Merge branches 'irq/genirq' and 'linus' into irq/core

[sfrench/cifs-2.6.git] / arch / blackfin / kernel / irqchip.c

diff --git a/arch/blackfin/kernel/irqchip.c b/arch/blackfin/kernel/irqchip.c
index 2d395c9005c50e6147d1755a7cc7619a92316e85..bd052a67032e467bfef3a4aa30eb6dd1b4bc02e7 100644 (file)
--- a/arch/blackfin/kernel/irqchip.c
+++ b/arch/blackfin/kernel/irqchip.c
@@ -144,11 +144,15 @@ asmlinkage void asm_do_IRQ(unsigned int irq, struct pt_regs *regs)
 #endif
        generic_handle_irq(irq);
 
-#ifndef CONFIG_IPIPE   /* Useless and bugous over the I-pipe: IRQs are threaded. */
-       /* If we're the only interrupt running (ignoring IRQ15 which is for
-          syscalls), lower our priority to IRQ14 so that softirqs run at
-          that level.  If there's another, lower-level interrupt, irq_exit
-          will defer softirqs to that.  */
+#ifndef CONFIG_IPIPE
+       /*
+        * If we're the only interrupt running (ignoring IRQ15 which
+        * is for syscalls), lower our priority to IRQ14 so that
+        * softirqs run at that level.  If there's another,
+        * lower-level interrupt, irq_exit will defer softirqs to
+        * that. If the interrupt pipeline is enabled, we are already
+        * running at IRQ14 priority, so we don't need this code.
+        */
        CSYNC();
        pending = bfin_read_IPEND() & ~0x8000;
        other_ints = pending & (pending - 1);