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-rw-r--r--samples/bpf/bpf_load.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/samples/bpf/bpf_load.h b/samples/bpf/bpf_load.h
index 4d4fd4678a64..ca0563d04744 100644
--- a/samples/bpf/bpf_load.h
+++ b/samples/bpf/bpf_load.h
@@ -24,12 +24,18 @@ struct bpf_map_data {
typedef void (*fixup_map_cb)(struct bpf_map_data *map, int idx);
-extern int map_fd[MAX_MAPS];
extern int prog_fd[MAX_PROGS];
extern int event_fd[MAX_PROGS];
extern char bpf_log_buf[BPF_LOG_BUF_SIZE];
extern int prog_cnt;
+/* There is a one-to-one mapping between map_fd[] and map_data[].
+ * The map_data[] just contains more rich info on the given map.
+ */
+extern int map_fd[MAX_MAPS];
+extern struct bpf_map_data map_data[MAX_MAPS];
+extern int map_data_count;
+
/* parses elf file compiled by llvm .c->.o
* . parses 'maps' section and creates maps via BPF syscall
* . parses 'license' section and passes it to syscall