linux-kernel - [PATCH 09/19] irqchip: mips-gic: Remove gic_{pending,itrmask}

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Date:	Mon, 20 Oct 2014 12:03:56 -0700
From:	Andrew Bresticker <abrestic@...omium.org>
To:	Ralf Baechle <ralf@...ux-mips.org>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Jason Cooper <jason@...edaemon.net>
Cc:	Andrew Bresticker <abrestic@...omium.org>,
	Paul Burton <paul.burton@...tec.com>,
	Qais Yousef <qais.yousef@...tec.com>,
	John Crispin <blogic@...nwrt.org>, linux-mips@...ux-mips.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 09/19] irqchip: mips-gic: Remove gic_{pending,itrmask}_regs

There's no reason for the pending and masked interrupt bitmasks
to be global.  Just declare them on the stack in gic_get_int()
since they only consume (256*2)/8 = 64 bytes.

Signed-off-by: Andrew Bresticker <abrestic@...omium.org>
---
 drivers/irqchip/irq-mips-gic.c | 16 +++-------------
 1 file changed, 3 insertions(+), 13 deletions(-)

diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c
index a1ccde6..188760c 100644
--- a/drivers/irqchip/irq-mips-gic.c
+++ b/drivers/irqchip/irq-mips-gic.c
@@ -25,18 +25,8 @@ struct gic_pcpu_mask {
 	DECLARE_BITMAP(pcpu_mask, GIC_MAX_INTRS);
 };
 
-struct gic_pending_regs {
-	DECLARE_BITMAP(pending, GIC_MAX_INTRS);
-};
-
-struct gic_intrmask_regs {
-	DECLARE_BITMAP(intrmask, GIC_MAX_INTRS);
-};
-
 static void __iomem *gic_base;
 static struct gic_pcpu_mask pcpu_masks[NR_CPUS];
-static struct gic_pending_regs pending_regs[NR_CPUS];
-static struct gic_intrmask_regs intrmask_regs[NR_CPUS];
 static DEFINE_SPINLOCK(gic_lock);
 static struct irq_domain *gic_irq_domain;
 static int gic_shared_intrs;
@@ -242,12 +232,12 @@ int gic_get_c0_perfcount_int(void)
 static unsigned int gic_get_int(void)
 {
 	unsigned int i;
-	unsigned long *pending, *intrmask, *pcpu_mask;
+	unsigned long *pcpu_mask;
 	unsigned long pending_reg, intrmask_reg;
+	DECLARE_BITMAP(pending, GIC_MAX_INTRS);
+	DECLARE_BITMAP(intrmask, GIC_MAX_INTRS);
 
 	/* Get per-cpu bitmaps */
-	pending = pending_regs[smp_processor_id()].pending;
-	intrmask = intrmask_regs[smp_processor_id()].intrmask;
 	pcpu_mask = pcpu_masks[smp_processor_id()].pcpu_mask;
 
 	pending_reg = GIC_REG(SHARED, GIC_SH_PEND);
-- 
2.1.0.rc2.206.gedb03e5

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