rcu: Avoid sparse warnings in rcu_nocb_wake trace event

The event-tracing macros do not like bool tracing arguments, so this
commit makes them be of type char.  This change has the knock-on effect
of making it illegal to pass a pointer into one of these arguments, so
also change rcutiny's first call to trace_rcu_batch_end() to convert
from pointer to boolean, prefixing with "!!".

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index a087d82ed431..aca382266411 100644
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -591,17 +591,17 @@ TRACE_EVENT(rcu_invoke_kfree_callback,
 TRACE_EVENT(rcu_batch_end,
 
         TP_PROTO(const char *rcuname, int callbacks_invoked,
-                 bool cb, bool nr, bool iit, bool risk),
+                 char cb, char nr, char iit, char risk),
 
         TP_ARGS(rcuname, callbacks_invoked, cb, nr, iit, risk),
 
         TP_STRUCT__entry(
                 __field(const char *, rcuname)
                 __field(int, callbacks_invoked)
-                __field(bool, cb)
-                __field(bool, nr)
-                __field(bool, iit)
-                __field(bool, risk)
+                __field(char, cb)
+                __field(char, nr)
+                __field(char, iit)
+                __field(char, risk)
         ),
 
         TP_fast_assign(