[PATCH v2] app/test-pmd: fix tcp/udp cksum with padding data

[Ferruh Yigit]

On 12/7/2023 8:53 AM, Kaiwen Deng wrote:
> IEEE 802 packets may have a minimum size limit. The data fields
> should be padded when necessary. In some cases, the padding data
> is not zero. Testpmd does not trim these IP packets to the true
> length of the frame, so errors will occur when calculating TCP
> or UDP checksum.
> 
> This commit fixes this issue by triming IP packets to the true
> length of the frame in testpmd.
> 
> Fixes: 03d17e4d0179 ("app/testpmd: do not change IP addrs in checksum engine")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Kaiwen Deng <kaiwenx.deng at intel.com>
> 

I think decision was to fix 'rte_ipv4_udptcp_cksum_mbuf()' &
'rte_ipv6_udptcp_cksum_mbuf()'.