[tip:timers/core] signal: Move copy_siginfo_to_user to <linux/signal.h>

[tip-bot for Christoph Hellwig <tipbot@zytor.com>]

Commit-ID:  b9253a43370e8f3c46c0ee24b04fa2ffec37b7c0
Gitweb:     http://git.kernel.org/tip/b9253a43370e8f3c46c0ee24b04fa2ffec37b7c0
Author:     Christoph Hellwig <hch@lst.de>
AuthorDate: Sat, 3 Jun 2017 21:01:01 +0200
Committer:  Thomas Gleixner <tglx@linutronix.de>
CommitDate: Sun, 4 Jun 2017 15:11:46 +0200

signal: Move copy_siginfo_to_user to <linux/signal.h>

Having it in asm-generic/siginfo.h doesn't make any sense as it is in no way
architecture specific.  Move it to signal.h instead where several related
functions already reside.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-arch@vger.kernel.org
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-ia64@vger.kernel.org
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: sparclinux@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>
Link: http://lkml.kernel.org/r/20170603190102.28866-5-hch@lst.de

---
 include/asm-generic/siginfo.h | 4 ----
 include/linux/signal.h        | 2 ++
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/include/asm-generic/siginfo.h b/include/asm-generic/siginfo.h
index 5a93947..31268a5 100644
--- a/include/asm-generic/siginfo.h
+++ b/include/asm-generic/siginfo.h
@@ -14,8 +14,4 @@
 #define __SI_SYS	(7 << 16)
 #define __SI_CODE(T,N)	((T) | ((N) & 0xffff))
 
-struct siginfo;
-
-extern int copy_siginfo_to_user(struct siginfo __user *to, const struct siginfo *from);
-
 #endif
diff --git a/include/linux/signal.h b/include/linux/signal.h
index 80c7418..a39fedd 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -19,6 +19,8 @@ static inline void copy_siginfo(struct siginfo *to, struct siginfo *from)
 		memcpy(to, from, __ARCH_SI_PREAMBLE_SIZE + sizeof(from->_sifields._sigchld));
 }
 
+int copy_siginfo_to_user(struct siginfo __user *to, const struct siginfo *from);
+
 /*
  * Define some primitives to manipulate sigset_t.
  */