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Message-ID: <20240126035816.3129296-7-boqun.feng@gmail.com>
Date: Thu, 25 Jan 2024 19:58:09 -0800
From: Boqun Feng <boqun.feng@...il.com>
To: linux-kernel@...r.kernel.org,
rcu@...r.kernel.org,
linux-doc@...r.kernel.org
Cc: Jonathan Corbet <corbet@....net>,
"Paul E. McKenney" <paulmck@...nel.org>,
kernel test robot <lkp@...el.com>,
Randy Dunlap <rdunlap@...radead.org>,
Frederic Weisbecker <frederic@...nel.org>
Subject: [PATCH 6/8] context_tracking: Fix kerneldoc headers for __ct_user_{enter,exit}()
From: "Paul E. McKenney" <paulmck@...nel.org>
Document the "state" parameter of both of these functions.
Reported-by: kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202312041922.YZCcEPYD-lkp@intel.com/
Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
Tested-by: Randy Dunlap <rdunlap@...radead.org>
Acked-by: Randy Dunlap <rdunlap@...radead.org>
Cc: Frederic Weisbecker <frederic@...nel.org>
---
kernel/context_tracking.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/kernel/context_tracking.c b/kernel/context_tracking.c
index 6ef0b35fc28c..70ae70d03823 100644
--- a/kernel/context_tracking.c
+++ b/kernel/context_tracking.c
@@ -458,6 +458,8 @@ static __always_inline void context_tracking_recursion_exit(void)
* __ct_user_enter - Inform the context tracking that the CPU is going
* to enter user or guest space mode.
*
+ * @state: userspace context-tracking state to enter.
+ *
* This function must be called right before we switch from the kernel
* to user or guest space, when it's guaranteed the remaining kernel
* instructions to execute won't use any RCU read side critical section
@@ -595,6 +597,8 @@ NOKPROBE_SYMBOL(user_enter_callable);
* __ct_user_exit - Inform the context tracking that the CPU is
* exiting user or guest mode and entering the kernel.
*
+ * @state: userspace context-tracking state being exited from.
+ *
* This function must be called after we entered the kernel from user or
* guest space before any use of RCU read side critical section. This
* potentially include any high level kernel code like syscalls, exceptions,
--
2.43.0
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