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authorDaniel Müller <deso@posteo.net>2022-05-23 23:04:28 +0000
committerAndrii Nakryiko <andrii@kernel.org>2022-06-02 16:26:38 -0700
commitc7e7e279dc8367920bddbe96115beef4ec2519a3 (patch)
tree9725374bdf40f5297876023dd660efa21f5cb9b1 /tools/bpf
parentdea73da2213a722d952840edd598f2f3a40ddc68 (diff)
downloadlinux-c7e7e279dc8367920bddbe96115beef4ec2519a3.tar.gz
bpftool: Use libbpf_bpf_link_type_str
This change switches bpftool over to using the recently introduced
libbpf_bpf_link_type_str function instead of maintaining its own string
representation for the bpf_link_type enum.

Signed-off-by: Daniel Müller <deso@posteo.net>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Quentin Monnet <quentin@isovalent.com>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20220523230428.3077108-13-deso@posteo.net
Diffstat (limited to 'tools/bpf')
-rw-r--r--tools/bpf/bpftool/link.c27
1 files changed, 10 insertions, 17 deletions
diff --git a/tools/bpf/bpftool/link.c b/tools/bpf/bpftool/link.c
index 66a25450b598..7a20931c3250 100644
--- a/tools/bpf/bpftool/link.c
+++ b/tools/bpf/bpftool/link.c
@@ -13,19 +13,6 @@
 #include "json_writer.h"
 #include "main.h"
 
-static const char * const link_type_name[] = {
-	[BPF_LINK_TYPE_UNSPEC]			= "unspec",
-	[BPF_LINK_TYPE_RAW_TRACEPOINT]		= "raw_tracepoint",
-	[BPF_LINK_TYPE_TRACING]			= "tracing",
-	[BPF_LINK_TYPE_CGROUP]			= "cgroup",
-	[BPF_LINK_TYPE_ITER]			= "iter",
-	[BPF_LINK_TYPE_NETNS]			= "netns",
-	[BPF_LINK_TYPE_XDP]			= "xdp",
-	[BPF_LINK_TYPE_PERF_EVENT]		= "perf_event",
-	[BPF_LINK_TYPE_KPROBE_MULTI]		= "kprobe_multi",
-	[BPF_LINK_TYPE_STRUCT_OPS]               = "struct_ops",
-};
-
 static struct hashmap *link_table;
 
 static int link_parse_fd(int *argc, char ***argv)
@@ -67,9 +54,12 @@ static int link_parse_fd(int *argc, char ***argv)
 static void
 show_link_header_json(struct bpf_link_info *info, json_writer_t *wtr)
 {
+	const char *link_type_str;
+
 	jsonw_uint_field(wtr, "id", info->id);
-	if (info->type < ARRAY_SIZE(link_type_name))
-		jsonw_string_field(wtr, "type", link_type_name[info->type]);
+	link_type_str = libbpf_bpf_link_type_str(info->type);
+	if (link_type_str)
+		jsonw_string_field(wtr, "type", link_type_str);
 	else
 		jsonw_uint_field(wtr, "type", info->type);
 
@@ -187,9 +177,12 @@ static int show_link_close_json(int fd, struct bpf_link_info *info)
 
 static void show_link_header_plain(struct bpf_link_info *info)
 {
+	const char *link_type_str;
+
 	printf("%u: ", info->id);
-	if (info->type < ARRAY_SIZE(link_type_name))
-		printf("%s  ", link_type_name[info->type]);
+	link_type_str = libbpf_bpf_link_type_str(info->type);
+	if (link_type_str)
+		printf("%s  ", link_type_str);
 	else
 		printf("type %u  ", info->type);