drivers/crypto/padlock-sha.c

File Facts

System

Linux kernel

Corpus path

drivers/crypto/padlock-sha.c

Extension

.c

Size

10759 bytes

Lines

396

Domain

Driver Families

Bucket

drivers/crypto

Inferred role

Driver Families: exported/initcall integration point

Status

integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• 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

• asm/cpu_device_id.h
• crypto/internal/hash.h
• crypto/padlock.h
• crypto/sha1.h
• crypto/sha2.h
• linux/cpufeature.h
• linux/err.h
• linux/kernel.h
• linux/module.h

Detected Declarations

• struct padlock_sha_ctx
• function padlock_sha1_init
• function padlock_sha256_init
• function padlock_sha_update
• function padlock_sha_export
• function padlock_sha_import
• function padlock_output_block
• function padlock_sha_finup
• function padlock_sha1_finup
• function padlock_sha256_finup
• function padlock_init_tfm
• function padlock_exit_tfm
• function padlock_sha1_update_nano
• function padlock_sha256_update_nano
• function padlock_init
• function padlock_fini
• module init padlock_init

Annotated Snippet

module_init(padlock_init);
module_exit(padlock_fini);

MODULE_DESCRIPTION("VIA PadLock SHA1/SHA256 algorithms support.");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Michal Ludvig");

MODULE_ALIAS_CRYPTO("sha1-all");
MODULE_ALIAS_CRYPTO("sha256-all");
MODULE_ALIAS_CRYPTO("sha1-padlock");
MODULE_ALIAS_CRYPTO("sha256-padlock");

Annotation

• Immediate include surface: `asm/cpu_device_id.h`, `crypto/internal/hash.h`, `crypto/padlock.h`, `crypto/sha1.h`, `crypto/sha2.h`, `linux/cpufeature.h`, `linux/err.h`, `linux/kernel.h`.
• Detected declarations: `struct padlock_sha_ctx`, `function padlock_sha1_init`, `function padlock_sha256_init`, `function padlock_sha_update`, `function padlock_sha_export`, `function padlock_sha_import`, `function padlock_output_block`, `function padlock_sha_finup`, `function padlock_sha1_finup`, `function padlock_sha256_finup`.
• Atlas domain: Driver Families / drivers/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.