linux-kernel - [PATCH] nodemask: use find_next_bit_wrap() in next_node

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <20250621141953.514526-1-yury.norov@gmail.com>
Date: Sat, 21 Jun 2025 10:19:52 -0400
From: Yury Norov <yury.norov@...il.com>
To: linux-kernel@...r.kernel.org
Cc: "Yury Norov [NVIDIA]" <yury.norov@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Kees Cook <kees@...nel.org>,
	Rasmus Villemoes <linux@...musvillemoes.dk>
Subject: [PATCH] nodemask: use find_next_bit_wrap() in next_node_in()

From: Yury Norov [NVIDIA] <yury.norov@...il.com>

The function opencodes find_next_bit_wrap(). Switch to using it.

Signed-off-by: Yury Norov [NVIDIA] <yury.norov@...il.com>
---
 include/linux/nodemask.h | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/include/linux/nodemask.h b/include/linux/nodemask.h
index f08ae71585fa..81586d24d248 100644
--- a/include/linux/nodemask.h
+++ b/include/linux/nodemask.h
@@ -266,11 +266,7 @@ static __always_inline unsigned int __next_node(int n, const nodemask_t *srcp)
 #define next_node_in(n, src) __next_node_in((n), &(src))
 static __always_inline unsigned int __next_node_in(int node, const nodemask_t *srcp)
 {
-	unsigned int ret = __next_node(node, srcp);
-
-	if (ret == MAX_NUMNODES)
-		ret = __first_node(srcp);
-	return ret;
+	return find_next_bit_wrap(srcp->bits, MAX_NUMNODES, node + 1);
 }
 
 static __always_inline void init_nodemask_of_node(nodemask_t *mask, int node)
-- 
2.43.0