x86/power/64: Always create temporary identity mapping correctly

[cascardo/linux.git] / net / sched / cls_u32.c

diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index 27b99fd..ffe593e 100644 (file)
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -508,27 +508,28 @@ static int u32_replace_hw_knode(struct tcf_proto *tp,
        offload.type = TC_SETUP_CLSU32;
        offload.cls_u32 = &u32_offload;
 
-       if (tc_should_offload(dev, tp, flags)) {
-               offload.cls_u32->command = TC_CLSU32_REPLACE_KNODE;
-               offload.cls_u32->knode.handle = n->handle;
-               offload.cls_u32->knode.fshift = n->fshift;
+       if (!tc_should_offload(dev, tp, flags))
+               return tc_skip_sw(flags) ? -EINVAL : 0;
+
+       offload.cls_u32->command = TC_CLSU32_REPLACE_KNODE;
+       offload.cls_u32->knode.handle = n->handle;
+       offload.cls_u32->knode.fshift = n->fshift;
 #ifdef CONFIG_CLS_U32_MARK
-               offload.cls_u32->knode.val = n->val;
-               offload.cls_u32->knode.mask = n->mask;
+       offload.cls_u32->knode.val = n->val;
+       offload.cls_u32->knode.mask = n->mask;
 #else
-               offload.cls_u32->knode.val = 0;
-               offload.cls_u32->knode.mask = 0;
+       offload.cls_u32->knode.val = 0;
+       offload.cls_u32->knode.mask = 0;
 #endif
-               offload.cls_u32->knode.sel = &n->sel;
-               offload.cls_u32->knode.exts = &n->exts;
-               if (n->ht_down)
-                       offload.cls_u32->knode.link_handle = n->ht_down->handle;
-
-               err = dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle,
-                                                   tp->protocol, &offload);
-               if (tc_skip_sw(flags))
-                       return err;
-       }
+       offload.cls_u32->knode.sel = &n->sel;
+       offload.cls_u32->knode.exts = &n->exts;
+       if (n->ht_down)
+               offload.cls_u32->knode.link_handle = n->ht_down->handle;
+
+       err = dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle,
+                                           tp->protocol, &offload);
+       if (tc_skip_sw(flags))
+               return err;
 
        return 0;
 }
@@ -922,11 +923,17 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
                ht->divisor = divisor;
                ht->handle = handle;
                ht->prio = tp->prio;
+
+               err = u32_replace_hw_hnode(tp, ht, flags);
+               if (err) {
+                       kfree(ht);
+                       return err;
+               }
+
                RCU_INIT_POINTER(ht->next, tp_c->hlist);
                rcu_assign_pointer(tp_c->hlist, ht);
                *arg = (unsigned long)ht;
 
-               u32_replace_hw_hnode(tp, ht, flags);
                return 0;
        }