diff options
| author | Lorenz Bauer <lmb@cloudflare.com> | 2020-09-21 13:12:19 +0100 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-09-21 15:00:40 -0700 |
| commit | 27774b7073b5d520c80f1fcb8e9993fc139f21bd (patch) | |
| tree | be5f8f63d682dc423cd87746863a814127400463 /include/linux/btf_ids.h | |
| parent | 0d004c020b5574e51f7a525e57d2a11958b334b5 (diff) | |
btf: Add BTF_ID_LIST_SINGLE macro
Add a convenience macro that allows defining a BTF ID list with
a single item. This lets us cut down on repetitive macros.
Suggested-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20200921121227.255763-4-lmb@cloudflare.com
Diffstat (limited to 'include/linux/btf_ids.h')
| -rw-r--r-- | include/linux/btf_ids.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/btf_ids.h b/include/linux/btf_ids.h index 210b086188a3..57890b357f85 100644 --- a/include/linux/btf_ids.h +++ b/include/linux/btf_ids.h @@ -76,6 +76,13 @@ extern u32 name[]; #define BTF_ID_LIST_GLOBAL(name) \ __BTF_ID_LIST(name, globl) +/* The BTF_ID_LIST_SINGLE macro defines a BTF_ID_LIST with + * a single entry. + */ +#define BTF_ID_LIST_SINGLE(name, prefix, typename) \ + BTF_ID_LIST(name) \ + BTF_ID(prefix, typename) + /* * The BTF_ID_UNUSED macro defines 4 zero bytes. * It's used when we want to define 'unused' entry @@ -140,6 +147,7 @@ extern struct btf_id_set name; #define BTF_ID(prefix, name) #define BTF_ID_UNUSED #define BTF_ID_LIST_GLOBAL(name) u32 name[1]; +#define BTF_ID_LIST_SINGLE(name, prefix, typename) static u32 name[1]; #define BTF_SET_START(name) static struct btf_id_set name = { 0 }; #define BTF_SET_START_GLOBAL(name) static struct btf_id_set name = { 0 }; #define BTF_SET_END(name) |