diff options
| author | John Fastabend <john.fastabend@gmail.com> | 2014-09-16 08:30:49 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-09-16 21:59:36 +0200 |
| commit | a96366bf263919c529baa74a0b029c82a8388045 (patch) | |
| tree | a059526b1bb6064cdd1496aaa4a26069a300daef /net/sched/cls_u32.c | |
| parent | net: sched: fix unsued cpu variable (diff) | |
| download | linux-a96366bf263919c529baa74a0b029c82a8388045.tar.xz linux-a96366bf263919c529baa74a0b029c82a8388045.zip | |
net: sched: cls_u32 add missing rcu_assign_pointer and annotation
Add missing rcu_assign_pointer and missing annotation for ht_up
in cls_u32.c
Caught by kbuild bot,
>> net/sched/cls_u32.c:378:36: sparse: incorrect type in initializer (different address spaces)
net/sched/cls_u32.c:378:36: expected struct tc_u_hnode *ht
net/sched/cls_u32.c:378:36: got struct tc_u_hnode [noderef] <asn:4>*ht_up
>> net/sched/cls_u32.c:610:54: sparse: incorrect type in argument 4 (different address spaces)
net/sched/cls_u32.c:610:54: expected struct tc_u_hnode *ht
net/sched/cls_u32.c:610:54: got struct tc_u_hnode [noderef] <asn:4>*ht_up
>> net/sched/cls_u32.c:684:18: sparse: incorrect type in assignment (different address spaces)
net/sched/cls_u32.c:684:18: expected struct tc_u_hnode [noderef] <asn:4>*ht_up
net/sched/cls_u32.c:684:18: got struct tc_u_hnode *[assigned] ht
>> net/sched/cls_u32.c:359:18: sparse: dereference of noderef expression
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/cls_u32.c')
| -rw-r--r-- | net/sched/cls_u32.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c index 8cffe5a27007..eceeb0456d26 100644 --- a/net/sched/cls_u32.c +++ b/net/sched/cls_u32.c @@ -375,7 +375,7 @@ static int u32_delete_key(struct tcf_proto *tp, struct tc_u_knode *key) { struct tc_u_knode __rcu **kp; struct tc_u_knode *pkp; - struct tc_u_hnode *ht = key->ht_up; + struct tc_u_hnode *ht = rtnl_dereference(key->ht_up); if (ht) { kp = &ht->ht[TC_U32_HASH(key->handle)]; @@ -607,7 +607,8 @@ static int u32_change(struct net *net, struct sk_buff *in_skb, if (TC_U32_KEY(n->handle) == 0) return -EINVAL; - return u32_set_parms(net, tp, base, n->ht_up, n, tb, + return u32_set_parms(net, tp, base, + rtnl_dereference(n->ht_up), n, tb, tca[TCA_RATE], ovr); } @@ -681,7 +682,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb, #endif memcpy(&n->sel, s, sizeof(*s) + s->nkeys*sizeof(struct tc_u32_key)); - n->ht_up = ht; + RCU_INIT_POINTER(n->ht_up, ht); n->handle = handle; n->fshift = s->hmask ? ffs(ntohl(s->hmask)) - 1 : 0; tcf_exts_init(&n->exts, TCA_U32_ACT, TCA_U32_POLICE); |