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Subject: Re: [greybus-dev] [PATCH v2] staging: greybus: Convert uart.c from
 IDR to XArray
To:     "Fabio M. De Francesco" <fmdefrancesco@gmail.com>,
        Johan Hovold <johan@kernel.org>, Alex Elder <elder@kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        greybus-dev@lists.linaro.org, linux-staging@lists.linux.dev,
        linux-kernel@vger.kernel.org, Alex Elder <elder@ieee.org>
Cc:     kernel test robot <lkp@intel.com>
References: <20210814181130.21383-1-fmdefrancesco@gmail.com>
 <5541b638-db1e-26f2-2682-81f35504c9a3@ieee.org>
 <1838037.Ul9q4Z07vA@localhost.localdomain>
From:   Alex Elder <elder@linaro.org>
Message-ID: <335f30c7-8ab4-d46a-d415-e994997a3fa5@linaro.org>
Date:   Wed, 25 Aug 2021 08:45:13 -0500
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On 8/25/21 12:20 AM, Fabio M. De Francesco wrote:
> On Monday, August 16, 2021 4:46:08 PM CEST Alex Elder wrote:
>> On 8/14/21 1:11 PM, Fabio M. De Francesco wrote:
>>> Convert greybus/uart.c from IDR to XArray. The abstract data type XArray
>>> is more memory-efficient, parallelisable, and cache friendly. It takes
>>> advantage of RCU to perform lookups without locking. Furthermore, IDR is
>>> deprecated because XArray has a better (cleaner and more consistent) API.
>>
>> I haven't verified the use of the new API (yet) but I have a few
>> comments on your patch, below.
>>
>> 					-Alex
> 
> Dear Alex,
> 
> On August 16th I submitted the v3 of my patch ("staging: greybus: Convert uart.c 
> from IDR to XArray"), with changes based on the comments you provided.

Yes, I intend to review version 3.  I'm sorry I didn't respond to
your earlier message; I am on vacation this week.

					-Alex
> 
> Could you please take a few minutes to review this too? I would really appreciate it.
> 
> The v3 patch is at https://lore.kernel.org/lkml/20210816195000.736-1-fmdefrancesco@gmail.com/
> 
> Thanks,
> 
> Fabio
> 
> P.S.: I'd also like to know if you think it's worth converting IDA to XArray in order 
> to improve the Greybus driver in staging.
> 
>   
> 
> 
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