diff options
| author | Zi Shen Lim <zlim.lnx@gmail.com> | 2016-06-08 21:18:50 -0700 |
|---|---|---|
| committer | Michael Bestas <mkbestas@lineageos.org> | 2022-04-19 00:51:58 +0300 |
| commit | c4c77c3c0e4bc54eb64ad484f10b057ea2b8a343 (patch) | |
| tree | d467a17a9bda56b69640a1269431fa0db6e8142b /arch | |
| parent | e5d46ad659ea89e39a133c18800ad72a5a2de933 (diff) | |
arm64: bpf: optimize LD_ABS, LD_IND
Remove superfluous stack frame, saving us 3 instructions for every
LD_ABS or LD_IND.
Signed-off-by: Zi Shen Lim <zlim.lnx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/net/bpf_jit_comp.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c index 6ef8a9787e86..6da00264d1fb 100644 --- a/arch/arm64/net/bpf_jit_comp.c +++ b/arch/arm64/net/bpf_jit_comp.c @@ -731,11 +731,8 @@ emit_cond_jmp: emit_a64_mov_i64(r3, size, ctx); emit(A64_SUB_I(1, r4, fp, STACK_SIZE), ctx); emit_a64_mov_i64(r5, (unsigned long)bpf_load_pointer, ctx); - emit(A64_PUSH(A64_FP, A64_LR, A64_SP), ctx); - emit(A64_MOV(1, A64_FP, A64_SP), ctx); emit(A64_BLR(r5), ctx); emit(A64_MOV(1, r0, A64_R(0)), ctx); - emit(A64_POP(A64_FP, A64_LR, A64_SP), ctx); jmp_offset = epilogue_offset(ctx); check_imm19(jmp_offset); |