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Message-ID: <20070130093328.GB24436@elte.hu>
Date: Tue, 30 Jan 2007 10:33:28 +0100
From: Ingo Molnar <mingo@...e.hu>
To: linux-kernel@...r.kernel.org
Cc: Andrew Morton <akpm@...l.org>, Thomas Gleixner <tglx@...utronix.de>
Subject: [patch] genirq: remove IRQ_DISABLED
Subject: [patch] genirq: remove IRQ_DISABLED
From: Ingo Molnar <mingo@...e.hu>
now that disable_irq() defaults to delayed-disable semantics, the
IRQ_DISABLED flag is not needed anymore.
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
arch/arm/kernel/irq.c | 3 +--
arch/i386/kernel/io_apic.c | 4 +---
arch/powerpc/platforms/powermac/pic.c | 2 --
arch/x86_64/kernel/io_apic.c | 4 +---
include/linux/irq.h | 7 +++----
5 files changed, 6 insertions(+), 14 deletions(-)
Index: linux/arch/arm/kernel/irq.c
===================================================================
--- linux.orig/arch/arm/kernel/irq.c
+++ linux/arch/arm/kernel/irq.c
@@ -159,8 +159,7 @@ void __init init_IRQ(void)
int irq;
for (irq = 0; irq < NR_IRQS; irq++)
- irq_desc[irq].status |= IRQ_NOREQUEST | IRQ_DELAYED_DISABLE |
- IRQ_NOPROBE;
+ irq_desc[irq].status |= IRQ_NOREQUEST | IRQ_NOPROBE;
#ifdef CONFIG_SMP
bad_irq_desc.affinity = CPU_MASK_ALL;
Index: linux/arch/i386/kernel/io_apic.c
===================================================================
--- linux.orig/arch/i386/kernel/io_apic.c
+++ linux/arch/i386/kernel/io_apic.c
@@ -1275,11 +1275,9 @@ static void ioapic_register_intr(int irq
trigger == IOAPIC_LEVEL)
set_irq_chip_and_handler_name(irq, &ioapic_chip,
handle_fasteoi_irq, "fasteoi");
- else {
- irq_desc[irq].status |= IRQ_DELAYED_DISABLE;
+ else
set_irq_chip_and_handler_name(irq, &ioapic_chip,
handle_edge_irq, "edge");
- }
set_intr_gate(vector, interrupt[irq]);
}
Index: linux/arch/powerpc/platforms/powermac/pic.c
===================================================================
--- linux.orig/arch/powerpc/platforms/powermac/pic.c
+++ linux/arch/powerpc/platforms/powermac/pic.c
@@ -305,8 +305,6 @@ static int pmac_pic_host_map(struct irq_
level = !!(level_mask[hw >> 5] & (1UL << (hw & 0x1f)));
if (level)
desc->status |= IRQ_LEVEL;
- else
- desc->status |= IRQ_DELAYED_DISABLE;
set_irq_chip_and_handler(virq, &pmac_pic, level ?
handle_level_irq : handle_edge_irq);
return 0;
Index: linux/arch/x86_64/kernel/io_apic.c
===================================================================
--- linux.orig/arch/x86_64/kernel/io_apic.c
+++ linux/arch/x86_64/kernel/io_apic.c
@@ -810,11 +810,9 @@ static void ioapic_register_intr(int irq
trigger == IOAPIC_LEVEL)
set_irq_chip_and_handler_name(irq, &ioapic_chip,
handle_fasteoi_irq, "fasteoi");
- else {
- irq_desc[irq].status |= IRQ_DELAYED_DISABLE;
+ else
set_irq_chip_and_handler_name(irq, &ioapic_chip,
handle_edge_irq, "edge");
- }
}
static void __init setup_IO_APIC_irq(int apic, int pin, int idx, int irq)
{
Index: linux/include/linux/irq.h
===================================================================
--- linux.orig/include/linux/irq.h
+++ linux/include/linux/irq.h
@@ -57,10 +57,9 @@ typedef void fastcall (*irq_flow_handler
#define IRQ_NOPROBE 0x00020000 /* IRQ is not valid for probing */
#define IRQ_NOREQUEST 0x00040000 /* IRQ cannot be requested */
#define IRQ_NOAUTOEN 0x00080000 /* IRQ will not be enabled on request irq */
-#define IRQ_DELAYED_DISABLE 0x00100000 /* IRQ disable (masking) happens delayed. */
-#define IRQ_WAKEUP 0x00200000 /* IRQ triggers system wakeup */
-#define IRQ_MOVE_PENDING 0x00400000 /* need to re-target IRQ destination */
-#define IRQ_NO_BALANCING 0x00800000 /* IRQ is excluded from balancing */
+#define IRQ_WAKEUP 0x00100000 /* IRQ triggers system wakeup */
+#define IRQ_MOVE_PENDING 0x00200000 /* need to re-target IRQ destination */
+#define IRQ_NO_BALANCING 0x00400000 /* IRQ is excluded from balancing */
#ifdef CONFIG_IRQ_PER_CPU
# define CHECK_IRQ_PER_CPU(var) ((var) & IRQ_PER_CPU)
-
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