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authorJakub Kicinski <jakub.kicinski@netronome.com>2018-01-10 12:25:56 +0000
committerDaniel Borkmann <daniel@iogearbox.net>2018-01-10 13:49:35 +0100
commitc4f7730be580f8c39decc058246a83ddf7d7b3cb (patch)
tree844ab4f418b487138892e5ba29b7651a0d9a6d89
parent8c6a6d98044dca7e54bcc108da1d8e47b409ec6a (diff)
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 <jakub.kicinski@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
-rw-r--r--drivers/net/ethernet/netronome/nfp/bpf/offload.c2
1 files changed, 1 insertions, 1 deletions
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);