Re: [Xen-devel] [PATCH v2] x86/domctl: remove impossible condition in XEN_DOMCTL_getpageframeinfo3

2018-03-09 Thread Jan Beulich
>>> On 09.03.18 at 17:23, wrote: > --- a/xen/arch/x86/domctl.c > +++ b/xen/arch/x86/domctl.c > @@ -415,14 +415,13 @@ long arch_do_domctl( > > case XEN_DOMCTL_getpageframeinfo3: > { > -unsigned int num = domctl->u.getpageframeinfo3.num; > +unsigned long

[Xen-devel] [PATCH v2] x86/domctl: remove impossible condition in XEN_DOMCTL_getpageframeinfo3

2018-03-09 Thread Olaf Hering
The value of num is always the same as domctl->u.getpageframeinfo3.num, it was assigned just a few lines before. Avoid truncation by making num the same size as i, which is the only place where num is used. Signed-off-by: Olaf Hering --- xen/arch/x86/domctl.c | 5 ++--- 1 file