tools/net/ynl: ethtool: fix crash when Hardware Clock info is missing

[ Upstream commit 45375814eb3f4245956c0c85092a4eee4441d167 ]

Fix a crash in the ethtool YNL implementation when Hardware Clock information
is not present in the response. This ensures graceful handling of devices or
drivers that do not provide this optional field. e.g.

  Traceback (most recent call last):
    File "/net/tools/net/ynl/pyynl/./ethtool.py", line 438, in <module>
      main()
      ~~~~^^
    File "/net/tools/net/ynl/pyynl/./ethtool.py", line 341, in main
      print(f'PTP Hardware Clock: {tsinfo["phc-index"]}')
                                   ~~~~~~^^^^^^^^^^^^^
  KeyError: 'phc-index'

Fixes: f3d07b02b2b8 ("tools: ynl: ethtool testing tool")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250508035414.82974-1-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/tools/net/ynl/ethtool.py b/tools/net/ynl/ethtool.py
index 47264ae20036bd9835f195a860e3d80ce6d11416..ffd8eb6d1904831cacd1d132556e20e911fe6a0b 100755 (executable)
--- a/tools/net/ynl/ethtool.py
+++ b/tools/net/ynl/ethtool.py
@@ -333,16 +333,24 @@ def main():
         print('Capabilities:')
         [print(f'\t{v}') for v in bits_to_dict(tsinfo['timestamping'])]
 
-        print(f'PTP Hardware Clock: {tsinfo["phc-index"]}')
+        print(f'PTP Hardware Clock: {tsinfo.get("phc-index", "none")}')
 
-        print('Hardware Transmit Timestamp Modes:')
-        [print(f'\t{v}') for v in bits_to_dict(tsinfo['tx-types'])]
+        if 'tx-types' in tsinfo:
+            print('Hardware Transmit Timestamp Modes:')
+            [print(f'\t{v}') for v in bits_to_dict(tsinfo['tx-types'])]
+        else:
+            print('Hardware Transmit Timestamp Modes: none')
+
+        if 'rx-filters' in tsinfo:
+            print('Hardware Receive Filter Modes:')
+            [print(f'\t{v}') for v in bits_to_dict(tsinfo['rx-filters'])]
+        else:
+            print('Hardware Receive Filter Modes: none')
 
-        print('Hardware Receive Filter Modes:')
-        [print(f'\t{v}') for v in bits_to_dict(tsinfo['rx-filters'])]
+        if 'stats' in tsinfo and tsinfo['stats']:
+            print('Statistics:')
+            [print(f'\t{k}: {v}') for k, v in tsinfo['stats'].items()]
 
-        print('Statistics:')
-        [print(f'\t{k}: {v}') for k, v in tsinfo['stats'].items()]
         return
 
     print(f'Settings for {args.device}:')