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From: "Jan Beulich" <JBeulich@suse.com>
To: Corneliu ZUZU <czuzu@bitdefender.com>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>,
	Tamas K Lengyel <tamas@tklengyel.com>,
	Razvan Cojocaru <rcojocaru@bitdefender.com>,
	xen-devel@lists.xen.org
Subject: Re: [PATCH 6/7] vm-event/arm: move hvm_event_cr->common vm_event_monitor_cr
Date: Fri, 17 Jun 2016 02:38:06 -0600	[thread overview]
Message-ID: <5763D30E02000078000F5F43@prv-mh.provo.novell.com> (raw)
In-Reply-To: <d280cc91-46cf-a97d-4707-0c63980b6fbf@bitdefender.com>

>>> On 17.06.16 at 10:25, <czuzu@bitdefender.com> wrote:
> On 6/16/2016 6:16 PM, Jan Beulich wrote:
>> And looking at all the uses of this variable I get the impression that
>> you really want a shorthand for &d->arch.monitor (if any such
>> helper variable is worthwhile to have here in the first place).
> 
> Well, this was a simple cut-paste operation, not very old content aware :)
> Personally I prefer the current shorthand (ad) (seems more intuitive and 
> is consistent with the other XEN_DOMCTL_MONITOR_EVENT_* cases), but if 
> you prefer I'll change that shorthand to am = &d->arch.monitor?

I'd prefer either no shorthand, or one eliminating the longest common
prefix across all uses.

>>> --- a/xen/include/asm-x86/monitor.h
>>> +++ b/xen/include/asm-x86/monitor.h
>>> @@ -24,8 +24,6 @@
>>>   
>>>   #include <xen/sched.h>
>>>   
>>> -#define monitor_ctrlreg_bitmask(ctrlreg_index) (1U << (ctrlreg_index))
>>> -
>>>   static inline
>>>   int arch_monitor_domctl_op(struct domain *d, struct xen_domctl_monitor_op *mop)
>>>   {
>>> --- a/xen/include/xen/monitor.h
>>> +++ b/xen/include/xen/monitor.h
>>> @@ -25,6 +25,10 @@
>>>   struct domain;
>>>   struct xen_domctl_monitor_op;
>>>   
>>> +#if CONFIG_X86
>>> +#define monitor_ctrlreg_bitmask(ctrlreg_index) (1U << (ctrlreg_index))
>>> +#endif
>> What's the point in removing this from the x86 header if then it
>> needs to be put in such a conditional? If the conditional gets
>> dropped in the next patch, then I think you have two options:
>> Leave it where it is here, and move it there. Or move it here,
>> but omit the conditional right away - I can't see this definition
>> being present to harm the ARM build in any way.
> 
> Meld comment above.

I don't follow - having split the patches for reviewability was
a good idea. I merely commented on some oddities resulting
from that split, which - afaict - could be easily corrected without
folding the patches together.

Jan


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  reply	other threads:[~2016-06-17  8:38 UTC|newest]

