[PATCH bpf] tools/bpftool: add ringbuf map to a list of known map types

[Andrii Nakryiko]

Add symbolic name "ringbuf" to map to BPF_MAP_TYPE_RINGBUF. Without this,
users will see "type 27" instead of "ringbuf" in `map show` output.

Signed-off-by: Andrii Nakryiko <andr...@fb.com>
---
 tools/bpf/bpftool/map.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/bpf/bpftool/map.c b/tools/bpf/bpftool/map.c
index c5fac8068ba1..99109a6afe17 100644
--- a/tools/bpf/bpftool/map.c
+++ b/tools/bpf/bpftool/map.c
@@ -49,6 +49,7 @@ const char * const map_type_name[] = {
        [BPF_MAP_TYPE_STACK]                    = "stack",
        [BPF_MAP_TYPE_SK_STORAGE]               = "sk_storage",
        [BPF_MAP_TYPE_STRUCT_OPS]               = "struct_ops",
+       [BPF_MAP_TYPE_RINGBUF]                  = "ringbuf",
 };
 
 const size_t map_type_name_size = ARRAY_SIZE(map_type_name);
-- 
2.24.1