diff options
| author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2018-03-28 17:48:29 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2018-03-28 19:36:13 -0700 |
| commit | 2f46e0c1273512cbdb944f5a50cc93cf0888c3d7 (patch) | |
| tree | 1a890a77ef5f1b07c3f55c76d3e8acef52a32dc9 /drivers/net/ethernet/netronome/nfp/bpf/jit.c | |
| parent | fc4484970e7e4bf40ba958f7bc48474ddadfdbfc (diff) | |
| download | linux-2f46e0c1273512cbdb944f5a50cc93cf0888c3d7.tar.bz2 | |
nfp: bpf: add helper for validating stack pointers
Our implementation has restriction on stack pointers for function
calls. Move the common checks into a helper for reuse. The state
has to be encapsulated into a structure to support parameters
other than BPF_REG_2.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Reviewed-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/bpf/jit.c')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/bpf/jit.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/bpf/jit.c b/drivers/net/ethernet/netronome/nfp/bpf/jit.c index b37c9f86a18f..3799ca9b9826 100644 --- a/drivers/net/ethernet/netronome/nfp/bpf/jit.c +++ b/drivers/net/ethernet/netronome/nfp/bpf/jit.c @@ -1366,8 +1366,8 @@ map_call_stack_common(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta) /* We only have to reload LM0 if the key is not at start of stack */ lm_off = nfp_prog->stack_depth; - lm_off += meta->arg2.var_off.value + meta->arg2.off; - load_lm_ptr = meta->arg2_var_off || lm_off; + lm_off += meta->arg2.reg.var_off.value + meta->arg2.reg.off; + load_lm_ptr = meta->arg2.var_off || lm_off; /* Set LM0 to start of key */ if (load_lm_ptr) |