git: ec59a50a60a3 - stable/15 - acpi_cpu(4): Remove unused 'acpi_cpu_disabled' boolean

The branch stable/15 has been updated by olce:

URL: https://cgit.FreeBSD.org/src/commit/?id=ec59a50a60a3aade4921c80cfcd060a09596ec93

commit ec59a50a60a3aade4921c80cfcd060a09596ec93
Author:     Olivier Certner <olce@FreeBSD.org>
AuthorDate: 2026-06-26 14:40:50 +0000
Commit:     Olivier Certner <olce@FreeBSD.org>
CommitDate: 2026-07-24 04:33:35 +0000

    acpi_cpu(4): Remove unused 'acpi_cpu_disabled' boolean
    
    It is not used anywhere.  Disabling acpi_cpu(4) can be done through the
    regular ACPI disable mechanism (using the 'debug.acpi.disabled' tunable,
    see acpi_disabled()).
    
    Reviewed by:    emaste, obiwac
    Fixes:          ac3ede5371af ("x86/xen: remove PVHv1 code")
    MFC after:      3 days
    Event:          Halifax Hackathon 202606
    Location:       Dalhousie CS Faculty building
    Sponsored by:   The FreeBSD Foundation
    Differential Revision:  https://reviews.freebsd.org/D57888
    
    (cherry picked from commit 98a77972381c6bb5ceda375fd1db7dccb3a1c89e)
---
 sys/dev/acpica/acpi_cpu.c | 5 +----
 sys/x86/include/init.h    | 3 ---
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/sys/dev/acpica/acpi_cpu.c b/sys/dev/acpica/acpi_cpu.c
index f9b9a386c0c5..51a7e513f649 100644
--- a/sys/dev/acpica/acpi_cpu.c
+++ b/sys/dev/acpica/acpi_cpu.c
@@ -139,9 +139,6 @@ struct acpi_cpu_device {
 
 #define	CPUDEV_DEVICE_ID	"ACPI0007"
 
-/* Knob to disable acpi_cpu devices */
-bool acpi_cpu_disabled = false;
-
 /* Platform hardware resource information. */
 static uint32_t		 cpu_smi_cmd;	/* Value to write to SMI_CMD. */
 static uint8_t		 cpu_cst_cnt;	/* Indicate we are _CST aware. */
@@ -237,7 +234,7 @@ acpi_cpu_probe(device_t dev)
     ACPI_STATUS		   status;
     ACPI_OBJECT_TYPE	   type;
 
-    if (acpi_disabled("cpu") || acpi_cpu_disabled)
+    if (acpi_disabled("cpu"))
 	return (ENXIO);
     type = acpi_get_type(dev);
     if (type != ACPI_TYPE_PROCESSOR && type != ACPI_TYPE_DEVICE)
diff --git a/sys/x86/include/init.h b/sys/x86/include/init.h
index f8979ca74d7f..1977f4729487 100644
--- a/sys/x86/include/init.h
+++ b/sys/x86/include/init.h
@@ -43,9 +43,6 @@ struct init_ops {
 
 extern struct init_ops init_ops;
 
-/* Knob to disable acpi_cpu devices */
-extern bool acpi_cpu_disabled;
-
 /* Knob to disable acpi_hpet device */
 extern bool acpi_hpet_disabled;