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uapi glibc compat: fix outer guard of net device flags enum

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[ Upstream commit efc45154828ae4e49c6b46f59882bfef32697d44 ]

Fix a wrong condition preventing the higher net device flags
IFF_LOWER_UP etc to be defined if net/if.h is included before
linux/if.h.

The comment makes it clear the intention was to allow partial
definition with either parts.

This fixes compilation of userspace programs trying to use
IFF_LOWER_UP, IFF_DORMANT or IFF_ECHO.

Fixes: 4a91cb61bb99 ("uapi glibc compat: fix compile errors when glibc net/if.h included before linux/if.h")
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Reviewed-by: Mikko Rapeli <mikko.rapeli@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jonas Gorski 2016-12-03 17:31:45 +01:00 committed by Greg Kroah-Hartman
parent 8d348c13b5
commit 715c05edd5
1 changed files with 2 additions and 2 deletions
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4
include/uapi/linux/if.h
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@ -31,7 +31,7 @@
#include <linux/hdlc/ioctl.h>
/* For glibc compatibility. An empty enum does not compile. */
#if __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO != 0 && \
#if __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO != 0 || \
__UAPI_DEF_IF_NET_DEVICE_FLAGS != 0
/**
* enum net_device_flags - &struct net_device flags
@ -99,7 +99,7 @@ enum net_device_flags {
IFF_ECHO = 1<<18, /* volatile */
#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO */
};
#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO != 0 && __UAPI_DEF_IF_NET_DEVICE_FLAGS != 0 */
#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO != 0 || __UAPI_DEF_IF_NET_DEVICE_FLAGS != 0 */
/* for compatibility with glibc net/if.h */
#if __UAPI_DEF_IF_NET_DEVICE_FLAGS