ipc: convert prepare_copy() from macro to function
This code works if CONFIG_CHECKPOINT_RESTORE is disabled.
[akpm@linux-foundation.org: remove __maybe_unused]
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/ipc/msg.c b/ipc/msg.c
index 7a20536..038a7d7 100644
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -803,8 +803,15 @@
free_msg(copy);
}
#else
-#define prepare_copy(buf, sz, msgflg, msgtyp, copy_nr) ERR_PTR(-ENOSYS)
#define fill_copy(copy_nr, msg_nr, msg, copy) NULL
+
+static inline struct msg_msg *prepare_copy(void __user *buf, size_t bufsz,
+ int msgflg, long *msgtyp,
+ unsigned long *copy_number)
+{
+ return ERR_PTR(-ENOSYS);
+}
+
static inline void free_copy(struct msg_msg *copy)
{
}
@@ -819,7 +826,7 @@
int mode;
struct ipc_namespace *ns;
struct msg_msg *copy = NULL;
- unsigned long __maybe_unused copy_number;
+ unsigned long copy_number = 0;
if (msqid < 0 || (long) bufsz < 0)
return -EINVAL;