cpumask: Remove unnecessary cpumask_nth_andnot()

Commit 94f753143028("x86/resctrl: Optimize cpumask_any_housekeeping()")
switched the only user of cpumask_nth_andnot() to other cpumask
functions, but left the function cpumask_nth_andnot() unused.
This makes function find_nth_andnot_bit() unused as well. Delete them.

Signed-off-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Signed-off-by: Yury Norov [NVIDIA] <yury.norov@gmail.com>

1 files changed, 0 insertions, 27 deletions

diff --git a/include/linux/find.h b/include/linux/find.h
index 98c61838002c..9d720ad92bc1 100644
--- a/include/linux/find.h
+++ b/include/linux/find.h
@@ -270,33 +270,6 @@ unsigned long find_nth_and_bit(const unsigned long *addr1, const unsigned long *
 }
 
 /**
- * find_nth_andnot_bit - find N'th set bit in 2 memory regions,
- *			 flipping bits in 2nd region
- * @addr1: The 1st address to start the search at
- * @addr2: The 2nd address to start the search at
- * @size: The maximum number of bits to search
- * @n: The number of set bit, which position is needed, counting from 0
- *
- * Returns the bit number of the N'th set bit.
- * If no such, returns @size.
- */
-static __always_inline
-unsigned long find_nth_andnot_bit(const unsigned long *addr1, const unsigned long *addr2,
-				unsigned long size, unsigned long n)
-{
-	if (n >= size)
-		return size;
-
-	if (small_const_nbits(size)) {
-		unsigned long val =  *addr1 & (~*addr2) & GENMASK(size - 1, 0);
-
-		return val ? fns(val, n) : size;
-	}
-
-	return __find_nth_andnot_bit(addr1, addr2, size, n);
-}
-
-/**
  * find_nth_and_andnot_bit - find N'th set bit in 2 memory regions,
  *			     excluding those set in 3rd region
  * @addr1: The 1st address to start the search at