arch/hexagon/include/asm/checksum.h

File Facts

System

Linux kernel

Corpus path

arch/hexagon/include/asm/checksum.h

Extension

.h

Size

685 bytes

Lines

27

Domain

Architecture Layer

Bucket

arch/hexagon

Inferred role

Architecture Layer: implementation source

Status

source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

• CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

• asm-generic/checksum.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef _ASM_CHECKSUM_H
#define _ASM_CHECKSUM_H

#define do_csum	do_csum
unsigned int do_csum(const void *voidptr, int len);

/*
 * computes the checksum of the TCP/UDP pseudo-header
 * returns a 16-bit checksum, already complemented
 */
#define csum_tcpudp_nofold csum_tcpudp_nofold
__wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
			  __u32 len, __u8 proto, __wsum sum);

#define csum_tcpudp_magic csum_tcpudp_magic
__sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
			  __u32 len, __u8 proto, __wsum sum);

#include <asm-generic/checksum.h>

#endif

Annotation

• Immediate include surface: `asm-generic/checksum.h`.
• Atlas domain: Architecture Layer / arch/hexagon.
• Implementation status: source 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.