net: Only show vhost-user in the help text if CONFIG_POSIX is defined
According to net/Makefile.objs we only link in the vhost-user code if CONFIG_POSIX has been set. So the help screen should also only show this information if CONFIG_POSIX has been defined. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
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			@ -1998,8 +1998,10 @@ DEF("netdev", HAS_ARG, QEMU_OPTION_netdev,
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    "                VALE port (created on the fly) called 'name' ('nmname' is name of the \n"
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    "                netmap device, defaults to '/dev/netmap')\n"
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#endif
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#ifdef CONFIG_POSIX
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    "-netdev vhost-user,id=str,chardev=dev[,vhostforce=on|off]\n"
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    "                configure a vhost-user network, backed by a chardev 'dev'\n"
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#endif
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    "-netdev hubport,id=str,hubid=n[,netdev=nd]\n"
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    "                configure a hub port on QEMU VLAN 'n'\n", QEMU_ARCH_ALL)
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DEF("net", HAS_ARG, QEMU_OPTION_net,
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