[PATCH bpf-next 15/19] nfp: bpf: remove the trivial JSET optimization

[Jakub Kicinski]

The verifier will now understand the JSET instruction, so don't
mark the dead branch in the JIT as noop.  We won't generate any
code, anyway.

Signed-off-by: Jakub Kicinski <jakub.kicin...@netronome.com>
Reviewed-by: Quentin Monnet <quentin.mon...@netronome.com>
---
 drivers/net/ethernet/netronome/nfp/bpf/jit.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/net/ethernet/netronome/nfp/bpf/jit.c 
b/drivers/net/ethernet/netronome/nfp/bpf/jit.c
index 188270c681fc..6e83bd4707fb 100644
--- a/drivers/net/ethernet/netronome/nfp/bpf/jit.c
+++ b/drivers/net/ethernet/netronome/nfp/bpf/jit.c
@@ -3054,11 +3054,6 @@ static int jset_imm(struct nfp_prog *nfp_prog, struct 
nfp_insn_meta *meta)
        u64 imm = insn->imm; /* sign extend */
        swreg tmp_reg;
 
-       if (!imm) {
-               meta->flags |= FLAG_INSN_SKIP_NOOP;
-               return 0;
-       }
-
        if (imm & ~0U) {
                tmp_reg = ur_load_imm_any(nfp_prog, imm & ~0U, imm_b(nfp_prog));
                emit_alu(nfp_prog, reg_none(),
-- 
2.19.2