Re: [PATCH v2 0/2] xen: error handling and FreeBSD compatibility fixes

[David Woodhouse <dwmw2@xxxxxxxxxxxxx>]

On Fri, 2025-01-10 at 10:35 +0100, Roger Pau Monne wrote:
> Hello,
> 
> First patch from David introduces a new helper to fetch xenstore nodes,
> while second patch removes the usage of scanf related functions with the
> "%ms" format specifier, as it's not supported by the FreeBSD scanf libc
> implementation.
> 
> Thanks, Roger.

Thanks. I've got a handful of non-bugfix cleanups to use the new
xs_node_read in my tree at
https://git.infradead.org/users/dwmw2/qemu.git/shortlog/refs/heads/xs_node_read

David Woodhouse (4):
      hw/xen: Use xs_node_read() from xs_node_vscanf()
      hw/xen: Use xs_node_read() from xen_console_get_name()
      hw/xen: Use xs_node_read() from xen_netdev_get_name()
      hw/xen: Use xs_node_read() from xenstore_read_str() instead of 
open-coding it

I'm slightly dubious about the last one; xen_pvdev.c didn't previously
use anything from xen-bus-helper.c and even hardcodes zero for
XBT_NULL. And I look at the way it deliberately reallocates the string,
and wonder if we should be doing that in qemu_xen_xs_read() for the
true Xen case. And does it even matter anywhere except Windows?

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