Re: [Xen-devel] [PATCH] tools/libxc/xc_dom_arm: add missing variable initialization

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Sat, Aug 19, 2017 at 04:21:42PM +0200, Thomas Petazzoni wrote:
> From: Bernd Kuhls <bernd.kuhls@xxxxxxxxxxx>
> 
> The variable domctl.u.address_size.size may remain uninitialized if
> guest_type is not one of xen-3.0-aarch64 or xen-3.0-armv7l. And the
> code precisely checks if this variable is still 0 to decide if the
> guest type is supported or not.
> 
> This fixes the following build failure with gcc 7.x:
> 
> xc_dom_arm.c:229:31: error: 'domctl.u.address_size.size' may be used 
> uninitialized in this function [-Werror=maybe-uninitialized]
>      if ( domctl.u.address_size.size == 0 )
> 
> Patch originally taken from
> https://www.mail-archive.com/xen-devel@xxxxxxxxxxxxx/msg109313.html.
> 
> Signed-off-by: Bernd Kuhls <bernd.kuhls@xxxxxxxxxxx>
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>


Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>

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