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| author | Thomas Gleixner <tglx@linutronix.de> | 2011-02-04 17:33:49 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2011-02-08 19:37:13 +0100 |
| commit | 44951a60ff888add9e84f509ffce20052e45af94 (patch) | |
| tree | 7c1c6fb7009ef43fa76d6bb7c73c0d8b7d9a3699 /kernel/irq/irqdesc.c | |
| parent | c305d524e5dd3c3c7a6035083e30950bea1b52dc (diff) | |
| download | op-kernel-dev-44951a60ff888add9e84f509ffce20052e45af94.zip op-kernel-dev-44951a60ff888add9e84f509ffce20052e45af94.tar.gz | |
genirq: Remove dead code
CONFIG_KSTAT_IRQS_ONDEMAND does not exist. It's not worth to implement
it. Use sparse irqs if you care about memory consumption of the
interrupt layer.
Found by undertaker: http://vamos.informatik.uni-erlangen.de/trac/undertaker
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/irq/irqdesc.c')
| -rw-r--r-- | kernel/irq/irqdesc.c | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index 282f202..a7ac6e1 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -251,7 +251,6 @@ int __init early_irq_init(void) for (i = 0; i < count; i++) { desc[i].irq_data.irq = i; desc[i].irq_data.chip = &no_irq_chip; - /* TODO : do this allocation on-demand ... */ desc[i].kstat_irqs = alloc_percpu(unsigned int); alloc_masks(desc + i, GFP_KERNEL, node); desc_smp_init(desc + i, node); @@ -277,22 +276,6 @@ static void free_desc(unsigned int irq) static inline int alloc_descs(unsigned int start, unsigned int cnt, int node) { -#if defined(CONFIG_KSTAT_IRQS_ONDEMAND) - struct irq_desc *desc; - unsigned int i; - - for (i = 0; i < cnt; i++) { - desc = irq_to_desc(start + i); - if (desc && !desc->kstat_irqs) { - unsigned int __percpu *stats = alloc_percpu(unsigned int); - - if (!stats) - return -1; - if (cmpxchg(&desc->kstat_irqs, NULL, stats) != NULL) - free_percpu(stats); - } - } -#endif return start; } #endif /* !CONFIG_SPARSE_IRQ */ |
