diff options
| author | Yinghai Lu <yhlu.kernel@gmail.com> | 2008-08-19 20:50:14 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-16 16:52:50 +0200 |
| commit | 7d94f7ca401dd7f445fda9a971a48aa5427b3e55 (patch) | |
| tree | 8f4d4b73966fd0aa54df2da5bbcf67ea0a7ff43a /arch | |
| parent | 46b8214d12c274bd4265aae482ab7ffe69d94818 (diff) | |
irq: remove >= nr_irqs checking with config_have_sparse_irq
remove irq limit checks - nr_irqs is dynamic and we expand anytime.
v2: fix checking about result irq_cfg_without_new, so could use msi again
v3: use irq_desc_without_new to check irq is valid
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/io_apic_64.c | 9 | ||||
| -rw-r--r-- | arch/x86/kernel/irq_64.c | 2 |
2 files changed, 1 insertions, 10 deletions
diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c index 60d60061659..1b8cccb5ba2 100644 --- a/arch/x86/kernel/io_apic_64.c +++ b/arch/x86/kernel/io_apic_64.c @@ -400,7 +400,6 @@ static inline void io_apic_sync(unsigned int apic) struct irq_cfg *cfg; \ struct irq_pin_list *entry; \ \ - BUG_ON(irq >= nr_irqs); \ cfg = irq_cfg(irq); \ entry = cfg->irq_2_pin; \ for (;;) { \ @@ -480,7 +479,6 @@ static void __target_IO_APIC_irq(unsigned int irq, unsigned int dest, u8 vector) struct irq_cfg *cfg; struct irq_pin_list *entry; - BUG_ON(irq >= nr_irqs); cfg = irq_cfg(irq); entry = cfg->irq_2_pin; for (;;) { @@ -549,7 +547,6 @@ static void add_pin_to_irq(unsigned int irq, int apic, int pin) struct irq_cfg *cfg; struct irq_pin_list *entry; - BUG_ON(irq >= nr_irqs); /* first time to refer irq_cfg, so with new */ cfg = irq_cfg_alloc(irq); entry = cfg->irq_2_pin; @@ -841,7 +838,6 @@ int IO_APIC_get_PCI_irq_vector(int bus, int slot, int pin) best_guess = irq; } } - BUG_ON(best_guess >= nr_irqs); return best_guess; } @@ -973,7 +969,6 @@ static int pin_2_irq(int idx, int apic, int pin) irq += nr_ioapic_registers[i++]; irq += pin; } - BUG_ON(irq >= nr_irqs); return irq; } @@ -1008,7 +1003,6 @@ static int __assign_irq_vector(int irq, cpumask_t mask) int cpu; struct irq_cfg *cfg; - BUG_ON((unsigned)irq >= nr_irqs); cfg = irq_cfg(irq); /* Only try and allocate irqs on cpus that are present */ @@ -1082,7 +1076,6 @@ static void __clear_irq_vector(int irq) cpumask_t mask; int cpu, vector; - BUG_ON((unsigned)irq >= nr_irqs); cfg = irq_cfg(irq); BUG_ON(!cfg->vector); @@ -1924,8 +1917,6 @@ asmlinkage void smp_irq_move_cleanup_interrupt(void) struct irq_desc *desc; struct irq_cfg *cfg; irq = __get_cpu_var(vector_irq)[vector]; - if (irq >= nr_irqs) - continue; desc = irq_to_desc(irq); cfg = irq_cfg(irq); diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c index b3cf55e325f..a3e36336d91 100644 --- a/arch/x86/kernel/irq_64.c +++ b/arch/x86/kernel/irq_64.c @@ -202,7 +202,7 @@ asmlinkage unsigned int do_IRQ(struct pt_regs *regs) stack_overflow_check(regs); #endif - if (likely(irq < nr_irqs)) + if (likely(__irq_to_desc(irq))) generic_handle_irq(irq); else { if (!disable_apic) |