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

Hangbin Liurequested to merge
liuhangbin/centos-stream-10:RHEL-78772_ynl into main

JIRA: https://issues.redhat.com/browse/RHEL-78772 Upstream Status: net.git commit 45375814eb3f

commit 45375814eb3f4245956c0c85092a4eee4441d167 Author: Hangbin Liu liuhangbin@gmail.com Date: Thu May 8 03:54:14 2025 +0000

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

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: Hangbin Liu haliu@redhat.com

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