linux-kernel - Re: [PATCH v2] irqchip/mbigen: stop printing kernel addresses

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Message-ID: <172a0767-284b-7d10-5c8a-1d4414aaad3e@huawei.com>
Date:   Tue, 18 Jun 2019 17:23:45 +0800
From:   Hanjun Guo <guohanjun@...wei.com>
To:     Kefeng Wang <wangkefeng.wang@...wei.com>,
        Marc Zyngier <marc.zyngier@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] irqchip/mbigen: stop printing kernel addresses

On 2019/6/18 17:15, Kefeng Wang wrote:
> After commit ad67b74d2469d9b8 ("printk: hash addresses printed with %p"),
> it will print "____ptrval____" instead of actual addresses when mbigen
> create domain fails,
> 
>   Hisilicon MBIGEN-V2 HISI0152:00: Failed to create mbi-gen@(____ptrval____) irqdomain
>   Hisilicon MBIGEN-V2: probe of HISI0152:00 failed with error -12
> 
> dev_xxx() helper contains the device info, HISI0152:00, which stands for
> mbigen ACPI HID and its UID, we can identify the failing probed mbigen,
> so just remove the printing "mgn_chip->base", and also add missing "\n".
> 
> Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
> ---
>  drivers/irqchip/irq-mbigen.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/irqchip/irq-mbigen.c b/drivers/irqchip/irq-mbigen.c
> index 98b6e1d4b1a6..c0f65ea0ae0f 100644
> --- a/drivers/irqchip/irq-mbigen.c
> +++ b/drivers/irqchip/irq-mbigen.c
> @@ -355,8 +355,7 @@ static int mbigen_device_probe(struct platform_device *pdev)
>  		err = -EINVAL;
>  
>  	if (err) {
> -		dev_err(&pdev->dev, "Failed to create mbi-gen@%p irqdomain",
> -			mgn_chip->base);
> +		dev_err(&pdev->dev, "Failed to create mbi-gen irqdomain\n");
>  		return err;

Reviewed-by: Hanjun Guo <guohanjun@...wei.com>