0001-libxl-only-write-physical-device-on-Linux-and-NetBSD.pa

From 2724234dd7ef6a7be9b27a9be2832d00cbb61bd6 Mon Sep 17 00:00:00 2001
From: Roger Pau Monne <roger.pau@citrix.com>
Date: Thu, 21 May 2015 16:03:24 +0200
Subject: [PATCH RFC 1/5] libxl: only write physical-device on Linux and NetBSD
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physical-device is only used by Linux and NetBSD blkback, there's no need to
write it when the host is using a different OS.

Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Cc: Ian Jackson <ian.jackson@eu.citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
---
 tools/libxl/libxl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/libxl/libxl.c b/tools/libxl/libxl.c
index 312a371..63210b6 100644
--- a/tools/libxl/libxl.c
+++ b/tools/libxl/libxl.c
@@ -2469,10 +2469,12 @@ static void device_disk_add(libxl__egc *egc, uint32_t domid,
                  */
                 if (!disk->script &&
                     disk->backend_domid == LIBXL_TOOLSTACK_DOMID) {
+#if defined(__linux__) || defined(__NetBSD__)
                     int major, minor;
                     libxl__device_physdisk_major_minor(dev, &major, &minor);
                     flexarray_append_pair(back, "physical-device",
                             libxl__sprintf(gc, "%x:%x", major, minor));
+#endif /* __linux__ || __NetBSD__ */
                 }

                 assert(device->backend_kind == LIBXL__DEVICE_KIND_VBD);