linux-kernel - [PATCH] nls: fix byte order conversion warnings in get

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: <20251112083324.60209-1-HsuehBo@126.com>
Date: Wed, 12 Nov 2025 16:33:24 +0800
From: HsuehBo@....com
To: linux-kernel@...r.kernel.org,
	trondmy@...nel.org,
	anna@...nel.org
Cc: linux-nfs@...r.kernel.org,
	linux-fsdevel@...r.kernel.org,
	HsuehBo@...look.com,
	Hsueh Bo <HsuehBo@....com>
Subject: [PATCH] nls: fix byte order conversion warnings in get_utf16()

From: Hsueh Bo <HsuehBo@....com>

Add proper __force type casting to resolve sparse warnings
about restricted __le16/__be16 conversions in get_utf16() function.

This fixes the following sparse warnings:
fs/nls/nls_base.c:180:24: warning: cast to restricted __le16
fs/nls/nls_base.c:182:24: warning: cast to restricted __be16

Signed-off-by: Hsueh Bo <HsuehBo@....com>
---
 fs/nls/nls_base.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/nls/nls_base.c b/fs/nls/nls_base.c
index 18d597e49a19..4c6fa02e01d6 100644
--- a/fs/nls/nls_base.c
+++ b/fs/nls/nls_base.c
@@ -177,9 +177,9 @@ static inline unsigned long get_utf16(unsigned c, enum utf16_endian endian)
 	default:
 		return c;
 	case UTF16_LITTLE_ENDIAN:
-		return __le16_to_cpu(c);
+		return __le16_to_cpu((__force __le16)c);
 	case UTF16_BIG_ENDIAN:
-		return __be16_to_cpu(c);
+		return __be16_to_cpu((__force __be16)c);
 	}
 }
 
-- 
2.43.0