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Date: Fri, 16 May 2014 06:34:07 -0700
From: tip-bot for Thomas Gleixner <tipbot@...or.com>
To: linux-tip-commits@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, grant.likely@...aro.org,
hpa@...or.com, mingo@...nel.org, peterz@...radead.org,
tony.luck@...el.com, tglx@...utronix.de
Subject: [tip:irq/core] x86: Remove create/destroy_irq()
Commit-ID: 54859f59fc18e5c104a4095420b3fcef8bc3ae63
Gitweb: http://git.kernel.org/tip/54859f59fc18e5c104a4095420b3fcef8bc3ae63
Author: Thomas Gleixner <tglx@...utronix.de>
AuthorDate: Wed, 7 May 2014 15:44:12 +0000
Committer: Thomas Gleixner <tglx@...utronix.de>
CommitDate: Fri, 16 May 2014 14:05:20 +0200
x86: Remove create/destroy_irq()
No more users. Remove the cruft
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Reviewed-by: Grant Likely <grant.likely@...aro.org>
Cc: Tony Luck <tony.luck@...el.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: x86@...nel.org
Link: http://lkml.kernel.org/r/20140507154336.760446122@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
arch/x86/kernel/apic/io_apic.c | 106 +----------------------------------------
include/linux/irq.h | 4 --
2 files changed, 1 insertion(+), 109 deletions(-)
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index be3b574..efda2f6 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -281,18 +281,6 @@ static struct irq_cfg *alloc_irq_and_cfg_at(unsigned int at, int node)
return cfg;
}
-static int alloc_irqs_from(unsigned int from, unsigned int count, int node)
-{
- return irq_alloc_descs_from(from, count, node);
-}
-
-static void free_irq_at(unsigned int at, struct irq_cfg *cfg)
-{
- free_irq_cfg(at, cfg);
- irq_free_desc(at);
-}
-
-
struct io_apic {
unsigned int index;
unsigned int unused[3];
@@ -2916,100 +2904,8 @@ static int __init ioapic_init_ops(void)
device_initcall(ioapic_init_ops);
/*
- * Dynamic irq allocate and deallocation
+ * Dynamic irq allocate and deallocation. Should be replaced by irq domains!
*/
-unsigned int __create_irqs(unsigned int from, unsigned int count, int node)
-{
- struct irq_cfg **cfg;
- unsigned long flags;
- int irq, i;
-
- if (from < nr_irqs_gsi)
- from = nr_irqs_gsi;
-
- cfg = kzalloc_node(count * sizeof(cfg[0]), GFP_KERNEL, node);
- if (!cfg)
- return 0;
-
- irq = alloc_irqs_from(from, count, node);
- if (irq < 0)
- goto out_cfgs;
-
- for (i = 0; i < count; i++) {
- cfg[i] = alloc_irq_cfg(irq + i, node);
- if (!cfg[i])
- goto out_irqs;
- }
-
- raw_spin_lock_irqsave(&vector_lock, flags);
- for (i = 0; i < count; i++)
- if (__assign_irq_vector(irq + i, cfg[i], apic->target_cpus()))
- goto out_vecs;
- raw_spin_unlock_irqrestore(&vector_lock, flags);
-
- for (i = 0; i < count; i++) {
- irq_set_chip_data(irq + i, cfg[i]);
- irq_clear_status_flags(irq + i, IRQ_NOREQUEST);
- }
-
- kfree(cfg);
- return irq;
-
-out_vecs:
- for (i--; i >= 0; i--)
- __clear_irq_vector(irq + i, cfg[i]);
- raw_spin_unlock_irqrestore(&vector_lock, flags);
-out_irqs:
- for (i = 0; i < count; i++)
- free_irq_at(irq + i, cfg[i]);
-out_cfgs:
- kfree(cfg);
- return 0;
-}
-
-unsigned int create_irq_nr(unsigned int from, int node)
-{
- return __create_irqs(from, 1, node);
-}
-
-int create_irq(void)
-{
- int node = cpu_to_node(0);
- unsigned int irq_want;
- int irq;
-
- irq_want = nr_irqs_gsi;
- irq = create_irq_nr(irq_want, node);
-
- if (irq == 0)
- irq = -1;
-
- return irq;
-}
-
-void destroy_irq(unsigned int irq)
-{
- struct irq_cfg *cfg = irq_get_chip_data(irq);
- unsigned long flags;
-
- irq_set_status_flags(irq, IRQ_NOREQUEST|IRQ_NOPROBE);
-
- free_remapped_irq(irq);
-
- raw_spin_lock_irqsave(&vector_lock, flags);
- __clear_irq_vector(irq, cfg);
- raw_spin_unlock_irqrestore(&vector_lock, flags);
- free_irq_at(irq, cfg);
-}
-
-void destroy_irqs(unsigned int irq, unsigned int count)
-{
- unsigned int i;
-
- for (i = 0; i < count; i++)
- destroy_irq(irq + i);
-}
-
int arch_setup_hwirq(unsigned int irq, int node)
{
struct irq_cfg *cfg;
diff --git a/include/linux/irq.h b/include/linux/irq.h
index c75dd16..7549ed5 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -526,12 +526,8 @@ static inline void irq_set_percpu_devid_flags(unsigned int irq)
}
/* Handle dynamic irq creation and destruction */
-extern unsigned int create_irq_nr(unsigned int irq_want, int node);
-extern unsigned int __create_irqs(unsigned int from, unsigned int count,
- int node);
extern int create_irq(void);
extern void destroy_irq(unsigned int irq);
-extern void destroy_irqs(unsigned int irq, unsigned int count);
/*
* Dynamic irq helper functions. Obsolete. Use irq_alloc_desc* and
--
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