[MIPS] Alchemy: replace ffs() with __ffs()

Fix havoc wrought by commit 56f621c7f6f735311eed3f36858b402013023c18 --
au_ffs() and ffs() are equivalent, that patch should have just replaced one
with another.  Now replace ffs() with __ffs() which returns an unbiased bit
number.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/mips/au1000/pb1200/irqmap.c b/arch/mips/au1000/pb1200/irqmap.c
index c096be4ed4e7..8fcd0df86f93 100644
--- a/arch/mips/au1000/pb1200/irqmap.c
+++ b/arch/mips/au1000/pb1200/irqmap.c
@@ -74,7 +74,7 @@ irqreturn_t pb1200_cascade_handler( int irq, void *dev_id)
         bcsr->int_status = bisr;
         for( ; bisr; bisr &= (bisr-1) )
         {
-                extirq_nr = PB1200_INT_BEGIN + ffs(bisr);
+                extirq_nr = PB1200_INT_BEGIN + __ffs(bisr);
                 /* Ack and dispatch IRQ */
                 do_IRQ(extirq_nr);
         }