4 files changed, 12 insertions, 30 deletions

diff --git a/arch/blackfin/kernel/dma-mapping.c b/arch/blackfin/kernel/dma-mapping.c
index e7be6532d6a0..df437e52d9df 100644
--- a/arch/blackfin/kernel/dma-mapping.c
+++ b/arch/blackfin/kernel/dma-mapping.c
@@ -13,6 +13,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/scatterlist.h>
 #include <linux/export.h>
+#include <linux/bitmap.h>
 
 static spinlock_t dma_page_lock;
 static unsigned long *dma_page;
@@ -46,24 +47,17 @@ static inline unsigned int get_pages(size_t size)
 static unsigned long __alloc_dma_pages(unsigned int pages)
 {
 	unsigned long ret = 0, flags;
-	int i, count = 0;
+	unsigned long start;
 
 	if (dma_initialized == 0)
 		dma_alloc_init(_ramend - DMA_UNCACHED_REGION, _ramend);
 
 	spin_lock_irqsave(&dma_page_lock, flags);
 
-	for (i = 0; i < dma_pages;) {
-		if (test_bit(i++, dma_page) == 0) {
-			if (++count == pages) {
-				while (count--)
-					__set_bit(--i, dma_page);
-
-				ret = dma_base + (i << PAGE_SHIFT);
-				break;
-			}
-		} else
-			count = 0;
+	start = bitmap_find_next_zero_area(dma_page, dma_pages, 0, pages, 0);
+	if (start < dma_pages) {
+		ret = dma_base + (start << PAGE_SHIFT);
+		bitmap_set(dma_page, start, pages);
 	}
 	spin_unlock_irqrestore(&dma_page_lock, flags);
 	return ret;
@@ -73,7 +67,6 @@ static void __free_dma_pages(unsigned long addr, unsigned int pages)
 {
 	unsigned long page = (addr - dma_base) >> PAGE_SHIFT;
 	unsigned long flags;
-	int i;
 
 	if ((page + pages) > dma_pages) {
 		printk(KERN_ERR "%s: freeing outside range.\n", __func__);
@@ -81,9 +74,7 @@ static void __free_dma_pages(unsigned long addr, unsigned int pages)
 	}
 
 	spin_lock_irqsave(&dma_page_lock, flags);
-	for (i = page; i < page + pages; i++)
-		__clear_bit(i, dma_page);
-
+	bitmap_clear(dma_page, page, pages);
 	spin_unlock_irqrestore(&dma_page_lock, flags);
 }
 
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index 3e16ad9b0a99..8061426b7df5 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -39,12 +39,6 @@ int nr_l1stack_tasks;
 void *l1_stack_base;
 unsigned long l1_stack_len;
 
-/*
- * Powermanagement idle function, if any..
- */
-void (*pm_idle)(void) = NULL;
-EXPORT_SYMBOL(pm_idle);
-
 void (*pm_power_off)(void) = NULL;
 EXPORT_SYMBOL(pm_power_off);
 
@@ -81,7 +75,6 @@ void cpu_idle(void)
 {
 	/* endless idle loop with no priority at all */
 	while (1) {
-		void (*idle)(void) = pm_idle;
 
 #ifdef CONFIG_HOTPLUG_CPU
 		if (cpu_is_offline(smp_processor_id()))
diff --git a/arch/blackfin/kernel/time-ts.c b/arch/blackfin/kernel/time-ts.c
index f608f02f29a3..cb0a4845339e 100644
--- a/arch/blackfin/kernel/time-ts.c
+++ b/arch/blackfin/kernel/time-ts.c
@@ -329,12 +329,6 @@ void bfin_coretmr_clockevent_init(void)
 	evt->broadcast = smp_timer_broadcast;
 #endif
 
-
-#ifdef CONFIG_SMP
-	evt->broadcast = smp_timer_broadcast;
-#endif
-
-
 	evt->name = "bfin_core_timer";
 	evt->rating = 350;
 	evt->irq = -1;
diff --git a/arch/blackfin/kernel/time.c b/arch/blackfin/kernel/time.c
index 2310b249675f..3126b920a4a5 100644
--- a/arch/blackfin/kernel/time.c
+++ b/arch/blackfin/kernel/time.c
@@ -85,7 +85,7 @@ time_sched_init(irqreturn_t(*timer_routine) (int, void *))
 /*
  * Should return useconds since last timer tick
  */
-u32 arch_gettimeoffset(void)
+static u32 blackfin_gettimeoffset(void)
 {
 	unsigned long offset;
 	unsigned long clocks_per_jiffy;
@@ -141,6 +141,10 @@ void read_persistent_clock(struct timespec *ts)
 
 void __init time_init(void)
 {
+#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
+	arch_gettimeoffset = blackfin_gettimeoffset;
+#endif
+
 #ifdef CONFIG_RTC_DRV_BFIN
 	/* [#2663] hack to filter junk RTC values that would cause
 	 * userspace to have to deal with time values greater than