diff options
| author | Stephen Hemminger <shemminger@linux-foundation.org> | 2007-08-16 09:12:48 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-08-22 16:23:25 -0700 |
| commit | 8c07a8e30ba8a2e0831da4b134202598435f8358 (patch) | |
| tree | 1a090ed9c8707ed2b259b248da65907f77ec0cd6 | |
| parent | 36d644b90a9e71e03064c1a5f28a53551ec3b621 (diff) | |
sky2: check drop truncated packets
Backport of commit 71749531f2d1954137a1a77422ef4ff29eb102dd
If packet larger than MTU is received, the driver uses hardware to
truncate the packet. Use the status registers to catch/drop them.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/net/sky2.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index d5fe418bdf4..d2646a8087a 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -2065,6 +2065,9 @@ static struct sk_buff *sky2_receive(struct net_device *dev, if (!(status & GMR_FS_RX_OK)) goto resubmit; + if (status >> 16 != length) + goto len_mismatch; + if (length < copybreak) skb = receive_copy(sky2, re, length); else @@ -2074,6 +2077,11 @@ resubmit: return skb; +len_mismatch: + /* Truncation of overlength packets + causes PHY length to not match MAC length */ + ++sky2->net_stats.rx_length_errors; + error: ++sky2->net_stats.rx_errors; if (status & GMR_FS_RX_FF_OV) { |