sky2: check drop truncated packets (71749531) · Commits · 戴 / test

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:

drivers/net/sky2.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -2109,6 +2109,9 @@ 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
		@@ -2118,6 +2121,11 @@ 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) {