The patch titled
Subject: ipc: adjust proc_ipc_sem_dointvec definition to match prototype
has been added to the -mm tree. Its filename is
ipc-adjust-proc_ipc_sem_dointvec-definition-to-match-prototype.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/ipc-adjust-proc_ipc_sem_dointvec-definition-to-match-prototype.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/ipc-adjust-proc_ipc_sem_dointvec-definition-to-match-prototype.patch
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------------------------------------------------------
From: Tobias Klauser <tklauser@xxxxxxxxxx>
Subject: ipc: adjust proc_ipc_sem_dointvec definition to match prototype
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 ( * )( ... )
Link: https://lkml.kernel.org/r/20200825105846.5193-1-tklauser@xxxxxxxxxx
Fixes: 32927393dc1c ("sysctl: pass kernel pointers to ->proc_handler")
Signed-off-by: Tobias Klauser <tklauser@xxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
ipc/ipc_sysctl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/ipc/ipc_sysctl.c~ipc-adjust-proc_ipc_sem_dointvec-definition-to-match-prototype
+++ a/ipc/ipc_sysctl.c
@@ -85,7 +85,7 @@ static int proc_ipc_auto_msgmni(struct c
}
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;
_
Patches currently in -mm which might be from tklauser@xxxxxxxxxx are
ipc-adjust-proc_ipc_sem_dointvec-definition-to-match-prototype.patch
