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net: spider_net: avoid using signed char for bitops 

Signedness bugs may occur when using signed char for bitops,
depending on if the highest bit is ever used.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Antoine Ténart 2014-10-03 17:01:56 +02:00 committed by David S. Miller
parent 0f6a670116
commit 96aacededc
1 changed files with 3 additions and 3 deletions
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6
drivers/net/ethernet/toshiba/spider_net.c
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@ -1325,9 +1325,9 @@ spider_net_set_mac(struct net_device *netdev, void *p)
spider_net_write_reg(card, SPIDER_NET_GMACOPEMD, regvalue);
/* write mac */
macu = (addr->sa_data[0]<<24) + (addr->sa_data[1]<<16) +
(addr->sa_data[2]<<8) + (addr->sa_data[3]);
macl = (addr->sa_data[4]<<8) + (addr->sa_data[5]);
macu = (netdev->dev_addr[0]<<24) + (netdev->dev_addr[1]<<16) +
(netdev->dev_addr[2]<<8) + (netdev->dev_addr[3]);
macl = (netdev->dev_addr[4]<<8) + (netdev->dev_addr[5]);
spider_net_write_reg(card, SPIDER_NET_GMACUNIMACU, macu);
spider_net_write_reg(card, SPIDER_NET_GMACUNIMACL, macl);