alpha: Don't export SOCK_NONBLOCK to user space.
authorMichael Cree <mcree@orcon.net.nz>
Sun, 19 Aug 2012 02:40:56 +0000 (14:40 +1200)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sun, 19 Aug 2012 15:41:18 +0000 (08:41 -0700)
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 <mcree@orcon.net.nz>
Acked-by: Matt Turner <mattst88@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/alpha/include/asm/socket.h

index dcb221a4b5be3505686b05fb3060307cde68f29b..7d2f75be932e6d16e4ceba058fe0e0c769a8be32 100644 (file)
 /* 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 */