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-rw-r--r--tools/bpf/bpftool/map.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/bpf/bpftool/map.c b/tools/bpf/bpftool/map.c
index df958af56b6c..44b192e87708 100644
--- a/tools/bpf/bpftool/map.c
+++ b/tools/bpf/bpftool/map.c
@@ -719,6 +719,9 @@ static int dump_map_elem(int fd, void *key, void *value,
if (errno == ENOENT)
msg = "<no entry>";
+ else if (lookup_errno == ENOSPC &&
+ map_info->type == BPF_MAP_TYPE_REUSEPORT_SOCKARRAY)
+ msg = "<cannot read>";
print_entry_error(map_info, key,
msg ? : strerror(lookup_errno));
@@ -775,6 +778,10 @@ static int do_dump(int argc, char **argv)
}
}
+ if (info.type == BPF_MAP_TYPE_REUSEPORT_SOCKARRAY &&
+ info.value_size != 8)
+ p_info("Warning: cannot read values from %s map with value_size != 8",
+ map_type_name[info.type]);
while (true) {
err = bpf_map_get_next_key(fd, prev_key, key);
if (err) {