[tip: x86/apic] x86/apic/32: Remove bigsmp_cpu_present_to_apicid()

[tip-bot2 for Thomas Gleixner]

The following commit has been merged into the x86/apic branch of tip:

Commit-ID:     72338b564fae8e30a16344f0d1321823db5daed6
Gitweb:        https://git.kernel.org/tip/72338b564fae8e30a16344f0d1321823db5daed6
Author:        Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate:    Tue, 08 Aug 2023 15:03:56 -07:00
Committer:     Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
CommitterDate: Wed, 09 Aug 2023 08:10:12 -07:00

x86/apic/32: Remove bigsmp_cpu_present_to_apicid()

It's a copy of default_cpu_present_to_apicid() with the omission of the
actual check whether the CPU is present.

This APIC callback should die completely, but the XEN APIC implementation
does something different which needs to be addressed first.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
---
 arch/x86/kernel/apic/bigsmp_32.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c
index a26cb46..aba8ce1 100644
--- a/arch/x86/kernel/apic/bigsmp_32.c
+++ b/arch/x86/kernel/apic/bigsmp_32.c
@@ -43,14 +43,6 @@ static void bigsmp_setup_apic_routing(void)
 		nr_ioapics);
 }
 
-static int bigsmp_cpu_present_to_apicid(int mps_cpu)
-{
-	if (mps_cpu < nr_cpu_ids)
-		return (int) per_cpu(x86_cpu_to_apicid, mps_cpu);
-
-	return BAD_APICID;
-}
-
 static void bigsmp_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask_t *retmap)
 {
 	/* For clustered we don't have a good way to do this yet - hack */
@@ -119,7 +111,7 @@ static struct apic apic_bigsmp __ro_after_init = {
 	.init_apic_ldr			= bigsmp_init_apic_ldr,
 	.ioapic_phys_id_map		= bigsmp_ioapic_phys_id_map,
 	.setup_apic_routing		= bigsmp_setup_apic_routing,
-	.cpu_present_to_apicid		= bigsmp_cpu_present_to_apicid,
+	.cpu_present_to_apicid		= default_cpu_present_to_apicid,
 	.apicid_to_cpu_present		= physid_set_mask_of_physid,
 	.phys_pkg_id			= bigsmp_phys_pkg_id,