diff options
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2020-09-29 23:25:27 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-30 00:02:54 +0300 |
| commit | a1f467463ce0cf8515b1a619f3bbfa37fd6fa7b3 (patch) | |
| tree | 9b2ba8861404fcdb6d04a55831e14f0a71dbf6ae /drivers/net/ethernet | |
| parent | d08749ea3fd5a6a7713fdb4d52501e484eff29c4 (diff) | |
| download | linux-a1f467463ce0cf8515b1a619f3bbfa37fd6fa7b3.tar.xz | |
net: sun3lance: Remove redundant checks in interrupt handler
lance_interrupt() contains two pointless checks:
- A check whether the 'dev_id' argument is NULL. 'dev_id' is the pointer
which was handed in to request_irq() and the interrupt handler will
always be invoked with that pointer as 'dev_id' argument by the core
code.
- A check for interrupt reentrancy. The core code already guarantees
non-reentrancy of interrupt handlers.
Remove these check.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/amd/sun3lance.c | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/drivers/net/ethernet/amd/sun3lance.c b/drivers/net/ethernet/amd/sun3lance.c index e1fde585fd0d..00ae1081254d 100644 --- a/drivers/net/ethernet/amd/sun3lance.c +++ b/drivers/net/ethernet/amd/sun3lance.c @@ -657,16 +657,6 @@ static irqreturn_t lance_interrupt( int irq, void *dev_id) struct net_device *dev = dev_id; struct lance_private *lp = netdev_priv(dev); int csr0; - static int in_interrupt; - - if (dev == NULL) { - DPRINTK( 1, ( "lance_interrupt(): invalid dev_id\n" )); - return IRQ_NONE; - } - - if (in_interrupt) - DPRINTK( 2, ( "%s: Re-entering the interrupt handler.\n", dev->name )); - in_interrupt = 1; still_more: flush_cache_all(); @@ -774,7 +764,6 @@ static irqreturn_t lance_interrupt( int irq, void *dev_id) DPRINTK( 2, ( "%s: exiting interrupt, csr0=%#04x.\n", dev->name, DREG )); - in_interrupt = 0; return IRQ_HANDLED; } |