srcu: Fix kernel-doc missing notation

mainline inclusion
from mainline-5.0-rc1
commit f3e763c3e544b73ae5c4a3842cedb9ff6ca37715
category: bugfix
bugzilla: 5552
CVE: NA

---------------------------

Fix kernel-doc warnings for missing parameter descriptions:

../include/linux/srcu.h:175: warning: Function parameter or member 'p' not described in 'srcu_dereference_notrace'
../include/linux/srcu.h:175: warning: Function parameter or member 'sp' not described in 'srcu_dereference_notrace'

Fixes: 0b764a6e ("srcu: Add notrace variant of srcu_dereference")
Signed-off-by: NRandy Dunlap <rdunlap@infradead.org>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: NJason Yan <yanaijie@huawei.com>
Reviewed-by: Nzhengbin <zhengbin13@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

include/linux/srcu.h

@@ -171,6 +171,9 @@ static inline int srcu_read_lock_held(const struct srcu_struct *sp)
 
 /**
  * srcu_dereference_notrace - no tracing and no lockdep calls from here
+ * @p: the pointer to fetch and protect for later dereferencing
+ * @sp: pointer to the srcu_struct, which is used to check that we
+ *	really are in an SRCU read-side critical section.
  */
 #define srcu_dereference_notrace(p, sp) srcu_dereference_check((p), (sp), 1)