linux-kernel - Re: [PATCH] irqchip: renesas-rzg2l: Reorder function calls in rzg2l_irqc_irq

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]

Date: Mon, 10 Jun 2024 10:34:58 +0300
From: claudiu beznea <claudiu.beznea@...on.dev>
To: Prabhakar <prabhakar.csengg@...il.com>,
 Geert Uytterhoeven <geert+renesas@...der.be>,
 Thomas Gleixner <tglx@...utronix.de>
Cc: linux-kernel@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
 Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
 Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: Re: [PATCH] irqchip: renesas-rzg2l: Reorder function calls in
 rzg2l_irqc_irq_disable()



On 06.06.2024 22:48, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> 
> The order of function calls in the disable operation should be the reverse
> of that in the enable operation. Thus, reorder the function calls to first
> disable the parent IRQ chip before disabling the TINT IRQ.
> 
> Reported-by: Geert Uytterhoeven <geert+renesas@...der.be>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

Tested-by: Claudiu Beznea <claudiu.beznea.uj@...renesas.com> # on RZ/G3S

> ---
>  drivers/irqchip/irq-renesas-rzg2l.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/irqchip/irq-renesas-rzg2l.c b/drivers/irqchip/irq-renesas-rzg2l.c
> index 861a0e5a3e97..693ff285ca2c 100644
> --- a/drivers/irqchip/irq-renesas-rzg2l.c
> +++ b/drivers/irqchip/irq-renesas-rzg2l.c
> @@ -271,8 +271,8 @@ static void rzg2l_tint_irq_endisable(struct irq_data *d, bool enable)
>  
>  static void rzg2l_irqc_irq_disable(struct irq_data *d)
>  {
> -	rzg2l_tint_irq_endisable(d, false);
>  	irq_chip_disable_parent(d);
> +	rzg2l_tint_irq_endisable(d, false);
>  }
>  
>  static void rzg2l_irqc_irq_enable(struct irq_data *d)