diff options
| author | Coco Li <lixiaoyan@google.com> | 2023-11-29 07:27:53 +0000 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2026-03-04 07:20:22 -0500 |
| commit | 1402ebe132a932d1718a61cde40eba880a0b4ff4 (patch) | |
| tree | 3bb72982466952be6dd9db790b084bb795c79cef /scripts/kernel-doc | |
| parent | 4ec8a98b3dc3cdb0344bcda12847597a141d61d6 (diff) | |
cache: enforce cache groups
[ Upstream commit aeb9ce058d7c6193dc41e06b3a5b29d22c446b14 ]
Set up build time warnings to safeguard against future header changes of
organized structs.
Warning includes:
1) whether all variables are still in the same cache group
2) whether all the cache groups have the sum of the members size (in the
maximum condition, including all members defined in configs)
The __cache_group* variables are ignored in kernel-doc check in the
various header files they appear in to enforce the cache groups.
Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Coco Li <lixiaoyan@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: 87b08913a9ae ("inet: move icmp_global_{credit,stamp} to a separate cache line")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'scripts/kernel-doc')
| -rwxr-xr-x | scripts/kernel-doc | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/scripts/kernel-doc b/scripts/kernel-doc index 6e199a745ccb..d963fdf40e90 100755 --- a/scripts/kernel-doc +++ b/scripts/kernel-doc @@ -1592,6 +1592,11 @@ sub push_parameter($$$$$) { $parameterdescs{$param} = "anonymous\n"; $anon_struct_union = 1; } + elsif ($param =~ "__cacheline_group" ) + # handle cache group enforcing variables: they do not need be described in header files + { + return; # ignore __cacheline_group_begin and __cacheline_group_end + } # warn if parameter has no description # (but ignore ones starting with # as these are not parameters |