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Groups > linux.kernel > #1467984

[PATCH v05 64/72] include/uapi/linux/ipx.h: fix conflicting defitions with glibc netipx/ipx.h

From Mikko Rapeli <mikko.rapeli@iki.fi>
Newsgroups linux.kernel
Subject [PATCH v05 64/72] include/uapi/linux/ipx.h: fix conflicting defitions with glibc netipx/ipx.h
Date 2016-08-22 21:30 +0200
Message-ID <s9350-22o-17@gated-at.bofh.it> (permalink)
References <s92iC-1rh-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Fixes these compiler warnings via libc-compat.h when glibc netipx/ipx.h is
included before linux/ipx.h:

./linux/ipx.h:9:8: error: redefinition of ‘struct sockaddr_ipx’
./linux/ipx.h:26:8: error: redefinition of ‘struct ipx_route_definition’
./linux/ipx.h:32:8: error: redefinition of ‘struct ipx_interface_definition’
./linux/ipx.h:49:8: error: redefinition of ‘struct ipx_config_data’
./linux/ipx.h:58:8: error: redefinition of ‘struct ipx_route_def’

Signed-off-by: Mikko Rapeli <mikko.rapeli@iki.fi>
---
 include/uapi/linux/ipx.h         | 13 ++++++++++++-
 include/uapi/linux/libc-compat.h | 26 ++++++++++++++++++++++++++
 2 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/include/uapi/linux/ipx.h b/include/uapi/linux/ipx.h
index 3d48014..30f031d 100644
--- a/include/uapi/linux/ipx.h
+++ b/include/uapi/linux/ipx.h
@@ -1,11 +1,13 @@
 #ifndef _IPX_H_
 #define _IPX_H_
+#include <linux/libc-compat.h>	/* for compatibility with glibc netipx/ipx.h */
 #include <linux/types.h>
 #include <linux/sockios.h>
 #include <linux/socket.h>
 #define IPX_NODE_LEN	6
 #define IPX_MTU		576
 
+#if __UAPI_DEF_SOCKADDR_IPX
 struct sockaddr_ipx {
 	__kernel_sa_family_t sipx_family;
 	__be16		sipx_port;
@@ -14,6 +16,7 @@ struct sockaddr_ipx {
 	__u8		sipx_type;
 	unsigned char	sipx_zero;	/* 16 byte fill */
 };
+#endif /* __UAPI_DEF_SOCKADDR_IPX */
 
 /*
  * So we can fit the extra info for SIOCSIFADDR into the address nicely
@@ -23,12 +26,15 @@ struct sockaddr_ipx {
 #define IPX_DLTITF	0
 #define IPX_CRTITF	1
 
+#if __UAPI_DEF_IPX_ROUTE_DEFINITION
 struct ipx_route_definition {
 	__be32        ipx_network;
 	__be32        ipx_router_network;
 	unsigned char ipx_router_node[IPX_NODE_LEN];
 };
+#endif /* __UAPI_DEF_IPX_ROUTE_DEFINITION */
 
+#if __UAPI_DEF_IPX_INTERFACE_DEFINITION
 struct ipx_interface_definition {
 	__be32        ipx_network;
 	unsigned char ipx_device[16];
@@ -45,16 +51,20 @@ struct ipx_interface_definition {
 #define IPX_INTERNAL		2
 	unsigned char ipx_node[IPX_NODE_LEN];
 };
-	
+#endif /* __UAPI_DEF_IPX_INTERFACE_DEFINITION */
+
+#if __UAPI_DEF_IPX_CONFIG_DATA
 struct ipx_config_data {
 	unsigned char	ipxcfg_auto_select_primary;
 	unsigned char	ipxcfg_auto_create_interfaces;
 };
+#endif /* __UAPI_DEF_IPX_CONFIG_DATA */
 
 /*
  * OLD Route Definition for backward compatibility.
  */
 
+#if __UAPI_DEF_IPX_ROUTE_DEF
 struct ipx_route_def {
 	__be32		ipx_network;
 	__be32		ipx_router_network;
@@ -67,6 +77,7 @@ struct ipx_route_def {
 #define IPX_RT_BLUEBOOK		2
 #define IPX_RT_ROUTED		1
 };
+#endif /* __UAPI_DEF_IPX_ROUTE_DEF */
 
