Thread (6 messages) 6 messages, 2 authors, 2021-12-02

[PATCH bpf-next v4 0/2] clean-up for BPF_LOG_KERNEL log level

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From: Hou Tao <hidden>
Date: 2021-12-01 07:19:44
Also in: bpf

Revision v4 of 3 in this series.

Revisions (3)
  1. v2 [diff vs current]
  2. v3 [diff vs current]
  3. v4 current
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:
v4:
  * rebased on bpf-next
  * add Acked-by tags

v3: https://www.spinics.net/lists/bpf/msg48992.html
  * 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(-)

-- 
2.29.2
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