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path: root/drivers/net/ethernet/intel/igb/e1000_mac.c
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Diffstat (limited to 'drivers/net/ethernet/intel/igb/e1000_mac.c')
-rw-r--r--drivers/net/ethernet/intel/igb/e1000_mac.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/igb/e1000_mac.c b/drivers/net/ethernet/intel/igb/e1000_mac.c
index 205d577bdbba..caf91c6f52b4 100644
--- a/drivers/net/ethernet/intel/igb/e1000_mac.c
+++ b/drivers/net/ethernet/intel/igb/e1000_mac.c
@@ -426,7 +426,7 @@ void igb_mta_set(struct e1000_hw *hw, u32 hash_value)
static u32 igb_hash_mc_addr(struct e1000_hw *hw, u8 *mc_addr)
{
u32 hash_value, hash_mask;
- u8 bit_shift = 0;
+ u8 bit_shift = 1;
/* Register count multiplied by bits per register */
hash_mask = (hw->mac.mta_reg_count * 32) - 1;
@@ -434,7 +434,7 @@ static u32 igb_hash_mc_addr(struct e1000_hw *hw, u8 *mc_addr)
/* For a mc_filter_type of 0, bit_shift is the number of left-shifts
* where 0xFF would still fall within the hash mask.
*/
- while (hash_mask >> bit_shift != 0xFF)
+ while (hash_mask >> bit_shift != 0xFF && bit_shift < 4)
bit_shift++;
/* The portion of the address that is used for the hash table