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staging: unisys: visornic: Reorder logic in visornic_enable_with_timeout() 

Moves the call to napi_enable() before the call to init_rcv_bufs(),
ensuring that messages are not put into the receive queue until the guest
is ready to receive interrupts.

Signed-off-by: David Binder <david.binder@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
David Binder 2017-01-09 13:02:25 -05:00 committed by Greg Kroah-Hartman
parent 4b3d7b6d84
commit 6219e49333
1 changed files with 2 additions and 1 deletions
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3
drivers/staging/unisys/visornic/visornic_main.c
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@ -572,6 +572,8 @@ visornic_enable_with_timeout(struct net_device *netdev, const int timeout)
unsigned long flags; unsigned long flags;
int wait = 0; int wait = 0;
napi_enable(&devdata->napi);
/* NOTE: the other end automatically unposts the rcv buffers when it /* NOTE: the other end automatically unposts the rcv buffers when it
* gets a disable. * gets a disable.
*/ */
@ -595,7 +597,6 @@ visornic_enable_with_timeout(struct net_device *netdev, const int timeout)
/* send enable and wait for ack -- don't hold lock when sending enable /* send enable and wait for ack -- don't hold lock when sending enable
* because if the queue is full, insert might sleep. * because if the queue is full, insert might sleep.
*/ */
napi_enable(&devdata->napi);
send_enbdis(netdev, 1, devdata); send_enbdis(netdev, 1, devdata);
spin_lock_irqsave(&devdata->priv_lock, flags); spin_lock_irqsave(&devdata->priv_lock, flags);