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metag: smp: don't set irq regs in do_IPI() 

Since commit f6b30d32d2 (metag: kick: add missing irq_enter/exit to
kick_handler()), the main kick_handler() function deals with setting and
restoring the irq registers pointer. Therefore do_IPI() which is called
indirectly from kick_handler() doesn't need to do that itself any
longer. Therefore remove that code and do_IPI()'s pt_regs argument.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-metag@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
James Hogan 2013-11-25 11:14:50 +00:00
parent cdf8d75818
commit 5a25f7bb5a
1 changed files with 2 additions and 5 deletions
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7
arch/metag/kernel/smp.c
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@ -517,11 +517,10 @@ static DEFINE_SPINLOCK(stop_lock);
*
* Bit 0 - Inter-processor function call
*/
static int do_IPI(struct pt_regs *regs)
static int do_IPI(void)
{
unsigned int cpu = smp_processor_id();
struct ipi_data *ipi = &per_cpu(ipi_data, cpu);
struct pt_regs *old_regs = set_irq_regs(regs);
unsigned long msgs, nextmsg;
int handled = 0;
@ -557,8 +556,6 @@ static int do_IPI(struct pt_regs *regs)
}
}
set_irq_regs(old_regs);
return handled;
}
@ -624,7 +621,7 @@ static void kick_raise_softirq(cpumask_t callmap, unsigned int irq)
static TBIRES ipi_handler(TBIRES State, int SigNum, int Triggers,
int Inst, PTBI pTBI, int *handled)
{
*handled = do_IPI((struct pt_regs *)State.Sig.pCtx);
*handled = do_IPI();
return State;
}