Subject: Re: [PATCH net-next v3 5/5] selftests: net: add veth BQL stress test

From: Breno Leitao <[email-masked]>
Date: Fri, 1 May 2026 01:42:47 -0700

On Wed, Apr 29, 2026 at 07:20:32PM +0200, [email-masked] wrote:
> +compile_tools() {
> +    echo "--- Compiling UDP flood tool ---"
> +cat > "$TMPDIR"/udp_flood.c << 'CEOF'

The biggest structural issue: the test ships ~250 lines of C source as
heredocs and shells out to gcc at runtime to build them. This is not
how selftests normally work.