diff --git a/Documentation/trace/kprobes.rst b/Documentation/trace/kprobes.rst
index 48cf778a2468..fc7ce76eab65 100644
--- a/Documentation/trace/kprobes.rst
+++ b/Documentation/trace/kprobes.rst
@@ -131,8 +131,7 @@ For example, if the function is non-recursive and is called with a
 spinlock held, maxactive = 1 should be enough.  If the function is
 non-recursive and can never relinquish the CPU (e.g., via a semaphore
 or preemption), NR_CPUS should be enough.  If maxactive <= 0, it is
-set to a default value.  If CONFIG_PREEMPT is enabled, the default
-is max(10, 2*NR_CPUS).  Otherwise, the default is NR_CPUS.
+set to a default value: max(10, 2*NR_CPUS).
 
 It's not a disaster if you set maxactive too low; you'll just miss
 some probes.  In the kretprobe struct, the nmissed field is set to
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index a35074f0daa1..1c18ecf9f98b 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -2213,13 +2213,9 @@ int register_kretprobe(struct kretprobe *rp)
 	rp->kp.post_handler = NULL;
 
 	/* Pre-allocate memory for max kretprobe instances */
-	if (rp->maxactive <= 0) {
-#ifdef CONFIG_PREEMPTION
+	if (rp->maxactive <= 0)
 		rp->maxactive = max_t(unsigned int, 10, 2*num_possible_cpus());
-#else
-		rp->maxactive = num_possible_cpus();
-#endif
-	}
+
 #ifdef CONFIG_KRETPROBE_ON_RETHOOK
 	rp->rh = rethook_alloc((void *)rp, kretprobe_rethook_handler);
 	if (!rp->rh)