From: Jia-Ju Bai <baijiaju1990@gmail.com>
Date: Fri, 27 Jul 2018 16:07:38 +0800
Subject: igb: Replace mdelay() with msleep() in igb_integrated_phy_loopback()
Patch-mainline: v4.19-rc2
Git-commit: 69a64658de502c8ca383fe2c5a5208f00b5844cd
References: bsc#1117495

igb_integrated_phy_loopback() is never called in atomic context.
It calls mdelay() to busily wait, which is not necessary.
mdelay() can be replaced with msleep().

This is found by a static analysis tool named DCNS written by myself.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/intel/igb/igb_ethtool.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -1669,7 +1669,7 @@ static int igb_integrated_phy_loopback(s
 	if (hw->phy.type == e1000_phy_m88)
 		igb_phy_disable_receiver(adapter);
 
-	mdelay(500);
+	msleep(500);
 	return 0;
 }