linux-kernel - Re: [PATCH] staging: rts5208: Replace delay function.

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Message-ID: <12b375b1-acd3-476e-17bc-b4db22efba69@inria.fr>
Date:   Wed, 18 Oct 2023 12:28:35 +0200 (CEST)
From:   Julia Lawall <julia.lawall@...ia.fr>
To:     Karolina Stolarek <karolina.stolarek@...el.com>
cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        kenechukwu maduechesi <maduechesik@...il.com>,
        outreachy@...ts.linux.dev, shreeya.patel23498@...il.com,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: rts5208: Replace delay function.



On Wed, 18 Oct 2023, Karolina Stolarek wrote:

> On 18.10.2023 09:45, Greg Kroah-Hartman wrote:
> > On Wed, Oct 18, 2023 at 09:32:46AM +0200, Karolina Stolarek wrote:
> > > On 18.10.2023 09:03, Julia Lawall wrote:
> > > >
> > > >
> > > > On Tue, 17 Oct 2023, kenechukwu maduechesi wrote:
> > > >
> > > > > Replace udelay() with usleep_range() for more precise delay handling.
> > > > >
> > > > > Reported by checkpatch:
> > > > >
> > > > > CHECK: usleep_range is preferred over udelay
> > > >
> > > > This message is typically not a good candidate for outreachy patches,
> > > > because you need access to the device to be sure that any change is
> > > > correct.
> > >
> > > Could we add a paragraph on how to pick good checkpatch.pl error to fix to
> > > the Outreachyfirstpatch docs? This could go to "Find a driver to clean up"
> > > section, for example.
> >
> > The ability to find a "good" error changes over time, so this might be
> > hard to do.
>
> I agree, but we can all agree that experimenting with udelay during Outreachy
> is not a good idea, and people should know about it

In general, I think that it is better in the contribution period to do the
wrong thing and then learn about why it is wrong, but this case comes up
over and over, and it is always not the right thing to do, so I added an
appropriate explanation.  Thanks for the suggestion.

julia

>
> All the best,
> Karolina
>
> >
> > good luck!
> >
> > greg k-h
>