Re: [PATCH net-next v2 7/7] selftests: net: Add IPv6 support to netconsole basic tests

On Wed, Jul 02, 2025 at 03:06:39AM -0700, Breno Leitao wrote:

Add IPv6 support to the netconsole basic functionality tests by:

• Introducing separate IPv4 and IPv6 address variables (SRCIP4/SRCIP6, DSTIP4/DSTIP6) to replace the single SRCIP/DSTIP variables
• Adding select_ipv4_or_ipv6() function to choose protocol version
• Updating socat configuration to use UDP6-LISTEN for IPv6 tests
• Adding wait_for_port() wrapper to handle protocol-specific port waiting
• Expanding test matrix to run both basic and extended formats against both IPv4 and IPv6 protocols
• Improving cleanup to kill any remaining socat processes
• Adding sleep delays for better IPv6 packet handling reliability

The test now validates netconsole functionality across both IP versions, improving test coverage for dual-stack network environments.

This test would avoid the regression fixed by commit f59902070269 ("net: netpoll: Initialize UDP checksum field before checksumming")

Signed-off-by: Breno Leitao leitao@debian.org

Reviewed-by: Simon Horman horms@kernel.org