[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>

3 files changed, 6 insertions, 6 deletions

diff --git a/arch/mips/au1000/common/dbdma.c b/arch/mips/au1000/common/dbdma.c
index 9d6ad43fded6..edf91f41a786 100644
--- a/arch/mips/au1000/common/dbdma.c
+++ b/arch/mips/au1000/common/dbdma.c
@@ -859,7 +859,7 @@ dbdma_interrupt(int irq, void *dev_id)
 
         intstat = dbdma_gptr->ddma_intstat;
         au_sync();
-        chan_index = ffs(intstat);
+        chan_index = __ffs(intstat);
 
         ctp = chan_tab_ptr[chan_index];
         cp = ctp->chan_ptr;
diff --git a/arch/mips/au1000/common/irq.c b/arch/mips/au1000/common/irq.c
index ddfb7f0a17a6..b7f1bbf6d5aa 100644
--- a/arch/mips/au1000/common/irq.c
+++ b/arch/mips/au1000/common/irq.c
@@ -462,7 +462,7 @@ static void intc0_req0_irqdispatch(void)
                 return;
         }
 #endif
-        bit = ffs(intc0_req0);
+        bit = __ffs(intc0_req0);
         intc0_req0 &= ~(1 << bit);
         do_IRQ(MIPS_CPU_IRQ_BASE + bit);
 }
@@ -478,7 +478,7 @@ static void intc0_req1_irqdispatch(void)
         if (!intc0_req1)
                 return;
 
-        bit = ffs(intc0_req1);
+        bit = __ffs(intc0_req1);
         intc0_req1 &= ~(1 << bit);
         do_IRQ(bit);
 }
@@ -498,7 +498,7 @@ static void intc1_req0_irqdispatch(void)
         if (!intc1_req0)
                 return;
 
-        bit = ffs(intc1_req0);
+        bit = __ffs(intc1_req0);
         intc1_req0 &= ~(1 << bit);
         do_IRQ(MIPS_CPU_IRQ_BASE + 32 + bit);
 }
@@ -514,7 +514,7 @@ static void intc1_req1_irqdispatch(void)
         if (!intc1_req1)
                 return;
 
-        bit = ffs(intc1_req1);
+        bit = __ffs(intc1_req1);
         intc1_req1 &= ~(1 << bit);
         do_IRQ(MIPS_CPU_IRQ_BASE + 32 + bit);
 }
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);
         }