bpf, x64: save few bytes when mul is in alu32

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Add a generic emit_mov_reg() helper in order to reuse it in BPF
multiplication to load the src into rax, we can save a few bytes
in alu32 while doing so.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Daniel Borkmann 2018-02-24 01:08:01 +01:00 • committed by Alexei Starovoitov

parent d806a0cf2a

commit 4c38e2f386

1 changed files with 28 additions and 15 deletions

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arch/x86/net/bpf_jit_comp.c

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