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Diffstat (limited to 'tools/testing/selftests/bpf/progs/linked_list_fail.c')
-rw-r--r--tools/testing/selftests/bpf/progs/linked_list_fail.c100
1 files changed, 62 insertions, 38 deletions
diff --git a/tools/testing/selftests/bpf/progs/linked_list_fail.c b/tools/testing/selftests/bpf/progs/linked_list_fail.c
index 1d9017240e19..69cdc07cba13 100644
--- a/tools/testing/selftests/bpf/progs/linked_list_fail.c
+++ b/tools/testing/selftests/bpf/progs/linked_list_fail.c
@@ -54,28 +54,44 @@
return 0; \
}
-CHECK(kptr, push_front, &f->head);
-CHECK(kptr, push_back, &f->head);
CHECK(kptr, pop_front, &f->head);
CHECK(kptr, pop_back, &f->head);
-CHECK(global, push_front, &ghead);
-CHECK(global, push_back, &ghead);
CHECK(global, pop_front, &ghead);
CHECK(global, pop_back, &ghead);
-CHECK(map, push_front, &v->head);
-CHECK(map, push_back, &v->head);
CHECK(map, pop_front, &v->head);
CHECK(map, pop_back, &v->head);
-CHECK(inner_map, push_front, &iv->head);
-CHECK(inner_map, push_back, &iv->head);
CHECK(inner_map, pop_front, &iv->head);
CHECK(inner_map, pop_back, &iv->head);
#undef CHECK
+#define CHECK(test, op, hexpr, nexpr) \
+ SEC("?tc") \
+ int test##_missing_lock_##op(void *ctx) \
+ { \
+ INIT; \
+ void (*p)(void *, void *) = (void *)&bpf_list_##op; \
+ p(hexpr, nexpr); \
+ return 0; \
+ }
+
+CHECK(kptr, push_front, &f->head, b);
+CHECK(kptr, push_back, &f->head, b);
+
+CHECK(global, push_front, &ghead, f);
+CHECK(global, push_back, &ghead, f);
+
+CHECK(map, push_front, &v->head, f);
+CHECK(map, push_back, &v->head, f);
+
+CHECK(inner_map, push_front, &iv->head, f);
+CHECK(inner_map, push_back, &iv->head, f);
+
+#undef CHECK
+
#define CHECK(test, op, lexpr, hexpr) \
SEC("?tc") \
int test##_incorrect_lock_##op(void *ctx) \
@@ -108,13 +124,49 @@ CHECK(inner_map, pop_back, &iv->head);
CHECK(inner_map_global, op, &iv->lock, &ghead); \
CHECK(inner_map_map, op, &iv->lock, &v->head);
-CHECK_OP(push_front);
-CHECK_OP(push_back);
CHECK_OP(pop_front);
CHECK_OP(pop_back);
#undef CHECK
#undef CHECK_OP
+
+#define CHECK(test, op, lexpr, hexpr, nexpr) \
+ SEC("?tc") \
+ int test##_incorrect_lock_##op(void *ctx) \
+ { \
+ INIT; \
+ void (*p)(void *, void*) = (void *)&bpf_list_##op; \
+ bpf_spin_lock(lexpr); \
+ p(hexpr, nexpr); \
+ return 0; \
+ }
+
+#define CHECK_OP(op) \
+ CHECK(kptr_kptr, op, &f1->lock, &f2->head, b); \
+ CHECK(kptr_global, op, &f1->lock, &ghead, f); \
+ CHECK(kptr_map, op, &f1->lock, &v->head, f); \
+ CHECK(kptr_inner_map, op, &f1->lock, &iv->head, f); \
+ \
+ CHECK(global_global, op, &glock2, &ghead, f); \
+ CHECK(global_kptr, op, &glock, &f1->head, b); \
+ CHECK(global_map, op, &glock, &v->head, f); \
+ CHECK(global_inner_map, op, &glock, &iv->head, f); \
+ \
+ CHECK(map_map, op, &v->lock, &v2->head, f); \
+ CHECK(map_kptr, op, &v->lock, &f2->head, b); \
+ CHECK(map_global, op, &v->lock, &ghead, f); \
+ CHECK(map_inner_map, op, &v->lock, &iv->head, f); \
+ \
+ CHECK(inner_map_inner_map, op, &iv->lock, &iv2->head, f); \
+ CHECK(inner_map_kptr, op, &iv->lock, &f2->head, b); \
+ CHECK(inner_map_global, op, &iv->lock, &ghead, f); \
+ CHECK(inner_map_map, op, &iv->lock, &v->head, f);
+
+CHECK_OP(push_front);
+CHECK_OP(push_back);
+
+#undef CHECK
+#undef CHECK_OP
#undef INIT
SEC("?kprobe/xyz")
@@ -304,34 +356,6 @@ int direct_write_node(void *ctx)
}
static __always_inline
-int write_after_op(void (*push_op)(void *head, void *node))
-{
- struct foo *f;
-
- f = bpf_obj_new(typeof(*f));
- if (!f)
- return 0;
- bpf_spin_lock(&glock);
- push_op(&ghead, &f->node);
- f->data = 42;
- bpf_spin_unlock(&glock);
-
- return 0;
-}
-
-SEC("?tc")
-int write_after_push_front(void *ctx)
-{
- return write_after_op((void *)bpf_list_push_front);
-}
-
-SEC("?tc")
-int write_after_push_back(void *ctx)
-{
- return write_after_op((void *)bpf_list_push_back);
-}
-
-static __always_inline
int use_after_unlock(void (*op)(void *head, void *node))
{
struct foo *f;