[PATCH 5.15.y] selftests: mptcp: connect: also cover alt modes

[Sasha Levin <sashal@kernel.org>]

From: "Matthieu Baerts (NGI0)" <matttbe@kernel.org>

[ Upstream commit 37848a456fc38c191aedfe41f662cc24db8c23d9 ]

The "mmap" and "sendfile" alternate modes for mptcp_connect.sh/.c are
available from the beginning, but only tested when mptcp_connect.sh is
manually launched with "-m mmap" or "-m sendfile", not via the
kselftests helpers.

The MPTCP CI was manually running "mptcp_connect.sh -m mmap", but not
"-m sendfile". Plus other CIs, especially the ones validating the stable
releases, were not validating these alternate modes.

To make sure these modes are validated by these CIs, add two new test
programs executing mptcp_connect.sh with the alternate modes.

Fixes: 048d19d444be ("mptcp: add basic kselftest for mptcp")
Cc: stable@vger.kernel.org
Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250715-net-mptcp-sft-connect-alt-v2-1-8230ddd82454@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
[ Drop userspace_pm.sh from TEST_PROGS ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/net/mptcp/Makefile                  | 3 ++-
 tools/testing/selftests/net/mptcp/mptcp_connect_mmap.sh     | 5 +++++
 tools/testing/selftests/net/mptcp/mptcp_connect_sendfile.sh | 5 +++++
 3 files changed, 12 insertions(+), 1 deletion(-)
 create mode 100755 tools/testing/selftests/net/mptcp/mptcp_connect_mmap.sh
 create mode 100755 tools/testing/selftests/net/mptcp/mptcp_connect_sendfile.sh

diff --git a/tools/testing/selftests/net/mptcp/Makefile b/tools/testing/selftests/net/mptcp/Makefile
index 1db5f507d983..ffae6cc66e28 100644
--- a/tools/testing/selftests/net/mptcp/Makefile
+++ b/tools/testing/selftests/net/mptcp/Makefile
@@ -5,7 +5,8 @@ KSFT_KHDR_INSTALL := 1
 
 CFLAGS =  -Wall -Wl,--no-as-needed -O2 -g  -I$(top_srcdir)/usr/include
 
-TEST_PROGS := mptcp_connect.sh pm_netlink.sh mptcp_join.sh diag.sh \
+TEST_PROGS := mptcp_connect.sh mptcp_connect_mmap.sh mptcp_connect_sendfile.sh \
+	      pm_netlink.sh mptcp_join.sh diag.sh \
 	      simult_flows.sh mptcp_sockopt.sh
 
 TEST_GEN_FILES = mptcp_connect pm_nl_ctl
diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect_mmap.sh b/tools/testing/selftests/net/mptcp/mptcp_connect_mmap.sh
new file mode 100755
index 000000000000..5dd30f9394af
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect_mmap.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+MPTCP_LIB_KSFT_TEST="$(basename "${0}" .sh)" \
+	"$(dirname "${0}")/mptcp_connect.sh" -m mmap "${@}"
diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect_sendfile.sh b/tools/testing/selftests/net/mptcp/mptcp_connect_sendfile.sh
new file mode 100755
index 000000000000..1d16fb1cc9bb
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect_sendfile.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+MPTCP_LIB_KSFT_TEST="$(basename "${0}" .sh)" \
+	"$(dirname "${0}")/mptcp_connect.sh" -m sendfile "${@}"
-- 
2.39.5