alpha: cleanup in bitops.h
Remove 2 functions private to the alpha implemetation,
in favor of similar functions in <linux/log2.h>.
Provide a more efficient version of the fls64 function
for pre-ev67 alphas.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
index 6e7d1fe..28c84e5 100644
--- a/arch/alpha/kernel/pci_iommu.c
+++ b/arch/alpha/kernel/pci_iommu.c
@@ -7,6 +7,7 @@
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/bootmem.h>
+#include <linux/log2.h>
#include <asm/io.h>
#include <asm/hwrpb.h>
@@ -53,7 +54,7 @@
{
unsigned long mem = max_low_pfn << PAGE_SHIFT;
if (mem < max)
- max = 1UL << ceil_log2(mem);
+ max = roundup_pow_of_two(mem);
return max;
}