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| author | Thomas Gleixner <tglx@linutronix.de> | 2010-09-27 20:55:03 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-10-12 16:39:08 +0200 |
| commit | b683de2b3cb17bb10fa6fd4af614dc75b5749fe0 (patch) | |
| tree | e1a799293b218f5c13d4903c57fab144b2f433b3 /kernel/irq/irqdesc.c | |
| parent | aa99ec0f3f26bf2bcd0fa5176de93598427f1e5e (diff) | |
| download | linux-b683de2b3cb17bb10fa6fd4af614dc75b5749fe0.tar.gz linux-b683de2b3cb17bb10fa6fd4af614dc75b5749fe0.tar.bz2 linux-b683de2b3cb17bb10fa6fd4af614dc75b5749fe0.zip | |
genirq: Query arch for number of early descriptors
sparse irq sets up NR_IRQS_LEGACY irq descriptors and archs then go
ahead and allocate more.
Use the unused return value of arch_probe_nr_irqs() to let the
architecture return the number of early allocations. Fix up all users.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/irq/irqdesc.c')
| -rw-r--r-- | kernel/irq/irqdesc.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index 7cbe4f93e2fb..a1fbd1d347af 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -226,16 +226,16 @@ struct irq_desc * __ref irq_to_desc_alloc_node(unsigned int irq, int node) int __init early_irq_init(void) { - int i, node = first_online_node; + int i, initcnt, node = first_online_node; struct irq_desc *desc; init_irq_default_affinity(); - /* initialize nr_irqs based on nr_cpu_ids */ - arch_probe_nr_irqs(); - printk(KERN_INFO "NR_IRQS:%d nr_irqs:%d\n", NR_IRQS, nr_irqs); + /* Let arch update nr_irqs and return the nr of preallocated irqs */ + initcnt = arch_probe_nr_irqs(); + printk(KERN_INFO "NR_IRQS:%d nr_irqs:%d %d\n", NR_IRQS, nr_irqs, initcnt); - for (i = 0; i < NR_IRQS_LEGACY; i++) { + for (i = 0; i < initcnt; i++) { desc = alloc_desc(i, node); set_bit(i, allocated_irqs); irq_insert_desc(i, desc); |