Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Tobias Klauser <tklauser@distanz.ch>
To:     Andrew Morton <akpm@linux-foundation.org>
Cc:     Alexander Viro <viro@zeniv.linux.org.uk>,
        linux-kernel@vger.kernel.org, Christoph Hellwig <hch@lst.de>
Subject: [PATCH] ipc: adjust proc_ipc_sem_dointvec definition to match prototype
Date:   Tue, 25 Aug 2020 12:58:46 +0200
Message-Id: <20200825105846.5193-1-tklauser@distanz.ch>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Commit 32927393dc1c ("sysctl: pass kernel pointers to ->proc_handler")
changed ctl_table.proc_handler to take a kernel pointer. Adjust the
signature of proc_ipc_sem_dointvec to match ctl_table.proc_handler which
fixes the following sparse error/warning:

ipc/ipc_sysctl.c:94:47: warning: incorrect type in argument 3 (different address spaces)
ipc/ipc_sysctl.c:94:47:    expected void *buffer
ipc/ipc_sysctl.c:94:47:    got void [noderef] __user *buffer
ipc/ipc_sysctl.c:194:35: warning: incorrect type in initializer (incompatible argument 3 (different address spaces))
ipc/ipc_sysctl.c:194:35:    expected int ( [usertype] *proc_handler )( ... )
ipc/ipc_sysctl.c:194:35:    got int ( * )( ... )

Fixes: 32927393dc1c ("sysctl: pass kernel pointers to ->proc_handler")
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
---
 ipc/ipc_sysctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c
index d1b8644bfb88..3f312bf2b116 100644
--- a/ipc/ipc_sysctl.c
+++ b/ipc/ipc_sysctl.c
@@ -85,7 +85,7 @@ static int proc_ipc_auto_msgmni(struct ctl_table *table, int write,
 }
 
 static int proc_ipc_sem_dointvec(struct ctl_table *table, int write,
-	void __user *buffer, size_t *lenp, loff_t *ppos)
+	void *buffer, size_t *lenp, loff_t *ppos)
 {
 	int ret, semmni;
 	struct ipc_namespace *ns = current->nsproxy->ipc_ns;
-- 
2.27.0