From c4f7730be580f8c39decc058246a83ddf7d7b3cb Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Wed, 10 Jan 2018 12:25:56 +0000 Subject: [PATCH] nfp: bpf: round up the size of the stack 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 Signed-off-by: Daniel Borkmann --- 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); -- GitLab