diff --git a/kernel/kexec.c b/kernel/kexec.c
index ac0fde7..3fb855a 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1116,7 +1116,7 @@
 	struct elf_prstatus prstatus;
 	u32 *buf;
 
-	if ((cpu < 0) || (cpu >= NR_CPUS))
+	if ((cpu < 0) || (cpu >= nr_cpu_ids))
 		return;
 
 	/* Using ELF notes here is opportunistic.