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-rwxr-xr-xsrc/tools/vppapigen/vppapigen.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/tools/vppapigen/vppapigen.py b/src/tools/vppapigen/vppapigen.py
index 620b2ef7b71..a1bb0e184df 100755
--- a/src/tools/vppapigen/vppapigen.py
+++ b/src/tools/vppapigen/vppapigen.py
@@ -345,6 +345,10 @@ class VPPAPIParser(object):
| RPC ID RETURNS ID ';'
| RPC ID RETURNS STREAM ID ';'
| RPC ID RETURNS ID EVENTS event_list ';' '''
+ if p[2] == p[4]:
+ # Verify that caller and reply differ
+ self._parse_error('Reply ID ({}) should not be equal to Caller ID'.format(p[2]),
+ self._token_coord(p, 1))
if len(p) == 8:
p[0] = Service(p[2], p[4], p[6])
elif len(p) == 7: