crypto/crc32.c
Source file repositories/reference/linux-study-clean/crypto/crc32.c
File Facts
- System
- Linux kernel
- Corpus path
crypto/crc32.c- Extension
.c- Size
- 2868 bytes
- Lines
- 130
- 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.hlinux/crc32.hcrypto/internal/hash.hlinux/init.hlinux/module.hlinux/string.hlinux/kernel.h
Detected Declarations
function crc32_cra_initfunction crc32_setkeyfunction crc32_initfunction crc32_updatefunction __crc32_finupfunction crc32_finupfunction crc32_finalfunction crc32_digestfunction crc32_mod_initfunction crc32_mod_finimodule init crc32_mod_init
Annotated Snippet
module_init(crc32_mod_init);
module_exit(crc32_mod_fini);
MODULE_AUTHOR("Alexander Boyko <alexander_boyko@xyratex.com>");
MODULE_DESCRIPTION("CRC32 calculations wrapper for lib/crc32");
MODULE_LICENSE("GPL");
MODULE_ALIAS_CRYPTO("crc32");Annotation
- Immediate include surface: `linux/unaligned.h`, `linux/crc32.h`, `crypto/internal/hash.h`, `linux/init.h`, `linux/module.h`, `linux/string.h`, `linux/kernel.h`.
- Detected declarations: `function crc32_cra_init`, `function crc32_setkey`, `function crc32_init`, `function crc32_update`, `function __crc32_finup`, `function crc32_finup`, `function crc32_final`, `function crc32_digest`, `function crc32_mod_init`, `function crc32_mod_fini`.
- 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.