Thread overview: 73+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-16 14:04 [PATCH 0/7] vm-event: Implement ARM support for control-register writes Corneliu ZUZU
2016-06-16 14:06 ` [PATCH 1/7] minor (formatting) fixes Corneliu ZUZU
2016-06-16 14:24   ` Jan Beulich
2016-06-16 19:19     ` Corneliu ZUZU
2016-06-17  7:06       ` Jan Beulich
2016-06-17 10:46         ` Corneliu ZUZU
2016-06-16 16:02   ` Tamas K Lengyel
2016-06-17  8:33     ` Corneliu ZUZU
2016-06-17  8:36       ` Razvan Cojocaru
2016-06-17  9:29         ` Andrew Cooper
2016-06-17  9:35           ` Jan Beulich
2016-06-17  9:33         ` Jan Beulich
2016-06-17  9:36           ` Razvan Cojocaru
2016-06-17  9:40             ` Jan Beulich
2016-06-17  9:42               ` Razvan Cojocaru
2016-06-17 19:05           ` Tamas K Lengyel
2016-06-16 14:07 ` [PATCH 2/7] vm-event: VM_EVENT_FLAG_DENY requires VM_EVENT_FLAG_VCPU_PAUSED Corneliu ZUZU
2016-06-16 16:11   ` Tamas K Lengyel
2016-06-17  8:43     ` Corneliu ZUZU
2016-06-21 11:26     ` Corneliu ZUZU
2016-06-21 15:09       ` Tamas K Lengyel
2016-06-22  8:34         ` Corneliu ZUZU
2016-06-16 14:08 ` [PATCH 3/7] vm-event: introduce vm_event_vcpu_enter Corneliu ZUZU
2016-06-16 14:51   ` Jan Beulich
2016-06-16 20:10     ` Corneliu ZUZU
2016-06-16 20:33       ` Razvan Cojocaru
2016-06-17 10:41         ` Corneliu ZUZU
2016-06-17  7:17       ` Jan Beulich
2016-06-17 11:13         ` Corneliu ZUZU
2016-06-17 11:27           ` Jan Beulich
2016-06-17 12:13             ` Corneliu ZUZU
2016-06-16 16:17   ` Tamas K Lengyel
2016-06-17  9:19     ` Corneliu ZUZU
2016-06-17  8:55   ` Julien Grall
2016-06-17 11:40     ` Corneliu ZUZU
2016-06-17 13:22       ` Julien Grall
2016-06-16 14:09 ` [PATCH 4/7] vm-event/x86: use vm_event_vcpu_enter properly Corneliu ZUZU
2016-06-16 15:00   ` Jan Beulich
2016-06-16 20:20     ` Corneliu ZUZU
2016-06-17  7:20       ` Jan Beulich
2016-06-17 11:23         ` Corneliu ZUZU
2016-06-16 16:27   ` Tamas K Lengyel
2016-06-17  9:24     ` Corneliu ZUZU
2016-06-16 14:10 ` [PATCH 5/7] x86: replace monitor_write_data.do_write with enum Corneliu ZUZU
2016-06-16 14:12 ` [PATCH 6/7] vm-event/arm: move hvm_event_cr->common vm_event_monitor_cr Corneliu ZUZU
2016-06-16 15:16   ` Jan Beulich
2016-06-17  8:25     ` Corneliu ZUZU
2016-06-17  8:38       ` Jan Beulich [this message]
2016-06-17 11:31         ` Corneliu ZUZU
2016-06-21  7:08       ` Corneliu ZUZU
2016-06-21  7:20         ` Jan Beulich
2016-06-21 15:22           ` Tamas K Lengyel
2016-06-22  6:33             ` Jan Beulich
2016-06-16 16:55   ` Tamas K Lengyel
2016-06-17 10:37     ` Corneliu ZUZU
2016-06-16 14:13 ` [PATCH 7/7] vm-event/arm: implement support for control-register write vm-events Corneliu ZUZU
2016-06-16 14:26   ` Julien Grall
2016-06-16 19:24     ` Corneliu ZUZU
2016-06-16 21:28       ` Julien Grall
2016-06-17 11:46         ` Corneliu ZUZU
2016-06-16 16:49   ` Julien Grall
2016-06-17 10:36     ` Corneliu ZUZU
2016-06-17 13:18       ` Julien Grall
2016-06-22 16:35       ` Corneliu ZUZU
2016-06-22 17:17         ` Julien Grall
2016-06-22 18:39           ` Corneliu ZUZU
2016-06-22 19:37             ` Corneliu ZUZU
2016-06-22 19:41               ` Julien Grall
2016-06-23  5:31                 ` Corneliu ZUZU
2016-06-23  5:49                   ` Corneliu ZUZU
2016-06-23 11:11                     ` Julien Grall
2016-06-24  9:32                       ` Corneliu ZUZU
2016-06-23 11:00           ` Julien Grall

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