From: "Paul E. McKenney" <paulmck@xxxxxxxxxx> Document the "state" parameter of both of these functions. Reported-by: kernel test robot <lkp@xxxxxxxxx> Closes: https://lore.kernel.org/oe-kbuild-all/202312041922.YZCcEPYD-lkp@xxxxxxxxx/ Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx> Tested-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Acked-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Cc: Frederic Weisbecker <frederic@xxxxxxxxxx> --- 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
