1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/misc/mei/interface.h b/drivers/misc/mei/interface.h
index cd9b778e8dc5..fb5c7db4723b 100644
--- a/drivers/misc/mei/interface.h
+++ b/drivers/misc/mei/interface.h
@@ -50,6 +50,12 @@ static inline size_t mei_hbuf_max_data(const struct mei_device *dev)
 	return dev->hbuf_depth * sizeof(u32) - sizeof(struct mei_msg_hdr);
 }
 
+/* get slots (dwords) from a message length + header (bytes) */
+static inline unsigned char mei_data2slots(size_t length)
+{
+	return DIV_ROUND_UP(sizeof(struct mei_msg_hdr) + length, 4);
+}
+
 int mei_count_full_read_slots(struct mei_device *dev);