[PATCH net-next 14/14] selftests/bpf: Use non-trivial test payload in xdp_context tests

Replace the sequential test payload pattern (0x01..0x38) with
higher-entropy values that don't alias common protocol header fields
such as IP version/IHL or ethertype LSBs. This reduces the chance of
false positives from stray packets.

Signed-off-by: Jakub Sitnicki <[email protected]>
---
 tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c | 8 ++++----
 tools/testing/selftests/bpf/progs/test_xdp_meta.c             | 8 ++++----
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c b/tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c
index f5fbc19757e3..8bf586b5af32 100644
--- a/tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c
@@ -21,10 +21,10 @@
 
 #define TEST_PAYLOAD_LEN 32
 static const __u8 test_payload[TEST_PAYLOAD_LEN] = {
-	0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
-	0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
-	0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
-	0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38,
+	0x49, 0x20, 0x63, 0x72, 0x6f, 0x73, 0x73, 0x65,
+	0x64, 0x20, 0x68, 0x6f, 0x6f, 0x6b, 0x73, 0x20,
+	0x26, 0x20, 0x6c, 0x69, 0x76, 0x65, 0x64, 0x20,
+	0x74, 0x6f, 0x20, 0x74, 0x65, 0x6c, 0x6c, 0x21,
 };
 
 void test_xdp_context_error(int prog_fd, struct bpf_test_run_opts opts,
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_meta.c b/tools/testing/selftests/bpf/progs/test_xdp_meta.c
index 4c224d5fe1b2..b0ab7f4f7a1b 100644
--- a/tools/testing/selftests/bpf/progs/test_xdp_meta.c
+++ b/tools/testing/selftests/bpf/progs/test_xdp_meta.c
@@ -24,10 +24,10 @@
 bool test_pass;
 
 static const __u8 meta_want[META_SIZE] = {
-	0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
-	0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
-	0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
-	0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38,
+	0x49, 0x20, 0x63, 0x72, 0x6f, 0x73, 0x73, 0x65,
+	0x64, 0x20, 0x68, 0x6f, 0x6f, 0x6b, 0x73, 0x20,
+	0x26, 0x20, 0x6c, 0x69, 0x76, 0x65, 0x64, 0x20,
+	0x74, 0x6f, 0x20, 0x74, 0x65, 0x6c, 0x6c, 0x21,
 };
 
 static bool check_metadata(const char *file, int line, __u8 *meta_have)

-- 
2.43.0