diff options
author | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2024-04-02 08:17:13 -0400 |
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committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2024-04-02 08:17:13 -0400 |
commit | 5add703f6acad1c63f8a532b6de56e50d548e904 (patch) | |
tree | be39a82716119cd8b7cf7e2734baf8cd9a80ceb7 /tools/testing/selftests/bpf/progs/test_spin_lock.c | |
parent | 71cdfa8cad300caa7afcbba09776bbc8dcfa9e39 (diff) | |
parent | 39cd87c4eb2b893354f3b850f916353f2658ae6f (diff) |
Merge drm/drm-next into drm-intel-next
Catching up on 6.9-rc2
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_spin_lock.c')
-rw-r--r-- | tools/testing/selftests/bpf/progs/test_spin_lock.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_spin_lock.c b/tools/testing/selftests/bpf/progs/test_spin_lock.c index b2440a0ff422..d8d77bdffd3d 100644 --- a/tools/testing/selftests/bpf/progs/test_spin_lock.c +++ b/tools/testing/selftests/bpf/progs/test_spin_lock.c @@ -101,4 +101,69 @@ int bpf_spin_lock_test(struct __sk_buff *skb) err: return err; } + +struct bpf_spin_lock lockA __hidden SEC(".data.A"); + +__noinline +static int static_subprog(struct __sk_buff *ctx) +{ + volatile int ret = 0; + + if (ctx->protocol) + return ret; + return ret + ctx->len; +} + +__noinline +static int static_subprog_lock(struct __sk_buff *ctx) +{ + volatile int ret = 0; + + ret = static_subprog(ctx); + bpf_spin_lock(&lockA); + return ret + ctx->len; +} + +__noinline +static int static_subprog_unlock(struct __sk_buff *ctx) +{ + volatile int ret = 0; + + ret = static_subprog(ctx); + bpf_spin_unlock(&lockA); + return ret + ctx->len; +} + +SEC("tc") +int lock_static_subprog_call(struct __sk_buff *ctx) +{ + int ret = 0; + + bpf_spin_lock(&lockA); + if (ctx->mark == 42) + ret = static_subprog(ctx); + bpf_spin_unlock(&lockA); + return ret; +} + +SEC("tc") +int lock_static_subprog_lock(struct __sk_buff *ctx) +{ + int ret = 0; + + ret = static_subprog_lock(ctx); + bpf_spin_unlock(&lockA); + return ret; +} + +SEC("tc") +int lock_static_subprog_unlock(struct __sk_buff *ctx) +{ + int ret = 0; + + bpf_spin_lock(&lockA); + ret = static_subprog_unlock(ctx); + return ret; +} + char _license[] SEC("license") = "GPL"; |