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Date:	Tue, 30 Sep 2014 18:10:51 +0800
From:	Chen Gang <gang.chen.5i5j@...il.com>
To:	David Vrabel <david.vrabel@...rix.com>, konrad.wilk@...cle.com,
	ian.campbell@...rix.com, wei.liu2@...rix.com,
	boris.ostrovsky@...cle.com, bhelgaas@...gle.com, jgross@...e.com,
	yongjun_wei@...ndmicro.com.cn, mukesh.rathor@...cle.com
CC:	xen-devel@...ts.xenproject.org,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	linux-pci@...r.kernel.org, linux-scsi@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] xen/xenbus: Use 'void' instead of 'int' for the return
 of xenbus_switch_state()

On 9/30/14 17:55, David Vrabel wrote:
> On 26/09/14 17:36, Chen Gang wrote:
>> When xenbus_switch_state() fails, it will call xenbus_switch_fatal()
>> internally, so need not return any status value, then use 'void' instead
>> of 'int' for xenbus_switch_state() and __xenbus_switch_state().
>>
>> Also need be sure that all callers which check the return value must let
>> 'err' be 0.
>>
>> And also need change the related comments for xenbus_switch_state().
> 
> Since this patch does not fix a bug and there is no unanimous agreement
> on the API change I'm not going to apply it (nor the previous version).
> 

OK, at least for me, it is no problems.

But I still recommend to improve it in the future, it is not a good idea
to let all related things remain in current condition (for me, at lease
need some related code comments for it).


Thanks.
-- 
Chen Gang

Open, share, and attitude like air, water, and life which God blessed
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