diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2011-10-20 15:14:25 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2011-10-20 15:14:25 +0200 |
| commit | b4cbb8a4e602ea77b0525d06eff89c6a6070dab3 (patch) | |
| tree | a5dd723679582505ef3905c90f0c2c032d191b94 /drivers/net/ppp_generic.c | |
| parent | 526b264163068f77c5f2409031f5e25caf3900a9 (diff) | |
| parent | c5d7a9230e5e277f262b6806b7f4d6b35de5a3fb (diff) | |
| download | linux-b4cbb8a4e602ea77b0525d06eff89c6a6070dab3.tar.bz2 | |
Merge branch 'imx-features-for-arnd' of git://git.pengutronix.de/git/imx/linux-2.6 into imx/devel
Conflicts:
arch/arm/mach-mx5/clock-mx51-mx53.c
arch/arm/mach-mx5/devices-imx53.h
Diffstat (limited to 'drivers/net/ppp_generic.c')
| -rw-r--r-- | drivers/net/ppp_generic.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c index 10e5d985afa3..edfa15d2e795 100644 --- a/drivers/net/ppp_generic.c +++ b/drivers/net/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) |