mbox series

[bpf-next,v3,0/2] clean-up for BPF_LOG_KERNEL log level

Message ID 20211102101536.2958763-1-houtao1@huawei.com (mailing list archive)
Headers show
Series clean-up for BPF_LOG_KERNEL log level | expand

Message

Hou Tao Nov. 2, 2021, 10:15 a.m. UTC
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(-)

Comments

Martin KaFai Lau Nov. 2, 2021, 5:51 p.m. UTC | #1
On Tue, Nov 02, 2021 at 06:15:34PM +0800, Hou Tao wrote:
> 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().
Acked-by: Martin KaFai Lau <kafai@fb.com>
Hou Tao Nov. 30, 2021, 11:48 a.m. UTC | #2
Hi Alexei,

Could you please pick the patchset for v5.16 ?

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(-)
>
Alexei Starovoitov Nov. 30, 2021, 7:32 p.m. UTC | #3
On Tue, Nov 30, 2021 at 3:48 AM Hou Tao <houtao1@huawei.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(-)
> >
>