genirq: revert dynarray

Revert the dynarray changes. They need more thought and polishing.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

3 files changed, 6 insertions, 68 deletions

diff --git a/include/linux/init.h b/include/linux/init.h
index 59fbb4aaba6a..70ad53e1eab8 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -247,49 +247,6 @@ struct obs_kernel_param {
 /* Relies on boot_command_line being set */
 void __init parse_early_param(void);
 
-struct dyn_array {
-        void **name;
-        unsigned long size;
-        unsigned int *nr;
-        unsigned long align;
-        void (*init_work)(void *);
-};
-extern struct dyn_array *__dyn_array_start[], *__dyn_array_end[];
-extern struct dyn_array *__per_cpu_dyn_array_start[], *__per_cpu_dyn_array_end[];
-
-#define DEFINE_DYN_ARRAY_ADDR(nameX, addrX, sizeX, nrX, alignX, init_workX) \
-                static struct dyn_array __dyn_array_##nameX __initdata = \
-                {       .name = (void **)&(nameX),\
-                        .size = sizeX,\
-                        .nr   = &(nrX),\
-                        .align = alignX,\
-                        .init_work = init_workX,\
-                }; \
-                static struct dyn_array *__dyn_array_ptr_##nameX __used \
-                __attribute__((__section__(".dyn_array.init"))) = \
-                        &__dyn_array_##nameX
-
-#define DEFINE_DYN_ARRAY(nameX, sizeX, nrX, alignX, init_workX) \
-        DEFINE_DYN_ARRAY_ADDR(nameX, nameX, sizeX, nrX, alignX, init_workX)
-
-#define DEFINE_PER_CPU_DYN_ARRAY_ADDR(nameX, addrX, sizeX, nrX, alignX, init_workX) \
-                static struct dyn_array __per_cpu_dyn_array_##nameX __initdata = \
-                {       .name = (void **)&(addrX),\
-                        .size = sizeX,\
-                        .nr   = &(nrX),\
-                        .align = alignX,\
-                        .init_work = init_workX,\
-                }; \
-                static struct dyn_array *__per_cpu_dyn_array_ptr_##nameX __used \
-                __attribute__((__section__(".per_cpu_dyn_array.init"))) = \
-                        &__per_cpu_dyn_array_##nameX
-
-#define DEFINE_PER_CPU_DYN_ARRAY(nameX, sizeX, nrX, alignX, init_workX) \
-        DEFINE_PER_CPU_DYN_ARRAY_ADDR(nameX, nameX, nrX, alignX, init_workX)
-
-extern void pre_alloc_dyn_array(void);
-extern unsigned long per_cpu_dyn_array_size(unsigned long *align);
-extern void per_cpu_alloc_dyn_array(int cpu, char *ptr);
 #endif /* __ASSEMBLY__ */
 
 /**
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 3f33c7790300..38bf89f2ade0 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -139,8 +139,6 @@ struct irq_chip {
         const char      *typename;
 };
 
-struct timer_rand_state;
-struct irq_2_iommu;
 /**
  * struct irq_desc - interrupt descriptor
  *
@@ -167,9 +165,6 @@ struct irq_2_iommu;
  */
 struct irq_desc {
         unsigned int            irq;
-#ifdef CONFIG_HAVE_DYN_ARRAY
-        unsigned int            *kstat_irqs;
-#endif
         irq_flow_handler_t      handle_irq;
         struct irq_chip         *chip;
         struct msi_desc         *msi_desc;
@@ -198,23 +193,13 @@ struct irq_desc {
 } ____cacheline_internodealigned_in_smp;
 
 
-#ifndef CONFIG_HAVE_DYN_ARRAY
-/* could be removed if we get rid of all irq_desc reference */
 extern struct irq_desc irq_desc[NR_IRQS];
-#else
-extern struct irq_desc *irq_desc;
-#endif
 
 static inline struct irq_desc *irq_to_desc(unsigned int irq)
 {
         return (irq < nr_irqs) ? irq_desc + irq : NULL;
 }
 
-#ifdef CONFIG_HAVE_DYN_ARRAY
-#define kstat_irqs_this_cpu(DESC) \
-        ((DESC)->kstat_irqs[smp_processor_id()])
-#endif
-
 /*
  * Migration helpers for obsolete names, they will go away:
  */
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index 21249d8c1293..a9d0d360b776 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -28,9 +28,7 @@ struct cpu_usage_stat {
 
 struct kernel_stat {
         struct cpu_usage_stat   cpustat;
-#ifndef CONFIG_HAVE_DYN_ARRAY
        unsigned int irqs[NR_IRQS];
-#endif
 };
 
 DECLARE_PER_CPU(struct kernel_stat, kstat);
@@ -41,20 +39,18 @@ DECLARE_PER_CPU(struct kernel_stat, kstat);
 
 extern unsigned long long nr_context_switches(void);
 
-#ifndef CONFIG_HAVE_DYN_ARRAY
-#define kstat_irqs_this_cpu(irq) \
-        (kstat_this_cpu.irqs[irq])
-#endif
+struct irq_desc;
 
+static inline void kstat_incr_irqs_this_cpu(unsigned int irq,
+                                            struct irq_desc *desc)
+{
+        kstat_this_cpu.irqs[irq]++;
+}
 
-#ifndef CONFIG_HAVE_DYN_ARRAY
 static inline unsigned int kstat_irqs_cpu(unsigned int irq, int cpu)
 {
        return kstat_cpu(cpu).irqs[irq];
 }
-#else
-extern unsigned int kstat_irqs_cpu(unsigned int irq, int cpu);
-#endif
 
 /*
  * Number of interrupts per specific IRQ source, since bootup