diff options
| author | Alex Shi <alex.shi@linaro.org> | 2018-02-28 12:01:09 +0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2018-02-28 12:01:09 +0800 |
| commit | 6e49b7fa3083c30688b7fff1b37ed891cd1c30af (patch) | |
| tree | 3054864f2e58bcd86000567ce99e25753ddc794a /drivers/net/ppp/pppoe.c | |
| parent | 2ba51c6d36ee1b43c1f898c6c48ddf3d33e9ab30 (diff) | |
| parent | be42cd02846a611af533103a3f4b6a7d8c592f49 (diff) | |
Merge remote-tracking branch 'rt-stable/v4.9-rt' into linux-linaro-lsk-v4.9-rtlsk-v4.9-18.03-rt
Diffstat (limited to 'drivers/net/ppp/pppoe.c')
| -rw-r--r-- | drivers/net/ppp/pppoe.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c index 4ddae8118c85..dc36c2ec1d10 100644 --- a/drivers/net/ppp/pppoe.c +++ b/drivers/net/ppp/pppoe.c @@ -842,6 +842,7 @@ static int pppoe_sendmsg(struct socket *sock, struct msghdr *m, struct pppoe_hdr *ph; struct net_device *dev; char *start; + int hlen; lock_sock(sk); if (sock_flag(sk, SOCK_DEAD) || !(sk->sk_state & PPPOX_CONNECTED)) { @@ -860,16 +861,16 @@ static int pppoe_sendmsg(struct socket *sock, struct msghdr *m, if (total_len > (dev->mtu + dev->hard_header_len)) goto end; - - skb = sock_wmalloc(sk, total_len + dev->hard_header_len + 32, - 0, GFP_KERNEL); + hlen = LL_RESERVED_SPACE(dev); + skb = sock_wmalloc(sk, hlen + sizeof(*ph) + total_len + + dev->needed_tailroom, 0, GFP_KERNEL); if (!skb) { error = -ENOMEM; goto end; } /* Reserve space for headers. */ - skb_reserve(skb, dev->hard_header_len); + skb_reserve(skb, hlen); skb_reset_network_header(skb); skb->dev = dev; @@ -930,7 +931,7 @@ static int __pppoe_xmit(struct sock *sk, struct sk_buff *skb) /* Copy the data if there is no space for the header or if it's * read-only. */ - if (skb_cow_head(skb, sizeof(*ph) + dev->hard_header_len)) + if (skb_cow_head(skb, LL_RESERVED_SPACE(dev) + sizeof(*ph))) goto abort; __skb_push(skb, sizeof(*ph)); |