linux-kernel - Re: [PATCH v2 5/5] rcu/tree: Remove superfluous return from void call

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Message-ID: <96b57ee8-0dc3-4f07-bb6c-3d7c7556deb9@paulmck-laptop>
Date:   Sat, 29 Jul 2023 15:19:18 -0700
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     "Joel Fernandes (Google)" <joel@...lfernandes.org>
Cc:     linux-kernel@...r.kernel.org, rcu@...r.kernel.org,
        Frederic Weisbecker <frederic@...nel.org>,
        Neeraj Upadhyay <quic_neeraju@...cinc.com>,
        Josh Triplett <josh@...htriplett.org>,
        Boqun Feng <boqun.feng@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        Zqiang <qiang.zhang1211@...il.com>
Subject: Re: [PATCH v2 5/5] rcu/tree: Remove superfluous return from void
 call_rcu* functions

On Sat, Jul 29, 2023 at 02:27:36PM +0000, Joel Fernandes (Google) wrote:
> The return keyword is not needed here.
> 
> Signed-off-by: Joel Fernandes (Google) <joel@...lfernandes.org>

Odd that this is allowed.  ;-)

I took 1, 2, and 5, thank you!  It would still be good to get Frederic's
eyes on 3 and 4.

							Thanx, Paul

> ---
>  kernel/rcu/tree.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
> index cb1caefa8bd0..7c79480bfaa0 100644
> --- a/kernel/rcu/tree.c
> +++ b/kernel/rcu/tree.c
> @@ -2713,7 +2713,7 @@ __call_rcu_common(struct rcu_head *head, rcu_callback_t func, bool lazy_in)
>   */
>  void call_rcu_hurry(struct rcu_head *head, rcu_callback_t func)
>  {
> -	return __call_rcu_common(head, func, false);
> +	__call_rcu_common(head, func, false);
>  }
>  EXPORT_SYMBOL_GPL(call_rcu_hurry);
>  #endif
> @@ -2764,7 +2764,7 @@ EXPORT_SYMBOL_GPL(call_rcu_hurry);
>   */
>  void call_rcu(struct rcu_head *head, rcu_callback_t func)
>  {
> -	return __call_rcu_common(head, func, IS_ENABLED(CONFIG_RCU_LAZY));
> +	__call_rcu_common(head, func, IS_ENABLED(CONFIG_RCU_LAZY));
>  }
>  EXPORT_SYMBOL_GPL(call_rcu);
>  
> -- 
> 2.41.0.487.g6d72f3e995-goog
>