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From: "David Stockwell" <dstockwell@frequency-one.com>
To: "Johan Hedberg" <johan.hedberg@gmail.com>
Cc: "Lucas De Marchi" <lucas.demarchi@profusion.mobi>,
	<linux-bluetooth@vger.kernel.org>
Subject: Re: [PATCH 3/5] avrcp: get/set three-byte company-id
Date: Fri, 9 Sep 2011 18:19:42 -0500	[thread overview]
Message-ID: <83EA6ECBBD0D44FFB9F5CBB90B58E540@freqoneremote> (raw)
In-Reply-To: <20110909123517.GA26219@dell.ger.corp.intel.com>

Hi Johan

-----Original Message----- 
From: Johan Hedberg
Sent: Friday, September 09, 2011 7:35 AM
To: David Stockwell
Cc: Lucas De Marchi ; linux-bluetooth@vger.kernel.org
Subject: Re: [PATCH 3/5] avrcp: get/set three-byte company-id

Hi David,

On Fri, Sep 09, 2011, David Stockwell wrote:
> A short cut: the output is a contiguous array of uint_8, so masking
> with 0xFF should be unnecessary.  Would this be required for non-x86
> (including x86_64) architectures?

Firstly, please don't top-post on this mailing list.

+++++ Sorry...I am quite entrenched in the .Net world by day, so I forgot. 
Then did not send an apology afterwards.

If you don't do "& 0xff" and the value you're trying to assign to cid[n]
is greater than 0xff isn't the result of the integer overflow that
follows essentially the same as if you had done "% (0xff + 1)" (which is
not what you want in this case).

+++++ I saw the rest of the discussion...cheers.

Johan
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  parent reply	other threads:[~2011-09-09 23:19 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-08 23:14 [PATCH 0/5] avrcp: fixes and pdu-continuation Lucas De Marchi
2011-09-08 23:14 ` [PATCH 1/5] avrcp: use LAST element on media_info_id enum Lucas De Marchi
2011-09-08 23:14 ` [PATCH 2/5] avrcp: fix handling of metadata item 0x7 Lucas De Marchi
2011-09-08 23:14 ` [PATCH 3/5] avrcp: get/set three-byte company-id Lucas De Marchi
2011-09-09 10:41   ` Johan Hedberg
2011-09-09 12:21     ` David Stockwell
2011-09-09 12:35       ` Johan Hedberg
2011-09-09 12:46         ` Johan Hedberg
2011-09-09 13:04           ` Lucas De Marchi
2011-09-09 23:19         ` David Stockwell [this message]
2011-09-08 23:14 ` [PATCH 4/5] avrcp: limit avrcp packet size to the MTU of AV/C Lucas De Marchi
2011-09-08 23:14 ` [PATCH 5/5] avrcp: implement pdu continuation request and abort Lucas De Marchi

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