linux-kernel - [RFC PATCH 4/8] ARM: smp: Move cpu initialization directly to ipi_cpu

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Date:	Mon, 18 Jun 2012 13:30:07 +0200
From:	Michal Simek <monstr@...str.eu>
To:	linux-kernel@...r.kernel.org
Cc:	Russell King <linux@....linux.org.uk>,
	Marc Zyngier <marc.zyngier@....com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Will Deacon <will.deacon@....com>,
	Rob Herring <rob.herring@...xeda.com>,
	Nicolas Pitre <nicolas.pitre@...aro.org>,
	linux-arm-kernel@...ts.infradead.org,
	Ohad Ben-Cohen <ohad@...ery.com>,
	Peter Crosthwaite <peter.crosthwaite@...alogix.com>,
	Michal Simek <monstr@...str.eu>
Subject: [RFC PATCH 4/8] ARM: smp: Move cpu initialization directly to ipi_cpu_stop

This is just preparation patch for dynamic IPI allocation.

Signed-off-by: Michal Simek <monstr@...str.eu>
---
 arch/arm/kernel/smp.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 2c7217d..47406ee 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -468,8 +468,10 @@ static DEFINE_RAW_SPINLOCK(stop_lock);
 /*
  * ipi_cpu_stop - handle IPI from smp_send_stop()
  */
-static void ipi_cpu_stop(unsigned int cpu)
+static void ipi_cpu_stop(void)
 {
+	unsigned int cpu = smp_processor_id();
+
 	if (system_state == SYSTEM_BOOTING ||
 	    system_state == SYSTEM_RUNNING) {
 		raw_spin_lock(&stop_lock);
@@ -528,7 +530,7 @@ void handle_IPI(int ipinr, struct pt_regs *regs)
 
 	case IPI_CPU_STOP:
 		irq_enter();
-		ipi_cpu_stop(cpu);
+		ipi_cpu_stop();
 		irq_exit();
 		break;
 
-- 
1.7.0.4

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