X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2Fbitmap.c;h=1338469ac849cb230fc8f1e74441ece4a6cfd58c;hb=765426e8ee4c0ab2bc9d44951f4865b8494cdbd0;hp=482df94ea21eb3e9ab7b2ef4efe88643147c3d80;hpb=72441bdc76f7f71d7b75cdaa48f26dbb1f3d932e;p=linux-2.6-omap-h63xx.git

diff --git a/lib/bitmap.c b/lib/bitmap.c
index 482df94ea21..1338469ac84 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -996,3 +996,25 @@ int bitmap_allocate_region(unsigned long *bitmap, int pos, int order)
 	return 0;
 }
 EXPORT_SYMBOL(bitmap_allocate_region);
+
+/**
+ * bitmap_copy_le - copy a bitmap, putting the bits into little-endian order.
+ * @dst:   destination buffer
+ * @src:   bitmap to copy
+ * @nbits: number of bits in the bitmap
+ *
+ * Require nbits % BITS_PER_LONG == 0.
+ */
+void bitmap_copy_le(void *dst, const unsigned long *src, int nbits)
+{
+	unsigned long *d = dst;
+	int i;
+
+	for (i = 0; i < nbits/BITS_PER_LONG; i++) {
+		if (BITS_PER_LONG == 64)
+			d[i] = cpu_to_le64(src[i]);
+		else
+			d[i] = cpu_to_le32(src[i]);
+	}
+}
+EXPORT_SYMBOL(bitmap_copy_le);