagnoli) calculations wrapper for lib/crc32c");
MODULE_LICENSE("GPL");
MODULE_ALIAS_CRYPTO("crc32c");

Annotation

• Immediate include surface: `linux/unaligned.h`, `crypto/internal/hash.h`, `linux/init.h`, `linux/module.h`, `linux/string.h`, `linux/kernel.h`, `linux/crc32.h`.
• Detected declarations: `struct chksum_ctx`, `struct chksum_desc_ctx`, `function chksum_init`, `function chksum_setkey`, `function chksum_update`, `function chksum_final`, `function __chksum_finup`, `function chksum_finup`, `function chksum_digest`, `function crc32c_cra_init`.
• Atlas domain: Kernel Services / crypto.
• Implementation status: integration 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.