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authorBruce Allan <bruce.w.allan@intel.com>2011-01-06 14:29:51 +0000
committerDavid S. Miller <davem@davemloft.net>2011-01-09 23:44:08 -0800
commitfe46f58fa61f025564a3c1e80b789885cb4b0f30 (patch)
tree6ec14729d0ccb1df72b4e63574dcadec79f8e496 /drivers/net/e1000e/ich8lan.c
parente0dc4f125456e57347a6d016bd7209f064135b1d (diff)
e1000e: use either_crc_le() rather than re-write it
For the 82579 jumbo frame workaround, there is no need to re-write the CRC calculation functionality already found in the kernel's ether_crc_le(). Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/e1000e/ich8lan.c')
-rw-r--r--drivers/net/e1000e/ich8lan.c19
1 files changed, 1 insertions, 18 deletions
diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c
index 902e4935f3e..5328a292773 100644
--- a/drivers/net/e1000e/ich8lan.c
+++ b/drivers/net/e1000e/ich8lan.c
@@ -1395,22 +1395,6 @@ void e1000_copy_rx_addrs_to_phy_ich8lan(struct e1000_hw *hw)
}
}
-static u32 e1000_calc_rx_da_crc(u8 mac[])
-{
- u32 poly = 0xEDB88320; /* Polynomial for 802.3 CRC calculation */
- u32 i, j, mask, crc;
-
- crc = 0xffffffff;
- for (i = 0; i < 6; i++) {
- crc = crc ^ mac[i];
- for (j = 8; j > 0; j--) {
- mask = (crc & 1) * (-1);
- crc = (crc >> 1) ^ (poly & mask);
- }
- }
- return ~crc;
-}
-
/**
* e1000_lv_jumbo_workaround_ich8lan - required for jumbo frame operation
* with 82579 PHY
@@ -1453,8 +1437,7 @@ s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable)
mac_addr[4] = (addr_high & 0xFF);
mac_addr[5] = ((addr_high >> 8) & 0xFF);
- ew32(PCH_RAICC(i),
- e1000_calc_rx_da_crc(mac_addr));
+ ew32(PCH_RAICC(i), ~ether_crc_le(ETH_ALEN, mac_addr));
}
/* Write Rx addresses to the PHY */