Commit d2e04b9d authored by Lukas Bulwahn's avatar Lukas Bulwahn Committed by Alexei Starovoitov
Browse files

docs, bpf: Add minimal markup to address doc warning



Commit 91c960b0 ("bpf: Rename BPF_XADD and prepare to encode other
atomics in .imm") modified the BPF documentation, but missed some ReST
markup.

Hence, make htmldocs warns on Documentation/networking/filter.rst:1053:

  WARNING: Inline emphasis start-string without end-string.

Add some minimal markup to address this warning.

Fixes: 91c960b0 ("bpf: Rename BPF_XADD and prepare to encode other atomics in .imm")
Signed-off-by: default avatarLukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Acked-by: default avatarBrendan Jackman <jackmanb@google.com>
Link: https://lore.kernel.org/bpf/20210118080004.6367-1-lukas.bulwahn@gmail.com


Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent da9d35e2
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+2 −2
Original line number Diff line number Diff line
@@ -1048,12 +1048,12 @@ Unlike classic BPF instruction set, eBPF has generic load/store operations::
Where size is one of: BPF_B or BPF_H or BPF_W or BPF_DW.

It also includes atomic operations, which use the immediate field for extra
encoding.
encoding::

   .imm = BPF_ADD, .code = BPF_ATOMIC | BPF_W  | BPF_STX: lock xadd *(u32 *)(dst_reg + off16) += src_reg
   .imm = BPF_ADD, .code = BPF_ATOMIC | BPF_DW | BPF_STX: lock xadd *(u64 *)(dst_reg + off16) += src_reg

The basic atomic operations supported are:
The basic atomic operations supported are::

    BPF_ADD
    BPF_AND