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Message-ID: <20240605120319.2966627-3-sashal@kernel.org>
Date: Wed,  5 Jun 2024 08:02:53 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Matt Jan <zoo868e@...il.com>,
	"David S . Miller" <davem@...emloft.net>,
	Sasha Levin <sashal@...nel.org>,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 6.8 03/18] connector: Fix invalid conversion in cn_proc.h

From: Matt Jan <zoo868e@...il.com>

[ Upstream commit 06e785aeb9ea8a43d0a3967c1ba6e69d758e82d4 ]

The implicit conversion from unsigned int to enum
proc_cn_event is invalid, so explicitly cast it
for compilation in a C++ compiler.
/usr/include/linux/cn_proc.h: In function 'proc_cn_event valid_event(proc_cn_event)':
/usr/include/linux/cn_proc.h:72:17: error: invalid conversion from 'unsigned int' to 'proc_cn_event' [-fpermissive]
   72 |         ev_type &= PROC_EVENT_ALL;
      |                 ^
      |                 |
      |                 unsigned int

Signed-off-by: Matt Jan <zoo868e@...il.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 include/uapi/linux/cn_proc.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/include/uapi/linux/cn_proc.h b/include/uapi/linux/cn_proc.h
index f2afb7cc4926c..18e3745b86cd4 100644
--- a/include/uapi/linux/cn_proc.h
+++ b/include/uapi/linux/cn_proc.h
@@ -69,8 +69,7 @@ struct proc_input {
 
 static inline enum proc_cn_event valid_event(enum proc_cn_event ev_type)
 {
-	ev_type &= PROC_EVENT_ALL;
-	return ev_type;
+	return (enum proc_cn_event)(ev_type & PROC_EVENT_ALL);
 }
 
 /*
-- 
2.43.0


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