diff --git a/arch/riscv/include/asm/bitops.h b/arch/riscv/include/asm/bitops.h
index 880606b0469a..71af9ecfcfcb 100644
--- a/arch/riscv/include/asm/bitops.h
+++ b/arch/riscv/include/asm/bitops.h
@@ -170,7 +170,7 @@ legacy:
 ({								\
 	typeof(x) x_ = (x);					\
 	__builtin_constant_p(x_) ?				\
-	 (int)((x_ != 0) ? (32 - __builtin_clz(x_)) : 0)	\
+	 ((x_ != 0) ? (32 - __builtin_clz(x_)) : 0)		\
 	 :							\
 	 variable_fls(x_);					\
 })
diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index 46d4bdc634c0..ba35bbf07798 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -47,12 +47,17 @@ extern unsigned long __sw_hweight64(__u64 w);
 	  __builtin_constant_p(*(const unsigned long *)(addr))) ?	\
 	 const##op(nr, addr) : op(nr, addr))
 
+/*
+ * The following macros are non-atomic versions of their non-underscored
+ * counterparts.
+ */
 #define __set_bit(nr, addr)		bitop(___set_bit, nr, addr)
 #define __clear_bit(nr, addr)		bitop(___clear_bit, nr, addr)
 #define __change_bit(nr, addr)		bitop(___change_bit, nr, addr)
 #define __test_and_set_bit(nr, addr)	bitop(___test_and_set_bit, nr, addr)
 #define __test_and_clear_bit(nr, addr)	bitop(___test_and_clear_bit, nr, addr)
 #define __test_and_change_bit(nr, addr)	bitop(___test_and_change_bit, nr, addr)
+
 #define test_bit(nr, addr)		bitop(_test_bit, nr, addr)
 #define test_bit_acquire(nr, addr)	bitop(_test_bit_acquire, nr, addr)
 
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 099e8b32dd68..801a7e524113 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -1033,53 +1033,17 @@ void init_cpu_present(const struct cpumask *src);
 void init_cpu_possible(const struct cpumask *src);
 void init_cpu_online(const struct cpumask *src);
 
-static inline void
-set_cpu_possible(unsigned int cpu, bool possible)
-{
-	if (possible)
-		cpumask_set_cpu(cpu, &__cpu_possible_mask);
-	else
-		cpumask_clear_cpu(cpu, &__cpu_possible_mask);
-}
+#define assign_cpu(cpu, mask, val)	\
+	assign_bit(cpumask_check(cpu), cpumask_bits(mask), (val))
 
-static inline void
-set_cpu_enabled(unsigned int cpu, bool can_be_onlined)
-{
-	if (can_be_onlined)
-		cpumask_set_cpu(cpu, &__cpu_enabled_mask);
-	else
-		cpumask_clear_cpu(cpu, &__cpu_enabled_mask);
-}
-
-static inline void
-set_cpu_present(unsigned int cpu, bool present)
-{
-	if (present)
-		cpumask_set_cpu(cpu, &__cpu_present_mask);
-	else
-		cpumask_clear_cpu(cpu, &__cpu_present_mask);
-}
+#define set_cpu_possible(cpu, possible)	assign_cpu((cpu), &__cpu_possible_mask, (possible))
+#define set_cpu_enabled(cpu, enabled)	assign_cpu((cpu), &__cpu_possible_mask, (enabled))
+#define set_cpu_present(cpu, present)	assign_cpu((cpu), &__cpu_present_mask, (present))
+#define set_cpu_active(cpu, active)	assign_cpu((cpu), &__cpu_active_mask, (active))
+#define set_cpu_dying(cpu, dying)	assign_cpu((cpu), &__cpu_dying_mask, (dying))
 
 void set_cpu_online(unsigned int cpu, bool online);
 
-static inline void
-set_cpu_active(unsigned int cpu, bool active)
-{
-	if (active)
-		cpumask_set_cpu(cpu, &__cpu_active_mask);
-	else
-		cpumask_clear_cpu(cpu, &__cpu_active_mask);
-}
-
-static inline void
-set_cpu_dying(unsigned int cpu, bool dying)
-{
-	if (dying)
-		cpumask_set_cpu(cpu, &__cpu_dying_mask);
-	else
-		cpumask_clear_cpu(cpu, &__cpu_dying_mask);
-}
-
 /**
  * to_cpumask - convert a NR_CPUS bitmap to a struct cpumask *
  * @bitmap: the bitmap
diff --git a/lib/cpumask_kunit.c b/lib/cpumask_kunit.c
index a105e6369efc..6b62a6bdd50e 100644
--- a/lib/cpumask_kunit.c
+++ b/lib/cpumask_kunit.c
@@ -152,4 +152,5 @@ static struct kunit_suite test_cpumask_suite = {
 };
 kunit_test_suite(test_cpumask_suite);
 
+MODULE_DESCRIPTION("KUnit tests for cpumask");
 MODULE_LICENSE("GPL");
diff --git a/lib/find_bit_benchmark.c b/lib/find_bit_benchmark.c
index d3fb09e6eff1..402e160e7186 100644
--- a/lib/find_bit_benchmark.c
+++ b/lib/find_bit_benchmark.c
@@ -194,4 +194,5 @@ static int __init find_bit_test(void)
 }
 module_init(find_bit_test);
 
+MODULE_DESCRIPTION("Test for find_*_bit functions");
 MODULE_LICENSE("GPL");
diff --git a/lib/test_bitmap.c b/lib/test_bitmap.c
index 6dfb8d46a4ff..65a75d58ed9e 100644
--- a/lib/test_bitmap.c
+++ b/lib/test_bitmap.c
@@ -1486,4 +1486,5 @@ static void __init selftest(void)
 