 #define SIOCAIPXITFCRT		(SIOCPROTOPRIVATE)
 #define SIOCAIPXPRISLT		(SIOCPROTOPRIVATE + 1)
diff --git a/include/uapi/linux/libc-compat.h b/include/uapi/linux/libc-compat.h
index e4f048e..44b8a6b 100644
--- a/include/uapi/linux/libc-compat.h
+++ b/include/uapi/linux/libc-compat.h
@@ -139,6 +139,25 @@
 
 #endif /* _NETINET_IN_H */
 
+/* Coordinate with glibc netipx/ipx.h header. */
+#if defined(__NETIPX_IPX_H)
+
+#define __UAPI_DEF_SOCKADDR_IPX			0
+#define __UAPI_DEF_IPX_ROUTE_DEFINITION		0
+#define __UAPI_DEF_IPX_INTERFACE_DEFINITION	0
+#define __UAPI_DEF_IPX_CONFIG_DATA		0
+#define __UAPI_DEF_IPX_ROUTE_DEF		0
+
+#else /* defined(__NETIPX_IPX_H) */
+
+#define __UAPI_DEF_SOCKADDR_IPX			1
+#define __UAPI_DEF_IPX_ROUTE_DEFINITION		1
+#define __UAPI_DEF_IPX_INTERFACE_DEFINITION	1
+#define __UAPI_DEF_IPX_CONFIG_DATA		1
+#define __UAPI_DEF_IPX_ROUTE_DEF		1
+
+#endif /* defined(__NETIPX_IPX_H) */
+
 /* Definitions for xattr.h */
 #if defined(_SYS_XATTR_H)
 #define __UAPI_DEF_XATTR		0
@@ -179,6 +198,13 @@
 #define __UAPI_DEF_IN6_PKTINFO		1
 #define __UAPI_DEF_IP6_MTUINFO		1
 
+/* Definitions for ipx.h */
+#define __UAPI_DEF_SOCKADDR_IPX			1
+#define __UAPI_DEF_IPX_ROUTE_DEFINITION		1
+#define __UAPI_DEF_IPX_INTERFACE_DEFINITION	1
+#define __UAPI_DEF_IPX_CONFIG_DATA		1
+#define __UAPI_DEF_IPX_ROUTE_DEF		1
+
 /* Definitions for xattr.h */
 #define __UAPI_DEF_XATTR		1
 
