linux-kernel - Re: [PATCH 1/2] staging: most: dim2: read done

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Date:   Tue, 18 Oct 2022 19:12:45 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Deepak R Varma <drv@...lo.com>
Cc:     outreachy@...ts.linux.dev, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] staging: most: dim2: read done_buffers count locally
 from HDM channel

On Tue, Oct 18, 2022 at 10:19:21PM +0530, Deepak R Varma wrote:
> The function dim_get_channel_state only serves to initialize the ready and
> done_buffers fields of the structure passed as its second argument. In
> service_done_flag, this structure is never used again and the only purpose
> of the call is to get the value that is put in the done_buffers field.
> But that value is just the done_sw_buffers_number field of the call's
> first argument.  So the whole call is useless, and we can just replace it
> with an access to this field.
> 
> This change implies that the variable st is no longer used, so drop it as
> well.
> 
> Signed-off-by: Deepak R Varma <drv@...lo.com>
> ---
> 
> PLEASE NOTE:
>    1. I have only built the module on my machine, but have not tested it.
>       I am not sure how to test this change. I am willing to test it with
>       appropriate guidance provided I have the necessary hardware.
>    2. This was a standalone patch earlier. It is now combined into a patch set
>       with another patch for the same driver. Hence I am carry forwarding the
>       change log for this patch here:
> 
> Changes in v3:
>    1. The patch log message is further improved. This revised verbiage is as
>       thankfully provided by julia.lawall@...ia.fr
> 
> Changes in v2:
>    1. Update patch log message to be more descriptive about the reason for change.
>       Feedback provided by julia.lawall@...ia.fr
> 

You need to say this is a v3 in the subject line as documented :(