[PATCH v2] net: fix return type of IPv6 L4 packet checksum

[Thomas Monjalon]

06/04/2023 11:49, eagostini at nvidia.com:
> From: Elena Agostini <eagostini at nvidia.com>
> 
> Function returns 0 or -1 but the return type is uint16_t.
> 
> Fixes: d178f693bbfe ("net: add UDP/TCP checksum in mbuf segments")
> Cc: xiaoyun.li at intel.com
> 
> Signed-off-by: Elena Agostini <eagostini at nvidia.com>

The title should be about IPv4, not IPv6.