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| author | ikaros <void0red@gmail.com> | 2026-05-27 20:53:58 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2026-05-27 21:18:44 +0300 |
| commit | 8d79873403017dd9f29ec17fa69ba21f72ce4ff8 (patch) | |
| tree | be58f5fc20610dbae6bda1b5c8067d8c12b8bc5c | |
| parent | 8de27e2d83c0d07ae9443c6304575b0609394bfd (diff) | |
| download | linux-8d79873403017dd9f29ec17fa69ba21f72ce4ff8.tar.xz | |
ACPICA: Add alias node support in namespace handling
- Mark nodes as alias in ld_namespace2_begin() function.
- Skip teardown for alias nodes in acpi_ns_detach_object() function.
- Define ANOBJ_IS_ALIAS flag in aclocal.h.
Link: https://github.com/acpica/acpica/commit/cfcc46c4f717
Signed-off-by: ikaros <void0red@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/14020896.uLZWGnKmhe@rafael.j.wysocki
| -rw-r--r-- | drivers/acpi/acpica/aclocal.h | 1 | ||||
| -rw-r--r-- | drivers/acpi/acpica/nsobject.c | 6 |
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index f98640086f4e..cbf09fb08d35 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -169,6 +169,7 @@ struct acpi_namespace_node { #define ANOBJ_IS_EXTERNAL 0x08 /* iASL only: This object created via External() */ #define ANOBJ_METHOD_NO_RETVAL 0x10 /* iASL only: Method has no return value */ #define ANOBJ_METHOD_SOME_NO_RETVAL 0x20 /* iASL only: Method has at least one return value */ +#define ANOBJ_IS_ALIAS 0x40 /* iASL only: Node is an alias to another node */ #define ANOBJ_IS_REFERENCED 0x80 /* iASL only: Object was referenced */ /* Internal ACPI table management - master table list */ diff --git a/drivers/acpi/acpica/nsobject.c b/drivers/acpi/acpica/nsobject.c index 79d86da1c892..a4ccacecca53 100644 --- a/drivers/acpi/acpica/nsobject.c +++ b/drivers/acpi/acpica/nsobject.c @@ -173,6 +173,12 @@ void acpi_ns_detach_object(struct acpi_namespace_node *node) obj_desc = node->object; + /* Alias nodes point directly to other namespace nodes; skip teardown */ + if (node->flags & ANOBJ_IS_ALIAS) { + node->object = NULL; + return_VOID; + } + if (!obj_desc || (obj_desc->common.type == ACPI_TYPE_LOCAL_DATA)) { return_VOID; } |