selftests: xsk: Make enums lower case

Make enums lower case as that is the standard. Also drop the
unnecessary TEST_MODE_UNCONFIGURED mode.
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20210825093722.10219-16-magnus.karlsson@gmail.com

tools/testing/selftests/bpf/xdpxceiver.c

@@ -105,14 +105,9 @@ static const u16 UDP_PORT2 = 2121;
 
 static void __exit_with_error(int error, const char *file, const char *func, int line)
 {
-	if (configured_mode == TEST_MODE_UNCONFIGURED) {
-		ksft_exit_fail_msg
-		("[%s:%s:%i]: ERROR: %d/\"%s\"\n", file, func, line, error, strerror(error));
-	} else {
-		ksft_test_result_fail
-		("[%s:%s:%i]: ERROR: %d/\"%s\"\n", file, func, line, error, strerror(error));
-		ksft_exit_xfail();
-	}
+	ksft_test_result_fail("[%s:%s:%i]: ERROR: %d/\"%s\"\n", file, func, line, error,
+			      strerror(error));
+	ksft_exit_xfail();
 }
 
 #define exit_with_error(error) __exit_with_error(error, __FILE__, __func__, __LINE__)

tools/testing/selftests/bpf/xdpxceiver.h

@@ -44,14 +44,13 @@
 
 #define print_verbose(x...) do { if (opt_verbose) ksft_print_msg(x); } while (0)
 
-enum TEST_MODES {
-	TEST_MODE_UNCONFIGURED = -1,
+enum test_mode {
 	TEST_MODE_SKB,
 	TEST_MODE_DRV,
 	TEST_MODE_MAX
 };
 
-enum TEST_TYPES {
+enum test_type {
 	TEST_TYPE_NOPOLL,
 	TEST_TYPE_POLL,
 	TEST_TYPE_TEARDOWN,
@@ -61,7 +60,7 @@ enum TEST_TYPES {
 	TEST_TYPE_MAX
 };
 
-enum STAT_TEST_TYPES {
+enum stat_test_type {
 	STAT_TEST_RX_DROPPED,
 	STAT_TEST_TX_INVALID,
 	STAT_TEST_RX_FULL,
@@ -69,7 +68,7 @@ enum STAT_TEST_TYPES {
 	STAT_TEST_TYPE_MAX
 };
 
-static int configured_mode = TEST_MODE_UNCONFIGURED;
+static int configured_mode;
 static u8 debug_pkt_dump;
 static u32 num_frames = DEFAULT_PKT_CNT / 4;
 static bool second_step;