netdev - [PATCH AUTOSEL 5.7 14/25] selftest: txtimestamp: fix net ns entry logic

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Message-Id: <20200727232345.717432-14-sashal@kernel.org>
Date:   Mon, 27 Jul 2020 19:23:34 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Paolo Pisati <paolo.pisati@...onical.com>,
        Willem de Bruijn <willemb@...gle.com>,
        "David S . Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>, netdev@...r.kernel.org,
        linux-kselftest@...r.kernel.org
Subject: [PATCH AUTOSEL 5.7 14/25] selftest: txtimestamp: fix net ns entry logic

From: Paolo Pisati <paolo.pisati@...onical.com>

[ Upstream commit b346c0c85892cb8c53e8715734f71ba5bbec3387 ]

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>
Acked-by: Willem de Bruijn <willemb@...gle.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 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 eea6f5193693f..31637769f59f6 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 $@
-- 
2.25.1