diff options
| author | Thomas Gleixner <[email protected]> | 2024-02-28 23:20:32 +0100 |
|---|---|---|
| committer | Borislav Petkov (AMD) <[email protected]> | 2024-03-04 17:39:24 +0100 |
| commit | 35ce64922c8263448e58a2b9e8d15a64e11e9b2d (patch) | |
| tree | 48f9c9e832c298fa03e74a9d56ee6c944065c89f /arch/x86/kernel/cpu/common.c | |
| parent | 5f75916ec6ecdc6314b637746f3ad809f2fc7379 (diff) | |
x86/idle: Select idle routine only once
The idle routine selection is done on every CPU bringup operation and
has a guard in place which is effective after the first invocation,
which is a pointless exercise.
Invoke it once on the boot CPU and mark the related functions __init.
The guard check has to stay as xen_set_default_idle() runs early.
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Borislav Petkov (AMD) <[email protected]>
Link: https://lore.kernel.org/r/87edcu6vaq.ffs@tglx
Diffstat (limited to 'arch/x86/kernel/cpu/common.c')
| -rw-r--r-- | arch/x86/kernel/cpu/common.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 8f367d376520..5c72af16dd06 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1938,8 +1938,6 @@ static void identify_cpu(struct cpuinfo_x86 *c) /* Init Machine Check Exception if available. */ mcheck_cpu_init(c); - select_idle_routine(c); - #ifdef CONFIG_NUMA numa_add_cpu(smp_processor_id()); #endif @@ -2344,6 +2342,8 @@ void __init arch_cpu_finalize_init(void) { identify_boot_cpu(); + select_idle_routine(); + /* * identify_boot_cpu() initialized SMT support information, let the * core code know. |