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| author | Paul Chaignon <paul.chaignon@gmail.com> | 2025-04-08 11:00:51 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2025-04-09 20:07:31 -0700 |
| commit | 5a15a050df714959f0d5a57ac3201bd1c6594984 (patch) | |
| tree | 1d4e09bcdc57f7354bfaf0930eb9a8a00aee7332 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | b412fd6bcc4c1696b0674434f56b198950c0e2bf (diff) | |
bpf: Clarify the meaning of BPF_F_PSEUDO_HDR
In the bpf_l4_csum_replace helper, the BPF_F_PSEUDO_HDR flag should only
be set if the modified header field is part of the pseudo-header.
If you modify for example the UDP ports and pass BPF_F_PSEUDO_HDR,
inet_proto_csum_replace4 will update skb->csum even though it shouldn't
(the port and the UDP checksum updates null each other).
Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com>
Link: https://lore.kernel.org/r/5126ef84ba75425b689482cbc98bffe75e5d8ab0.1744102490.git.paul.chaignon@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions