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authorDave Airlie <airlied@redhat.com>2023-08-24 07:26:06 +1000
committerDave Airlie <airlied@redhat.com>2023-08-24 07:26:06 +1000
commitfdebffeba8b877368ddcc139c26278c1c97931a4 (patch)
tree5ebf85a3e26d55ea388aa7a8608222205a4d59ba /tools/testing/selftests/bpf/progs/async_stack_depth.c
parentcacaeb27ade4b793c456179bb6eda4592d206cd8 (diff)
parent706a741595047797872e669b3101429ab8d378ef (diff)
BackMerge tag 'v6.5-rc7' into drm-next
Linux 6.5-rc7 This is needed for the CI stuff and the msm pull has fixes in it. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/async_stack_depth.c')
-rw-r--r--tools/testing/selftests/bpf/progs/async_stack_depth.c25
1 files changed, 23 insertions, 2 deletions
diff --git a/tools/testing/selftests/bpf/progs/async_stack_depth.c b/tools/testing/selftests/bpf/progs/async_stack_depth.c
index 477ba950bb43..3517c0e01206 100644
--- a/tools/testing/selftests/bpf/progs/async_stack_depth.c
+++ b/tools/testing/selftests/bpf/progs/async_stack_depth.c
@@ -22,9 +22,16 @@ static int timer_cb(void *map, int *key, struct bpf_timer *timer)
return buf[69];
}
+__attribute__((noinline))
+static int bad_timer_cb(void *map, int *key, struct bpf_timer *timer)
+{
+ volatile char buf[300] = {};
+ return buf[255] + timer_cb(NULL, NULL, NULL);
+}
+
SEC("tc")
-__failure __msg("combined stack size of 2 calls")
-int prog(struct __sk_buff *ctx)
+__failure __msg("combined stack size of 2 calls is 576. Too large")
+int pseudo_call_check(struct __sk_buff *ctx)
{
struct hmap_elem *elem;
volatile char buf[256] = {};
@@ -37,4 +44,18 @@ int prog(struct __sk_buff *ctx)
return bpf_timer_set_callback(&elem->timer, timer_cb) + buf[0];
}
+SEC("tc")
+__failure __msg("combined stack size of 2 calls is 608. Too large")
+int async_call_root_check(struct __sk_buff *ctx)
+{
+ struct hmap_elem *elem;
+ volatile char buf[256] = {};
+
+ elem = bpf_map_lookup_elem(&hmap, &(int){0});
+ if (!elem)
+ return 0;
+
+ return bpf_timer_set_callback(&elem->timer, bad_timer_cb) + buf[0];
+}
+
char _license[] SEC("license") = "GPL";