drivers/net/ppp/bsd_comp.c

File Facts

System

Linux kernel

Corpus path

drivers/net/ppp/bsd_comp.c

Extension

.c

Size

29619 bytes

Lines

1171

Domain

Driver Families

Bucket

drivers/net

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.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/module.h
• linux/init.h
• linux/slab.h
• linux/vmalloc.h
• linux/string.h
• linux/ppp_defs.h
• linux/ppp-comp.h
• asm/byteorder.h

Detected Declarations

• struct bsd_dict
• struct bsd_db
• function bsd_clear
• function bsd_comp_stats
• function bsd_reset
• function bsd_free
• function a
• function bsd_init
• function bsd_comp_init
• function bsd_decomp_init
• function bsd_compress
• function bsd_incomp
• function bsd_decompress
• function bsdcomp_init
• function bsdcomp_cleanup
• module init bsdcomp_init

Annotated Snippet

module_init(bsdcomp_init);
module_exit(bsdcomp_cleanup);
MODULE_DESCRIPTION("PPP BSD-Compress compression module");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_ALIAS("ppp-compress-" __stringify(CI_BSD_COMPRESS));

Annotation

• Immediate include surface: `linux/module.h`, `linux/init.h`, `linux/slab.h`, `linux/vmalloc.h`, `linux/string.h`, `linux/ppp_defs.h`, `linux/ppp-comp.h`, `asm/byteorder.h`.
• Detected declarations: `struct bsd_dict`, `struct bsd_db`, `function bsd_clear`, `function bsd_comp_stats`, `function bsd_reset`, `function bsd_free`, `function a`, `function bsd_init`, `function bsd_comp_init`, `function bsd_decomp_init`.
• Atlas domain: Driver Families / drivers/net.
• 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.