Subject: Re: [PATCH v1 net-next] selftest: net: Use port outside of the default ip_local_ports in csum.c.

From: Jakub Kicinski <[email-masked]>
Date: Sun, 12 Apr 2026 09:47:29 -0700

On Sat, 11 Apr 2026 15:18:56 -0400 Willem de Bruijn wrote:
> > diff --git a/tools/testing/selftests/net/lib/csum.c b/tools/testing/selftests/net/lib/csum.c
> > index e28884ce3ab3..4e044689bc37 100644
> > --- a/tools/testing/selftests/net/lib/csum.c
> > +++ b/tools/testing/selftests/net/lib/csum.c
> > @@ -105,9 +105,9 @@ static char *cfg_mac_src;
> >  static int cfg_proto = IPPROTO_UDP;
> >  static int cfg_payload_char = 'a';
> >  static int cfg_payload_len = 100;
> > -static uint16_t cfg_port_dst = 34000;  
> 
> This is paired with wait_port_listen(3400, .. in
> tools/testing/selftests/drivers/net/hw/csum.py

FWIW I can confirm that this caused the HW testing in NIPA to fail
the csum test since Friday.