atp: remove set_rx_mode_8012()

commit bb263e18f481199a04f7aab9454c18cd3dbdb218 upstream.

Building atp.o triggers this GCC warning:
    drivers/net/ethernet/realtek/atp.c: In function ‘set_rx_mode’:
    drivers/net/ethernet/realtek/atp.c:871:26: warning: ‘mc_filter[0]’ may be used uninitialized in this function [-Wuninitialized]

GCC is correct. In promiscuous mode 'mc_filter' will be used
uninitialized in set_rx_mode_8012(), which is apparently inlined into
set_rx_mode().

But it turns out set_rx_mode_8012() will never be called, since
net_local.chip_type will always be RTL8002. So we can just remove
set_rx_mode_8012() and do some related cleanups.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/drivers/net/ethernet/realtek/atp.c b/drivers/net/ethernet/realtek/atp.c
index e3f57fd..8c7dd4d 100644 (file)
--- a/drivers/net/ethernet/realtek/atp.c
+++ b/drivers/net/ethernet/realtek/atp.c
@@ -176,8 +176,7 @@ struct net_local {
     unsigned int tx_unit_busy:1;
     unsigned char re_tx,       /* Number of packet retransmissions. */
                addr_mode,              /* Current Rx filter e.g. promiscuous, etc. */
-               pac_cnt_in_tx_buf,
-               chip_type;
+               pac_cnt_in_tx_buf;
 };
 
 /* This code, written by wwc@super.org, resets the adapter every
@@ -340,7 +339,6 @@ static int __init atp_probe1(long ioaddr)
        write_reg_high(ioaddr, CMR1, CMR1h_RESET | CMR1h_MUX);
 
        lp = netdev_priv(dev);
-       lp->chip_type = RTL8002;
        lp->addr_mode = CMR2h_Normal;
        spin_lock_init(&lp->lock);
 
@@ -853,7 +851,7 @@ net_close(struct net_device *dev)
  *     Set or clear the multicast filter for this adapter.
  */
 
-static void set_rx_mode_8002(struct net_device *dev)
+static void set_rx_mode(struct net_device *dev)
 {
        struct net_local *lp = netdev_priv(dev);
        long ioaddr = dev->base_addr;
@@ -865,58 +863,6 @@ static void set_rx_mode_8002(struct net_device *dev)
        write_reg_high(ioaddr, CMR2, lp->addr_mode);
 }
 
-static void set_rx_mode_8012(struct net_device *dev)
-{
-       struct net_local *lp = netdev_priv(dev);
-       long ioaddr = dev->base_addr;
-       unsigned char new_mode, mc_filter[8]; /* Multicast hash filter */
-       int i;
-
-       if (dev->flags & IFF_PROMISC) {                 /* Set promiscuous. */
-               new_mode = CMR2h_PROMISC;
-       } else if ((netdev_mc_count(dev) > 1000) ||
-                  (dev->flags & IFF_ALLMULTI)) {
-               /* Too many to filter perfectly -- accept all multicasts. */
-               memset(mc_filter, 0xff, sizeof(mc_filter));
-               new_mode = CMR2h_Normal;
-       } else {
-               struct netdev_hw_addr *ha;
-
-               memset(mc_filter, 0, sizeof(mc_filter));
-               netdev_for_each_mc_addr(ha, dev) {
-                       int filterbit = ether_crc_le(ETH_ALEN, ha->addr) & 0x3f;
-                       mc_filter[filterbit >> 5] |= 1 << (filterbit & 31);
-               }
-               new_mode = CMR2h_Normal;
-       }
-       lp->addr_mode = new_mode;
-    write_reg(ioaddr, CMR2, CMR2_IRQOUT | 0x04); /* Switch to page 1. */
-    for (i = 0; i < 8; i++)
-               write_reg_byte(ioaddr, i, mc_filter[i]);
-       if (net_debug > 2 || 1) {
-               lp->addr_mode = 1;
-               printk(KERN_DEBUG "%s: Mode %d, setting multicast filter to",
-                          dev->name, lp->addr_mode);
-               for (i = 0; i < 8; i++)
-                       printk(" %2.2x", mc_filter[i]);
-               printk(".\n");
-       }
-
-       write_reg_high(ioaddr, CMR2, lp->addr_mode);
-    write_reg(ioaddr, CMR2, CMR2_IRQOUT); /* Switch back to page 0 */
-}
-
-static void set_rx_mode(struct net_device *dev)
-{
-       struct net_local *lp = netdev_priv(dev);
-
-       if (lp->chip_type == RTL8002)
-               return set_rx_mode_8002(dev);
-       else
-               return set_rx_mode_8012(dev);
-}
-
-
 static int __init atp_init_module(void) {
        if (debug)                                      /* Emit version even if no cards detected. */
                printk(KERN_INFO "%s", version);

diff --git a/drivers/net/ethernet/realtek/atp.h b/drivers/net/ethernet/realtek/atp.h
index 0edc642..040b137 100644 (file)
--- a/drivers/net/ethernet/realtek/atp.h
+++ b/drivers/net/ethernet/realtek/atp.h
@@ -16,8 +16,6 @@ struct rx_header {
 #define PAR_STATUS     1
 #define PAR_CONTROL 2
 
-enum chip_type { RTL8002, RTL8012 };
-
 #define Ctrl_LNibRead  0x08    /* LP_PSELECP */
 #define Ctrl_HNibRead  0
 #define Ctrl_LNibWrite 0x08    /* LP_PSELECP */