linux-kernel - Re: [PATCH v1 1/1] checkpatch: Add dev_err

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Date:   Fri, 1 Dec 2023 18:20:19 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org, Andy Whitcroft <apw@...onical.com>,
        Joe Perches <joe@...ches.com>,
        Dwaipayan Ray <dwaipayanray1@...il.com>,
        Lukas Bulwahn <lukas.bulwahn@...il.com>
Subject: Re: [PATCH v1 1/1] checkpatch: Add dev_err_probe() to the list of
 Log Functions

On Fri, Dec 01, 2023 at 06:17:51PM +0200, Andy Shevchenko wrote:
> On Fri, Dec 01, 2023 at 08:01:28AM -0800, Guenter Roeck wrote:
> > On 12/1/23 07:14, Andy Shevchenko wrote:
> > > dev_err_probe() is missing in the list of Log Functions and hence
> > > checkpatch issues a warning in the cases when any other function
> > > in use won't trigger it. Add dev_err_probe() to the list to behave
> > > consistently.

...

> > Not sure if I agree. The difference here is that dev_err_probe()
> > has two additional parameters ahead of the string. I would very much prefer
> > to have those two additional parameters on a separate line if the string is
> > too long to fit in 100 columns with those two parameters on the same line.
> > In other words, I very much prefer
> > 
> > 	dev_err_probe(dev, -ESOMETHING,
> > 		      "very long string");
> > over
> > 	dev_err_probe(dev, -ESOMETHING, "very long string");
> > 
> > and I don't really think that the latter has any benefits.
> > 
> > Also note that other dev_xxx() log functions are not included in the above test
> > and would still generate warnings. Accepting
> > 
> > 	dev_err_probe(dev, -ESOMETHING, "very long string");
> > but not
> > 	dev_err(dev, "very long string");
> 
> They are included, see the line previous to the added one.
> (Regexp covers something like x_y_()* and x_*() families with the explicitly

Should read: x_y_*()

>  listed * suffixes.)
> 
> That's why _this_ change makes it consistent.
> 
> > doesn't really make sense to me.

-- 
With Best Regards,
Andy Shevchenko