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authorQuentin Monnet <quentin.monnet@netronome.com>2018-01-19 17:44:46 -0800
committerDavid S. Miller <davem@davemloft.net>2018-01-22 16:28:31 -0500
commit631f65ff222211711715aad9a640fb5f954c81f5 (patch)
tree1786fba56495fcc85a8a8ed938a947e2d0ddb81a /net/sched/cls_bpf.c
parent10a47e0f0930149664dbc44169edc1fef09c4257 (diff)
downloadlinux-631f65ff222211711715aad9a640fb5f954c81f5.tar.bz2
net: sched: cls_bpf: plumb extack support in filter for hardware offload
Pass the extack pointer obtained in the `->change()` filter operation to cls_bpf_offload() and then to cls_bpf_offload_cmd(). This makes it possible to use this extack pointer in drivers offloading BPF programs in a future patch. Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/cls_bpf.c')
-rw-r--r--net/sched/cls_bpf.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/net/sched/cls_bpf.c b/net/sched/cls_bpf.c
index 988ad45d78b8..cd4194b1d5e4 100644
--- a/net/sched/cls_bpf.c
+++ b/net/sched/cls_bpf.c
@@ -147,7 +147,8 @@ static bool cls_bpf_is_ebpf(const struct cls_bpf_prog *prog)
}
static int cls_bpf_offload_cmd(struct tcf_proto *tp, struct cls_bpf_prog *prog,
- struct cls_bpf_prog *oldprog)
+ struct cls_bpf_prog *oldprog,
+ struct netlink_ext_ack *extack)
{
struct tcf_block *block = tp->chain->block;
struct tc_cls_bpf_offload cls_bpf = {};
@@ -173,7 +174,7 @@ static int cls_bpf_offload_cmd(struct tcf_proto *tp, struct cls_bpf_prog *prog,
err = tc_setup_cb_call(block, NULL, TC_SETUP_CLSBPF, &cls_bpf, skip_sw);
if (prog) {
if (err < 0) {
- cls_bpf_offload_cmd(tp, oldprog, prog);
+ cls_bpf_offload_cmd(tp, oldprog, prog, extack);
return err;
} else if (err > 0) {
tcf_block_offload_inc(block, &prog->gen_flags);
@@ -192,7 +193,8 @@ static u32 cls_bpf_flags(u32 flags)
}
static int cls_bpf_offload(struct tcf_proto *tp, struct cls_bpf_prog *prog,
- struct cls_bpf_prog *oldprog)
+ struct cls_bpf_prog *oldprog,
+ struct netlink_ext_ack *extack)
{
if (prog && oldprog &&
cls_bpf_flags(prog->gen_flags) !=
@@ -206,7 +208,7 @@ static int cls_bpf_offload(struct tcf_proto *tp, struct cls_bpf_prog *prog,
if (!prog && !oldprog)
return 0;
- return cls_bpf_offload_cmd(tp, prog, oldprog);
+ return cls_bpf_offload_cmd(tp, prog, oldprog, extack);
}
static void cls_bpf_stop_offload(struct tcf_proto *tp,
@@ -214,7 +216,7 @@ static void cls_bpf_stop_offload(struct tcf_proto *tp,
{
int err;
- err = cls_bpf_offload_cmd(tp, NULL, prog);
+ err = cls_bpf_offload_cmd(tp, NULL, prog, NULL);
if (err)
pr_err("Stopping hardware offload failed: %d\n", err);
}
@@ -514,7 +516,7 @@ static int cls_bpf_change(struct net *net, struct sk_buff *in_skb,
if (ret < 0)
goto errout_idr;
- ret = cls_bpf_offload(tp, prog, oldprog);
+ ret = cls_bpf_offload(tp, prog, oldprog, extack);
if (ret)
goto errout_parms;