[M68KNOMMU]: fix fec driver interrupt races

[Greg Ungerer]

The FEC driver has a common interrupt handler for all interrupt event
types. It is raised on a number of distinct interrupt vectors.
This handler can't be re-entered while processing an interrupt, so
make sure all requested vectors are flagged as IRQF_DISABLED.

Signed-off-by: Greg Ungerer <gerg@xxxxxxxxxxx>
---

diff -Naurp linux-2.6.25-rc3/drivers/net/fec.c linux-2.6.25-rc3.foo/drivers/net/fec.c
--- linux-2.6.25-rc3/drivers/net/fec.c	2008-01-25 08:58:37.000000000 +1000
+++ linux-2.6.25-rc3.foo/drivers/net/fec.c	2008-03-04 16:38:31.000000000 +1000
@@ -1253,7 +1253,7 @@ static void __inline__ fec_request_intrs
 
 	/* Setup interrupt handlers. */
 	for (idp = id; idp->name; idp++) {
-		if (request_irq(idp->irq, idp->handler, 0, idp->name, dev) != 0)
+		if (request_irq(idp->irq, idp->handler, IRQF_DISABLED, idp->name, dev) != 0)
 			printk("FEC: Could not allocate %s IRQ(%d)!\n", idp->name, idp->irq);
 	}
 
@@ -1382,7 +1382,7 @@ static void __inline__ fec_request_intrs
 
 	/* Setup interrupt handlers. */
 	for (idp = id; idp->name; idp++) {
-		if (request_irq(b+idp->irq, fec_enet_interrupt, 0, idp->name, dev) != 0)
+		if (request_irq(b+idp->irq, fec_enet_interrupt, IRQF_DISABLED, idp->name, dev) != 0)
 			printk("FEC: Could not allocate %s IRQ(%d)!\n", idp->name, b+idp->irq);
 	}
 
@@ -1553,7 +1553,7 @@ static void __inline__ fec_request_intrs
 
 	/* Setup interrupt handlers. */
 	for (idp = id; idp->name; idp++) {
-		if (request_irq(b+idp->irq,fec_enet_interrupt,0,idp->name,dev)!=0)
+		if (request_irq(b+idp->irq, fec_enet_interrupt, IRQF_DISABLED, idp->name,dev) != 0)
 			printk("FEC: Could not allocate %s IRQ(%d)!\n", idp->name, b+idp->irq);
 	}
 
@@ -1680,7 +1680,7 @@ static void __inline__ fec_request_intrs
 
 	/* Setup interrupt handlers. */
 	for (idp = id; idp->name; idp++) {
-		if (request_irq(b+idp->irq,fec_enet_interrupt,0,idp->name,dev)!=0)
+		if (request_irq(b+idp->irq, fec_enet_interrupt, IRQF_DISABLED, idp->name,dev) != 0)
 			printk("FEC: Could not allocate %s IRQ(%d)!\n",
 				idp->name, b+idp->irq);
 	}
--
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