linux-kernel - [PATCH net-next 1/2 v2] tools: ynl-gen: fix enum index in _decode

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Message-Id: <20230713090550.132858-2-arkadiusz.kubalewski@intel.com>
Date:   Thu, 13 Jul 2023 11:05:49 +0200
From:   Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>
To:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        kuba@...nel.org, davem@...emloft.net, pabeni@...hat.com,
        edumazet@...gle.com, chuck.lever@...cle.com
Cc:     Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>
Subject: [PATCH net-next 1/2 v2] tools: ynl-gen: fix enum index in _decode_enum(..)

Remove wrong index adjustment, which is a leftover from adding
support for sparse enums.
enum.entries_by_val() function shall not subtract the start-value, as
it is indexed with real enum value.

Fixes: c311aaa74ca1 ("tools: ynl: fix enum-as-flags in the generic CLI")
Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>
---
 tools/net/ynl/lib/ynl.py | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/tools/net/ynl/lib/ynl.py b/tools/net/ynl/lib/ynl.py
index 1b3a36fbb1c3..3908438d3716 100644
--- a/tools/net/ynl/lib/ynl.py
+++ b/tools/net/ynl/lib/ynl.py
@@ -420,16 +420,14 @@ class YnlFamily(SpecFamily):
     def _decode_enum(self, rsp, attr_spec):
         raw = rsp[attr_spec['name']]
         enum = self.consts[attr_spec['enum']]
-        i = attr_spec.get('value-start', 0)
         if 'enum-as-flags' in attr_spec and attr_spec['enum-as-flags']:
             value = set()
             while raw:
                 if raw & 1:
-                    value.add(enum.entries_by_val[i].name)
+                    value.add(enum.entries_by_val[raw & 1].name)
                 raw >>= 1
-                i += 1
         else:
-            value = enum.entries_by_val[raw - i].name
+            value = enum.entries_by_val[raw].name
         rsp[attr_spec['name']] = value
 
     def _decode_binary(self, attr, attr_spec):
-- 
2.37.3