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tools: ynl: create local ARRAY_SIZE() helper

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libc doesn't have an ARRAY_SIZE() create one locally.

Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Link: https://lore.kernel.org/r/20240227223032.1835527-6-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2024-02-27 14:30:22 -08:00
parent 0b3ece4422
commit 7600875f29
2 changed files with 5 additions and 2 deletions
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3
tools/net/ynl/lib/ynl-priv.h
View File

@ -27,6 +27,9 @@ enum ynl_policy_type {
YNL_PT_BITFIELD32,
};
#define YNL_ARRAY_SIZE(array) (sizeof(array) ? \
sizeof(array) / sizeof(array[0]) : 0)
struct ynl_policy_attr {
enum ynl_policy_type type;
unsigned int len;

4
tools/net/ynl/ynl-gen-c.py
View File

@ -1535,7 +1535,7 @@ def _put_enum_to_str_helper(cw, render_name, map_name, arg_name, enum=None):
cw.block_start()
if enum and enum.type == 'flags':
cw.p(f'{arg_name} = ffs({arg_name}) - 1;')
cw.p(f'if ({arg_name} < 0 || {arg_name} >= (int)MNL_ARRAY_SIZE({map_name}))')
cw.p(f'if ({arg_name} < 0 || {arg_name} >= (int)YNL_ARRAY_SIZE({map_name}))')
cw.p('return NULL;')
cw.p(f'return {map_name}[{arg_name}];')
cw.block_end()
@ -2569,7 +2569,7 @@ def render_user_family(family, cw, prototype):
cw.p('.hdr_len\t= sizeof(struct genlmsghdr),')
if family.ntfs:
cw.p(f".ntf_info\t= {family['name']}_ntf_info,")
cw.p(f".ntf_info_size\t= MNL_ARRAY_SIZE({family['name']}_ntf_info),")
cw.p(f".ntf_info_size\t= YNL_ARRAY_SIZE({family['name']}_ntf_info),")
cw.block_end(line=';')