linux-kernel - [PATCH v2] selftest: txtimestamp: fix net ns entry logic

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Message-Id: <20200721161710.80797-1-paolo.pisati@canonical.com>
Date:   Tue, 21 Jul 2020 18:17:10 +0200
From:   Paolo Pisati <paolo.pisati@...onical.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Shuah Khan <shuah@...nel.org>,
        Willem de Bruijn <willemb@...gle.com>,
        Jian Yang <jianyang@...gle.com>
Cc:     netdev@...r.kernel.org, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2] selftest: txtimestamp: fix net ns entry logic

According to 'man 8 ip-netns', if `ip netns identify` returns an empty string,
there's no net namespace associated with current PID: fix the net ns entrance
logic.

Signed-off-by: Paolo Pisati <paolo.pisati@...onical.com>
---
 tools/testing/selftests/net/txtimestamp.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/txtimestamp.sh b/tools/testing/selftests/net/txtimestamp.sh
index eea6f5193693..31637769f59f 100755
--- a/tools/testing/selftests/net/txtimestamp.sh
+++ b/tools/testing/selftests/net/txtimestamp.sh
@@ -75,7 +75,7 @@ main() {
 	fi
 }
 
-if [[ "$(ip netns identify)" == "root" ]]; then
+if [[ -z "$(ip netns identify)" ]]; then
 	./in_netns.sh $0 $@
 else
 	main $@
-- 
2.27.0