[xen master] tools/libxl: Fix virtio build error for 32-bit platforms

[patchbot@xxxxxxx]

commit c8aaebccc8e8fb5d90080e664202b0011ce4d0bd
Author:     Viresh Kumar <viresh.kumar@xxxxxxxxxx>
AuthorDate: Thu Dec 15 19:01:40 2022 +0530
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Thu Dec 15 18:04:53 2022 +0000

    tools/libxl: Fix virtio build error for 32-bit platforms
    
    The field 'base' in 'struct libxl_device_virtio' is defined as uint64,
    while we are printing it with '%lu', which is 32bit only 32-bit
    platforms. And so generates a error like:
    
      libxl_internal.h:4388:51: error: format '%lu' expects argument of type 
'long
      unsigned int', but argument 3 has type 'uint64_t' {aka 'long long unsigned
      int'} [-Werror=format=]
    
    Fix it by switching to a 64bit PRI instead.
    
    While fixing this, switch from decimal to hex which is the more natural base
    to use for a field like this.
    
    Fixes: 43ba5202e2ee ("libxl: add support for generic virtio device")
    Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
 tools/libs/light/libxl_virtio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/libs/light/libxl_virtio.c b/tools/libs/light/libxl_virtio.c
index 6a38def2fa..faada49e18 100644
--- a/tools/libs/light/libxl_virtio.c
+++ b/tools/libs/light/libxl_virtio.c
@@ -45,12 +45,12 @@ static int libxl__set_xenstore_virtio(libxl__gc *gc, 
uint32_t domid,
     const char *transport = 
libxl_virtio_transport_to_string(virtio->transport);
 
     flexarray_append_pair(back, "irq", GCSPRINTF("%u", virtio->irq));
-    flexarray_append_pair(back, "base", GCSPRINTF("%lu", virtio->base));
+    flexarray_append_pair(back, "base", GCSPRINTF("%#"PRIx64, virtio->base));
     flexarray_append_pair(back, "type", GCSPRINTF("%s", virtio->type));
     flexarray_append_pair(back, "transport", GCSPRINTF("%s", transport));
 
     flexarray_append_pair(front, "irq", GCSPRINTF("%u", virtio->irq));
-    flexarray_append_pair(front, "base", GCSPRINTF("%lu", virtio->base));
+    flexarray_append_pair(front, "base", GCSPRINTF("%#"PRIx64, virtio->base));
     flexarray_append_pair(front, "type", GCSPRINTF("%s", virtio->type));
     flexarray_append_pair(front, "transport", GCSPRINTF("%s", transport));
 
--
generated by git-patchbot for /home/xen/git/xen.git#master