linux-kernel - [PATCH] cpumask: Correct cpumask_weight

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Message-ID: <9469d35a-f641-45c9-a6b0-6e43addb7646@arm.com>
Date: Mon, 1 Jul 2024 09:20:50 +0100
From: Christian Loehle <christian.loehle@....com>
To: yury.norov@...il.com, linux@...musvillemoes.dk,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] cpumask: Correct cpumask_weight_andnot() doc

The documentation of cpumask_weight_andnot() was the same as
cpumask_weight_and() which is obviously wrong. Document the
actual behavior.

Signed-off-by: Christian Loehle <christian.loehle@....com>
---
 include/linux/cpumask.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 23686bed441d..325dd80bbc76 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -788,10 +788,10 @@ static inline unsigned int cpumask_weight_and(const struct cpumask *srcp1,
 
 /**
  * cpumask_weight_andnot - Count of bits in (*srcp1 & ~*srcp2)
- * @srcp1: the cpumask to count bits (< nr_cpu_ids) in.
- * @srcp2: the cpumask to count bits (< nr_cpu_ids) in.
+ * @srcp1: the cpumask to count set bits (< nr_cpu_ids) in.
+ * @srcp2: the cpumask to count clear bits (< nr_cpu_ids) in.
  *
- * Return: count of bits set in both *srcp1 and *srcp2
+ * Return: count of bits set in *srcp1 and clear in *srcp2
  */
 static inline unsigned int cpumask_weight_andnot(const struct cpumask *srcp1,
 						const struct cpumask *srcp2)
-- 
2.34.1