Re: [PATCH bpf-next 1/3] bpf: Support for pointers beyond pkt_end.

2020-10-21 Thread kernel test robot
Hi Alexei, I love your patch! Perhaps something to improve: [auto build test WARNING on bpf-next/master] url: https://github.com/0day-ci/linux/commits/Alexei-Starovoitov/bpf-Pointers-beyond-packet-end/20201022-022139 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git ma

[PATCH bpf-next 1/3] bpf: Support for pointers beyond pkt_end.

2020-10-21 Thread Alexei Starovoitov
From: Alexei Starovoitov This patch adds the verifier support to recognize inlined branch conditions. The LLVM knows that the branch evaluates to the same value, but the verifier couldn't track it. Hence causing valid programs to be rejected. The potential LLVM workaround: https://reviews.llvm.or