linux-kernel - Re: [PATCH v2] staging: greybus: Convert uart.c from IDR to XArray

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Message-ID: <1838037.Ul9q4Z07vA@localhost.localdomain>
Date:   Wed, 25 Aug 2021 07:20:02 +0200
From:   "Fabio M. De Francesco" <fmdefrancesco@...il.com>
To:     Johan Hovold <johan@...nel.org>, Alex Elder <elder@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        greybus-dev@...ts.linaro.org, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org, Alex Elder <elder@...e.org>
Cc:     kernel test robot <lkp@...el.com>
Subject: Re: [PATCH v2] staging: greybus: Convert uart.c from IDR to XArray

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.

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.