netdev - Re: [PATCH bpf-next v3 0/2] clean-up for BPF_LOG

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Message-ID: <CAADnVQJCBnxOoVC9H=73OvKFwTUv5+aKCLix25eU1Kg6pOkXtQ@mail.gmail.com>
Date:   Tue, 30 Nov 2021 11:32:54 -0800
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Hou Tao <houtao1@...wei.com>
Cc:     Alexei Starovoitov <ast@...nel.org>,
        Martin KaFai Lau <kafai@...com>, Yonghong Song <yhs@...com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Network Development <netdev@...r.kernel.org>,
        bpf <bpf@...r.kernel.org>
Subject: Re: [PATCH bpf-next v3 0/2] clean-up for BPF_LOG_KERNEL log level

On Tue, Nov 30, 2021 at 3:48 AM Hou Tao <houtao1@...wei.com> wrote:
>
> Hi Alexei,
>
> Could you please pick the patchset for v5.16 ?

Sorry it got lost in patchwork.
Please resubmit.

> On 11/2/2021 6:15 PM, Hou Tao wrote:
> > Hi,
> >
> > There are just two clean-up patches for BPF_LOG_KERNEL log level:
> > patch #1 fixes the possible extra newline for bpf_log() and removes
> > the unnecessary calculation and truncation, and patch #2 disallows
> > BPF_LOG_KERNEL log level for bpf_btf_load().
> >
> > Comments are welcome.
> >
> > Regards,
> > Tao
> >
> > Change Log:
> > v3:
> >   * rebased on bpf-next
> >   * address comments from Daniel Borkmann:
> >     patch #1: add prefix "BPF: " instead of "BPF:" for error message
> >     patch #2: remove uncessary parenthesis, keep the max buffer length
> >               setting of btf verifier, and add Fixes tag.
> >
> > v2: https://www.spinics.net/lists/bpf/msg48809.html
> >   * rebased on bpf-next
> >   * patch #1: add a trailing newline if needed (suggested by Martin)
> >   * add patch #2
> >
> > v1: https://www.spinics.net/lists/bpf/msg48550.html
> >
> > Hou Tao (2):
> >   bpf: clean-up bpf_verifier_vlog() for BPF_LOG_KERNEL log level
> >   bpf: disallow BPF_LOG_KERNEL log level for bpf(BPF_BTF_LOAD)
> >
> >  include/linux/bpf_verifier.h |  7 +++++++
> >  kernel/bpf/btf.c             |  3 +--
> >  kernel/bpf/verifier.c        | 16 +++++++++-------
> >  3 files changed, 17 insertions(+), 9 deletions(-)
> >
>