linux-kernel - [PATCH 4.19 27/57] xtensa: uaccess: Add missing __user to strncpy_from

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Date:   Tue,  1 Dec 2020 09:53:32 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, kernel test robot <lkp@...el.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Max Filippov <jcmvbkbc@...il.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 27/57] xtensa: uaccess: Add missing __user to strncpy_from_user() prototype

From: Laurent Pinchart <laurent.pinchart@...asonboard.com>

[ Upstream commit dc293f2106903ab9c24e9cea18c276e32c394c33 ]

When adding __user annotations in commit 2adf5352a34a, the
strncpy_from_user() function declaration for the
CONFIG_GENERIC_STRNCPY_FROM_USER case was missed. Fix it.

Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Message-Id: <20200831210937.17938-1-laurent.pinchart@...asonboard.com>
Signed-off-by: Max Filippov <jcmvbkbc@...il.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/xtensa/include/asm/uaccess.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/xtensa/include/asm/uaccess.h b/arch/xtensa/include/asm/uaccess.h
index f1158b4c629cf..da4effe270072 100644
--- a/arch/xtensa/include/asm/uaccess.h
+++ b/arch/xtensa/include/asm/uaccess.h
@@ -291,7 +291,7 @@ strncpy_from_user(char *dst, const char *src, long count)
 	return -EFAULT;
 }
 #else
-long strncpy_from_user(char *dst, const char *src, long count);
+long strncpy_from_user(char *dst, const char __user *src, long count);
 #endif
 
 /*
-- 
2.27.0