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nfp: bpf: byte swap the instructions

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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>
This commit is contained in:
Jakub Kicinski 2017-10-08 21:04:16 -07:00 committed by David S. Miller
parent 1c03e03f9b
commit 2e85d3884f
1 changed files with 4 additions and 2 deletions
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6
drivers/net/ethernet/netronome/nfp/bpf/jit.c
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@ -1725,7 +1725,7 @@ static int nfp_bpf_optimize(struct nfp_prog *nfp_prog)
return 0; 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; int i;
@ -1737,6 +1737,8 @@ static int nfp_bpf_ustore_calc(struct nfp_prog *nfp_prog)
return err; return err;
nfp_prog->prog[i] = nfp_ustore_calc_ecc_insn(nfp_prog->prog[i]); nfp_prog->prog[i] = nfp_ustore_calc_ecc_insn(nfp_prog->prog[i]);
ustore[i] = cpu_to_le64(nfp_prog->prog[i]);
} }
return 0; return 0;
@ -1796,7 +1798,7 @@ nfp_bpf_jit(struct bpf_prog *filter, void *prog_mem,
goto out; 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->n_instr = nfp_prog->prog_len;
res->dense_mode = false; res->dense_mode = false;