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-rw-r--r--block/blk-mq-cpumap.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/block/blk-mq-cpumap.c b/block/blk-mq-cpumap.c
index 0afa4dc48365..f945621a0e8f 100644
--- a/block/blk-mq-cpumap.c
+++ b/block/blk-mq-cpumap.c
@@ -60,7 +60,11 @@ int blk_mq_map_queues(struct blk_mq_queue_map *qmap)
}
EXPORT_SYMBOL_GPL(blk_mq_map_queues);
-/*
+/**
+ * blk_mq_hw_queue_to_node - Look up the memory node for a hardware queue index
+ * @qmap: CPU to hardware queue map.
+ * @index: hardware queue index.
+ *
* We have no quick way of doing reverse lookups. This is only used at
* queue init time, so runtime isn't important.
*/