| Message ID | 1553623539-15474-10-git-send-email-jiong.wang@netronome.com |
|---|---|
| State | RFC |
| Delegated to: | BPF Maintainers |
| Headers | show |
| Series | bpf: eliminate zero extensions for sub-register writes | expand |
diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c index 21a1dcd..d10621b 100644 --- a/arch/powerpc/net/bpf_jit_comp64.c +++ b/arch/powerpc/net/bpf_jit_comp64.c @@ -559,7 +559,7 @@ static int bpf_jit_build_body(struct bpf_prog *fp, u32 *image, bpf_alu32_trunc: /* Truncate to 32-bits */ - if (BPF_CLASS(code) == BPF_ALU) + if (BPF_CLASS(code) == BPF_ALU && fp->aux->no_verifier_zext) PPC_RLWINM(dst_reg, dst_reg, 0, 0, 31); break; @@ -1046,6 +1046,11 @@ struct powerpc64_jit_data { struct codegen_context ctx; }; +bool bpf_jit_hardware_zext(void) +{ + return false; +} + struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *fp) { u32 proglen;
Cc: Naveen N. Rao <naveen.n.rao@linux.ibm.com> Cc: Sandipan Das <sandipan@linux.ibm.com> Signed-off-by: Jiong Wang <jiong.wang@netronome.com> --- arch/powerpc/net/bpf_jit_comp64.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)