From 47f66c766c8d91fe0a20b85359ce13e467863697 Mon Sep 17 00:00:00 2001 From: Anna-Maria Gleixner Date: Fri, 4 May 2018 17:17:48 +0200 Subject: [PATCH] net: 3com: 3c59x: Pull locking out of ISR Locking is done in the same way in _vortex_interrupt() and _boomerang_interrupt(). To prevent duplication, move the locking into the calling vortex_boomerang_interrupt() function. No functional change. Cc: Steffen Klassert Signed-off-by: Anna-Maria Gleixner Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: David S. Miller --- drivers/net/ethernet/3com/3c59x.c | 20 +++++++++----------- 1 file changed, 9 insertions(+), 11 deletions(-) diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c index 0cfdb07f3e59..fdafe25da153 100644 --- a/drivers/net/ethernet/3com/3c59x.c +++ b/drivers/net/ethernet/3com/3c59x.c @@ -2273,7 +2273,6 @@ _vortex_interrupt(int irq, struct net_device *dev) unsigned int bytes_compl = 0, pkts_compl = 0; ioaddr = vp->ioaddr; - spin_lock(&vp->lock); status = ioread16(ioaddr + EL3_STATUS); @@ -2371,7 +2370,6 @@ _vortex_interrupt(int irq, struct net_device *dev) pr_debug("%s: exiting interrupt, status %4.4x.\n", dev->name, status); handler_exit: - spin_unlock(&vp->lock); return IRQ_RETVAL(handled); } @@ -2392,12 +2390,6 @@ _boomerang_interrupt(int irq, struct net_device *dev) ioaddr = vp->ioaddr; - - /* - * It seems dopey to put the spinlock this early, but we could race against vortex_tx_timeout - * and boomerang_start_xmit - */ - spin_lock(&vp->lock); vp->handling_irq = 1; status = ioread16(ioaddr + EL3_STATUS); @@ -2516,7 +2508,6 @@ _boomerang_interrupt(int irq, struct net_device *dev) dev->name, status); handler_exit: vp->handling_irq = 0; - spin_unlock(&vp->lock); return IRQ_RETVAL(handled); } @@ -2525,11 +2516,18 @@ vortex_boomerang_interrupt(int irq, void *dev_id) { struct net_device *dev = dev_id; struct vortex_private *vp = netdev_priv(dev); + irqreturn_t ret; + + spin_lock(&vp->lock); if (vp->full_bus_master_rx) - return _boomerang_interrupt(dev->irq, dev); + ret = _boomerang_interrupt(dev->irq, dev); else - return _vortex_interrupt(dev->irq, dev); + ret = _vortex_interrupt(dev->irq, dev); + + spin_unlock(&vp->lock); + + return ret; } static int vortex_rx(struct net_device *dev)