From: J. K. Cliburn <jcliburn@gmail.com>
Date: Tue, 11 Nov 2008 22:21:48 +0000 (-0600)
Subject: atl1e: fix broken multicast by removing unnecessary crc inversion
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=7ee0fddfe05f105d3346aa8774695e7130697836;p=linux-beck.git

atl1e: fix broken multicast by removing unnecessary crc inversion

Inverting the crc after calling ether_crc_le() is unnecessary and breaks
multicast. Remove it.

Tested-by: David Madore <david.madore@ens.fr>
Signed-off-by: Jay Cliburn <jcliburn@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---

diff --git a/drivers/net/atl1e/atl1e_hw.c b/drivers/net/atl1e/atl1e_hw.c
index 8cbc1b59bd62..4a7700620119 100644
--- a/drivers/net/atl1e/atl1e_hw.c
+++ b/drivers/net/atl1e/atl1e_hw.c
@@ -163,9 +163,6 @@ int atl1e_read_mac_addr(struct atl1e_hw *hw)
  * atl1e_hash_mc_addr
  *  purpose
  *      set hash value for a multicast address
- *      hash calcu processing :
- *          1. calcu 32bit CRC for multicast address
- *          2. reverse crc with MSB to LSB
  */
 u32 atl1e_hash_mc_addr(struct atl1e_hw *hw, u8 *mc_addr)
 {
@@ -174,7 +171,6 @@ u32 atl1e_hash_mc_addr(struct atl1e_hw *hw, u8 *mc_addr)
 	int i;
 
 	crc32 = ether_crc_le(6, mc_addr);
-	crc32 = ~crc32;
 	for (i = 0; i < 32; i++)
 		value |= (((crc32 >> i) & 1) << (31 - i));