+/**
+ * blk_queue_update_dma_pad - update pad mask
+ * @q: the request queue for the device
+ * @mask: pad mask
+ *
+ * Update dma pad mask.
+ *
+ * Appending pad buffer to a request modifies the last entry of a
+ * scatter list such that it includes the pad buffer.
+ **/
+void blk_queue_update_dma_pad(struct request_queue *q, unsigned int mask)
+{
+ if (mask > q->dma_pad_mask)
+ q->dma_pad_mask = mask;
+}
+EXPORT_SYMBOL(blk_queue_update_dma_pad);
+