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SubjectRe: [PATCH] gpio: drop unnecessary includes from include/linux/gpio/driver.h
On Tue, Jul 04, 2017 at 12:53:34PM +0900, Masahiro Yamada wrote:
>Some of include directives in include/linux/gpio/driver.h are
>unneeded because the header does not need to know the content of
>struct device, irq_chip, etc. Just declare they are structures.
>On the other hand, <linux/irqhandler.h> and <linux/spinlock_types.h>
>turned out to be necessary for irq_flow_handler_t and spinlock_t,
>Each driver should include what it needs without relying on what is
>implicitly included from <linux/gpio/driver.h>. This will cut down
>unnecessary header parsing.
>Signed-off-by: Masahiro Yamada <>
> drivers/gpio/gpio-104-dio-48e.c | 1 +
> drivers/gpio/gpio-104-idi-48.c | 1 +
> drivers/gpio/gpio-104-idio-16.c | 1 +
> drivers/gpio/gpio-pci-idio-16.c | 2 ++
> drivers/gpio/gpio-ws16c48.c | 1 +

The changes to the above drivers look fine to me:

Acked-by: William Breathitt Gray <>

However, this patch as a whole does too many things; I'd like to see it
split-up logically similar to how Andy Shevchenko suggested in his
reply. That should allow ACKs by respective driver maintainers to be
accounted more properly.

William Breathitt Gray

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