Re: [PATCH v5 4/6] arm64: mte: Enable async tag check fault

[Vincenzo Frascino]

On 1/21/21 5:38 PM, Andrey Konovalov wrote:
>> +       if (unlikely(tfsr_el1 & SYS_TFSR_EL1_TF1)) {
>> +               /*
>> +                * Note: isb() is not required after this direct write
>> +                * because there is no indirect read subsequent to it
>> +                * (per ARM DDI 0487F.c table D13-1).
>> +                */
>> +               write_sysreg_s(0, SYS_TFSR_EL1);
>> +
>> +               kasan_report_async();
> Do we need a static bool reported like in do_tag_recovery() here?
> 

I would say not because async mode does not get disabled after the first fault.

-- 
Regards,
Vincenzo