Commit 3b239b30 authored by Paul E. McKenney's avatar Paul E. McKenney Committed by Boqun Feng
Browse files

context_tracking: Fix kerneldoc headers for __ct_user_{enter,exit}() 



Document the "state" parameter of both of these functions.

Reported-by: default avatarkernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202312041922.YZCcEPYD-lkp@intel.com/


Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
Tested-by: default avatarRandy Dunlap <rdunlap@infradead.org>
Acked-by: default avatarRandy Dunlap <rdunlap@infradead.org>
Cc: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: default avatarBoqun Feng <boqun.feng@gmail.com>
parent 60071659

kernel/context_tracking.c

+4 −0
Original line number Diff line number Diff line
@@ -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,