From: Geliang Tang <[email protected]>

tc are used in some test scripts: mptcp_connect.sh, mptcp_join.sh and
simult_flows.sh. It makes sense to check if tc is installed before running
these scripts, just like other tools. So this patch add 'tc' check for
mptcp_lib_check_tools(), and check it in these test scripts.

Signed-off-by: Geliang Tang <[email protected]>
Reviewed-by: Matthieu Baerts (NGI0) <[email protected]>
Signed-off-by: Matthieu Baerts (NGI0) <[email protected]>
---
 tools/testing/selftests/net/mptcp/mptcp_connect.sh | 2 +-
 tools/testing/selftests/net/mptcp/mptcp_join.sh    | 2 +-
 tools/testing/selftests/net/mptcp/mptcp_lib.sh     | 6 ++++++
 tools/testing/selftests/net/mptcp/simult_flows.sh  | 2 +-
 4 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.sh 
b/tools/testing/selftests/net/mptcp/mptcp_connect.sh
index 4131f3263a48..b77fb7065bfb 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_connect.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect.sh
@@ -147,7 +147,7 @@ cleanup()
 
 mptcp_lib_check_mptcp
 mptcp_lib_check_kallsyms
-mptcp_lib_check_tools ip
+mptcp_lib_check_tools ip tc
 
 sin=$(mktemp)
 sout=$(mktemp)
diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh 
b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index e4403236f655..5a95798eb40a 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -142,7 +142,7 @@ init() {
 
        mptcp_lib_check_mptcp
        mptcp_lib_check_kallsyms
-       mptcp_lib_check_tools ip ss "${iptables}" "${ip6tables}"
+       mptcp_lib_check_tools ip tc ss "${iptables}" "${ip6tables}"
 
        sin=$(mktemp)
        sout=$(mktemp)
diff --git a/tools/testing/selftests/net/mptcp/mptcp_lib.sh 
b/tools/testing/selftests/net/mptcp/mptcp_lib.sh
index d529b4b37af8..1fa05405f65e 100644
--- a/tools/testing/selftests/net/mptcp/mptcp_lib.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_lib.sh
@@ -384,6 +384,12 @@ mptcp_lib_check_tools() {
                                exit ${KSFT_SKIP}
                        fi
                        ;;
+               "tc")
+                       if ! tc -help &> /dev/null; then
+                               mptcp_lib_pr_skip "Could not run test without 
tc tool"
+                               exit ${KSFT_SKIP}
+                       fi
+                       ;;
                "ss")
                        if ! ss -h | grep -q MPTCP; then
                                mptcp_lib_pr_skip "ss tool does not support 
MPTCP"
diff --git a/tools/testing/selftests/net/mptcp/simult_flows.sh 
b/tools/testing/selftests/net/mptcp/simult_flows.sh
index 1b2366220388..497141c49ccd 100755
--- a/tools/testing/selftests/net/mptcp/simult_flows.sh
+++ b/tools/testing/selftests/net/mptcp/simult_flows.sh
@@ -45,7 +45,7 @@ cleanup()
 }
 
 mptcp_lib_check_mptcp
-mptcp_lib_check_tools ip
+mptcp_lib_check_tools ip tc
 
 #  "$ns1"              ns2                    ns3
 #     ns1eth1    ns2eth1   ns2eth3      ns3eth1

-- 
2.43.0


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