xen-netback: support frontends without feature-rx-notify again

[cascardo/linux.git] / kernel / bpf / test_stub.c

diff --git a/kernel/bpf/test_stub.c b/kernel/bpf/test_stub.c
index fcaddff..0ceae1e 100644 (file)
--- a/kernel/bpf/test_stub.c
+++ b/kernel/bpf/test_stub.c
@@ -18,26 +18,18 @@ struct bpf_context {
        u64 arg2;
 };
 
-static u64 test_func(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5)
-{
-       return 0;
-}
-
-static struct bpf_func_proto test_funcs[] = {
-       [BPF_FUNC_unspec] = {
-               .func = test_func,
-               .gpl_only = true,
-               .ret_type = RET_PTR_TO_MAP_VALUE_OR_NULL,
-               .arg1_type = ARG_CONST_MAP_PTR,
-               .arg2_type = ARG_PTR_TO_MAP_KEY,
-       },
-};
-
 static const struct bpf_func_proto *test_func_proto(enum bpf_func_id func_id)
 {
-       if (func_id < 0 || func_id >= ARRAY_SIZE(test_funcs))
+       switch (func_id) {
+       case BPF_FUNC_map_lookup_elem:
+               return &bpf_map_lookup_elem_proto;
+       case BPF_FUNC_map_update_elem:
+               return &bpf_map_update_elem_proto;
+       case BPF_FUNC_map_delete_elem:
+               return &bpf_map_delete_elem_proto;
+       default:
                return NULL;
-       return &test_funcs[func_id];
+       }
 }
 
 static const struct bpf_context_access {
@@ -78,38 +70,8 @@ static struct bpf_prog_type_list tl_prog = {
        .type = BPF_PROG_TYPE_UNSPEC,
 };
 
-static struct bpf_map *test_map_alloc(union bpf_attr *attr)
-{
-       struct bpf_map *map;
-
-       map = kzalloc(sizeof(*map), GFP_USER);
-       if (!map)
-               return ERR_PTR(-ENOMEM);
-
-       map->key_size = attr->key_size;
-       map->value_size = attr->value_size;
-       map->max_entries = attr->max_entries;
-       return map;
-}
-
-static void test_map_free(struct bpf_map *map)
-{
-       kfree(map);
-}
-
-static struct bpf_map_ops test_map_ops = {
-       .map_alloc = test_map_alloc,
-       .map_free = test_map_free,
-};
-
-static struct bpf_map_type_list tl_map = {
-       .ops = &test_map_ops,
-       .type = BPF_MAP_TYPE_UNSPEC,
-};
-
 static int __init register_test_ops(void)
 {
-       bpf_register_map_type(&tl_map);
        bpf_register_prog_type(&tl_prog);
        return 0;
 }