Upgrade to 4.4.50-rt62

[kvmfornfv.git] / kernel / include / uapi / linux / if.h

diff --git a/kernel/include/uapi/linux/if.h b/kernel/include/uapi/linux/if.h
index 9cf2394..752f5dc 100644 (file)
--- a/kernel/include/uapi/linux/if.h
+++ b/kernel/include/uapi/linux/if.h
@@ -19,14 +19,20 @@
 #ifndef _LINUX_IF_H
 #define _LINUX_IF_H
 
+#include <linux/libc-compat.h>          /* for compatibility with glibc */
 #include <linux/types.h>               /* for "__kernel_caddr_t" et al */
 #include <linux/socket.h>              /* for "struct sockaddr" et al  */
 #include <linux/compiler.h>            /* for "__user" et al           */
 
+#if __UAPI_DEF_IF_IFNAMSIZ
 #define        IFNAMSIZ        16
+#endif /* __UAPI_DEF_IF_IFNAMSIZ */
 #define        IFALIASZ        256
 #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 && \
+    __UAPI_DEF_IF_NET_DEVICE_FLAGS != 0
 /**
  * enum net_device_flags - &struct net_device flags
  *
@@ -68,6 +74,8 @@
  * @IFF_ECHO: echo sent packets. Volatile.
  */
 enum net_device_flags {
+/* for compatibility with glibc net/if.h */
+#if __UAPI_DEF_IF_NET_DEVICE_FLAGS
        IFF_UP                          = 1<<0,  /* sysfs */
        IFF_BROADCAST                   = 1<<1,  /* volatile */
        IFF_DEBUG                       = 1<<2,  /* sysfs */
@@ -84,11 +92,17 @@ enum net_device_flags {
        IFF_PORTSEL                     = 1<<13, /* sysfs */
        IFF_AUTOMEDIA                   = 1<<14, /* sysfs */
        IFF_DYNAMIC                     = 1<<15, /* sysfs */
+#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS */
+#if __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO
        IFF_LOWER_UP                    = 1<<16, /* volatile */
        IFF_DORMANT                     = 1<<17, /* volatile */
        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 */
 
+/* for compatibility with glibc net/if.h */
+#if __UAPI_DEF_IF_NET_DEVICE_FLAGS
 #define IFF_UP                         IFF_UP
 #define IFF_BROADCAST                  IFF_BROADCAST
 #define IFF_DEBUG                      IFF_DEBUG
@@ -105,9 +119,13 @@ enum net_device_flags {
 #define IFF_PORTSEL                    IFF_PORTSEL
 #define IFF_AUTOMEDIA                  IFF_AUTOMEDIA
 #define IFF_DYNAMIC                    IFF_DYNAMIC
+#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS */
+
+#if __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO
 #define IFF_LOWER_UP                   IFF_LOWER_UP
 #define IFF_DORMANT                    IFF_DORMANT
 #define IFF_ECHO                       IFF_ECHO
+#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO */
 
 #define IFF_VOLATILE   (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST|IFF_ECHO|\
                IFF_MASTER|IFF_SLAVE|IFF_RUNNING|IFF_LOWER_UP|IFF_DORMANT)
@@ -166,6 +184,8 @@ enum {
  *     being very small might be worth keeping for clean configuration.
  */
 
+/* for compatibility with glibc net/if.h */
+#if __UAPI_DEF_IF_IFMAP
 struct ifmap {
        unsigned long mem_start;
        unsigned long mem_end;
@@ -175,6 +195,7 @@ struct ifmap {
        unsigned char port;
        /* 3 bytes spare */
 };
+#endif /* __UAPI_DEF_IF_IFMAP */
 
 struct if_settings {
        unsigned int type;      /* Type of physical device or protocol */
@@ -200,6 +221,8 @@ struct if_settings {
  * remainder may be interface specific.
  */
 
+/* for compatibility with glibc net/if.h */
+#if __UAPI_DEF_IF_IFREQ
 struct ifreq {
 #define IFHWADDRLEN    6
        union
@@ -223,6 +246,7 @@ struct ifreq {
                struct  if_settings ifru_settings;
        } ifr_ifru;
 };
+#endif /* __UAPI_DEF_IF_IFREQ */
 
 #define ifr_name       ifr_ifrn.ifrn_name      /* interface name       */
 #define ifr_hwaddr     ifr_ifru.ifru_hwaddr    /* MAC address          */
@@ -249,6 +273,8 @@ struct ifreq {
  * must know all networks accessible).
  */
 
+/* for compatibility with glibc net/if.h */
+#if __UAPI_DEF_IF_IFCONF
 struct ifconf  {
        int     ifc_len;                        /* size of buffer       */
        union {
@@ -256,6 +282,8 @@ struct ifconf  {
                struct ifreq __user *ifcu_req;
        } ifc_ifcu;
 };
+#endif /* __UAPI_DEF_IF_IFCONF */
+
 #define        ifc_buf ifc_ifcu.ifcu_buf               /* buffer address       */
 #define        ifc_req ifc_ifcu.ifcu_req               /* array of structures  */