Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (103 commits)
  powerpc: Fix bug in move of altivec code to vector.S
  powerpc: Add support for swiotlb on 32-bit
  powerpc/spufs: Remove unused error path
  powerpc: Fix warning when printing a resource_size_t
  powerpc/xmon: Remove unused variable in xmon.c
  powerpc/pseries: Fix warnings when printing resource_size_t
  powerpc: Shield code specific to 64-bit server processors
  powerpc: Separate PACA fields for server CPUs
  powerpc: Split exception handling out of head_64.S
  powerpc: Introduce CONFIG_PPC_BOOK3S
  powerpc: Move VMX and VSX asm code to vector.S
  powerpc: Set init_bootmem_done on NUMA platforms as well
  powerpc/mm: Fix a AB->BA deadlock scenario with nohash MMU context lock
  powerpc/mm: Fix some SMP issues with MMU context handling
  powerpc: Add PTRACE_SINGLEBLOCK support
  fbdev: Add PLB support and cleanup DCR in xilinxfb driver.
  powerpc/virtex: Add ml510 reference design device tree
  powerpc/virtex: Add Xilinx ML510 reference design support
  powerpc/virtex: refactor intc driver and add support for i8259 cascading
  powerpc/virtex: Add support for Xilinx PCI host bridge
  ...

1 files changed, 11 insertions, 12 deletions

diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 352d8c3ef526..9c3af5045495 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -613,23 +613,23 @@ static int irq_choose_cpu(unsigned int virt_irq)
 #define mpic_irq_to_hw(virq)    ((unsigned int)irq_map[virq].hwirq)
 
 /* Find an mpic associated with a given linux interrupt */
-static struct mpic *mpic_find(unsigned int irq, unsigned int *is_ipi)
+static struct mpic *mpic_find(unsigned int irq)
 {
-        unsigned int src = mpic_irq_to_hw(irq);
-        struct mpic *mpic;
-
         if (irq < NUM_ISA_INTERRUPTS)
                 return NULL;
 
-        mpic = irq_desc[irq].chip_data;
+        return irq_desc[irq].chip_data;
+}
 
-        if (is_ipi)
-                *is_ipi = (src >= mpic->ipi_vecs[0] &&
-                           src <= mpic->ipi_vecs[3]);
+/* Determine if the linux irq is an IPI */
+static unsigned int mpic_is_ipi(struct mpic *mpic, unsigned int irq)
+{
+        unsigned int src = mpic_irq_to_hw(irq);
 
-        return mpic;
+        return (src >= mpic->ipi_vecs[0] && src <= mpic->ipi_vecs[3]);
 }
 
+
 /* Convert a cpu mask from logical to physical cpu numbers. */
 static inline u32 mpic_physmask(u32 cpumask)
 {
@@ -1383,8 +1383,7 @@ void __init mpic_set_serial_int(struct mpic *mpic, int enable)
 
 void mpic_irq_set_priority(unsigned int irq, unsigned int pri)
 {
-        unsigned int is_ipi;
-        struct mpic *mpic = mpic_find(irq, &is_ipi);
+        struct mpic *mpic = mpic_find(irq);
         unsigned int src = mpic_irq_to_hw(irq);
         unsigned long flags;
         u32 reg;
@@ -1393,7 +1392,7 @@ void mpic_irq_set_priority(unsigned int irq, unsigned int pri)
                 return;
 
         spin_lock_irqsave(&mpic_lock, flags);
-        if (is_ipi) {
+        if (mpic_is_ipi(mpic, irq)) {
                 reg = mpic_ipi_read(src - mpic->ipi_vecs[0]) &
                         ~MPIC_VECPRI_PRIORITY_MASK;
                 mpic_ipi_write(src - mpic->ipi_vecs[0],