Re: [PATCH net] net: netpoll: Initialize UDP checksum field before checksumming

[Simon Horman]

On Fri, Jun 20, 2025 at 11:48:55AM -0700, Breno Leitao wrote:
> commit f1fce08e63fe ("netpoll: Eliminate redundant assignment") removed
> the initialization of the UDP checksum, which was wrong and broke
> netpoll IPv6 transmission due to bad checksumming.
> 
> udph->check needs to be set before calling csum_ipv6_magic().
> 
> Fixes: f1fce08e63fe ("netpoll: Eliminate redundant assignment")
> Signed-off-by: Breno Leitao <leitao@xxxxxxxxxx>

Reviewed-by: Simon Horman <horms@xxxxxxxxxx>