[PATCH v9 3/4] kasan: Add report for async mode

Vincenzo Frascino vincenzo.frascino at arm.com
Fri Jan 29 13:46:38 EST 2021


Hi Andrey,

On 1/29/21 6:16 PM, Vincenzo Frascino wrote:
> What I meant is instead of:
> 
> if (addr) trace_error_report_end(...);
> 
> you might want to do:
> 
> if (!IS_ENABLED(CONFIG_KASAN_HW_TAGS)) trace_error_report_end(...);
> 
> because, could make sense to trace 0 in other cases?
> 
> I could not find the implementation of trace_error_report_end() hence I am not
> really sure on what it does.

I figured it out how trace_error_report_end() works. And in doing that I
realized that the problem is sync vs async, hence I agree with what you are
proposing:

if (addr) trace_error_report_end(...);

I will post v10 shortly. If we want to trace the async mode we can improve it in
-rc1.

-- 
Regards,
Vincenzo



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