[PATCH 1/2] net: spider_net: do not read mac address again after setting it

Antoine Tenart
2014-10-03T15:01:55Z

This patch removes the spider_net_get_mac_address() call at the end of
the spider_net_set_mac() function. The dev->dev_addr is instead updated
with a memcpy() from sa->sa_data.

Since spider_net_get_mac_address() is not used anywhere else, this patch
also removes the function.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
---
drivers/net/ethernet/toshiba/spider_net.c | 36 ++-----------------------------
1 file changed, 2 insertions(+), 34 deletions(-)

diff --git a/drivers/net/ethernet/toshiba/spider_net.c b/drivers/net/ethernet/toshiba/spider_net.c
index 3e38f67c6011..713313e15c68 100644
--- a/drivers/net/ethernet/toshiba/spider_net.c
+++ b/drivers/net/ethernet/toshiba/spider_net.c
@@ -267,34 +267,6 @@ spider_net_set_promisc(struct spider_net_card *card)
}

/**
- * spider_net_get_mac_address - read mac address from spider card
- * @card: device structure
- *
- * reads MAC address from GMACUNIMACU and GMACUNIMACL registers
- */
-static int
-spider_net_get_mac_address(struct net_device *netdev)
-{
- struct spider_net_card *card = netdev_priv(netdev);
- u32 macl, macu;
-
- macl = spider_net_read_reg(card, SPIDER_NET_GMACUNIMACL);
- macu = spider_net_read_reg(card, SPIDER_NET_GMACUNIMACU);
-
- netdev->dev_addr[0] = (macu >> 24) & 0xff;
- netdev->dev_addr[1] = (macu >> 16) & 0xff;
- netdev->dev_addr[2] = (macu >> 8) & 0xff;
- netdev->dev_addr[3] = macu & 0xff;
- netdev->dev_addr[4] = (macl >> 8) & 0xff;
- netdev->dev_addr[5] = macl & 0xff;
-
- if (!is_valid_ether_addr(&netdev->dev_addr[0]))
- return -EINVAL;
-
- return 0;
-}
-
-/**
* spider_net_get_descr_status -- returns the status of a descriptor
* @descr: descriptor to look at
*
@@ -1345,6 +1317,8 @@ spider_net_set_mac(struct net_device *netdev, void *p)
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;

+ memcpy(netdev->dev_addr, addr->sa_data, ETH_ALEN);
+
/* switch off GMACTPE and GMACRPE */
regvalue = spider_net_read_reg(card, SPIDER_NET_GMACOPEMD);
regvalue &= ~((1 << 5) | (1 << 6));
@@ -1364,12 +1338,6 @@ spider_net_set_mac(struct net_device *netdev, void *p)

spider_net_set_promisc(card);

- /* look up, whether we have been successful */
- if (spider_net_get_mac_address(netdev))
- return -EADDRNOTAVAIL;
- if (memcmp(netdev->dev_addr,addr->sa_data,netdev->addr_len))
- return -EADDRNOTAVAIL;
-
return 0;
}

--
1.9.1