diff options
| author | David S. Miller <davem@davemloft.net> | 2011-09-22 03:23:13 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-09-22 03:23:13 -0400 |
| commit | 8decf868790b48a727d7e7ca164f2bcd3c1389c0 (patch) | |
| tree | b759a5f861f842af7ea76f9011b579d06e9d5508 /drivers/net/ppp/ppp_generic.c | |
| parent | 3fc72370186be2f9d4d6ef06d99e1caa5d92c564 (diff) | |
| parent | d93dc5c4478c1fd5de85a3e8aece9aad7bbae044 (diff) | |
Merge branch 'master' of github.com:davem330/net
Conflicts:
MAINTAINERS
drivers/net/Kconfig
drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
drivers/net/ethernet/broadcom/tg3.c
drivers/net/wireless/iwlwifi/iwl-pci.c
drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c
drivers/net/wireless/rt2x00/rt2800usb.c
drivers/net/wireless/wl12xx/main.c
Diffstat (limited to 'drivers/net/ppp/ppp_generic.c')
| -rw-r--r-- | drivers/net/ppp/ppp_generic.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c index 10e5d985afa..edfa15d2e79 100644 --- a/drivers/net/ppp/ppp_generic.c +++ b/drivers/net/ppp/ppp_generic.c @@ -1465,7 +1465,12 @@ static int ppp_mp_explode(struct ppp *ppp, struct sk_buff *skb) continue; } - mtu = pch->chan->mtu - hdrlen; + /* + * hdrlen includes the 2-byte PPP protocol field, but the + * MTU counts only the payload excluding the protocol field. + * (RFC1661 Section 2) + */ + mtu = pch->chan->mtu - (hdrlen - 2); if (mtu < 4) mtu = 4; if (flen > mtu) |