[PATCH] app/testpmd: fix raw encap of GENEVE option

[Ferruh Yigit]

On 2/24/2022 7:02 AM, Bing Zhao wrote:
> The structure "rte_flow_item_geneve_opt" is not a protocol header of
> geneve tunnel option from rfc8926. The field "data" is a pointer
> which points to the actual variable-length option data. So the
> structure is not packed.
> 
> There is 4 bytes hole before the pointer in a 64-bit system. The
> option header is just 4 bytes. When using offsetof() to get the
> fixed part's size of option header, the wrong value 8 was got. When
> constructing the encap header, a wrong size and offset was used due
> to this hole.
> 
> With this commit, the fixed part's size is calculated explicitly
> based on all fields.
> 
> Fixes: 55c074f3ba1d ("app/testpmd: support GENEVE option item")
> Cc: viacheslavo at nvidia.com
> Cc: stable at dpdk.org
> 
> Signed-off-by: Bing Zhao <bingz at nvidia.com>
> Reviewed-by: Viacheslav Ovsiienko <viacheslavo at nvidia.com>

Applied to dpdk-next-net/main, thanks.