netdev - [net-next 3/8] igb: limit udelay for phy changes to 10000us

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Date:	Thu, 25 Apr 2013 21:57:06 -0700
From:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:	davem@...emloft.net
Cc:	Andi Kleen <ak@...ux.intel.com>, netdev@...r.kernel.org,
	gospo@...hat.com, sassmann@...hat.com,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 3/8] igb: limit udelay for phy changes to 10000us

From: Andi Kleen <ak@...ux.intel.com>

If you really want 100000us you should really use mdelay or so.

Found by the LTO kernel build

Signed-off-by: Andi Kleen <ak@...ux.intel.com>
Tested-by: Aaron Brown <aaron.f.brown@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
 drivers/net/ethernet/intel/igb/e1000_phy.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/igb/e1000_phy.c b/drivers/net/ethernet/intel/igb/e1000_phy.c
index fd46add..115b0da 100644
--- a/drivers/net/ethernet/intel/igb/e1000_phy.c
+++ b/drivers/net/ethernet/intel/igb/e1000_phy.c
@@ -1130,7 +1130,7 @@ s32 igb_phy_force_speed_duplex_igp(struct e1000_hw *hw)
 	if (phy->autoneg_wait_to_complete) {
 		hw_dbg("Waiting for forced speed/duplex link on IGP phy.\n");
 
-		ret_val = igb_phy_has_link(hw, PHY_FORCE_LIMIT, 100000, &link);
+		ret_val = igb_phy_has_link(hw, PHY_FORCE_LIMIT, 10000, &link);
 		if (ret_val)
 			goto out;
 
@@ -1138,7 +1138,7 @@ s32 igb_phy_force_speed_duplex_igp(struct e1000_hw *hw)
 			hw_dbg("Link taking longer than expected.\n");
 
 		/* Try once more */
-		ret_val = igb_phy_has_link(hw, PHY_FORCE_LIMIT, 100000, &link);
+		ret_val = igb_phy_has_link(hw, PHY_FORCE_LIMIT, 10000, &link);
 		if (ret_val)
 			goto out;
 	}
@@ -1590,7 +1590,7 @@ s32 igb_phy_has_link(struct e1000_hw *hw, u32 iterations,
 		 * it across the board.
 		 */
 		ret_val = hw->phy.ops.read_reg(hw, PHY_STATUS, &phy_status);
-		if (ret_val) {
+		if (ret_val && usec_interval > 0) {
 			/* If the first read fails, another entity may have
 			 * ownership of the resources, wait and try again to
 			 * see if they have relinquished the resources yet.
-- 
1.7.11.7

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