From 2e85d3884f25a0419a941676d1a7c25779884be2 Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Sun, 8 Oct 2017 21:04:16 -0700 Subject: [PATCH] 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 Reviewed-by: Simon Horman Signed-off-by: David S. Miller --- drivers/net/ethernet/netronome/nfp/bpf/jit.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/netronome/nfp/bpf/jit.c b/drivers/net/ethernet/netronome/nfp/bpf/jit.c index e0600d037773..f68052367db7 100644 --- 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; -- 2.30.2