From: "Paul E. McKenney" <paulmck@kernel.org>
To: Jules Irenge <jbi.octave@gmail.com>
Cc: julia.lawall@lip6.fr, boqun.feng@gmail.com,
Josh Triplett <josh@joshtriplett.org>,
Steven Rostedt <rostedt@goodmis.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Lai Jiangshan <jiangshanlai@gmail.com>,
Joel Fernandes <joel@joelfernandes.org>,
"open list:READ-COPY UPDATE (RCU)" <rcu@vger.kernel.org>,
open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 06/10] rcu: Replace assigned pointer ret value by corresponding boolean value
Date: Mon, 30 Mar 2020 14:12:57 -0700 [thread overview]
Message-ID: <20200330211257.GP19865@paulmck-ThinkPad-P72> (raw)
In-Reply-To: <20200327212358.5752-7-jbi.octave@gmail.com>
On Fri, Mar 27, 2020 at 09:23:53PM +0000, Jules Irenge wrote:
> Coccinelle reports warnings at rcu_read_lock_held_common()
>
> WARNING: Assignment of 0/1 to bool variable
>
> To fix this,
> the assigned pointer ret values are replaced by corresponding boolean value.
> Given that ret is a pointer of bool type
>
> Signed-off-by: Jules Irenge <jbi.octave@gmail.com>
Queued for further review and testing, thank you!
Thanx, Paul
> ---
> kernel/rcu/update.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
> index 6c4b862f57d6..24fb64fd1a1a 100644
> --- a/kernel/rcu/update.c
> +++ b/kernel/rcu/update.c
> @@ -98,15 +98,15 @@ module_param(rcu_normal_after_boot, int, 0);
> static bool rcu_read_lock_held_common(bool *ret)
> {
> if (!debug_lockdep_rcu_enabled()) {
> - *ret = 1;
> + *ret = true;
> return true;
> }
> if (!rcu_is_watching()) {
> - *ret = 0;
> + *ret = false;
> return true;
> }
> if (!rcu_lockdep_current_cpu_online()) {
> - *ret = 0;
> + *ret = false;
> return true;
> }
> return false;
> --
> 2.25.1
>
next prev parent reply other threads:[~2020-03-30 21:13 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <0/10>
[not found] ` <20200327212358.5752-1-jbi.octave@gmail.com>
2020-03-27 21:23 ` [PATCH 01/10] locking/rtmutex: Remove Comparison to bool Jules Irenge
2020-03-28 11:28 ` Thomas Gleixner
2020-03-28 12:02 ` Jules Irenge
2020-03-28 12:44 ` Thomas Gleixner
2020-03-27 21:23 ` [PATCH 02/10] sched/topology: Replace 1 and 0 by boolean value Jules Irenge
2020-03-30 11:27 ` Peter Zijlstra
2020-04-03 16:23 ` Jules Irenge
2020-03-27 21:23 ` [PATCH 03/10] cpu: Remove Comparison to bool Jules Irenge
2020-03-28 11:29 ` Thomas Gleixner
2020-03-27 21:23 ` [PATCH 04/10] irq: Replace 1 by true Jules Irenge
2020-03-27 21:23 ` [PATCH 05/10] softirq: Replace BUG() after if statement with BUG_ON Jules Irenge
2020-03-28 11:22 ` Thomas Gleixner
2020-03-27 21:23 ` [PATCH 06/10] rcu: Replace assigned pointer ret value by corresponding boolean value Jules Irenge
2020-03-30 21:12 ` Paul E. McKenney [this message]
2020-03-27 21:23 ` [PATCH 07/10] sched/fair: Replace 1 and 0 by " Jules Irenge
2020-03-30 11:29 ` Peter Zijlstra
2020-03-27 21:23 ` [PATCH 08/10] trace: Replace printk and WARN_ON with WARN Jules Irenge
2020-03-27 21:23 ` [PATCH 09/10] kernel/sysctl.c: Replace 1 and 0 by corresponding boolean value Jules Irenge
2020-03-28 21:24 ` Kees Cook
2020-03-27 21:23 ` [PATCH 10/10] trace: Replace printk and WARN_ON with WARN Jules Irenge
2020-03-27 22:51 ` Steven Rostedt
2020-03-28 12:00 ` Jules Irenge
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