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| author | Felix Fietkau <nbd@openwrt.org> | 2015-11-11 14:12:51 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2015-11-11 14:12:51 +0000 |
| commit | 8a2a1c1d71199a77ba92a02f8e5be6fd7d7bf398 (patch) | |
| tree | 926e5970f96ee9b989fd929669e1c5e66b380b38 /target/linux/generic/patches-4.1 | |
| parent | 4e239d9fdbad9f125b2a82eb2eb39041ac87c1da (diff) | |
| download | mtk-20170518-8a2a1c1d71199a77ba92a02f8e5be6fd7d7bf398.zip mtk-20170518-8a2a1c1d71199a77ba92a02f8e5be6fd7d7bf398.tar.gz mtk-20170518-8a2a1c1d71199a77ba92a02f8e5be6fd7d7bf398.tar.bz2 | |
kernel: fix an af_packet regression that was breaking PPPoE on 4.1+ (#20707)
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 47459
Diffstat (limited to 'target/linux/generic/patches-4.1')
| -rw-r--r-- | target/linux/generic/patches-4.1/103-packet_allow_empty_payload.patch | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/target/linux/generic/patches-4.1/103-packet_allow_empty_payload.patch b/target/linux/generic/patches-4.1/103-packet_allow_empty_payload.patch new file mode 100644 index 0000000..052f457 --- /dev/null +++ b/target/linux/generic/patches-4.1/103-packet_allow_empty_payload.patch @@ -0,0 +1,17 @@ +Fix a regression in the af_packet code that was breaking PPPoE + +pppd sends packets with only a header and no payload. + +Signed-off-by: Felix Fietkau <nbd@openwrt.org> + +--- a/net/packet/af_packet.c ++++ b/net/packet/af_packet.c +@@ -2106,7 +2106,7 @@ static void tpacket_destruct_skb(struct + static bool ll_header_truncated(const struct net_device *dev, int len) + { + /* net device doesn't like empty head */ +- if (unlikely(len <= dev->hard_header_len)) { ++ if (unlikely(len < dev->hard_header_len)) { + net_warn_ratelimited("%s: packet size is too short (%d <= %d)\n", + current->comm, len, dev->hard_header_len); + return true; |