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SubjectRe: [PATCH 2/2] staging/iio: Make IIO depend on GENERIC_HARDIRQS
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Geert Uytterhoeven <geert@linux-m68k.org> wrote:

>On m68k (which doesn't support generic hardirqs yet):
>
>drivers/staging/iio/industrialio-trigger.c: In function
>‘iio_trigger_poll’:
>drivers/staging/iio/industrialio-trigger.c:180: error: implicit
>declaration of function ‘generic_handle_irq’
>drivers/staging/iio/industrialio-trigger.c: In function
>‘iio_trigger_poll_chained’:
>drivers/staging/iio/industrialio-trigger.c:200: error: implicit
>declaration of function ‘handle_nested_irq’
>drivers/staging/iio/industrialio-trigger.c: In function
>‘iio_trig_release’:
>drivers/staging/iio/industrialio-trigger.c:379: error: implicit
>declaration of function ‘irq_modify_status’
>drivers/staging/iio/industrialio-trigger.c:382: error: implicit
>declaration of function ‘irq_set_chip’
>drivers/staging/iio/industrialio-trigger.c:384: error: implicit
>declaration of function ‘irq_set_handler’
>drivers/staging/iio/industrialio-trigger.c:388: error: implicit
>declaration of function ‘irq_free_descs’
>drivers/staging/iio/industrialio-trigger.c: In function
>‘iio_trig_subirqmask’:
>drivers/staging/iio/industrialio-trigger.c:402: error: implicit
>declaration of function ‘irq_data_get_irq_chip’
>drivers/staging/iio/industrialio-trigger.c:402: warning: initialization
>makes pointer from integer without a cast
>drivers/staging/iio/industrialio-trigger.c: In function
>‘iio_trig_subirqunmask’:
>drivers/staging/iio/industrialio-trigger.c:411: warning: initialization
>makes pointer from integer without a cast
>drivers/staging/iio/industrialio-trigger.c: In function
>‘iio_allocate_trigger’:
>drivers/staging/iio/industrialio-trigger.c:432: error: implicit
>declaration of function ‘irq_alloc_descs’
>drivers/staging/iio/industrialio-trigger.c:455: error:
>‘handle_simple_irq’ undeclared (first use in this function)
>drivers/staging/iio/industrialio-trigger.c:455: error: (Each undeclared
>identifier is reported only once
>drivers/staging/iio/industrialio-trigger.c:455: error: for each
>function it appears in.)
>
>Hence IIO_TRIGGER should depend on GENERIC_HARDIRQS.
>But as IIO_TRIGGER and IIO_RING_BUFFER form a maze of dependencies and
>selects,
>just make the whole IIO subsystem depend on GENERIC_HARDIRQS.
>
>This dependency also covers !S390, so that one can be removed again.
Dratt We talked about this and thought S390 was the only non generic hard irq left. Should have played safe sorry!
>Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
>---
> drivers/staging/iio/Kconfig | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
>diff --git a/drivers/staging/iio/Kconfig b/drivers/staging/iio/Kconfig
>index f96d5b5..d329635 100644
>--- a/drivers/staging/iio/Kconfig
>+++ b/drivers/staging/iio/Kconfig
>@@ -4,7 +4,7 @@
>
> menuconfig IIO
> tristate "Industrial I/O support"
>- depends on !S390
>+ depends on GENERIC_HARDIRQS
> help
> The industrial I/O subsystem provides a unified framework for
> drivers for many different types of embedded sensors using a
>--
>1.7.0.4

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