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authorStanislav Fomichev <sdf@fomichev.me>2024-12-04 07:55:42 -0800
committerJakub Kicinski <kuba@kernel.org>2024-12-05 12:03:03 -0800
commit523d3cc4b6d1ae18bfa516345d48332d455181e6 (patch)
tree8553c15aa6d71a6edebd4448a504d1c0752d8c3e
parent302cc446cbd92aadff72a647cebc13d5634f8342 (diff)
ynl: support enum-cnt-name attribute in legacy definitions
This is similar to existing attr-cnt-name in the attributes to allow changing the name of the 'count' enum entry. Signed-off-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20241204155549.641348-2-sdf@fomichev.me Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--Documentation/netlink/genetlink-c.yaml3
-rw-r--r--Documentation/netlink/genetlink-legacy.yaml3
-rw-r--r--Documentation/userspace-api/netlink/c-code-gen.rst4
-rwxr-xr-xtools/net/ynl/ynl-gen-c.py8
4 files changed, 15 insertions, 3 deletions
diff --git a/Documentation/netlink/genetlink-c.yaml b/Documentation/netlink/genetlink-c.yaml
index 4f803eaac6d8..9660ffb1ed6a 100644
--- a/Documentation/netlink/genetlink-c.yaml
+++ b/Documentation/netlink/genetlink-c.yaml
@@ -106,6 +106,9 @@ properties:
name-prefix:
description: For enum the prefix of the values, optional.
type: string
+ enum-cnt-name:
+ description: Name of the render-max counter enum entry.
+ type: string
# End genetlink-c
attribute-sets:
diff --git a/Documentation/netlink/genetlink-legacy.yaml b/Documentation/netlink/genetlink-legacy.yaml
index 8db0e22fa72c..16380e12cabe 100644
--- a/Documentation/netlink/genetlink-legacy.yaml
+++ b/Documentation/netlink/genetlink-legacy.yaml
@@ -117,6 +117,9 @@ properties:
name-prefix:
description: For enum the prefix of the values, optional.
type: string
+ enum-cnt-name:
+ description: Name of the render-max counter enum entry.
+ type: string
# End genetlink-c
# Start genetlink-legacy
members:
diff --git a/Documentation/userspace-api/netlink/c-code-gen.rst b/Documentation/userspace-api/netlink/c-code-gen.rst
index 89de42c13350..46415e6d646d 100644
--- a/Documentation/userspace-api/netlink/c-code-gen.rst
+++ b/Documentation/userspace-api/netlink/c-code-gen.rst
@@ -56,7 +56,9 @@ If ``name-prefix`` is specified it replaces the ``$family-$enum``
portion of the entry name.
Boolean ``render-max`` controls creation of the max values
-(which are enabled by default for attribute enums).
+(which are enabled by default for attribute enums). These max
+values are named ``__$pfx-MAX`` and ``$pfx-MAX``. The name
+of the first value can be overridden via ``enum-cnt-name`` property.
Attributes
==========
diff --git a/tools/net/ynl/ynl-gen-c.py b/tools/net/ynl/ynl-gen-c.py
index d8201c4b1520..bfe95826ae3e 100755
--- a/tools/net/ynl/ynl-gen-c.py
+++ b/tools/net/ynl/ynl-gen-c.py
@@ -801,6 +801,7 @@ class EnumSet(SpecEnumSet):
self.user_type = 'int'
self.value_pfx = yaml.get('name-prefix', f"{family.ident_name}-{yaml['name']}-")
+ self.enum_cnt_name = yaml.get('enum-cnt-name', None)
super().__init__(family, yaml)
@@ -2472,9 +2473,12 @@ def render_uapi(family, cw):
max_val = f' = {enum.get_mask()},'
cw.p(max_name + max_val)
else:
+ cnt_name = enum.enum_cnt_name
max_name = c_upper(name_pfx + 'max')
- cw.p('__' + max_name + ',')
- cw.p(max_name + ' = (__' + max_name + ' - 1)')
+ if not cnt_name:
+ cnt_name = '__' + name_pfx + 'max'
+ cw.p(c_upper(cnt_name) + ',')
+ cw.p(max_name + ' = (' + c_upper(cnt_name) + ' - 1)')
cw.block_end(line=';')
cw.nl()
elif const['type'] == 'const':