drivers/firmware/efi/esrt.c

Source file repositories/reference/linux-study-clean/drivers/firmware/efi/esrt.c

File Facts

System: Linux kernel
Corpus path: drivers/firmware/efi/esrt.c
Extension: .c
Size: 10521 bytes
Lines: 430
Domain: Driver Families
Bucket: drivers/firmware
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/capability.h
linux/device.h
linux/efi.h
linux/init.h
linux/io.h
linux/kernel.h
linux/kobject.h
linux/list.h
linux/memblock.h
linux/slab.h
linux/types.h
asm/io.h
asm/early_ioremap.h

Detected Declarations

struct efi_system_resource_entry_v1
struct efi_system_resource_table
struct esre_entry
struct esre_attribute
function esre_attr_show
function fw_class_show
function esre_release
function esre_create_sysfs_entry
function esrt_table_exists
function esrt_attr_is_visible
function efi_esrt_init
function register_entries
function cleanup_entry_list
function list_for_each_entry_safe
function esrt_sysfs_init
module init esrt_sysfs_init

Annotated Snippet

device_initcall(esrt_sysfs_init);

/*
MODULE_AUTHOR("Peter Jones <pjones@redhat.com>");
MODULE_DESCRIPTION("EFI System Resource Table support");
MODULE_LICENSE("GPL");
*/

Annotation

Immediate include surface: `linux/capability.h`, `linux/device.h`, `linux/efi.h`, `linux/init.h`, `linux/io.h`, `linux/kernel.h`, `linux/kobject.h`, `linux/list.h`.
Detected declarations: `struct efi_system_resource_entry_v1`, `struct efi_system_resource_table`, `struct esre_entry`, `struct esre_attribute`, `function esre_attr_show`, `function fw_class_show`, `function esre_release`, `function esre_create_sysfs_entry`, `function esrt_table_exists`, `function esrt_attr_is_visible`.
Atlas domain: Driver Families / drivers/firmware.
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.