-- 
2.8.1

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[PATCH v05 00/72] Userspace compile test and fixes for exported uapi header files Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 20:50 +0200
  [PATCH v05 31/72] include/uapi/linux/mroute.h: include linux/in.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 20:50 +0200
    Re: [PATCH v05 31/72] include/uapi/linux/mroute.h: include  linux/in.h David Miller <davem@davemloft.net> - 2016-08-23 01:40 +0200
  [PATCH v05 18/72] include/uapi/asm-generic/signal.h: use __kernel_size_t instead of size_t Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 20:50 +0200
  [PATCH v05 27/72] linux/if.h linux/hdlc/ioctl.h: move IFNAMSIZ definition to hdlc/ioctl.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 20:50 +0200
    Re: [PATCH v05 27/72] linux/if.h linux/hdlc/ioctl.h: move IFNAMSIZ  definition to hdlc/ioctl.h David Miller <davem@davemloft.net> - 2016-08-23 01:40 +0200
      Re: [PATCH v05 27/72] linux/if.h linux/hdlc/ioctl.h: move IFNAMSIZ  definition to hdlc/ioctl.h David Miller <davem@davemloft.net> - 2016-08-23 09:10 +0200
        Re: [PATCH v05 27/72] linux/if.h linux/hdlc/ioctl.h: move IFNAMSIZ  definition to hdlc/ioctl.h Frans Klaver <fransklaver@gmail.com> - 2016-08-23 10:10 +0200
          Re: [PATCH v05 27/72] linux/if.h linux/hdlc/ioctl.h: move IFNAMSIZ  definition to hdlc/ioctl.h Frans Klaver <fransklaver@gmail.com> - 2016-08-24 09:00 +0200
      Re: [PATCH v05 27/72] linux/if.h linux/hdlc/ioctl.h: move IFNAMSIZ  definition to hdlc/ioctl.h Frans Klaver <fransklaver@gmail.com> - 2016-08-23 09:20 +0200
  [PATCH v05 26/72] include/uapi/linux/if_pppox.h: include linux/in.h and linux/in6.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 20:50 +0200
    Re: [PATCH v05 26/72] include/uapi/linux/if_pppox.h: include  linux/in.h and linux/in6.h David Miller <davem@davemloft.net> - 2016-08-23 01:40 +0200
  [PATCH v05 17/72] asm-generic/sembuf.h: include asm/posix_types.h and asm/ipcbuf.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 20:50 +0200
  [PATCH v05 41/72] include/uapi/linux/atm_zatm.h: include linux/time.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 20:50 +0200
    Re: [PATCH v05 41/72] include/uapi/linux/atm_zatm.h: include  linux/time.h David Miller <davem@davemloft.net> - 2016-08-23 01:40 +0200
  [PATCH v05 37/72] include/uapi/linux/auto_fs.h: include linux/limits.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 20:50 +0200
    Re: [PATCH v05 37/72] include/uapi/linux/auto_fs.h: include  linux/limits.h Ian Kent <raven@themaw.net> - 2016-08-23 02:50 +0200
  [PATCH v05 30/72] include/uapi/linux/mqueue.h: include linux/types.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 20:50 +0200
  [PATCH v05 05/72] hsi_char.h: use __u32 from linux/types.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 20:50 +0200
    Re: [PATCH v05 05/72] hsi_char.h: use __u32 from linux/types.h Sebastian Reichel <sre@kernel.org> - 2016-08-22 23:00 +0200
  [PATCH v05 13/72] include/uapi/linux/sysctl.h: use __kernel_size_t instead of size_t Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 20:50 +0200
  [PATCH v05 39/72] include/uapi/linux/target_core_user.h: use __u8, __u16, __u32 and __u64 from linux/types.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 20:50 +0200
  [PATCH v05 32/72] include/uapi/linux/dlm_netlink.h: include linux/dlmconstants.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 20:50 +0200
  [PATCH v05 33/72] include/uapi/linux/ip6_tunnel.h: include linux/if.h and linux/in6.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 20:50 +0200
  [PATCH v05 28/72] include/uapi/linux/packet_diag.h: include linux/netdevice.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 20:50 +0200
  [PATCH v05 36/72] arch/x86/include/uapi/asm/signal.h: use __kernel_size_t instead of size_t Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 20:50 +0200
  [PATCH v05 38/72] include/uapi/linux/openvswitch.h: use __u32 from linux/types.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 20:50 +0200
    Re: [PATCH v05 38/72] include/uapi/linux/openvswitch.h: use __u32  from linux/types.h Stephen Hemminger <stephen@networkplumber.org> - 2016-08-22 21:40 +0200
      Re: [PATCH v05 38/72] include/uapi/linux/openvswitch.h: use __u32  from linux/types.h David Miller <davem@davemloft.net> - 2016-08-23 01:30 +0200
