Most scripts use uppercase variable TEST_NAME, but lowercase one are
used in userspace_pm.sh. To maintain consistency with other scripts,
this patch renames variable test_name to TEST_NAME:

    test_name -> TEST_NAME   in userspace_pm.sh

Signed-off-by: Geliang Tang <geliang.tang@linux.dev>
---
 tools/testing/selftests/net/mptcp/userspace_pm.sh | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/tools/testing/selftests/net/mptcp/userspace_pm.sh b/tools/testing/selftests/net/mptcp/userspace_pm.sh
index e78fcd3bff16..c9da970e5d24 100755
--- a/tools/testing/selftests/net/mptcp/userspace_pm.sh
+++ b/tools/testing/selftests/net/mptcp/userspace_pm.sh
@@ -54,7 +54,7 @@ sec=$(date +%s)
 rndh=$(printf %x "$sec")-$(mktemp -u XXXXXX)
 ns1="ns1-$rndh"
 ns2="ns2-$rndh"
-test_name=""
+TEST_NAME=""
 
 _printf() {
 	stdbuf -o0 -e0 printf "${@}"
@@ -68,9 +68,9 @@ print_title()
 # $1: test name
 print_test()
 {
-	test_name="${1}"
+	TEST_NAME="${1}"
 
-	_printf "%-63s" "${test_name}"
+	_printf "%-63s" "${TEST_NAME}"
 }
 
 print_results()
@@ -81,13 +81,13 @@ print_results()
 test_pass()
 {
 	print_results " OK "
-	mptcp_lib_result_pass "${test_name}"
+	mptcp_lib_result_pass "${TEST_NAME}"
 }
 
 test_skip()
 {
 	print_results "SKIP"
-	mptcp_lib_result_skip "${test_name}"
+	mptcp_lib_result_skip "${TEST_NAME}"
 }
 
 # $1: msg
@@ -100,7 +100,7 @@ test_fail()
 		_printf "\t%s\n" "${1}"
 	fi
 
-	mptcp_lib_result_fail "${test_name}"
+	mptcp_lib_result_fail "${TEST_NAME}"
 }
 
 # This function is used in the cleanup trap
-- 
2.35.3