eHCA scaling code must not depend on register_cpu_notifier() if
CONFIG_HOTPLUG_CPU is not set, so put all related code into #ifdefs.
Signed-off-by: Joachim Fenkes <[EMAIL PROTECTED]>
---
ehca_irq.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/infiniband/hw/ehca/ehca_irq.c
b/drivers/infiniband/hw/ehca/ehca_irq.c
index 20f36bf..f284be1 100644
--- a/drivers/infiniband/hw/ehca/ehca_irq.c
+++ b/drivers/infiniband/hw/ehca/ehca_irq.c
@@ -66,7 +66,9 @@ #define ERROR_DATA_TYPE EHCA_BMAS
static void queue_comp_task(struct ehca_cq *__cq);
static struct ehca_comp_pool* pool;
+#ifdef CONFIG_HOTPLUG_CPU
static struct notifier_block comp_pool_callback_nb;
+#endif
static inline void comp_event_callback(struct ehca_cq *cq)
{
@@ -733,6 +735,7 @@ static void take_over_work(struct ehca_c
}
+#ifdef CONFIG_HOTPLUG_CPU
static int comp_pool_callback(struct notifier_block *nfb,
unsigned long action,
void *hcpu)
@@ -775,6 +778,7 @@ static int comp_pool_callback(struct not
return NOTIFY_OK;
}
+#endif
int ehca_create_comp_pool(void)
{
@@ -805,9 +809,11 @@ int ehca_create_comp_pool(void)
}
}
+#ifdef CONFIG_HOTPLUG_CPU
comp_pool_callback_nb.notifier_call = comp_pool_callback;
comp_pool_callback_nb.priority =0;
register_cpu_notifier(&comp_pool_callback_nb);
+#endif
printk(KERN_INFO "eHCA scaling code enabled\n");
@@ -821,7 +827,9 @@ void ehca_destroy_comp_pool(void)
if (!ehca_scaling_code)
return;
+#ifdef CONFIG_HOTPLUG_CPU
unregister_cpu_notifier(&comp_pool_callback_nb);
+#endif
for (i = 0; i < NR_CPUS; i++) {
if (cpu_online(i))
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