bpf, x86: save/restore regs with BPF_DW size

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As we already reserve 8 byte in the stack for each reg, it is ok to
store/restore the regs in BPF_DW size. This will make the code in
save_regs()/restore_regs() simpler.

Signed-off-by: Menglong Dong <imagedong@tencent.com>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20230713040738.1789742-2-imagedong@tencent.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Menglong Dong 2023-07-13 12:07:36 +08:00 • committed by Alexei Starovoitov

parent 0a5550b116

commit 02a6dfa8ff

1 changed files with 6 additions and 29 deletions

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arch/x86/net/bpf_jit_comp.c

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