Merge tag 'v3.4-rc5' into next

Linux 3.4-rc5

Merge to pull in prerequisite change for Smack:
86812bb0de1a3758dc6c7aa01a763158a7c0638a

Requested by Casey.

1 files changed, 4 insertions, 5 deletions

diff --git a/arch/arm/common/vic.c b/arch/arm/common/vic.c
index 7a66311f306..7e288f96ced 100644
--- a/arch/arm/common/vic.c
+++ b/arch/arm/common/vic.c
@@ -427,19 +427,18 @@ int __init vic_of_init(struct device_node *node, struct device_node *parent)
 
 /*
  * Handle each interrupt in a single VIC.  Returns non-zero if we've
- * handled at least one interrupt.  This does a single read of the
- * status register and handles all interrupts in order from LSB first.
+ * handled at least one interrupt.  This reads the status register
+ * before handling each interrupt, which is necessary given that
+ * handle_IRQ may briefly re-enable interrupts for soft IRQ handling.
  */
 static int handle_one_vic(struct vic_device *vic, struct pt_regs *regs)
 {
         u32 stat, irq;
         int handled = 0;
 
-        stat = readl_relaxed(vic->base + VIC_IRQ_STATUS);
-        while (stat) {
+        while ((stat = readl_relaxed(vic->base + VIC_IRQ_STATUS))) {
                 irq = ffs(stat) - 1;
                 handle_IRQ(irq_find_mapping(vic->domain, irq), regs);
-                stat &= ~(1 << irq);
                 handled = 1;
         }