linux-kernel - [PATCH net v3 2/2] connector/cn_proc: Use task_is_in_init_pid

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Message-Id: <20220126050427.605628-3-leo.yan@linaro.org>
Date:   Wed, 26 Jan 2022 13:04:27 +0800
From:   Leo Yan <leo.yan@...aro.org>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Leon Romanovsky <leon@...nel.org>,
        Balbir Singh <bsingharora@...il.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Leo Yan <leo.yan@...aro.org>
Subject: [PATCH net v3 2/2] connector/cn_proc: Use task_is_in_init_pid_ns()

This patch replaces open code with task_is_in_init_pid_ns() to check if
a task is in root PID namespace.

Signed-off-by: Leo Yan <leo.yan@...aro.org>
Acked-by: Balbir Singh <bsingharora@...il.com>
---
 drivers/connector/cn_proc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/connector/cn_proc.c b/drivers/connector/cn_proc.c
index 646ad385e490..ccac1c453080 100644
--- a/drivers/connector/cn_proc.c
+++ b/drivers/connector/cn_proc.c
@@ -358,7 +358,7 @@ static void cn_proc_mcast_ctl(struct cn_msg *msg,
 	 * other namespaces.
 	 */
 	if ((current_user_ns() != &init_user_ns) ||
-	    (task_active_pid_ns(current) != &init_pid_ns))
+	    !task_is_in_init_pid_ns(current))
 		return;
 
 	/* Can only change if privileged. */
-- 
2.25.1