 KSTM_MODULE_LOADERS(test_bitmap);
 MODULE_AUTHOR("david decotigny <david.decotigny@googlers.com>");
+MODULE_DESCRIPTION("Test cases for bitmap API");
 MODULE_LICENSE("GPL");
diff --git a/tools/include/linux/bitmap.h b/tools/include/linux/bitmap.h
index 210c13b1b857..2a7f260ef9dc 100644
--- a/tools/include/linux/bitmap.h
+++ b/tools/include/linux/bitmap.h
@@ -19,7 +19,7 @@ bool __bitmap_and(unsigned long *dst, const unsigned long *bitmap1,
 		 const unsigned long *bitmap2, unsigned int bits);
 bool __bitmap_equal(const unsigned long *bitmap1,
 		    const unsigned long *bitmap2, unsigned int bits);
-void bitmap_clear(unsigned long *map, unsigned int start, int len);
+void __bitmap_clear(unsigned long *map, unsigned int start, int len);
 bool __bitmap_intersects(const unsigned long *bitmap1,
 			 const unsigned long *bitmap2, unsigned int bits);
 
@@ -150,4 +150,19 @@ static inline bool bitmap_intersects(const unsigned long *src1,
 		return __bitmap_intersects(src1, src2, nbits);
 }
 
+static inline void bitmap_clear(unsigned long *map, unsigned int start,
+			       unsigned int nbits)
+{
+	if (__builtin_constant_p(nbits) && nbits == 1)
+		__clear_bit(start, map);
+	else if (small_const_nbits(start + nbits))
+		*map &= ~GENMASK(start + nbits - 1, start);
+	else if (__builtin_constant_p(start & BITMAP_MEM_MASK) &&
+		 IS_ALIGNED(start, BITMAP_MEM_ALIGNMENT) &&
+		 __builtin_constant_p(nbits & BITMAP_MEM_MASK) &&
+		 IS_ALIGNED(nbits, BITMAP_MEM_ALIGNMENT))
+		memset((char *)map + start / 8, 0, nbits / 8);
+	else
+		__bitmap_clear(map, start, nbits);
+}
 #endif /* _TOOLS_LINUX_BITMAP_H */
diff --git a/tools/lib/bitmap.c b/tools/lib/bitmap.c
index c3e4871967bc..2178862bb114 100644
--- a/tools/lib/bitmap.c
+++ b/tools/lib/bitmap.c
@@ -100,3 +100,23 @@ bool __bitmap_intersects(const unsigned long *bitmap1,
 			return true;
 	return false;
 }
+
+void __bitmap_clear(unsigned long *map, unsigned int start, int len)
+{
+	unsigned long *p = map + BIT_WORD(start);
+	const unsigned int size = start + len;
+	int bits_to_clear = BITS_PER_LONG - (start % BITS_PER_LONG);
+	unsigned long mask_to_clear = BITMAP_FIRST_WORD_MASK(start);
+
+	while (len - bits_to_clear >= 0) {
+		*p &= ~mask_to_clear;
+		len -= bits_to_clear;
+		bits_to_clear = BITS_PER_LONG;
+		mask_to_clear = ~0UL;
+		p++;
+	}
+	if (len) {
+		mask_to_clear &= BITMAP_LAST_WORD_MASK(size);
+		*p &= ~mask_to_clear;
+	}
+}
diff --git a/tools/testing/radix-tree/Makefile b/tools/testing/radix-tree/Makefile
index 7527f738b4a1..d1acd7d58850 100644
--- a/tools/testing/radix-tree/Makefile
+++ b/tools/testing/radix-tree/Makefile
@@ -5,8 +5,8 @@ CFLAGS += -I. -I../../include -I../../../lib -g -Og -Wall \
 LDFLAGS += -fsanitize=address -fsanitize=undefined
 LDLIBS+= -lpthread -lurcu
 TARGETS = main idr-test multiorder xarray maple
-CORE_OFILES := xarray.o radix-tree.o idr.o linux.o test.o find_bit.o bitmap.o \
-			 slab.o maple.o
+LIBS := slab.o find_bit.o bitmap.o hweight.o vsprintf.o
+CORE_OFILES := xarray.o radix-tree.o idr.o linux.o test.o maple.o $(LIBS)
 OFILES = main.o $(CORE_OFILES) regression1.o regression2.o regression3.o \
 	 regression4.o tag_check.o multiorder.o idr-test.o iteration_check.o \
 	 iteration_check_2.o benchmark.o
diff --git a/tools/testing/radix-tree/bitmap.c b/tools/testing/radix-tree/bitmap.c
deleted file mode 100644
index 66ec4a24a203..000000000000
--- a/tools/testing/radix-tree/bitmap.c
+++ /dev/null
@@ -1,23 +0,0 @@
-/* lib/bitmap.c pulls in at least two other files. */
-
-#include <linux/bitmap.h>
-
-void bitmap_clear(unsigned long *map, unsigned int start, int len)
-{
-	unsigned long *p = map + BIT_WORD(start);
-	const unsigned int size = start + len;
-	int bits_to_clear = BITS_PER_LONG - (start % BITS_PER_LONG);
-	unsigned long mask_to_clear = BITMAP_FIRST_WORD_MASK(start);
-
-	while (len - bits_to_clear >= 0) {
-		*p &= ~mask_to_clear;
-		len -= bits_to_clear;
-		bits_to_clear = BITS_PER_LONG;
-		mask_to_clear = ~0UL;
-		p++;
-	}
-	if (len) {
-		mask_to_clear &= BITMAP_LAST_WORD_MASK(size);
-		*p &= ~mask_to_clear;
-	}
-}