diff --git a/kernel/printk/nbcon.c b/kernel/printk/nbcon.c
index e076096b31c0b47c1e676cc9467f077bcbf3fd1f..7d281e225c9b926b1535d7a76b0c8ee2dc87d2ea 100644
--- a/kernel/printk/nbcon.c
+++ b/kernel/printk/nbcon.c
@@ -140,39 +140,6 @@ static inline bool nbcon_state_try_cmpxchg(struct console *con, struct nbcon_sta
 	return atomic_try_cmpxchg(&ACCESS_PRIVATE(con, nbcon_state), &cur->atom, new->atom);
 }
 
-#ifdef CONFIG_64BIT
-
-#define __seq_to_nbcon_seq(seq) (seq)
-#define __nbcon_seq_to_seq(seq) (seq)
-
-#else /* CONFIG_64BIT */
-
-#define __seq_to_nbcon_seq(seq) ((u32)seq)
-
-static inline u64 __nbcon_seq_to_seq(u32 nbcon_seq)
-{
-	u64 seq;
-	u64 rb_next_seq;
-
-	/*
-	 * The provided sequence is only the lower 32 bits of the ringbuffer
-	 * sequence. It needs to be expanded to 64bit. Get the next sequence
-	 * number from the ringbuffer and fold it.
-	 *
-	 * Having a 32bit representation in the console is sufficient.
-	 * If a console ever gets more than 2^31 records behind
-	 * the ringbuffer then this is the least of the problems.
-	 *
-	 * Also the access to the ring buffer is always safe.
-	 */
-	rb_next_seq = prb_next_seq(prb);
-	seq = rb_next_seq - ((u32)rb_next_seq - nbcon_seq);
-
-	return seq;
-}
-
-#endif /* CONFIG_64BIT */
-
 /**
  * nbcon_seq_read - Read the current console sequence
  * @con:	Console to read the sequence of
@@ -183,7 +150,7 @@ u64 nbcon_seq_read(struct console *con)
 {
 	unsigned long nbcon_seq = atomic_long_read(&ACCESS_PRIVATE(con, nbcon_seq));
 
-	return __nbcon_seq_to_seq(nbcon_seq);
+	return __ulseq_to_u64seq(prb, nbcon_seq);
 }
 
 /**
@@ -204,7 +171,7 @@ void nbcon_seq_force(struct console *con, u64 seq)
 	 */
 	u64 valid_seq = max_t(u64, seq, prb_first_valid_seq(prb));
 
-	atomic_long_set(&ACCESS_PRIVATE(con, nbcon_seq), __seq_to_nbcon_seq(valid_seq));
+	atomic_long_set(&ACCESS_PRIVATE(con, nbcon_seq), __u64seq_to_ulseq(valid_seq));
 
 	/* Clear con->seq since nbcon consoles use con->nbcon_seq instead. */
 	con->seq = 0;
@@ -224,11 +191,11 @@ void nbcon_seq_force(struct console *con, u64 seq)
 __maybe_unused
 static void nbcon_seq_try_update(struct nbcon_context *ctxt, u64 new_seq)
 {
-	unsigned long nbcon_seq = __seq_to_nbcon_seq(ctxt->seq);
+	unsigned long nbcon_seq = __u64seq_to_ulseq(ctxt->seq);
 	struct console *con = ctxt->console;
 
 	if (atomic_long_try_cmpxchg(&ACCESS_PRIVATE(con, nbcon_seq), &nbcon_seq,
-				    __seq_to_nbcon_seq(new_seq))) {
+				    __u64seq_to_ulseq(new_seq))) {
 		ctxt->seq = new_seq;
 	} else {
 		ctxt->seq = nbcon_seq_read(con);
diff --git a/kernel/printk/printk_ringbuffer.h b/kernel/printk/printk_ringbuffer.h
index 18cd25e489b8935225c1ca9292c109af71941eb1..b82a96dc2ea2b818a1884c47158a942902e3e609 100644
--- a/kernel/printk/printk_ringbuffer.h
+++ b/kernel/printk/printk_ringbuffer.h
@@ -381,4 +381,37 @@ bool prb_read_valid_info(struct printk_ringbuffer *rb, u64 seq,
 u64 prb_first_valid_seq(struct printk_ringbuffer *rb);
 u64 prb_next_seq(struct printk_ringbuffer *rb);
 
+#ifdef CONFIG_64BIT
+
+#define __u64seq_to_ulseq(u64seq) (u64seq)
+#define __ulseq_to_u64seq(rb, ulseq) (ulseq)
+
+#else /* CONFIG_64BIT */
+
+#define __u64seq_to_ulseq(u64seq) ((u32)u64seq)
+
+static inline u64 __ulseq_to_u64seq(struct printk_ringbuffer *rb, u32 ulseq)
+{
+	u64 seq;
+	u64 rb_next_seq;
+
+	/*
+	 * The provided sequence is only the lower 32 bits of the ringbuffer
+	 * sequence. It needs to be expanded to 64bit. Get the next sequence
+	 * number from the ringbuffer and fold it.
+	 *
+	 * Having a 32bit representation in the console is sufficient.
+	 * If a console ever gets more than 2^31 records behind
+	 * the ringbuffer then this is the least of the problems.
+	 *
+	 * Also the access to the ring buffer is always safe.
+	 */
+	rb_next_seq = prb_next_seq(rb);
+	seq = rb_next_seq - ((u32)rb_next_seq - ulseq);
+
+	return seq;
+}
+
+#endif /* CONFIG_64BIT */
+
 #endif /* _KERNEL_PRINTK_RINGBUFFER_H */
diff --git a/xx.log b/xx.log
new file mode 100644
index 0000000000000000000000000000000000000000..6933b99134b81df6810a6636e6bb7e9a7b029f08
--- /dev/null
+++ b/xx.log
@@ -0,0 +1,22 @@
+printk: nbcon: Relocate 32bit seq macros
+
+commit e55641cf1214f2888a8676c3d0f74a17c080a8bf upstream.
+
+The macros __seq_to_nbcon_seq() and __nbcon_seq_to_seq() are
+used to provide support for atomic handling of sequence numbers
+on 32bit systems. Until now this was only used by nbcon.c,
+which is why they were located in nbcon.c and include nbcon in
+the name.
+
+In a follow-up commit this functionality is also needed by
+printk_ringbuffer. Rather than duplicating the functionality,
+relocate the macros to printk_ringbuffer.h.
+
+Also, since the macros will be no longer nbcon-specific, rename
+them to __u64seq_to_ulseq() and __ulseq_to_u64seq().
+
+This does not result in any functional change.
+
+Signed-off-by: John Ogness <john.ogness@linutronix.de>
+Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+