Reported-by: Pankaj Thakkar <thak...@nicira.com>
Signed-off-by: Ben Pfaff <b...@nicira.com>
---
include/openflow/nicira-ext.h | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/include/openflow/nicira-ext.h b/include/openflow/nicira-ext.h
index 8e6af52..255e30d 100644
--- a/include/openflow/nicira-ext.h
+++ b/include/openflow/nicira-ext.h
@@ -502,6 +502,10 @@ OFP_ASSERT(sizeof(struct nx_action_pop_queue) == 16);
* The switch will reject actions for which src_ofs+n_bits is greater than the
* width of 'src' or dst_ofs+n_bits is greater than the width of 'dst' with
* error type OFPET_BAD_ACTION, code OFPBAC_BAD_ARGUMENT.
+ *
+ * This action behaves properly when 'src' overlaps with 'dst', that is, it
+ * behaves as if 'src' were copied out to a temporary buffer, then the
+ * temporary buffer copied to 'dst'.
*/
struct nx_action_reg_move {
ovs_be16 type; /* OFPAT_VENDOR. */
--
1.7.2.5
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