bpf, x64: Factor out emission of REX byte in more cases

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Introduce a single reg version of maybe_emit_mod() and factor out
common code in more cases.

Signed-off-by: Jie Meng <jmeng@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20211006194135.608932-1-jmeng@fb.com

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Jie Meng 2021-10-06 12:41:35 -07:00 • committed by Daniel Borkmann

parent 0e545dbaa2

commit 6364d7d75a

1 changed files with 31 additions and 36 deletions

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67

arch/x86/net/bpf_jit_comp.c

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