linux-kernel - Re: [PATCH] ARM: cpuidle: declare cpuidle_ops __read

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <2118361.tr3K3hSZxF@wuerfel>
Date:	Wed, 10 Aug 2016 10:57:57 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Jisheng Zhang <jszhang@...vell.com>, linux@...linux.org.uk,
	daniel.lezcano@...aro.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: cpuidle: declare cpuidle_ops __read_mostly

On Wednesday, August 10, 2016 4:49:57 PM CEST Jisheng Zhang wrote:
> diff --git a/arch/arm/kernel/cpuidle.c b/arch/arm/kernel/cpuidle.c
> index 7dccc96..762e0929 100644
> --- a/arch/arm/kernel/cpuidle.c
> +++ b/arch/arm/kernel/cpuidle.c
> @@ -19,7 +19,7 @@ extern struct of_cpuidle_method __cpuidle_method_of_table[];
>  static const struct of_cpuidle_method __cpuidle_method_of_table_sentinel
>         __used __section(__cpuidle_method_of_table_end);
>  
> -static struct cpuidle_ops cpuidle_ops[NR_CPUS];
> +static struct cpuidle_ops cpuidle_ops[NR_CPUS] __read_mostly;

Should this perhaps be percpu data instead?

	Arnd