[RFT PATCH v2] spi: bcm2835: reduce the abuse of the GPIO API

[Bartosz Golaszewski]

On Fri, Sep 1, 2023 at 2:31 PM Mark Brown <broonie at kernel.org> wrote:
>
> On Fri, Sep 01, 2023 at 02:15:39PM +0200, Linus Walleij wrote:
> > On Fri, Sep 1, 2023 at 1:15 PM Bartosz Golaszewski <brgl at bgdev.pl> wrote:
>
> > > +       struct gpiod_lookup_table *lookup __free(kfree) = NULL;
>
> > Whoa!
> > This is really neat.
> > As noted, it will confuse static checkers at no end, but they just have
> > to adopt. (CC to Dan C if he now runs into this.)
>
> It also doesn't look amazing for humans, it's very not C like...

Once it's widely adopted, you'll see how much clearer and less prone
to bugs in error paths the code becomes with autopointers. It's 2023
dammit, if we can't have flying cars, let's at least get some RAII
into the kernel. :)

Bart