Xiao Guangrong
2009-Nov-30 06:17 UTC
[Xen-devel] [PATCH] xen: cleanup for xen_pv_domain()/xen_hvm_domain()
Remove unnecessary judgment in xen_pv_domain() and xen_hvm_domain() Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> --- arch/x86/include/asm/xen/hypervisor.h | 6 ++---- 1 files changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/x86/include/asm/xen/hypervisor.h b/arch/x86/include/asm/xen/hypervisor.h index d5b7e90..f94bd0a 100644 --- a/arch/x86/include/asm/xen/hypervisor.h +++ b/arch/x86/include/asm/xen/hypervisor.h @@ -50,10 +50,8 @@ extern enum xen_domain_type xen_domain_type; #endif #define xen_domain() (xen_domain_type != XEN_NATIVE) -#define xen_pv_domain() (xen_domain() && \ - xen_domain_type == XEN_PV_DOMAIN) -#define xen_hvm_domain() (xen_domain() && \ - xen_domain_type == XEN_HVM_DOMAIN) +#define xen_pv_domain() (xen_domain_type == XEN_PV_DOMAIN) +#define xen_hvm_domain() (xen_domain_type == XEN_HVM_DOMAIN) #ifdef CONFIG_XEN_DOM0 #include <xen/interface/xen.h> -- 1.6.1.2 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Jeremy Fitzhardinge
2009-Nov-30 19:07 UTC
[Xen-devel] Re: [PATCH] xen: cleanup for xen_pv_domain()/xen_hvm_domain()
On 11/29/09 22:17, Xiao Guangrong wrote:> Remove unnecessary judgment in xen_pv_domain() and xen_hvm_domain() >I''d prefer not to change it. These changes make no difference to the generated code, and I see a small semantic difference between "is this a Xen domain?" and "what kind of Xen domain is it?", as the latter on really makes sense if it is in fact a Xen domain; the fact that xen_domain() is also implemented in terms of xen_domain_type is just a detail. J> Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> > --- > arch/x86/include/asm/xen/hypervisor.h | 6 ++---- > 1 files changed, 2 insertions(+), 4 deletions(-) > > diff --git a/arch/x86/include/asm/xen/hypervisor.h b/arch/x86/include/asm/xen/hypervisor.h > index d5b7e90..f94bd0a 100644 > --- a/arch/x86/include/asm/xen/hypervisor.h > +++ b/arch/x86/include/asm/xen/hypervisor.h > @@ -50,10 +50,8 @@ extern enum xen_domain_type xen_domain_type; > #endif > > #define xen_domain() (xen_domain_type != XEN_NATIVE) > -#define xen_pv_domain() (xen_domain() && \ > - xen_domain_type == XEN_PV_DOMAIN) > -#define xen_hvm_domain() (xen_domain() && \ > - xen_domain_type == XEN_HVM_DOMAIN) > +#define xen_pv_domain() (xen_domain_type == XEN_PV_DOMAIN) > +#define xen_hvm_domain() (xen_domain_type == XEN_HVM_DOMAIN) > > #ifdef CONFIG_XEN_DOM0 > #include <xen/interface/xen.h> >_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel