[PATCH bpf-next 03/14] nfp: bpf: round up the size of the stack

[Jakub Kicinski]

Kernel enforces the alignment of the bottom of the stack, NFP
deals with positive offsets better so we should align the top
of the stack.  Round the stack size to NFP word size (4B).

Signed-off-by: Jakub Kicinski <jakub.kicin...@netronome.com>
---
 drivers/net/ethernet/netronome/nfp/bpf/offload.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/netronome/nfp/bpf/offload.c 
b/drivers/net/ethernet/netronome/nfp/bpf/offload.c
index fa2905e67b07..8dbf13450bab 100644
--- a/drivers/net/ethernet/netronome/nfp/bpf/offload.c
+++ b/drivers/net/ethernet/netronome/nfp/bpf/offload.c
@@ -147,7 +147,7 @@ int nfp_bpf_translate(struct nfp_app *app, struct nfp_net 
*nn,
                return -EOPNOTSUPP;
        }
 
-       nfp_prog->stack_depth = prog->aux->stack_depth;
+       nfp_prog->stack_depth = round_up(prog->aux->stack_depth, 4);
        nfp_prog->start_off = nn_readw(nn, NFP_NET_CFG_BPF_START);
        nfp_prog->tgt_done = nn_readw(nn, NFP_NET_CFG_BPF_DONE);
 
-- 
2.15.1