i40e/i40evf: Use usleep_range() instead of udelay()

As per the Documentation/timers/timers-howto.txt it is preferred to use
usleep_range() instead of udelay() if the delay value is > 10us in
non-atomic contexts.
So, replacing all the instances of udelay() with 10 or greater than 10
micro seconds delay in the driver and using usleep_range() instead.

Change-ID: Iaa2ab499a4c26f6005e5d86cc421407ef9de16c7
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Neerav Parikh <neerav.parikh@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index c51bc7a33bc5..dabe6a4220c6 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
@@ -1494,7 +1494,7 @@ static void i40evf_reset_task(struct work_struct *work)
 
         while (test_and_set_bit(__I40EVF_IN_CRITICAL_TASK,
                                 &adapter->crit_section))
-                udelay(500);
+                usleep_range(500, 1000);
 
         if (adapter->flags & I40EVF_FLAG_RESET_NEEDED) {
                 dev_info(&adapter->pdev->dev, "Requesting reset from PF\n");
@@ -1980,7 +1980,7 @@ static int i40evf_check_reset_complete(struct i40e_hw *hw)
                 if ((rstat == I40E_VFR_VFACTIVE) ||
                     (rstat == I40E_VFR_COMPLETED))
                         return 0;
-                udelay(10);
+                usleep_range(10, 20);
         }
         return -EBUSY;
 }