On 2019/6/18 15:48, Marc Zyngier wrote:
> Hi Kefeng,
>
> On Tue, 18 Jun 2019 04:22:02 +0100,
> Kefeng Wang <[email protected]> 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
>>
>> Instead of changing the print to "%px", and leaking kernel addresses,
>> just remove the print completely.
>>
>> Signed-off-by: Kefeng Wang <[email protected]>
>> ---
>> 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..d0cf596c801b 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");
>
> The alternative would be to print res as a resource, which would still
> help identifying the offending device by printing its physical
> layout, and still not reveal much.
It's better to print res to show the physical layout, and add missing "\n",
will resend v2.
Thanks.
>
> Just let me know what you prefer.
>
> Thanks,
>
> M.
>
>> return err;
>> }
>>
>> --
>> 2.20.1
>>
>
