Re: [RFC 2/2] kvm: eventfd: detect integer overflow using check_*_overflow

[Sasha Levin]

On 11/26/2014 12:50 PM, Andrey Ryabinin wrote:
> 2014-11-26 17:00 GMT+03:00 Sasha Levin <sasha.levin@xxxxxxxxxx>:
>> > Detect integer overflows using safe operations rather than relying on
>> > undefined behaviour.
>> >
> Unsigned overflow is defined.
> args->addr and args->len  both unsigned, so there is no UB here.
> 

Good point. Do you think there's an advantage in using GCC's overflow
checker in this case?


Thanks,
Sasha
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