diff options
| author | Alex Shi <alex.shi@linaro.org> | 2018-01-18 15:26:28 +0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2018-01-18 15:26:28 +0800 |
| commit | 2ba51c6d36ee1b43c1f898c6c48ddf3d33e9ab30 (patch) | |
| tree | ff3302dc45a91d7bfcaabd37bfa8fa391a954180 /net/sched/sch_dsmark.c | |
| parent | 28610abf4a574c33ca70e3d7b0e523fdede488d1 (diff) | |
| parent | 90816cc1d4a1d23efe37b74866c6174dd5eab6b5 (diff) | |
Merge remote-tracking branch 'rt-stable/v4.9-rt' into linux-linaro-lsk-v4.9-rtlsk-v4.9-18.02-rt
Conflicts:
arch/arm64/mm/init.c
Diffstat (limited to 'net/sched/sch_dsmark.c')
| -rw-r--r-- | net/sched/sch_dsmark.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/net/sched/sch_dsmark.c b/net/sched/sch_dsmark.c index 1308bbf460f7..b56d57984439 100644 --- a/net/sched/sch_dsmark.c +++ b/net/sched/sch_dsmark.c @@ -200,9 +200,13 @@ static int dsmark_enqueue(struct sk_buff *skb, struct Qdisc *sch, pr_debug("%s(skb %p,sch %p,[qdisc %p])\n", __func__, skb, sch, p); if (p->set_tc_index) { + int wlen = skb_network_offset(skb); + switch (tc_skb_protocol(skb)) { case htons(ETH_P_IP): - if (skb_cow_head(skb, sizeof(struct iphdr))) + wlen += sizeof(struct iphdr); + if (!pskb_may_pull(skb, wlen) || + skb_try_make_writable(skb, wlen)) goto drop; skb->tc_index = ipv4_get_dsfield(ip_hdr(skb)) @@ -210,7 +214,9 @@ static int dsmark_enqueue(struct sk_buff *skb, struct Qdisc *sch, break; case htons(ETH_P_IPV6): - if (skb_cow_head(skb, sizeof(struct ipv6hdr))) + wlen += sizeof(struct ipv6hdr); + if (!pskb_may_pull(skb, wlen) || + skb_try_make_writable(skb, wlen)) goto drop; skb->tc_index = ipv6_get_dsfield(ipv6_hdr(skb)) |