drivers/block/drbd/drbd_buildtag.c

File Facts

System

Linux kernel

Corpus path

drivers/block/drbd/drbd_buildtag.c

Extension

.c

Size

437 bytes

Lines

23

Domain

Driver Families

Bucket

drivers/block

Inferred role

Driver Families: implementation source

Status

source 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.

Dependency Surface

• drbd_config.h
• linux/module.h

Detected Declarations

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

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
#include "drbd_config.h"
#include <linux/module.h>

const char *drbd_buildtag(void)
{
	/* DRBD built from external sources has here a reference to the
	 * git hash of the source code.
	 */

	static char buildtag[38] = "\0uilt-in";

	if (buildtag[0] == 0) {
#ifdef MODULE
		sprintf(buildtag, "srcversion: %-24s", THIS_MODULE->srcversion);
#else
		buildtag[0] = 'b';
#endif
	}

	return buildtag;
}

Annotation

• Immediate include surface: `drbd_config.h`, `linux/module.h`.
• Atlas domain: Driver Families / drivers/block.
• 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.