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tools: ynl-gen: don't declare loop iterator in place

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The codegen tries to follow the "old" C style and declare loop
iterators at the start of the block / function. Only nested
request handling breaks this style, so adjust it.

Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20250414211851.602096-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2025-04-14 14:18:44 -07:00
parent 00ffb3724c
commit 4d07bbf2d4
1 changed files with 21 additions and 4 deletions
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25
tools/net/ynl/pyynl/ynl_gen_c.py
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@ -654,10 +654,10 @@ class TypeMultiAttr(Type):
def attr_put(self, ri, var):
if self.attr['type'] in scalars:
put_type = self.type
ri.cw.p(f"for (unsigned int i = 0; i < {var}->n_{self.c_name}; i++)")
ri.cw.p(f"for (i = 0; i < {var}->n_{self.c_name}; i++)")
ri.cw.p(f"ynl_attr_put_{put_type}(nlh, {self.enum_name}, {var}->{self.c_name}[i]);")
elif 'type' not in self.attr or self.attr['type'] == 'nest':
ri.cw.p(f"for (unsigned int i = 0; i < {var}->n_{self.c_name}; i++)")
ri.cw.p(f"for (i = 0; i < {var}->n_{self.c_name}; i++)")
self._attr_put_line(ri, var, f"{self.nested_render_name}_put(nlh, " +
f"{self.enum_name}, &{var}->{self.c_name}[i])")
else:
@ -1644,11 +1644,23 @@ def put_req_nested_prototype(ri, struct, suffix=';'):
def put_req_nested(ri, struct):
local_vars = []
init_lines = []
local_vars.append('struct nlattr *nest;')
init_lines.append("nest = ynl_attr_nest_start(nlh, attr_type);")
for _, arg in struct.member_list():
if arg.presence_type() == 'count':
local_vars.append('unsigned int i;')
break
put_req_nested_prototype(ri, struct, suffix='')
ri.cw.block_start()
ri.cw.write_func_lvar('struct nlattr *nest;')
ri.cw.write_func_lvar(local_vars)
ri.cw.p("nest = ynl_attr_nest_start(nlh, attr_type);")
for line in init_lines:
ri.cw.p(line)
for _, arg in struct.member_list():
arg.attr_put(ri, "obj")
@ -1850,6 +1862,11 @@ def print_req(ri):
local_vars += ['size_t hdr_len;',
'void *hdr;']
for _, attr in ri.struct["request"].member_list():
if attr.presence_type() == 'count':
local_vars += ['unsigned int i;']
break
print_prototype(ri, direction, terminate=False)
ri.cw.block_start()
ri.cw.write_func_lvar(local_vars)