linux-kernel - [PATCH v2] ARC: [plat-eznps] remove IPI clear from SMP operations

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Message-ID: <1478599103-5453-1-git-send-email-noamca@mellanox.com>
Date:   Tue, 8 Nov 2016 11:58:23 +0200
From:   Noam Camus <noamca@...lanox.com>
To:     <vgupta@...opsys.com>
CC:     <linux-snps-arc@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, "Noam Camus" <noamca@...lanox.com>
Subject: [PATCH v2] ARC: [plat-eznps] remove IPI clear from SMP operations

From: Noam Camus <noamca@...lanox.com>

Today we register to plat_smp_ops.clear() method which actually
is acking the IPI.
However this is already taking care by our irqchip driver specifically
by the irq_chip.irq_eoi() method.
This is perfect timing where it should be done and no special handling
is needed at plat_smp_ops.clear().

Signed-off-by: Noam Camus <noamca@...lanox.com>
---
 arch/arc/plat-eznps/smp.c |    6 ------
 1 files changed, 0 insertions(+), 6 deletions(-)

diff --git a/arch/arc/plat-eznps/smp.c b/arch/arc/plat-eznps/smp.c
index 5e901f8..56a4c85 100644
--- a/arch/arc/plat-eznps/smp.c
+++ b/arch/arc/plat-eznps/smp.c
@@ -140,16 +140,10 @@ static void eznps_init_per_cpu(int cpu)
 	mtm_enable_core(cpu);
 }
 
-static void eznps_ipi_clear(int irq)
-{
-	write_aux_reg(CTOP_AUX_IACK, 1 << irq);
-}
-
 struct plat_smp_ops plat_smp_ops = {
 	.info		= smp_cpuinfo_buf,
 	.init_early_smp	= eznps_init_cpumasks,
 	.cpu_kick	= eznps_smp_wakeup_cpu,
 	.ipi_send	= eznps_ipi_send,
 	.init_per_cpu	= eznps_init_per_cpu,
-	.ipi_clear	= eznps_ipi_clear,
 };
-- 
1.7.1