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| -rw-r--r-- | Documentation/bpf/standardization/instruction-set.rst | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/Documentation/bpf/standardization/instruction-set.rst b/Documentation/bpf/standardization/instruction-set.rst index 45cffe94c752..f3269d6dd5e0 100644 --- a/Documentation/bpf/standardization/instruction-set.rst +++ b/Documentation/bpf/standardization/instruction-set.rst @@ -658,6 +658,7 @@ Legacy BPF Packet access instructions BPF previously introduced special instructions for access to packet data that were carried over from classic BPF. These instructions used an instruction class of BPF_LD, a size modifier of BPF_W, BPF_H, or BPF_B, and a -mode modifier of BPF_ABS or BPF_IND. However, these instructions are -deprecated and should no longer be used. All legacy packet access -instructions belong to the "legacy" conformance group. +mode modifier of BPF_ABS or BPF_IND. The 'dst_reg' and 'offset' fields were +set to zero, and 'src_reg' was set to zero for BPF_ABS. However, these +instructions are deprecated and should no longer be used. All legacy packet +access instructions belong to the "legacy" conformance group. |