nfp: bpf: byte swap the instructions

Device expects the instructions in little endian.  Make sure we
byte swap on big endian hosts.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/netronome/nfp/bpf/jit.c b/drivers/net/ethernet/netronome/nfp/bpf/jit.c
index e0600d0377738859d9e25e0290a34773781a2331..f68052367db708d11142ef5fab2a434c350cf7cf 100644 (file)
--- a/drivers/net/ethernet/netronome/nfp/bpf/jit.c
+++ b/drivers/net/ethernet/netronome/nfp/bpf/jit.c
@@ -1725,7 +1725,7 @@ static int nfp_bpf_optimize(struct nfp_prog *nfp_prog)
        return 0;
 }
 
-static int nfp_bpf_ustore_calc(struct nfp_prog *nfp_prog)
+static int nfp_bpf_ustore_calc(struct nfp_prog *nfp_prog, __le64 *ustore)
 {
        int i;
 
@@ -1737,6 +1737,8 @@ static int nfp_bpf_ustore_calc(struct nfp_prog *nfp_prog)
                        return err;
 
                nfp_prog->prog[i] = nfp_ustore_calc_ecc_insn(nfp_prog->prog[i]);
+
+               ustore[i] = cpu_to_le64(nfp_prog->prog[i]);
        }
 
        return 0;
@@ -1796,7 +1798,7 @@ nfp_bpf_jit(struct bpf_prog *filter, void *prog_mem,
                goto out;
        }
 
-       ret = nfp_bpf_ustore_calc(nfp_prog);
+       ret = nfp_bpf_ustore_calc(nfp_prog, (__force __le64 *)prog_mem);
 
        res->n_instr = nfp_prog->prog_len;
        res->dense_mode = false;