[PATCH v3] vhost: fix build issues with GCC 12

[Maxime Coquelin]

Hi Stephen,

On 10/6/22 02:01, Stephen Hemminger wrote:
> On Wed,  5 Oct 2022 22:35:24 +0200
> Maxime Coquelin <maxime.coquelin at redhat.com> wrote:
> 
>> In practice, it would never happen since 'pkt->pkt_len' is
>> unlikely to be close to UINT32_MAX, but let's just change
>> 'size' to uint64_t to make the compiler happy without
>> having to add runtime checks.
> 
> 
> Would the standard typedef size_t work since that is what sizeof() returns.
> 

I'm not sure it would not create issues on 32 bits architectures build
given size_t is 32bits in this case if I'm not mistaken, as it adds
something to a u32, so it could wrap to 0.