From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Wed, 12 Oct 2022 16:30:05 +0300
Subject: [PATCH v2 02/36] gpiolib: cdev: Add missed header(s)
In-Reply-To: <Y0SyVwjDl7NGfTPn@sol>
References: <20221010201453.77401-1-andriy.shevchenko@linux.intel.com>
 <20221010201453.77401-3-andriy.shevchenko@linux.intel.com>
 <Y0SyVwjDl7NGfTPn@sol>
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On Tue, Oct 11, 2022 at 08:01:27AM +0800, Kent Gibson wrote:
> On Mon, Oct 10, 2022 at 11:14:18PM +0300, Andy Shevchenko wrote:

...

> > -#include <linux/gpio.h>
> >  #include <linux/gpio/driver.h>
> > +#include <linux/gpio.h>

> But moving the gpio subsystem header after the gpio/driver is not
> alphabetical ('.' precedes '/') and it read better and made more sense
> to me the way it was.

Okay, I will move it back.

...

> > +#include <linux/seq_file.h>
> 
> I wasn't aware that we use anything from seq_file.
> What am I missing?


Eventually I can answer to your question: the commit 0ae3109a8391
("gpiolib: cdev: add fdinfo output for line request file descriptors")
is what you are missing.

That said, we need this patch.

-- 
With Best Regards,
Andy Shevchenko