From: Greg KH <gre...@linuxfoundation.org>

3.5-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Michael Cree <mc...@orcon.net.nz>

commit a2fa3ccd7b43665fe14cb562761a6c3d26a1d13f upstream.

Currently we export SOCK_NONBLOCK to user space but that conflicts with
the definition from glibc leading to compilation errors in user programs
(e.g.  see Debian bug #658460).

The generic socket.h restricts the definition of SOCK_NONBLOCK to the
kernel, as does the MIPS specific socket.h, so let's do the same on
Alpha.

Signed-off-by: Michael Cree <mc...@orcon.net.nz>
Acked-by: Matt Turner <matts...@gmail.com>
Signed-off-by: Linus Torvalds <torva...@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 arch/alpha/include/asm/socket.h |    2 ++
 1 file changed, 2 insertions(+)

--- a/arch/alpha/include/asm/socket.h
+++ b/arch/alpha/include/asm/socket.h
@@ -76,9 +76,11 @@
 /* Instruct lower device to use last 4-bytes of skb data as FCS */
 #define SO_NOFCS               43
 
+#ifdef __KERNEL__
 /* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
  * have to define SOCK_NONBLOCK to a different value here.
  */
 #define SOCK_NONBLOCK  0x40000000
+#endif /* __KERNEL__ */
 
 #endif /* _ASM_SOCKET_H */


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