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authorDavid S. Miller <davem@davemloft.net>2009-03-18 23:53:57 -0700
committerDavid S. Miller <davem@davemloft.net>2009-03-18 23:53:57 -0700
commit0702b30dd821ac8a4103ddbe545518713fdca9be (patch)
tree8ce0c9f5e58c5ccb99870505eecd139986caa05e /arch/blackfin/kernel/irqchip.c
parent192d7a4667c6d11d1a174ec4cad9a3c5d5f9043c (diff)
parenta1e4ee22863d41a6fbb24310d7951836cb6dafe7 (diff)
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Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'arch/blackfin/kernel/irqchip.c')
-rw-r--r--arch/blackfin/kernel/irqchip.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/arch/blackfin/kernel/irqchip.c b/arch/blackfin/kernel/irqchip.c
index 75724ee..7fd1265 100644
--- 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);