[PATCH v2 09/10] dts: fix topology capability comparison
Thomas Monjalon
thomas at monjalon.net
Sat May 9 23:57:00 CEST 2026
TopologyCapability.__gt__() was delegating to __lt__(),
which caused infinite recursion when "other" is not a TopologyCapability:
other.__lt__(self) returns NotImplemented,
Python retries with self.__gt__(other),
and the cycle repeats.
dts/framework/testbed_model/capability.py", line 579, in __gt__
return other < self
^^^^^^^^^^^^
RecursionError: maximum recursion depth exceeded
Similarly, __le__() was delegating to "not __gt__()",
which returns True for non-comparable types instead of False.
Fix both by checking is_comparable_with() first
and comparing topology_type directly, consistent with __lt__().
Fixes: 039256daa8bf ("dts: add topology capability")
Cc: stable at dpdk.org
Signed-off-by: Thomas Monjalon <thomas at monjalon.net>
---
dts/framework/testbed_model/capability.py | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/dts/framework/testbed_model/capability.py b/dts/framework/testbed_model/capability.py
index 960370fc72..96e1cd449f 100644
--- a/dts/framework/testbed_model/capability.py
+++ b/dts/framework/testbed_model/capability.py
@@ -574,7 +574,9 @@ def __gt__(self, other: Any) -> bool:
Returns:
:data:`True` if the instance's topology type is more complex than the compared object's.
"""
- return other < self
+ if not self.is_comparable_with(other):
+ return False
+ return self.topology_type > other.topology_type
def __le__(self, other: Any) -> bool:
"""Compare the :attr:`~TopologyCapability.topology_type`s.
@@ -586,7 +588,9 @@ def __le__(self, other: Any) -> bool:
:data:`True` if the instance's topology type is less complex or equal than
the compared object's.
"""
- return not self > other
+ if not self.is_comparable_with(other):
+ return False
+ return self.topology_type <= other.topology_type
def __hash__(self):
"""Each instance is identified by :attr:`topology_type`."""
--
2.54.0
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