      Re: [PATCH v05 38/72] include/uapi/linux/openvswitch.h: use __u32  from linux/types.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-23 09:00 +0200
    Re: [PATCH v05 38/72] include/uapi/linux/openvswitch.h: use __u32  from linux/types.h David Miller <davem@davemloft.net> - 2016-08-23 01:40 +0200
  [PATCH v05 43/72] include/uapi/linux/btrfs.h: define NULL Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 20:50 +0200
  [PATCH v05 06/72] include/uapi/linux/hsi/cs-protocol.h: include linux/time.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 20:50 +0200
    Re: [PATCH v05 06/72] include/uapi/linux/hsi/cs-protocol.h: include  linux/time.h Sebastian Reichel <sre@kernel.org> - 2016-08-22 23:00 +0200
      Re: [PATCH v05 06/72] include/uapi/linux/hsi/cs-protocol.h: include  linux/time.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-23 09:00 +0200
  [PATCH v05 02/72] scripts/headers_compile_test.sh: compile test script for exported headers Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 20:50 +0200
  [PATCH v05 62/72] include/uapi/linux/openvswitch.h: use __u32 from linux/types.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:00 +0200
    Re: [PATCH v05 62/72] include/uapi/linux/openvswitch.h: use __u32  from linux/types.h David Miller <davem@davemloft.net> - 2016-08-23 01:40 +0200
  [PATCH v05 72/72] uapi route.h: glibc net/route.h compat fix Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:00 +0200
    Re: [PATCH v05 72/72] uapi route.h: glibc net/route.h compat fix David Miller <davem@davemloft.net> - 2016-08-23 01:40 +0200
      Re: [PATCH v05 66/72] uapi icmp.h: glibc netinet/ip_icmp.h header  file compatibility fixes Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-23 23:30 +0200
        Re: [PATCH v05 66/72] uapi icmp.h: glibc netinet/ip_icmp.h header  file compatibility fixes David Miller <davem@davemloft.net> - 2016-08-24 01:50 +0200
  [PATCH v05 66/72] uapi icmp.h: glibc netinet/ip_icmp.h header file compatibility fixes Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:00 +0200
    Re: [PATCH v05 66/72] uapi icmp.h: glibc netinet/ip_icmp.h header  file compatibility fixes David Miller <davem@davemloft.net> - 2016-08-23 01:40 +0200
    Re: [PATCH v05 66/72] uapi icmp.h: glibc netinet/ip_icmp.h header  file compatibility fixes David Miller <davem@davemloft.net> - 2016-08-24 01:50 +0200
  [PATCH v05 55/72] include/uapi/xen/gntdev.h: include xen/privcmd.h and define grant_ref_t Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:00 +0200
  [PATCH v05 21/72] include/uapi/linux/if_pppox.h: include linux/if.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:10 +0200
    Re: [PATCH v05 21/72] include/uapi/linux/if_pppox.h: include  linux/if.h Stephen Hemminger <stephen@networkplumber.org> - 2016-08-22 21:40 +0200
      Re: [PATCH v05 21/72] include/uapi/linux/if_pppox.h: include  linux/if.h David Miller <davem@davemloft.net> - 2016-08-23 01:30 +0200
      Re: [PATCH v05 21/72] include/uapi/linux/if_pppox.h: include  linux/if.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-23 08:50 +0200
    Re: [PATCH v05 21/72] include/uapi/linux/if_pppox.h: include  linux/if.h David Miller <davem@davemloft.net> - 2016-08-23 01:40 +0200
  [PATCH v05 57/72] coda_psdev.h: move upc_req definition from uapi to kernel side headers Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:10 +0200
  [PATCH v05 65/72] uapi fcntl.h: glibc fcntl.h header file compatibility fixes Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:10 +0200
  [PATCH v05 23/72] include/uapi/linux/ipv6_route.h: include linux/in6.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:20 +0200
    Re: [PATCH v05 23/72] include/uapi/linux/ipv6_route.h: include  linux/in6.h David Miller <davem@davemloft.net> - 2016-08-23 01:30 +0200
  [PATCH v05 19/72] include/uapi/linux/socket.h: include sys/socket.h in userspace Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:20 +0200
  [PATCH v05 60/72] arch/arm/include/uapi/asm/signal.h: use __kernel_size_t instead of size_t Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:20 +0200
    Re: [PATCH v05 60/72] arch/arm/include/uapi/asm/signal.h: use __kernel_size_t instead of size_t Arnd Bergmann <arnd@arndb.de> - 2016-08-24 17:10 +0200
