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

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Fix havoc wrought by commit 56f621c7f6 --
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>
This commit is contained in:
Sergei Shtylyov 2007-12-05 19:08:24 +03:00 committed by Ralf Baechle
parent f435a91e66
commit 4b36673284
3 changed files with 6 additions and 6 deletions
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2
arch/mips/au1000/common/dbdma.c
View file

@ -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;

8
arch/mips/au1000/common/irq.c
View file

@ -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);
}

2
arch/mips/au1000/pb1200/irqmap.c
View file

@ -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);
}