Commit 54a61fbc authored Feb 20, 2020 by Julian Wiedmann Committed by David S. Miller Feb 20, 2020

s390/qeth: fix off-by-one in RX copybreak check



The RX copybreak is intended as the _max_ value where the frame's data
should be copied. So for frame_len == copybreak, don't build an SG skb.

Fixes: 4a71df50 ("qeth: new qeth device driver")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 420579db

drivers/s390/net/qeth_core_main.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -5344,7 +5344,7 @@ next_packet:
		}

		use_rx_sg = (card->options.cq == QETH_CQ_ENABLED) \|\|
		((skb_len >= card->options.rx_sg_cb) &&
		(skb_len > card->options.rx_sg_cb &&
		!atomic_read(&card->force_alloc_skb) &&
		!IS_OSN(card));

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