Messages in this thread Patch in this message | | | From | paulmck@kernel ... | Subject | [PATCH tip/core/rcu 5/5] rcu-tasks: Fix code-style issues | Date | Mon, 22 Jun 2020 17:24:43 -0700 |
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From: "Paul E. McKenney" <paulmck@kernel.org>
This commit declares trc_n_readers_need_end and trc_wait static and replaced a "&" with "&&". The "&" happened to work because the values are bool, but accidents waiting to happen and all that...
Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> --- kernel/rcu/tasks.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h index d5c003c..828f222 100644 --- a/kernel/rcu/tasks.h +++ b/kernel/rcu/tasks.h @@ -737,8 +737,8 @@ EXPORT_SYMBOL_GPL(rcu_trace_lock_map); #ifdef CONFIG_TASKS_TRACE_RCU -atomic_t trc_n_readers_need_end; // Number of waited-for readers. -DECLARE_WAIT_QUEUE_HEAD(trc_wait); // List of holdout tasks. +static atomic_t trc_n_readers_need_end; // Number of waited-for readers. +static DECLARE_WAIT_QUEUE_HEAD(trc_wait); // List of holdout tasks. // Record outstanding IPIs to each CPU. No point in sending two... static DEFINE_PER_CPU(bool, trc_ipi_to_cpu); @@ -845,7 +845,7 @@ static bool trc_inspect_reader(struct task_struct *t, void *arg) bool ofl = cpu_is_offline(cpu); if (task_curr(t)) { - WARN_ON_ONCE(ofl & !is_idle_task(t)); + WARN_ON_ONCE(ofl && !is_idle_task(t)); // If no chance of heavyweight readers, do it the hard way. if (!ofl && !IS_ENABLED(CONFIG_TASKS_TRACE_RCU_READ_MB)) -- 2.9.5
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