Re: [PATCH] gpio: Do not trigger WARN() with sysfs gpio export/unexport

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Fri, Nov 6, 2020 at 10:27 AM Bartosz Golaszewski
<bgolaszewski@xxxxxxxxxxxx> wrote:

> How about we change that to an unconditional WARN() everytime the user
> tries to export a GPIO over sysfs so that people switch over to the
> character device?
>
> I'm joking a bit but I think it's time to start discouraging people
> from using sysfs and a warning may be a good start.

I think maybe we should hide the Kconfig for sysfs under
EXPERT as well.

I would also seriously don't mind to make CDEV compulsory
for GPIO_SYSFS.

GPIO_SYSFS
   depends on EXPERT
   select GPIO_CDEV

If people to bad only want the deprecated sysfs they can patch
their kernel to get rid of it :/

I will send a patch for this.

Yours,
Linus Walleij