Prefer 'void *dev_id' argument for passing data from request_irq() to
each per-irq handler invocation.

This change's main purpose is to prepare for the patchset in
jgarzik/misc-2.6.git#irq-remove, that explores removal of the
never-used 'irq' argument in each interrupt handler.

Signed-off-by: Jeff Garzik
---
arch/x86/kernel/vm86_32.c | 7 ++++---
1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index 38f566f..e610c08 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -735,9 +735,9 @@ static int irqbits;
| (1 << SIGUSR1) | (1 << SIGUSR2) | (1 << SIGIO) | (1 << SIGURG) \
| (1 << SIGUNUSED))

-static irqreturn_t irq_handler(int intno, void *dev_id)
+static irqreturn_t irq_handler(int dummy, void *dev_id)
{
- int irq_bit;
+ int irq_bit, intno = (int)(unsigned long) dev_id;
unsigned long flags;

spin_lock_irqsave(&irqbits_lock, flags);
@@ -818,7 +818,8 @@ static int do_vm86_irq_handling(int subfunction, int irqnumber)
if (!((1 << sig) & ALLOWED_SIGS)) return -EPERM;
if (invalid_vm86_irq(irq)) return -EPERM;
if (vm86_irqs[irq].tsk) return -EPERM;
- ret = request_irq(irq, &irq_handler, 0, VM86_IRQNAME, NULL);
+ ret = request_irq(irq, irq_handler, 0, VM86_IRQNAME,
+ (void *)(unsigned long) irq);
if (ret) return ret;
vm86_irqs[irq].sig = sig;
vm86_irqs[irq].tsk = current;
--
1.5.4.1

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