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Tue, 17 Mar 2026 10:19:01 -0700 (PDT) From: Jiri Olsa X-Google-Original-From: Jiri Olsa Date: Tue, 17 Mar 2026 18:18:59 +0100 To: Leon Hwang Cc: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , bpf@vger.kernel.org, linux-trace-kernel@vger.kernel.org, Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , Menglong Dong , Steven Rostedt Subject: Re: [PATCHv3 bpf-next 20/24] selftests/bpf: Add tracing multi cookies test Message-ID: References: <20260316075138.465430-1-jolsa@kernel.org> <20260316075138.465430-21-jolsa@kernel.org> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Tue, Mar 17, 2026 at 11:06:25AM +0800, Leon Hwang wrote: SNIP > > diff --git a/tools/testing/selftests/bpf/progs/tracing_multi_check.c b/tools/testing/selftests/bpf/progs/tracing_multi_check.c > > index 0e3248312dd5..e6047d5a078a 100644 > > --- a/tools/testing/selftests/bpf/progs/tracing_multi_check.c > > +++ b/tools/testing/selftests/bpf/progs/tracing_multi_check.c > > @@ -7,6 +7,7 @@ > > char _license[] SEC("license") = "GPL"; > > > > int pid = 0; > > +bool test_cookies = false; > > > > extern const void bpf_fentry_test1 __ksym; > > extern const void bpf_fentry_test2 __ksym; > > @@ -28,7 +29,7 @@ extern const void bpf_testmod_fentry_test11 __ksym; > > void tracing_multi_arg_check(__u64 *ctx, __u64 *test_result, bool is_return) > > { > > void *ip = (void *) bpf_get_func_ip(ctx); > > - __u64 value = 0, ret = 0; > > + __u64 value = 0, ret = 0, cookie = 0; > > long err = 0; > > > > if (bpf_get_current_pid_tgid() >> 32 != pid) > > @@ -36,6 +37,8 @@ void tracing_multi_arg_check(__u64 *ctx, __u64 *test_result, bool is_return) > > > > if (is_return) > > err |= bpf_get_func_ret(ctx, &ret); > > + if (test_cookies) > > + cookie = test_cookies ? bpf_get_attach_cookie(ctx) : 0; > ^ dup test_cookies check ? Can drop this one. heh nice, yea, thanks jirka