Merge tag 'sound-5.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...

[linux-2.6-microblaze.git] / tools / lib / find_bit.c

diff --git a/tools/lib/find_bit.c b/tools/lib/find_bit.c
index 109aa7f..ba4b8d9 100644 (file)
--- a/tools/lib/find_bit.c
+++ b/tools/lib/find_bit.c
@@ -96,6 +96,26 @@ unsigned long _find_first_bit(const unsigned long *addr, unsigned long size)
 }
 #endif
 
+#ifndef find_first_and_bit
+/*
+ * Find the first set bit in two memory regions.
+ */
+unsigned long _find_first_and_bit(const unsigned long *addr1,
+                                 const unsigned long *addr2,
+                                 unsigned long size)
+{
+       unsigned long idx, val;
+
+       for (idx = 0; idx * BITS_PER_LONG < size; idx++) {
+               val = addr1[idx] & addr2[idx];
+               if (val)
+                       return min(idx * BITS_PER_LONG + __ffs(val), size);
+       }
+
+       return size;
+}
+#endif
+
 #ifndef find_first_zero_bit
 /*
  * Find the first cleared bit in a memory region.