diff mbox

xen/apic: Update the comment for apic_id_mask

Message ID 1467862098-2374-1-git-send-email-weijg.fnst@cn.fujitsu.com (mailing list archive)
State New, archived
Headers show

Commit Message

Wei Jiangang July 7, 2016, 3:28 a.m. UTC
verify_local_APIC() had been removed by
commit 4399c03c6780 ("x86/apic: Remove verify_local_APIC()"),
so apic_id_mask isn't used by it.

Signed-off-by: Wei Jiangang <weijg.fnst@cn.fujitsu.com>
---
 arch/x86/xen/apic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Konrad Rzeszutek Wilk July 7, 2016, 3:25 p.m. UTC | #1
On Thu, Jul 07, 2016 at 11:28:18AM +0800, Wei Jiangang wrote:
> verify_local_APIC() had been removed by
> commit 4399c03c6780 ("x86/apic: Remove verify_local_APIC()"),
> so apic_id_mask isn't used by it.

CC-ing the proper maintainers.
> 
> Signed-off-by: Wei Jiangang <weijg.fnst@cn.fujitsu.com>
> ---
>  arch/x86/xen/apic.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/x86/xen/apic.c b/arch/x86/xen/apic.c
> index db52a7fafcc2..9cbb1f48381b 100644
> --- a/arch/x86/xen/apic.c
> +++ b/arch/x86/xen/apic.c
> @@ -177,7 +177,7 @@ static struct apic xen_pv_apic = {
>  
>  	.get_apic_id 			= xen_get_apic_id,
>  	.set_apic_id 			= xen_set_apic_id, /* Can be NULL on 32-bit. */
> -	.apic_id_mask			= 0xFF << 24, /* Used by verify_local_APIC. Match with what xen_get_apic_id does. */
> +	.apic_id_mask			= 0xFF << 24, /* Match with what xen_get_apic_id does. */
>  
>  	.cpu_mask_to_apicid_and		= flat_cpu_mask_to_apicid_and,
>  
> -- 
> 1.9.3
> 
> 
> 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> https://lists.xen.org/xen-devel
Boris Ostrovsky July 7, 2016, 3:37 p.m. UTC | #2
On 07/07/2016 11:25 AM, Konrad Rzeszutek Wilk wrote:
> On Thu, Jul 07, 2016 at 11:28:18AM +0800, Wei Jiangang wrote:
>> verify_local_APIC() had been removed by
>> commit 4399c03c6780 ("x86/apic: Remove verify_local_APIC()"),
>> so apic_id_mask isn't used by it.

Is anyone actually using this field? It looks like 4399c03c6780 removed
the only user.

-boris


> CC-ing the proper maintainers.
>> Signed-off-by: Wei Jiangang <weijg.fnst@cn.fujitsu.com>
>> ---
>>  arch/x86/xen/apic.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/arch/x86/xen/apic.c b/arch/x86/xen/apic.c
>> index db52a7fafcc2..9cbb1f48381b 100644
>> --- a/arch/x86/xen/apic.c
>> +++ b/arch/x86/xen/apic.c
>> @@ -177,7 +177,7 @@ static struct apic xen_pv_apic = {
>>  
>>  	.get_apic_id 			= xen_get_apic_id,
>>  	.set_apic_id 			= xen_set_apic_id, /* Can be NULL on 32-bit. */
>> -	.apic_id_mask			= 0xFF << 24, /* Used by verify_local_APIC. Match with what xen_get_apic_id does. */
>> +	.apic_id_mask			= 0xFF << 24, /* Match with what xen_get_apic_id does. */
>>  
>>  	.cpu_mask_to_apicid_and		= flat_cpu_mask_to_apicid_and,
>>  
>> -- 
>> 1.9.3
>>
>>
>>
>>
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@lists.xen.org
>> https://lists.xen.org/xen-devel
Wei Jiangang July 13, 2016, 7:56 a.m. UTC | #3
On Thu, 2016-07-07 at 11:37 -0400, Boris Ostrovsky wrote:
> On 07/07/2016 11:25 AM, Konrad Rzeszutek Wilk wrote:

> > On Thu, Jul 07, 2016 at 11:28:18AM +0800, Wei Jiangang wrote:

> >> verify_local_APIC() had been removed by

> >> commit 4399c03c6780 ("x86/apic: Remove verify_local_APIC()"),

> >> so apic_id_mask isn't used by it.

> 

> Is anyone actually using this field? It looks like 4399c03c6780 removed

> the only user.


Indeed, the field is useless.
Maybe we can remove this field from the struct apic .
what's your opinion?

Thanks,
wei
> 

> -boris

> 

> 

> > CC-ing the proper maintainers.

