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Wed, 17 Dec 2025 01:55:52 -0800 (PST) From: Menglong Dong X-Google-Original-From: Menglong Dong To: ast@kernel.org, andrii@kernel.org Cc: davem@davemloft.net, dsahern@kernel.org, daniel@iogearbox.net, martin.lau@linux.dev, eddyz87@gmail.com, song@kernel.org, yonghong.song@linux.dev, john.fastabend@gmail.com, kpsingh@kernel.org, sdf@fomichev.me, haoluo@google.com, jolsa@kernel.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, netdev@vger.kernel.org, bpf@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH bpf-next v4 9/9] selftests/bpf: test fsession mixed with fentry and fexit Date: Wed, 17 Dec 2025 17:54:45 +0800 Message-ID: <20251217095445.218428-10-dongml2@chinatelecom.cn> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251217095445.218428-1-dongml2@chinatelecom.cn> References: <20251217095445.218428-1-dongml2@chinatelecom.cn> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Test the fsession when it is used together with fentry, fexit. Signed-off-by: Menglong Dong --- .../selftests/bpf/progs/fsession_test.c | 34 +++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/tools/testing/selftests/bpf/progs/fsession_test.c b/tools/testing/selftests/bpf/progs/fsession_test.c index f7c96ef1c7a9..223a6ea47888 100644 --- a/tools/testing/selftests/bpf/progs/fsession_test.c +++ b/tools/testing/selftests/bpf/progs/fsession_test.c @@ -190,3 +190,37 @@ int BPF_PROG(test10, int a) test10_exit_ok = *cookie == 0x1111222233334444ull; return 0; } + +__u64 test11_entry_result = 0; +__u64 test11_exit_result = 0; + +SEC("fsession/bpf_fentry_test1") +int BPF_PROG(test11, int a, int ret) +{ + __u64 *cookie = bpf_fsession_cookie(ctx); + + if (!bpf_fsession_is_return(ctx)) { + test11_entry_result = a == 1 && ret == 0; + *cookie = 0x123456ULL; + return 0; + } + + test11_exit_result = a == 1 && ret == 2 && *cookie == 0x123456ULL; + return 0; +} + +__u64 test12_result = 0; +SEC("fexit/bpf_fentry_test1") +int BPF_PROG(test12, int a, int ret) +{ + test12_result = a == 1 && ret == 2; + return 0; +} + +__u64 test13_result = 0; +SEC("fentry/bpf_fentry_test1") +int BPF_PROG(test13, int a) +{ + test13_result = a == 1; + return 0; +} -- 2.52.0