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-rw-r--r--include/scsi/scsi_host.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 822e8cda8d9b..46ef8cccc982 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -271,6 +271,13 @@ struct scsi_host_template {
int (* map_queues)(struct Scsi_Host *shost);
/*
+ * Check if scatterlists need to be padded for DMA draining.
+ *
+ * Status: OPTIONAL
+ */
+ bool (* dma_need_drain)(struct request *rq);
+
+ /*
* This function determines the BIOS parameters for a given
* harddisk. These tend to be numbers that are made up by
* the host adapter. Parameters: