[PATCH 4.6 11/81] uapi glibc compat: fix compilation when !__USE_MISC in glibc

[Greg Kroah-Hartman]

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

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

From: Nicolas Dichtel <nicolas.dichtel@xxxxxxxxx>

[ Upstream commit f0a3fdca794d1e68ae284ef4caefe681f7c18e89 ]

These structures are defined only if __USE_MISC is set in glibc net/if.h
headers, ie when _BSD_SOURCE or _SVID_SOURCE are defined.

CC: Jan Engelhardt <jengelh@xxxxxxx>
CC: Josh Boyer <jwboyer@xxxxxxxxxxxxxxxxx>
CC: Stephen Hemminger <shemming@xxxxxxxxxxx>
CC: Waldemar Brodkorb <mail@xxxxxxxxxxxxxxxxxxxx>
CC: Gabriel Laskar <gabriel@xxxxxxxxxxxx>
CC: Mikko Rapeli <mikko.rapeli@xxxxxx>
Fixes: 4a91cb61bb99 ("uapi glibc compat: fix compile errors when glibc net/if.h included before linux/if.h")
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 include/uapi/linux/libc-compat.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/include/uapi/linux/libc-compat.h
+++ b/include/uapi/linux/libc-compat.h
@@ -52,7 +52,7 @@
 #if defined(__GLIBC__)
 
 /* Coordinate with glibc net/if.h header. */
-#if defined(_NET_IF_H)
+#if defined(_NET_IF_H) && defined(__USE_MISC)
 
 /* GLIBC headers included first so don't define anything
  * that would already be defined. */