Re: [Xen-devel] [PATCH v8 4/5] x86/paravirt: Remove const mark from x86_hyper_xen_hvm variable

2019-07-17 Thread Juergen Gross

On 17.07.19 19:22, Joe Perches wrote:

On Wed, 2019-07-17 at 08:49 +0200, Juergen Gross wrote:

On 17.07.19 08:46, Joe Perches wrote:

On Tue, 2019-07-16 at 12:26 +0800, Zhenzhong Duan wrote:

.. as "nopv" support needs it to be changeable at boot up stage.

Checkpatch reports warning, so move variable declarations from
hypervisor.c to hypervisor.h

[]

diff --git a/arch/x86/xen/enlighten_hvm.c b/arch/x86/xen/enlighten_hvm.c

[]

@@ -259,7 +259,7 @@ static __init void xen_hvm_guest_late_init(void)
   #endif
   }
   
-const __initconst struct hypervisor_x86 x86_hyper_xen_hvm = {

+struct hypervisor_x86 x86_hyper_xen_hvm __initdata = {


static?


It is being referenced from arch/x86/kernel/cpu/hypervisor.c


But wasn't it also removed from the list of externs?

Rereading the .h file, no it wasn't.  I missed that.

Perhaps the extern list could be reordered to move this
x86_hyper_xen_hvm to be next to x86_hyper_type.

I also suggest that "extern bool nopv" might be a bit
non-specific and could use a longer identifier.


You are a little bit late. It has been this way since V5 of the series
posted on July 3rd.

I have pushed the series to my tree already and I'm about to send the
pull request.

Followup patches welcome. :-)


Juergen

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Re: [Xen-devel] [PATCH v8 4/5] x86/paravirt: Remove const mark from x86_hyper_xen_hvm variable

2019-07-17 Thread Joe Perches
On Wed, 2019-07-17 at 08:49 +0200, Juergen Gross wrote:
> On 17.07.19 08:46, Joe Perches wrote:
> > On Tue, 2019-07-16 at 12:26 +0800, Zhenzhong Duan wrote:
> > > .. as "nopv" support needs it to be changeable at boot up stage.
> > > 
> > > Checkpatch reports warning, so move variable declarations from
> > > hypervisor.c to hypervisor.h
> > []
> > > diff --git a/arch/x86/xen/enlighten_hvm.c b/arch/x86/xen/enlighten_hvm.c
> > []
> > > @@ -259,7 +259,7 @@ static __init void xen_hvm_guest_late_init(void)
> > >   #endif
> > >   }
> > >   
> > > -const __initconst struct hypervisor_x86 x86_hyper_xen_hvm = {
> > > +struct hypervisor_x86 x86_hyper_xen_hvm __initdata = {
> > 
> > static?
> 
> It is being referenced from arch/x86/kernel/cpu/hypervisor.c

But wasn't it also removed from the list of externs?

Rereading the .h file, no it wasn't.  I missed that.

Perhaps the extern list could be reordered to move this
x86_hyper_xen_hvm to be next to x86_hyper_type.

I also suggest that "extern bool nopv" might be a bit
non-specific and could use a longer identifier.



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Re: [Xen-devel] [PATCH v8 4/5] x86/paravirt: Remove const mark from x86_hyper_xen_hvm variable

2019-07-17 Thread Joe Perches
On Tue, 2019-07-16 at 12:26 +0800, Zhenzhong Duan wrote:
> .. as "nopv" support needs it to be changeable at boot up stage.
> 
> Checkpatch reports warning, so move variable declarations from
> hypervisor.c to hypervisor.h
[]
> diff --git a/arch/x86/xen/enlighten_hvm.c b/arch/x86/xen/enlighten_hvm.c
[]
> @@ -259,7 +259,7 @@ static __init void xen_hvm_guest_late_init(void)
>  #endif
>  }
>  
> -const __initconst struct hypervisor_x86 x86_hyper_xen_hvm = {
> +struct hypervisor_x86 x86_hyper_xen_hvm __initdata = {

static?



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Re: [Xen-devel] [PATCH v8 4/5] x86/paravirt: Remove const mark from x86_hyper_xen_hvm variable

2019-07-17 Thread Juergen Gross

On 17.07.19 08:46, Joe Perches wrote:

On Tue, 2019-07-16 at 12:26 +0800, Zhenzhong Duan wrote:

.. as "nopv" support needs it to be changeable at boot up stage.

Checkpatch reports warning, so move variable declarations from
hypervisor.c to hypervisor.h

[]

diff --git a/arch/x86/xen/enlighten_hvm.c b/arch/x86/xen/enlighten_hvm.c

[]

@@ -259,7 +259,7 @@ static __init void xen_hvm_guest_late_init(void)
  #endif
  }
  
-const __initconst struct hypervisor_x86 x86_hyper_xen_hvm = {

+struct hypervisor_x86 x86_hyper_xen_hvm __initdata = {


static?


It is being referenced from arch/x86/kernel/cpu/hypervisor.c


Juergen

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Re: [Xen-devel] [PATCH v8 4/5] x86/paravirt: Remove const mark from x86_hyper_xen_hvm variable

2019-07-16 Thread Juergen Gross

On 16.07.19 06:26, Zhenzhong Duan wrote:

.. as "nopv" support needs it to be changeable at boot up stage.

Checkpatch reports warning, so move variable declarations from
hypervisor.c to hypervisor.h

Signed-off-by: Zhenzhong Duan 


Reviewed-by: Juergen Gross 

... and complete series applied to xen/tip.git for-linus-5.3a


Juergen

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