linux-kernel - Re: [PATCH V2 2/3] scsi: fix compiler warning for sg

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Date:	Mon, 9 Nov 2015 23:51:35 -0500
From:	Sinan Kaya <okaya@...eaurora.org>
To:	Timur Tabi <timur@...eaurora.org>,
	Andy Shevchenko <andy.shevchenko@...il.com>
Cc:	linux-scsi <linux-scsi@...r.kernel.org>, cov@...eaurora.org,
	jcm@...hat.com, Andy Gross <agross@...eaurora.org>,
	linux-arm-msm@...r.kernel.org,
	linux-arm Mailing List <linux-arm-kernel@...ts.infradead.org>,
	Doug Gilbert <dgilbert@...erlog.com>,
	"James E.J. Bottomley" <JBottomley@...n.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V2 2/3] scsi: fix compiler warning for sg



On 11/9/2015 10:26 PM, Timur Tabi wrote:
> Sinan Kaya wrote:
>>
>> I created this patch back in March with an older version of the compiler
>> and older kernel (3.19). I'm no longer able to reproduce this with this
>> compiler and linux-next.
>>
>> Thread model: posix
>> gcc version 4.8.3 20140401 (prerelease) (crosstool-NG
>> linaro-1.13.1-4.8-2014.04 - Linaro GCC 4.8-2014.04)
>>
>> I'll drop this patch.
>
> Are you sure the compiler handles the old macro correctly?  Maybe it's
> just quiescing the error message, but it's still broken?
>

The code says it is using these macros for small integers only which 
can't overflow. I was trying to get rid of compiler warning and it seems 
to have disappeared.

-- 
Sinan Kaya
Qualcomm Technologies, Inc. on behalf of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a 
Linux Foundation Collaborative Project
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