> >> Signed-off-by: Wei Jiangang <weijg.fnst@cn.fujitsu.com>

> >> ---

> >>  arch/x86/xen/apic.c | 2 +-

> >>  1 file changed, 1 insertion(+), 1 deletion(-)

> >>

> >> diff --git a/arch/x86/xen/apic.c b/arch/x86/xen/apic.c

> >> index db52a7fafcc2..9cbb1f48381b 100644

> >> --- a/arch/x86/xen/apic.c

> >> +++ b/arch/x86/xen/apic.c

> >> @@ -177,7 +177,7 @@ static struct apic xen_pv_apic = {

> >>  

> >>  	.get_apic_id 			= xen_get_apic_id,

> >>  	.set_apic_id 			= xen_set_apic_id, /* Can be NULL on 32-bit. */

> >> -	.apic_id_mask			= 0xFF << 24, /* Used by verify_local_APIC. Match with what xen_get_apic_id does. */

> >> +	.apic_id_mask			= 0xFF << 24, /* Match with what xen_get_apic_id does. */

> >>  

> >>  	.cpu_mask_to_apicid_and		= flat_cpu_mask_to_apicid_and,

> >>  

> >> -- 

> >> 1.9.3

> >>

> >>

> >>

> >>

> >> _______________________________________________

> >> Xen-devel mailing list

> >> Xen-devel@lists.xen.org

> >> https://lists.xen.org/xen-devel

> 

> 

> 

>
Boris Ostrovsky July 13, 2016, 6:51 p.m. UTC | #4
On 07/13/2016 03:56 AM, Wei, Jiangang wrote:
> On Thu, 2016-07-07 at 11:37 -0400, Boris Ostrovsky wrote:
>> On 07/07/2016 11:25 AM, Konrad Rzeszutek Wilk wrote:
>>> On Thu, Jul 07, 2016 at 11:28:18AM +0800, Wei Jiangang wrote:
>>>> verify_local_APIC() had been removed by
>>>> commit 4399c03c6780 ("x86/apic: Remove verify_local_APIC()"),
>>>> so apic_id_mask isn't used by it.
>> Is anyone actually using this field? It looks like 4399c03c6780 removed
>> the only user.
> Indeed, the field is useless.
> Maybe we can remove this field from the struct apic .
> what's your opinion?


Since noone seems to be using those I think it can be removed.

-boris


>
> Thanks,
> wei
>> -boris
>>
>>
>>> CC-ing the proper maintainers.
>>>> Signed-off-by: Wei Jiangang <weijg.fnst@cn.fujitsu.com>
>>>> ---
>>>>  arch/x86/xen/apic.c | 2 +-
>>>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>>>
>>>> diff --git a/arch/x86/xen/apic.c b/arch/x86/xen/apic.c
>>>> index db52a7fafcc2..9cbb1f48381b 100644
>>>> --- a/arch/x86/xen/apic.c
>>>> +++ b/arch/x86/xen/apic.c
>>>> @@ -177,7 +177,7 @@ static struct apic xen_pv_apic = {
>>>>  
>>>>  	.get_apic_id 			= xen_get_apic_id,
>>>>  	.set_apic_id 			= xen_set_apic_id, /* Can be NULL on 32-bit. */
>>>> -	.apic_id_mask			= 0xFF << 24, /* Used by verify_local_APIC. Match with what xen_get_apic_id does. */
>>>> +	.apic_id_mask			= 0xFF << 24, /* Match with what xen_get_apic_id does. */
>>>>  
>>>>  	.cpu_mask_to_apicid_and		= flat_cpu_mask_to_apicid_and,
>>>>  
>>>> -- 
>>>> 1.9.3
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> Xen-devel mailing list
>>>> Xen-devel@lists.xen.org
>>>> https://lists.xen.org/xen-devel
>>
>>
>>
>
>
diff mbox

Patch

diff --git a/arch/x86/xen/apic.c b/arch/x86/xen/apic.c
index db52a7fafcc2..9cbb1f48381b 100644
--- a/arch/x86/xen/apic.c
+++ b/arch/x86/xen/apic.c
@@ -177,7 +177,7 @@  static struct apic xen_pv_apic = {
 
 	.get_apic_id 			= xen_get_apic_id,
 	.set_apic_id 			= xen_set_apic_id, /* Can be NULL on 32-bit. */
-	.apic_id_mask			= 0xFF << 24, /* Used by verify_local_APIC. Match with what xen_get_apic_id does. */
+	.apic_id_mask			= 0xFF << 24, /* Match with what xen_get_apic_id does. */
 
 	.cpu_mask_to_apicid_and		= flat_cpu_mask_to_apicid_and,