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| author | Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> | 2007-07-25 17:59:22 +0900 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2007-07-25 11:09:01 -0700 |
| commit | 6ffbc82351c62eeeeaeb9e817ddf93049353493d (patch) | |
| tree | 1cc8c58070d0688632c77ae13eddfc6bfdc99949 /arch/ia64/kernel/irq_ia64.c | |
| parent | 8f5ad1a8227aa110d633b5ed04dde535381c16c7 (diff) | |
| download | lwn-6ffbc82351c62eeeeaeb9e817ddf93049353493d.tar.gz lwn-6ffbc82351c62eeeeaeb9e817ddf93049353493d.zip | |
[IA64] vector-domain - fix vector_table
Fix wrong access to vector_table[].
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/kernel/irq_ia64.c')
| -rw-r--r-- | arch/ia64/kernel/irq_ia64.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c index 158eafb5f1aa..fcb77338cc09 100644 --- a/arch/ia64/kernel/irq_ia64.c +++ b/arch/ia64/kernel/irq_ia64.c @@ -85,8 +85,8 @@ DEFINE_PER_CPU(int[IA64_NUM_VECTORS], vector_irq) = { [0 ... IA64_NUM_VECTORS - 1] = IA64_SPURIOUS_INT_VECTOR }; -static cpumask_t vector_table[IA64_MAX_DEVICE_VECTORS] = { - [0 ... IA64_MAX_DEVICE_VECTORS - 1] = CPU_MASK_NONE +static cpumask_t vector_table[IA64_NUM_VECTORS] = { + [0 ... IA64_NUM_VECTORS - 1] = CPU_MASK_NONE }; static int irq_status[NR_IRQS] = { @@ -123,17 +123,18 @@ static inline int find_unassigned_irq(void) static inline int find_unassigned_vector(cpumask_t domain) { cpumask_t mask; - int pos; + int pos, vector; cpus_and(mask, domain, cpu_online_map); if (cpus_empty(mask)) return -EINVAL; for (pos = 0; pos < IA64_NUM_DEVICE_VECTORS; pos++) { - cpus_and(mask, domain, vector_table[pos]); + vector = IA64_FIRST_DEVICE_VECTOR + pos; + cpus_and(mask, domain, vector_table[vector]); if (!cpus_empty(mask)) continue; - return IA64_FIRST_DEVICE_VECTOR + pos; + return vector; } return -ENOSPC; } @@ -141,7 +142,7 @@ static inline int find_unassigned_vector(cpumask_t domain) static int __bind_irq_vector(int irq, int vector, cpumask_t domain) { cpumask_t mask; - int cpu, pos; + int cpu; struct irq_cfg *cfg = &irq_cfg[irq]; cpus_and(mask, domain, cpu_online_map); @@ -156,8 +157,7 @@ static int __bind_irq_vector(int irq, int vector, cpumask_t domain) cfg->vector = vector; cfg->domain = domain; irq_status[irq] = IRQ_USED; - pos = vector - IA64_FIRST_DEVICE_VECTOR; - cpus_or(vector_table[pos], vector_table[pos], domain); + cpus_or(vector_table[vector], vector_table[vector], domain); return 0; } @@ -174,7 +174,7 @@ int bind_irq_vector(int irq, int vector, cpumask_t domain) static void __clear_irq_vector(int irq) { - int vector, cpu, pos; + int vector, cpu; cpumask_t mask; cpumask_t domain; struct irq_cfg *cfg = &irq_cfg[irq]; @@ -189,8 +189,7 @@ static void __clear_irq_vector(int irq) cfg->vector = IRQ_VECTOR_UNASSIGNED; cfg->domain = CPU_MASK_NONE; irq_status[irq] = IRQ_UNUSED; - pos = vector - IA64_FIRST_DEVICE_VECTOR; - cpus_andnot(vector_table[pos], vector_table[pos], domain); + cpus_andnot(vector_table[vector], vector_table[vector], domain); } static void clear_irq_vector(int irq) |