linux-kernel - Re: [PATCH v5] gpio: sim: fix an invalid _

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Message-ID: <ZQwQnA/W1TZDJivM@smile.fi.intel.com>
Date:   Thu, 21 Sep 2023 12:45:00 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Bartosz Golaszewski <brgl@...ev.pl>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Kent Gibson <warthog618@...il.com>,
        Alexey Dobriyan <adobriyan@...il.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        akpm@...ux-foundation.org, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH v5] gpio: sim: fix an invalid __free() usage

On Thu, Sep 21, 2023 at 01:12:16AM -0700, Bartosz Golaszewski wrote:
> On Wed, 20 Sep 2023 15:43:47 +0200, Andy Shevchenko
> <andriy.shevchenko@...ux.intel.com> said:
> > On Wed, Sep 20, 2023 at 09:32:53AM +0200, Bartosz Golaszewski wrote:

...

> > As for the material to be backported it's fine, but I'm wondering if we
> > actually can add the entries in a sorted manner, so we would need the exact
> > what I mentioned in previous review round, just search backwards to the first
> > satisfying entry. I don't believe the adding an entry to the list is a
> > hot-path, so would be fine to call list_sort().
> 
> Given the need for the callback function, this would result in bigger code.

Is it a problem?

On the below I kinda agree.

> Also calling:
> 
>     list_add_tail();
>     list_sort();
> 
> is not very elegant. I would possibly go for adding list_add_sorted() but
> that's a separate change for the future.

Note, we do this for the GPIO bases already.

-- 
With Best Regards,
Andy Shevchenko