Noticed by Stephen Rothwell:
Today's linux-next build (x86_64 allmodconfig gcc-4.4.0)
produced this warning:
drivers/net/wan/dscc4.c: In function 'dscc4_rx_skb':
drivers/net/wan/dscc4.c:670: warning: suggest parentheses around comparison in operand of '|'
which actually points out a bug, I think. It is doing
(x & (y | z)) != y | z
when it probably means
(x & (y | z)) != (y | z)
Introduced by commit
5de3fcab91b0e1809eec030355d15801daf25083
("WAN: bit and/or confusion").
Signed-off-by: David S. Miller <davem@davemloft.net>
else if (!(skb->data[pkt_len] & FrameCrc))
dev->stats.rx_crc_errors++;
else if ((skb->data[pkt_len] & (FrameVfr | FrameRab)) !=
- FrameVfr | FrameRab)
+ (FrameVfr | FrameRab))
dev->stats.rx_length_errors++;
dev->stats.rx_errors++;
dev_kfree_skb_irq(skb);