2019-09-19 14:43:19 +00:00
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From ffa437377a6121234cd85d3bd2a8d8c43f0bedd5 Mon Sep 17 00:00:00 2001
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2019-07-09 18:32:28 +00:00
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Mon, 11 Dec 2017 09:18:32 +0000
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2019-12-23 12:42:55 +00:00
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Subject: [PATCH] ARM: Activate FIQs to avoid __irq_startup warnings
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2019-07-09 18:32:28 +00:00
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There is a new test in __irq_startup that the IRQ is activated, which
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hasn't been the case for FIQs since they bypass some of the usual setup.
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Augment enable_fiq to include a call to irq_activate to avoid the
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warning.
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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arch/arm/kernel/fiq.c | 4 ++++
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1 file changed, 4 insertions(+)
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--- a/arch/arm/kernel/fiq.c
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+++ b/arch/arm/kernel/fiq.c
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@@ -56,6 +56,8 @@
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static unsigned long dfl_fiq_insn;
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static struct pt_regs dfl_fiq_regs;
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+extern int irq_activate(struct irq_desc *desc);
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+
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/* Default reacquire function
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* - we always relinquish FIQ control
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* - we always reacquire FIQ control
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@@ -140,6 +142,8 @@ static int fiq_start;
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void enable_fiq(int fiq)
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{
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+ struct irq_desc *desc = irq_to_desc(fiq + fiq_start);
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+ irq_activate(desc);
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enable_irq(fiq + fiq_start);
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}
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