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authorThomas Gleixner <tglx@linutronix.de>2011-02-04 17:33:49 +0100
committerThomas Gleixner <tglx@linutronix.de>2011-02-08 19:37:13 +0100
commit44951a60ff888add9e84f509ffce20052e45af94 (patch)
tree7c1c6fb7009ef43fa76d6bb7c73c0d8b7d9a3699 /kernel/irq/irqdesc.c
parentc305d524e5dd3c3c7a6035083e30950bea1b52dc (diff)
downloadop-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.c17
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 */
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