ibmvnic: enhance resetting status check during module exit

Based on the discussion with Sukadev Bhattiprolu and Dany Madden,
we believe that checking adapter->resetting bit is preferred
since RESETTING state flag is not as strict as resetting bit.
RESETTING state flag is removed since it is verbose now.

Fixes: 7d7195a026ba ("ibmvnic: Do not process device remove during device reset")
Signed-off-by: Lijun Pan <ljp@linux.ibm.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 26ba07d..2491ebc 100644 (file)
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -2215,7 +2215,6 @@ static void __ibmvnic_reset(struct work_struct *work)
 
                if (!saved_state) {
                        reset_state = adapter->state;
-                       adapter->state = VNIC_RESETTING;
                        saved_state = true;
                }
                spin_unlock_irqrestore(&adapter->state_lock, flags);
@@ -5280,7 +5279,7 @@ static int ibmvnic_remove(struct vio_dev *dev)
        unsigned long flags;
 
        spin_lock_irqsave(&adapter->state_lock, flags);
-       if (adapter->state == VNIC_RESETTING) {
+       if (test_bit(0, &adapter->resetting)) {
                spin_unlock_irqrestore(&adapter->state_lock, flags);
                return -EBUSY;
        }

diff --git a/drivers/net/ethernet/ibm/ibmvnic.h b/drivers/net/ethernet/ibm/ibmvnic.h
index 217dcc7..47a3fd7 100644 (file)
--- a/drivers/net/ethernet/ibm/ibmvnic.h
+++ b/drivers/net/ethernet/ibm/ibmvnic.h
@@ -942,8 +942,7 @@ enum vnic_state {VNIC_PROBING = 1,
                 VNIC_CLOSING,
                 VNIC_CLOSED,
                 VNIC_REMOVING,
-                VNIC_REMOVED,
-                VNIC_RESETTING};
+                VNIC_REMOVED};
 
 enum ibmvnic_reset_reason {VNIC_RESET_FAILOVER = 1,
                           VNIC_RESET_MOBILITY,