x86, cleanup: Remove obsolete boot_cpu_id variable

boot_cpu_id is there for historical reasons and was renamed to
boot_cpu_physical_apicid in patch:

 c70dcb7 x86: change boot_cpu_id to boot_cpu_physical_apicid

However, there are some remaining occurrences of boot_cpu_id that are
never touched in the kernel and thus its value is always 0.

This patch removes boot_cpu_id completely.

Signed-off-by: Robert Richter <robert.richter@amd.com>
LKML-Reference: <1279731838-1522-8-git-send-email-robert.richter@amd.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/arch/x86/mm/k8topology_64.c b/arch/x86/mm/k8topology_64.c
index 970ed579d4e4..240f86462a83 100644
--- a/arch/x86/mm/k8topology_64.c
+++ b/arch/x86/mm/k8topology_64.c
@@ -54,8 +54,8 @@ static __init int find_northbridge(void)
 static __init void early_get_boot_cpu_id(void)
 {
         /*
-         * need to get boot_cpu_id so can use that to create apicid_to_node
-         * in k8_scan_nodes()
+         * need to get the APIC ID of the BSP so can use that to
+         * create apicid_to_node in k8_scan_nodes()
          */
 #ifdef CONFIG_X86_MPPARSE
         /*
@@ -212,7 +212,7 @@ int __init k8_scan_nodes(void)
         bits = boot_cpu_data.x86_coreid_bits;
         cores = (1<<bits);
         apicid_base = 0;
-        /* need to get boot_cpu_id early for system with apicid lifting */
+        /* get the APIC ID of the BSP early for systems with apicid lifting */
         early_get_boot_cpu_id();
         if (boot_cpu_physical_apicid > 0) {
                 pr_info("BSP APIC ID: %02x\n", boot_cpu_physical_apicid);