drivers/platform/cznic/turris-signing-key.c

File Facts

System

Linux kernel

Corpus path

drivers/platform/cznic/turris-signing-key.c

Extension

.c

Size

5259 bytes

Lines

194

Domain

Driver Families

Bucket

drivers/platform

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

• linux/device.h
• linux/err.h
• linux/key-type.h
• linux/key.h
• linux/keyctl.h
• linux/module.h
• linux/seq_file.h
• linux/string.h
• linux/types.h
• linux/turris-signing-key.h

Detected Declarations

• function keyctl
• function turris_signing_key_describe
• function turris_signing_key_read
• function turris_signing_key_asym_valid_params
• function turris_signing_key_asym_query
• function turris_signing_key_asym_eds_op
• function turris_signing_key_release
• function devm_turris_signing_key_create
• function turris_signing_key_init
• function turris_signing_key_exit
• module init turris_signing_key_init
• export devm_turris_signing_key_create

Annotated Snippet

module_init(turris_signing_key_init);

static void turris_signing_key_exit(void)
{
	key_put(turris_signing_keyring);
	unregister_key_type(&turris_signing_key_type);
}
module_exit(turris_signing_key_exit);

MODULE_AUTHOR("Marek Behun <kabel@kernel.org>");
MODULE_DESCRIPTION("CZ.NIC's Turris signing key helper");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/device.h`, `linux/err.h`, `linux/key-type.h`, `linux/key.h`, `linux/keyctl.h`, `linux/module.h`, `linux/seq_file.h`, `linux/string.h`.
• Detected declarations: `function keyctl`, `function turris_signing_key_describe`, `function turris_signing_key_read`, `function turris_signing_key_asym_valid_params`, `function turris_signing_key_asym_query`, `function turris_signing_key_asym_eds_op`, `function turris_signing_key_release`, `function devm_turris_signing_key_create`, `function turris_signing_key_init`, `function turris_signing_key_exit`.
• Atlas domain: Driver Families / drivers/platform.
• 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.