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bpf: rename MAX_BPF_LINK_TYPE into __MAX_BPF_LINK_TYPE for consistency

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To stay consistent with the naming pattern used for similar cases in BPF
UAPI (__MAX_BPF_ATTACH_TYPE, etc), rename MAX_BPF_LINK_TYPE into
__MAX_BPF_LINK_TYPE.

Also similar to MAX_BPF_ATTACH_TYPE and MAX_BPF_REG, add:

  #define MAX_BPF_LINK_TYPE __MAX_BPF_LINK_TYPE

Not all __MAX_xxx enums have such #define, so I'm not sure if we should
add it or not, but I figured I'll start with a completely backwards
compatible way, and we can drop that, if necessary.

Also adjust a selftest that used MAX_BPF_LINK_TYPE enum.

Suggested-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20231206190920.1651226-1-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Andrii Nakryiko 2023-12-06 11:09:20 -08:00 committed by Alexei Starovoitov
parent c35919dcce
commit 7065eefb38
3 changed files with 7 additions and 3 deletions
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4
include/uapi/linux/bpf.h
View file

@ -1108,9 +1108,11 @@ enum bpf_link_type {
BPF_LINK_TYPE_TCX = 11,
BPF_LINK_TYPE_UPROBE_MULTI = 12,
BPF_LINK_TYPE_NETKIT = 13,
MAX_BPF_LINK_TYPE,
__MAX_BPF_LINK_TYPE,
};
#define MAX_BPF_LINK_TYPE __MAX_BPF_LINK_TYPE
enum bpf_perf_event_type {
BPF_PERF_EVENT_UNSPEC = 0,
BPF_PERF_EVENT_UPROBE = 1,

4
tools/include/uapi/linux/bpf.h
View file

@ -1108,9 +1108,11 @@ enum bpf_link_type {
BPF_LINK_TYPE_TCX = 11,
BPF_LINK_TYPE_UPROBE_MULTI = 12,
BPF_LINK_TYPE_NETKIT = 13,
MAX_BPF_LINK_TYPE,
__MAX_BPF_LINK_TYPE,
};
#define MAX_BPF_LINK_TYPE __MAX_BPF_LINK_TYPE
enum bpf_perf_event_type {
BPF_PERF_EVENT_UNSPEC = 0,
BPF_PERF_EVENT_UPROBE = 1,

2
tools/testing/selftests/bpf/prog_tests/libbpf_str.c
View file

@ -87,7 +87,7 @@ static void test_libbpf_bpf_link_type_str(void)
const char *link_type_str;
char buf[256];
if (link_type == MAX_BPF_LINK_TYPE)
if (link_type == __MAX_BPF_LINK_TYPE)
continue;
link_type_name = btf__str_by_offset(btf, e->name_off);