  [PATCH v05 69/72] uapi rose.h: glibc netrose/rose.h header file compatibility fixes Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:20 +0200
  [PATCH v05 52/72] include/linux/sdb.h: use linux/types.h types instead of stdint.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:20 +0200
  [PATCH v05 54/72] include/uapi/xen/privcmd.h: fix compilation in userspace Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:20 +0200
    Re: [PATCH v05 54/72] include/uapi/xen/privcmd.h: fix compilation in  userspace Russell King - ARM Linux <linux@armlinux.org.uk> - 2016-08-23 12:10 +0200
      Re: [PATCH v05 54/72] include/uapi/xen/privcmd.h: fix compilation  in userspace Stefano Stabellini <sstabellini@kernel.org> - 2016-08-23 20:20 +0200
        Re: [PATCH v05 54/72] include/uapi/xen/privcmd.h: fix compilation in  userspace Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-23 22:40 +0200
          Re: [PATCH v05 54/72] include/uapi/xen/privcmd.h: fix compilation  in userspace Stefano Stabellini <sstabellini@kernel.org> - 2016-08-23 23:20 +0200
  [PATCH v05 24/72] include/uapi/linux/ipv6_route.h: include linux/in6.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:30 +0200
  [PATCH v05 56/72] include/uapi/xen/evtchn.h: include xen/privcmd.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:30 +0200
  [PATCH v05 63/72] include/uapi/sound/Kbuild: remove sound/asoc.h from userspace Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:30 +0200
  [PATCH v05 64/72] include/uapi/linux/ipx.h: fix conflicting defitions with glibc netipx/ipx.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:30 +0200
    Re: [PATCH v05 64/72] include/uapi/linux/ipx.h: fix conflicting  defitions with glibc netipx/ipx.h David Miller <davem@davemloft.net> - 2016-08-23 01:40 +0200
  [PATCH v05 20/72] include/uapi/linux/rds.h: include linux/socket.h and linux/types.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:30 +0200
  [PATCH v05 58/72] include/uapi/linux/elfcore.h: remove non-compiling userspace parts Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:30 +0200
  [PATCH v05 70/72] uapi time.h: glibc time.h header file compatibility fixes Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:30 +0200
  [PATCH v05 68/72] uapi ax25.h: glibc netax25/ax25.h header file compatibility fixes Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:30 +0200
    Re: [PATCH v05 68/72] uapi ax25.h: glibc netax25/ax25.h header  file compatibility fixes David Miller <davem@davemloft.net> - 2016-08-23 01:40 +0200
  [PATCH v05 50/72] include/uapi/linux/fuse.h: use linux/types.h also in userspace Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:30 +0200
    Re: [PATCH v05 50/72] include/uapi/linux/fuse.h: use linux/types.h  also in userspace Miklos Szeredi <miklos@szeredi.hu> - 2016-08-23 09:20 +0200
      Re: [PATCH v05 50/72] include/uapi/linux/fuse.h: use linux/types.h  also in userspace Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-23 09:50 +0200
  [PATCH v05 67/72] uapi uio.h: glibc sys/uio.h header file compatibility fixes Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:30 +0200
  [PATCH v05 59/72] include/uapi/linux/errqueue.h: include time.h in userspace Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:40 +0200
  [PATCH v05 53/72] include/linux/xz.h: use linux/types.h types instead of stdint.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:40 +0200
  [PATCH v05 61/72] include/uapi/rdma/rdma_user_rxe.h: include in.h and in6.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:40 +0200
    Re: [PATCH v05 61/72] include/uapi/rdma/rdma_user_rxe.h: include in.h  and in6.h Doug Ledford <dledford@redhat.com> - 2016-08-23 17:10 +0200
  [PATCH v05 71/72] uapi term*.h: glibc termios.h header file compatibility fixes Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:50 +0200
  [PATCH v05 22/72] include/uapi/linux/if_tunnel.h: include linux/if.h, linux/ip.h and linux/in6.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:50 +0200
    Re: [PATCH v05 22/72] include/uapi/linux/if_tunnel.h: include  linux/if.h, linux/ip.h and linux/in6.h David Miller <davem@davemloft.net> - 2016-08-23 01:30 +0200
  [PATCH v05 51/72] include/linux/ipmi-fru.h: use linux/types.h instead of stdint.h Mikko Rapeli <mikko.rapeli@iki.fi> - 2016-08-22 21:50 +0200

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