---
lib/ovsdb-idl.c | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/lib/ovsdb-idl.c b/lib/ovsdb-idl.c
index 94784bd..f4daaed 100644
--- a/lib/ovsdb-idl.c
+++ b/lib/ovsdb-idl.c
@@ -1640,7 +1640,11 @@ ovsdb_idl_txn_complete(struct ovsdb_idl_txn *txn,
* been disabled (by calling ovsdb_idl_omit()).
*
* Usually this function is used indirectly through one of the "set" functions
- * generated by ovsdb-idlc. */
+ * generated by ovsdb-idlc.
+ *
+ * Takes ownership of what 'datum' points to (and in some cases destroys that
+ * data before returning) but makes a copy of 'datum' itself. (Commonly
+ * 'datum' is on the caller's stack.) */
void
ovsdb_idl_txn_write(const struct ovsdb_idl_row *row_,
const struct ovsdb_idl_column *column,
--
1.7.4.4
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